CN107905792A - A kind of embedded shaft excavation construction technology - Google Patents
A kind of embedded shaft excavation construction technology Download PDFInfo
- Publication number
- CN107905792A CN107905792A CN201711201707.9A CN201711201707A CN107905792A CN 107905792 A CN107905792 A CN 107905792A CN 201711201707 A CN201711201707 A CN 201711201707A CN 107905792 A CN107905792 A CN 107905792A
- Authority
- CN
- China
- Prior art keywords
- tunnel
- hole
- pilot tunnel
- hanging basket
- shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000010276 construction Methods 0.000 title claims abstract description 65
- 238000005516 engineering process Methods 0.000 title claims abstract description 24
- 238000009412 basement excavation Methods 0.000 title claims abstract description 19
- 239000011435 rock Substances 0.000 claims abstract description 24
- 238000004880 explosion Methods 0.000 claims description 39
- 238000005553 drilling Methods 0.000 claims description 29
- 229910000831 Steel Inorganic materials 0.000 claims description 22
- 239000010959 steel Substances 0.000 claims description 22
- 238000005422 blasting Methods 0.000 claims description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 20
- 239000002699 waste material Substances 0.000 claims description 16
- 241000282326 Felis catus Species 0.000 claims description 9
- 239000000843 powder Substances 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 8
- 238000009434 installation Methods 0.000 claims description 6
- 239000002893 slag Substances 0.000 claims description 5
- 239000002360 explosive Substances 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 4
- 238000009826 distribution Methods 0.000 claims description 3
- 239000000284 extract Substances 0.000 claims description 3
- 230000013632 homeostatic process Effects 0.000 claims description 3
- 230000008676 import Effects 0.000 claims description 3
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 230000000505 pernicious effect Effects 0.000 claims description 3
- 230000002787 reinforcement Effects 0.000 claims description 3
- 230000003014 reinforcing effect Effects 0.000 claims description 3
- 239000007921 spray Substances 0.000 claims description 3
- 230000005641 tunneling Effects 0.000 claims description 3
- 210000003205 muscle Anatomy 0.000 claims description 2
- 238000012552 review Methods 0.000 claims description 2
- 238000005286 illumination Methods 0.000 claims 1
- 238000003908 quality control method Methods 0.000 abstract description 5
- 238000013461 design Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000004575 stone Substances 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 239000003245 coal Substances 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000010438 granite Substances 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 239000003621 irrigation water Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D1/00—Sinking shafts
- E21D1/03—Sinking shafts mechanically, e.g. by loading shovels or loading buckets, scraping devices, conveying screws
- E21D1/06—Sinking shafts mechanically, e.g. by loading shovels or loading buckets, scraping devices, conveying screws with shaft-boring cutters
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D1/00—Sinking shafts
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a kind of embedded shaft excavation construction technology, including the construction of first pilot tunnel and shaft section area dig, and carry out first pilot drive from bottom to top, carry out vertical shaft from top to bottom and dig, top is manually skimmed, and bottom mechanical is slagged tap；The advantage of the invention is that：It is adaptable to the Construction of Silo of live rock geology situation complexity；It is not very high to live site requirements, can meets the narrow construction requirement in scene；Safety assurance is efficient；Quality control is convenient；Speed is fast, can shorten construction period, improves construction speed.
Description
Technical field
The present invention relates to a kind of embedded vertical shaft of batholith, specifically a kind of embedded shaft excavation construction technology,
Belong to the embedded vertical shaft field of batholith.
Background technology
Shaft excavation technology is widely used in coal, mine and large water conservancy hydroelectric engineering, but in
The general depth of vertical shaft of state's country's Construction of Hydropower Engineering is within 300m, and the vertical shaft more than 300m is more rare, design department one
As do not design high deep shaft.Since advanced Construction of Silo is of high cost, difficulty is big, construction speed is slow, easily there is security incident.
As power station enters the exploitation of upper reach, the difficulty of construction in power station increases, while can not according to the characteristics of upper reach
It avoid the need for the deep shaft of design minor diameter.Since the deep shaft of minor diameter is in the world also in the initial trial stage, and
Do not apply on a large scale.
Shaft section area is narrow and small, and operation side is narrow, and granite hard texture is crisp, is not easy to be molded by big gun, and rock weathering is tight in addition
Weight, cranny development, how to ensure safe construction is main difficult point and emphasis.
The content of the invention
To solve the above-mentioned problems, the present invention devises a kind of embedded shaft excavation construction technology, to live rock
The Construction of Silo of matter situation complexity is adaptable；It is not very high to live site requirements, can meets the narrow construction in scene
It is required that；Safety assurance is efficient；Quality control is convenient；Speed is fast, can shorten construction period, improves construction speed.
The technical scheme is that：
A kind of embedded shaft excavation construction technology, comprise the following steps：
S1, first pilot tunnel construction：
S1-1, in proposed silo bottom dig horizontal tunnel；
Before S1-2, vertical shaft start construction, first by proposed Shaft Location center total powerstation setting-out on proposed shaft top ground
Out, using hidden hole drilling in the first pilot tunnel that proposed Shaft Location center vertical hole diameter is 110mm, first pilot tunnel bottom and horizontal tunnel
Hole communicates, and when drilling adjusts the position of hidden hole drilling drilling machine, ensures hole deviation deviation within 10cm, and first pilot tunnel position review is errorless
Afterwards, drill two holes footpath is the hole of 110mm as lifting of hanging basket lacing hole, lifting of hanging basket lacing hole bottom again vertically for first pilot tunnel both sides
Portion is communicated with horizontal tunnel, and first pilot tunnel is connected with lifting of hanging basket lacing hole, after the completion of first pilot tunnel and lifting of hanging basket wire rope handling hole drilling,
Hoist engine is set up in proposed Shaft Location center top, steel wire rope of windlass uses steel wire rope, and steel wire rope is from top to bottom passed through and hung
Basket lifts lacing hole, reaches bottom level tunnel position, and hanging basket is fixed on a steel cord, starts hoist engine lifting hanging basket and extremely makees
Industry face, you can carry out first pilot tunnel construction；
Air supply device and supply and discharge water installations, and power supply and lighting device are set in S1-3, first pilot tunnel and horizontal tunnel；
When S1-4, first pilot tunnel construction, first pilot tunnel of constructing from bottom to top, with hoist engine by after lifting of hanging basket hanging basket to work surface, is used
Depth of the vapour leg formula air drill using pre- one row of subdrilling on the rock face of the first pilot tunnel side wall of wet drilling method perpendicular to first pilot tunnel side wall
The bolthole of 1m, bolthole are distributed on first pilot tunnel side wall in sector, when boring next row bolthole, by the good anchor pole of a upper gang drill
Diameter of phi 25mm anchor poles are inserted into hole, the exposed 1m of anchor pole, hanging basket is placed on anchor pole and is fixed, that is, starts to carry out from bottom to top
Next row blast hole drill；
S1-5, after the completion of often arranging blast hole drill, be lowered into horizontal tunnel ground by hanging basket, drilling machine unloaded, and loads explosion and uses
Product, are promoted to anchor pole hole site hanging basket are placed on anchor pole and fix, and carry out powder charge, during powder charge, by detonator lead Unified Set
In be fixed up to first pilot tunnel side wall side, ensure not because hanging basket decentralization influences the detonator and explosive that have installed, after the completion of powder charge,
Hanging basket is unloaded in horizontal tunnel, is transported to by loading machine outside horizontal tunnel, steel wire rope is rolled with hoist engine, avoids explosion pair
The damage of steel wire rope, first pilot tunnel blasting sequence are that each separate explosion waste can be all fallen into the horizontal tunnel of lower part from the bottom to top,
The explosion waste in horizontal tunnel is transported to outside horizontal tunnel using loading machine, when first pilot tunnel is constructed, is set in horizontal tunnel import
An axial flow blower is put, air hose is connected to first pilot tunnel bottom, it is necessary to open axial flow blower when divulging information, does not stop to send into first pilot tunnel
Wind, pernicious gas in first pilot tunnel is discharged from first pilot tunnel to outside top；
S2, shaft section area dig：
S2-1, using total powerstation come out four angle setting-outs of vertical shaft, the arrangement extension control stake on the outside of four angles, control stake arrangement
At criterion distance size 1m, when next explosion circulation starts to bore blast hole, using ceiling hammer utilize top extension control stake into
Row unwrapping wire, after every 3 separate explosion circulation, is checked using total powerstation；
S2-2, with vapour leg formula air drill use wet drilling method, for free face from top to bottom carries out being segmented using first pilot tunnel side wall quick-fried
It is broken, the photoface exploision of perimeter blasting hole；Divide 2-3 sections of explosions according to cross dimensions when shaft section area digs, during topmost drillhole blasting,
The quick-fried first pilot tunnel peripheral part of subdrilling, makes vertical shaft horizontal section be tilted in " step-like " oblique first pilot tunnel, vertical shaft tunneling boring digs
When, divide sequence explosion, first pilot tunnel perimeter blasting hole of first detonating, the rear section periphery hole that detonates, utilizes " step-like " explosion, formed
Part waste is thrown into first pilot tunnel by free face, the photoface exploision of perimeter blasting hole, blasting impact, using manually going out in work surface
Slag, bottom level tunnel is fallen into by waste by first pilot tunnel, then waste is transported to outside hole by loading machine；
When S2-3, first few explosion circulation are slagged tap, manually rock ballast is gone out to first pilot tunnel, wouldn't be transported outside hole, makes first pilot tunnel
Interior rock ballast is accumulated to 3m below work surface, when explosion circulation afterwards is slagged tap, is slagged tap in horizontal tunnel by loading machine, slagged tap every time
Rock ballast ensures top personnel's job safety, while ensure guide apart from work surface height within 3m highly in the first pilot tunnel of guarantee
Hole hole wall homeostasis；
After S2-4, vertical shaft dig deep 3m, top sets safety to go along with sb. to guard him using steel pipe and Dense mesh screen, while carries out anchor to shaft wall
Supporting is sprayed, is carrying out carrying out bolt-spary supports at the same time, shaft wall cat ladder, is used up and down for operation dough figurine person；
S2-5, circulation above-mentioned steps continue shaft section area and dig.
Wherein, the air supply device is broadly divided into construction device with the wind and natural device with the wind, and construction device with the wind includes
The air compressor machine being arranged in outside horizontal tunnel, air-pressure tube used for air compressor is by fresh air conveying to work surface；Natural device with the wind bag
Include the axial flow blower being arranged in outside horizontal tunnel, axial flow blower is with wind band by fresh air conveying to work surface.
Wherein, the supply and discharge water installations include setting and extract river water with immersible pump in horizontal tunnel, immersible pump and pass through pvc pipe
Send to work surface position.
Wherein, the power supply uses the safe voltage of 36V with lighting device, is laid to working face, set with insulated cable
Distribution box, is leaked using one lock one of a machine and arranged.
As the preferred solution of the present invention, the square hole at the top of the hanging basket with diameter of phi 10mm reinforcement weldings into 15*20cm
Net, principal rod of deciding is welded using 25 mm reinforcing bars " cross " of diameter of phi.
As the preferred solution of the present invention, the cat ladder is to lengthen former rock-bolt length, and afterbody is prefabricated into U-typed shape, anchor
The bolthole bored on the long end insertion shaft wall of bar, short end are fixed with reinforced mesh, and short end length is after 20-25cm, spray concrete
As cat ladder.
Compared with prior art, the advantage of the invention is that：
（1）Construction technology of the present invention is adaptable to the Construction of Silo of live rock geology situation complexity；
（2）Construction technology of the present invention is not very high to live site requirements, can meet the narrow construction requirement in scene；
（3）Safety assurance is efficient in construction technology construction of the present invention；
（4）Construction technology quality control on construction of the present invention is convenient；
（4）Construction technology speed of application of the present invention is fast, can shorten construction period, improves construction speed.
The invention will be further described with reference to the accompanying drawings and examples.
Brief description of the drawings
Fig. 1 is the first pilot tunnel constructing structure schematic diagram of the present invention.
The shaft section area that Fig. 2 is the present invention digs structure diagram.
Embodiment
The preferred embodiment of the present invention is illustrated below, it will be appreciated that preferred embodiment described herein is only used
In the description and interpretation present invention, it is not intended to limit the present invention.
Embodiment 1
As illustrated in fig. 1 and 2, a kind of embedded shaft excavation construction technology, comprise the following steps that：
S1, first pilot tunnel construction：
S1-1, in proposed 10 bottom of vertical shaft dig horizontal tunnel 2；
Before S1-2, vertical shaft start construction, first by proposed 10 place-centric total powerstation of vertical shaft in proposed 10 top ground 1 of vertical shaft
Setting-out comes out, using hidden hole drilling proposed Shaft Location center vertical hole diameter be 110mm first pilot tunnel 3, first 3 bottom of pilot tunnel with
Horizontal tunnel 2 communicates, and when drilling adjusts the position of hidden hole drilling drilling machine, ensures hole deviation deviation within 10cm, first 3 position of pilot tunnel
Check it is errorless after, first 3 both sides of pilot tunnel vertically again drill two holes footpath be 110mm hole as lifting of hanging basket lacing hole 4, hanging basket carries
Rise 4 bottom of lacing hole to communicate with horizontal tunnel 2, first pilot tunnel 3 is connected with lifting of hanging basket lacing hole 4, and first pilot tunnel 3 and lifting of hanging basket are worn
After the completion of cord hole 4 drills, 3T hoist engines 5 are set up at the top of proposed 10 place-centric of vertical shaft, 5 steel wire rope 6 of hoist engine uses 16# steel
Cord, steel wire rope 6 from top to bottom lift lacing hole through hanging basket 7, reach 2 position of bottom level tunnel, hanging basket 7 is fixed on steel
In cord 6, when making hanging basket 7, the square hole net by the top of hanging basket 7 with diameter of phi 10mm reinforcement weldings into 15*20cm, using diameter
25 mm reinforcing bars " cross " of Φ weld principal rod of deciding, and effectively prevent top falling rocks, start hoist engine 5 and lift hanging basket 7 to operation
Face, you can carry out first pilot tunnel 3 and construct, first pilot tunnel 3 as ventilation, lifting hole, also serves as the axial line control that first pilot tunnel 3 excavates
Hole, it is necessary to assure the axial location of pilot hole 3 is correct；
Air supply device and supply and discharge water installations, and power supply and lighting device are set in S1-3, first pilot tunnel 3 and horizontal tunnel 2, its
In, the air supply device is broadly divided into construction device with the wind and natural device with the wind, and construction device with the wind includes being arranged in level
Air compressor machine outside tunnel 2, air-pressure tube used for air compressor need fresh air conveying to work surface, the air feed of incorporation engineering, pneumatics
Type number is taken according to reality with selection by winnowing；Natural device with the wind includes the axial flow blower being arranged in outside horizontal tunnel 2, and axial flow blower can
To set more, fresh air outside horizontal tunnel is sent to first pilot tunnel 3, foul atmosphere in first pilot tunnel 3 is drained into first pilot tunnel 3
Outside；Wherein, the supply and discharge water installations include setting and extract river water with immersible pump in horizontal tunnel 2, immersible pump and pass through diameter phi
45mmPVC pipes are sent to work surface position；Wherein, the power supply uses the safe voltage of 36V with lighting device, is applied with insulated cable
If to working face, distribution box is set, is leaked and arranged using one lock one of a machine, first 3 explosion of pilot tunnel, vertical shaft dig explosion using 24 it is small when
Duty, it is necessary to assure internal-external lighting；
When S1-4, first pilot tunnel 3 are constructed, first pilot tunnel 3 of constructing from bottom to top, hanging basket 7 is lifted to work surface with hoist engine 5 by hanging basket 7
Afterwards, with YT28 type vapour leg formulas air drill using first 3 side wall of pilot tunnel of wet drilling method rock face on pre- one row of subdrilling perpendicular to elder generation
The bolthole of the deep 1m of pilot tunnel side wall, per tour operating personnel 3, direct operation personnel 2 on hanging basket（Driller 1, aids in driller
1）, during each drilling construction, first 7 sky of hanging basket is hung once with hoist engine 5, after ensureing the normal operations such as hoist engine 5, hanging basket 7
Manned again, bolthole is distributed on first pilot tunnel side wall in sector, when boring next row bolthole, by the good bolthole of a upper gang drill
Diameter of phi 25mm anchor poles are inserted into, the exposed 1m of anchor pole, hanging basket 7 is placed on anchor pole and is fixed, that is, starts to carry out down from bottom to top
One row's blast hole drill, summarizes the array pitch for per separate explosion cyclic advance depth, controlling every row's bolthole, ensures 7 apex distance of hanging basket
From operation top rock face 20cm or so；
S1-5, after the completion of often arranging blast hole drill, be lowered into horizontal 2 ground of tunnel by hanging basket 7, drilling machine unloaded, and loads explosion
Articles for use, are promoted to anchor pole hole site hanging basket 7 are placed on anchor pole and fix, and carry out powder charge, during powder charge, detonator lead is unified
It is concentrated to first 3 side wall side of pilot tunnel to be fixed up, ensures the detonator and explosive not installed by the decentralization influence of hanging basket 7, powder charge is complete
Cheng Hou, hanging basket 7 is unloaded in horizontal tunnel 2, is transported to by loading machine outside horizontal tunnel 2, is rolled steel wire rope 6 with hoist engine 5,
Damage of the explosion to steel wire rope 6 is avoided, first 3 blasting sequence of pilot tunnel is from the bottom to top, each separate explosion waste can all fall into lower part
Horizontal tunnel 2 in, the explosion waste in horizontal tunnel 2 is transported to outside horizontal tunnel 2 using loading machine, when first pilot tunnel 3 is constructed,
One axial flow blower is set in horizontal 2 import of tunnel, air hose is connected to first 3 bottom of pilot tunnel, it is necessary to open axis stream wind when divulging information
Machine, does not stop to blow into first pilot tunnel 3, and pernicious gas in first pilot tunnel 3 is discharged from first pilot tunnel 3 to outside top, and the quick-fried of the cubic meter of stone is dug in hole
Broken rock ballast, which is abandoned, to be placed on away from the range of 30m, reusing transport vehicle at first 3 hole of pilot tunnel and waste is transported to Dumping Sites；
S2, shaft section area dig：
S2-1, using total powerstation come out 10 4 angle setting-outs of vertical shaft, and arrangement extension control stake, controls stake cloth on the outside of four angles
Put at criterion distance size 1m, when next explosion circulation starts to bore blast hole, top extension control stake is utilized using ceiling hammer
Unwrapping wire is carried out, after every 3 separate explosion circulation, is checked using total powerstation；
S2-2, with YT28 type vapour leg formula air drills use wet drilling method, is from top to bottom carried out for free face using first 3 side wall of pilot tunnel
Segment blast, the photoface exploision of perimeter blasting hole；Divide 2-3 sections of explosions according to cross dimensions when 10 section of vertical shaft digs, topmost bores
During the explosion of hole, the quick-fried first pilot tunnel peripheral part of subdrilling, makes 10 horizontal section 9 of vertical shaft be tilted in " step-like " oblique first pilot tunnel 3, erects
When well tunneling boring digs, divide sequence explosion, first pilot tunnel perimeter blasting hole of first detonating, the rear section periphery hole that detonates, utilizes " step
Shape " explosion, forms free face, and periphery hole Smooth Blasting Effects are more preferable, and part rock ballast can be thrown into first pilot tunnel 3 by blasting impact,
Reduce amount of slag；And slag tap on inclined-plane easily, simpler, perimeter blasting hole photoface exploision is operated, blasting impact is by part
Waste is thrown into first pilot tunnel 3, and using manually slagging tap in work surface, waste fallen into bottom level tunnel 2 by first pilot tunnel 3, then by
Waste is transported to outside horizontal tunnel 2 by loading machine；
When S2-3, first few explosion circulation are slagged tap, manually rock ballast is gone out to first pilot tunnel 3, wouldn't be transported outside hole, makes first pilot tunnel
Rock ballast is accumulated to 3m below work surface in 3, when explosion circulation afterwards is slagged tap, is slagged tap in horizontal tunnel 2 by loading machine, gone out every time
Slag highly ensures in first pilot tunnel that rock ballast within 3m, ensures top personnel's job safety, while ensure elder generation apart from work surface height
3 hole wall homeostasis of pilot tunnel；
After S2-4, vertical shaft 10 dig deep 3m, top sets safety to go along with sb. to guard him 8 using steel pipe and Dense mesh screen, while to 10 borehole wall of vertical shaft
Bolt-spary supports is carried out, is carrying out carrying out bolt-spary supports at the same time, shaft wall cat ladder, is used up and down for operation dough figurine person, cat ladder is
Former rock-bolt length is lengthened, afterbody is prefabricated into U-typed shape, the bolthole bored on the long end insertion shaft wall of anchor pole, short end and steel
Muscle mesh sheet is fixed, and short end length becomes cat ladder after 20-25cm, spray concrete；
S2-5, circulation above-mentioned steps continue shaft section area and dig.
A kind of embedded shaft excavation construction technology of the present embodiment, when construction, must carry out stringent quality control：
Shaft excavation quality control procedure, the first step are set about from construction survey, using total powerstation repeated measurement vertical shaft center line
And contour line, the stringent first pilot tunnel control hole position of control.During first pilot tunnel pilot hole drilling, hidden hole drilling installs vertically, using level
Ruler control hidden hole drilling is spent vertically；Hidden hole drilling drills to certain depth, using inclinometer measure hole deviation, such as find hole deviation it is larger and
When adjust hidden hole drilling angle, ensure pilot hole bottom and vertical shaft centre deviation within 20cm.
When first pilot tunnel excavates from bottom to top, in strict accordance with pilot control hole with arranging blasthole, ensure rock during not because of explosion
Stone discontinuity and phenomena such as deficient quick-fried, the guide's hole axis offset occurred.
When vertical shaft digs, contour line periphery hole is evenly arranged, specific to arrange that spacing suitably be adjusted according to rock rank.Such as
The development of fruit rock is poor, can not form Smooth Blasting Effects, can use encryption periphery hole, reduce periphery hole explosive payload, periphery hole
The method of spaced loading is adjusted.
In digging process, the geological personnel for the designing unit that works good in time, carries out geological record work and defect Ministry of Geology
Position processing work.
Application example one
Two ditch-water warehouse compartments are in San Tanghu townshiies of Hami Barkol county, not Wula Shan Mountain north slope by the emperor himself, dam site above master control basin
Area is 83km2, 456.1 ten thousand m3 of Average Annual Runoff, 413.59 ten thousand m of engineering aggregate storage capacity3.Two ditch reservoirs are one with work
Based on industry supplies water, the key water control project of the multiple targets such as flood control, ecological protection comprehensive utilization is taken into account.Two ditch reservoir fractions are 97%,
Reservoir is every year 263.08 ten thousand m of downstream industry water supply after building up3.Mark the price 89,980,000 yuan in engineering.Two ditch reservoir hinges are main
Building includes permanent auxiliary equipment, the diversion tunnel vertical shafts such as barrage, spillway, water conservancy diversion water release tunnel and upper dam road and opens
Dig depth 44.5m.
Using the construction technology of the present invention, first pilot tunnel started to construct on November 2nd, 2012, and November 13, construction was completed,
Vertical shaft is digged to be proceeded by with November 18th, 2012, and December 21, construction was completed, and completed vertical shaft rock blasting 4224m3.Water conservancy diversion
After hole vertical shaft stopped excavation completion using the winter in 2012, it ensure that vertical shaft concrete placings in 2013 are smoothly completed on schedule, guarantee is always applied
The work duration.
Application example two
It is to receive Hai Xiang in Xinjiang Yili of China Zhaosu County flood that great Hong, which receives extra large reservoir engineering, reservoir build up after mainly for the county town people that should come to life
85% domestic water, takes into account mining under reservoir agricultural irrigation water, 9,080,000 m3 of total reservoir storage.Mark the price 1.47 hundred million yuan in engineering.
Great Hong receive the main water retaining structure of extra large reservoir engineering, flood releasing structure composition, specifically include barrage, right bank water conservancy diversion and emptying
Overflow the composition such as Hongdong for hole, right bank conveyance tunnel, left bank, and project scale is small for IV etc.（1）Type engineering, conveyance tunnel shaft excavation depth
29m。
Using the construction technology of the present invention, the first pilot tunnel construction time started is on 2 24th, 2017, the end time 2017
Years 29 days 2 months, it be on March 1st, 2017 that vertical shaft, which digs the time started, and the end time is on March 22nd, 2017, the completion vertical shaft cubic meter of stone
Explosion 1350m3.After the completion of conveyance tunnel shaft excavation, vertical shaft concrete placings are being carried out at this stage, ensure that the construction period, are being obtained
The multi-party favorable comments such as management, owner, design.
Raw materials used in the present invention is to commonly use raw material in the production of this area, can be obtained from market, and for production
As a result will not have an impact；Various equipment employed in the present invention, are the conventional equipment used in the production technology of this area,
And the operation of each equipment, parameter etc. are carried out according to routine operation, have no special feature.
Claims (6)
1. a kind of embedded shaft excavation construction technology, it is characterised in that comprise the following steps：
S1, first pilot tunnel construction：
S1-1, in proposed silo bottom dig horizontal tunnel；
Before S1-2, vertical shaft start construction, first by proposed Shaft Location center total powerstation setting-out on proposed shaft top ground
Out, using hidden hole drilling in the first pilot tunnel that proposed Shaft Location center vertical hole diameter is 110mm, first pilot tunnel bottom and horizontal tunnel
Hole communicates, and when drilling adjusts the position of hidden hole drilling drilling machine, ensures hole deviation deviation within 10cm, and first pilot tunnel position review is errorless
Afterwards, drill two holes footpath is the hole of 110mm as lifting of hanging basket lacing hole, lifting of hanging basket lacing hole bottom again vertically for first pilot tunnel both sides
Portion is communicated with horizontal tunnel, and first pilot tunnel is connected with lifting of hanging basket lacing hole, after the completion of first pilot tunnel and lifting of hanging basket wire rope handling hole drilling,
Hoist engine is set up in proposed Shaft Location center top, steel wire rope of windlass uses steel wire rope, and steel wire rope is from top to bottom passed through and hung
Basket lifts lacing hole, reaches bottom level tunnel position, and hanging basket is fixed on a steel cord, starts hoist engine lifting hanging basket and extremely makees
Industry face, you can carry out first pilot tunnel construction；
Air supply device and supply and discharge water installations, and power supply and lighting device are set in S1-3, first pilot tunnel and horizontal tunnel；
When S1-4, first pilot tunnel construction, first pilot tunnel of constructing from bottom to top, with hoist engine by after lifting of hanging basket hanging basket to work surface, is used
Depth of the vapour leg formula air drill using pre- one row of subdrilling on the rock face of the first pilot tunnel side wall of wet drilling method perpendicular to first pilot tunnel side wall
The bolthole of 1m, bolthole are distributed on first pilot tunnel side wall in sector, when boring next row bolthole, by the good anchor pole of a upper gang drill
Diameter of phi 25mm anchor poles are inserted into hole, the exposed 1m of anchor pole, hanging basket is placed on anchor pole and is fixed, that is, starts to carry out from bottom to top
Next row blast hole drill；
S1-5, after the completion of often arranging blast hole drill, be lowered into horizontal tunnel ground by hanging basket, drilling machine unloaded, and loads explosion and uses
Product, are promoted to anchor pole hole site hanging basket are placed on anchor pole and fix, and carry out powder charge；During powder charge, by detonator lead Unified Set
In be fixed up to first pilot tunnel side wall side, ensure not because hanging basket decentralization influences the detonator and explosive that have installed, after the completion of powder charge,
Hanging basket is unloaded in horizontal tunnel, is transported to by loading machine outside horizontal tunnel, steel wire rope is rolled with hoist engine, avoids explosion pair
The damage of steel wire rope；First pilot tunnel blasting sequence is that each separate explosion waste can be all fallen into the horizontal tunnel of lower part from the bottom to top,
The explosion waste in horizontal tunnel is transported to outside horizontal tunnel using loading machine；During first pilot tunnel construction, set in horizontal tunnel import
An axial flow blower is put, air hose is connected to first pilot tunnel bottom, it is necessary to open axial flow blower when divulging information, does not stop to send into first pilot tunnel
Wind, pernicious gas in first pilot tunnel is discharged from first pilot tunnel to outside top；
S2, shaft section area dig：
S2-1, using total powerstation come out four angle setting-outs of vertical shaft, the arrangement extension control stake on the outside of four angles, control stake arrangement
At criterion distance size 1m, when next explosion circulation starts to bore blast hole, using ceiling hammer utilize top extension control stake into
Row unwrapping wire, after every 3 separate explosion circulation, is checked using total powerstation；
S2-2, with vapour leg formula air drill use wet drilling method, for free face from top to bottom carries out being segmented using first pilot tunnel side wall quick-fried
It is broken, the photoface exploision of perimeter blasting hole；Divide 2-3 sections of explosions according to cross dimensions when shaft section area digs, during topmost drillhole blasting,
The quick-fried first pilot tunnel peripheral part of subdrilling, makes vertical shaft horizontal section be tilted in " step-like " oblique first pilot tunnel, vertical shaft tunneling boring digs
When, divide sequence explosion, first pilot tunnel perimeter blasting hole of first detonating, the rear section periphery hole that detonates, utilizes " step-like " explosion, formed
Part waste is thrown into first pilot tunnel by free face, the photoface exploision of perimeter blasting hole, blasting impact, using manually going out in work surface
Slag, bottom level tunnel is fallen into by waste by first pilot tunnel, then waste is transported to outside hole by loading machine；
When S2-3, first few explosion circulation are slagged tap, manually rock ballast is gone out to first pilot tunnel, wouldn't be transported outside hole, makes first pilot tunnel
Interior rock ballast is accumulated to 3m below work surface, when explosion circulation afterwards is slagged tap, is slagged tap in horizontal tunnel by loading machine, slagged tap every time
Rock ballast ensures top personnel's job safety, while ensure guide apart from work surface height within 3m highly in the first pilot tunnel of guarantee
Hole hole wall homeostasis；
After S2-4, vertical shaft dig deep 3m, top sets safety to go along with sb. to guard him using steel pipe and Dense mesh screen, while carries out anchor to shaft wall
Supporting is sprayed, is carrying out carrying out bolt-spary supports at the same time, shaft wall cat ladder, is used up and down for operation dough figurine person；
S2-5, the above-mentioned S2-1~S2-4 steps of circulation continue shaft section area and dig.
A kind of 2. embedded shaft excavation construction technology according to claim 1, it is characterised in that：The air supply device master
It is divided into construction device with the wind and natural device with the wind, the construction device with the wind includes the pneumatics being arranged in outside horizontal tunnel
Machine, the air-pressure tube used for air compressor is by fresh air conveying to work surface；The nature device with the wind includes being arranged in horizontal tunnel
Axial flow blower outside hole, the axial flow blower is with wind band by fresh air conveying to work surface.
A kind of 3. embedded shaft excavation construction technology according to claim 1, it is characterised in that：The supply and discharge water installations
Including the immersible pump being arranged in horizontal tunnel, the immersible pump extracts river water and is sent by pipeline to work surface position.
A kind of 4. embedded shaft excavation construction technology according to claim 1, it is characterised in that：The power supply and illumination
Device uses the safe voltage of 36V, is laid with insulated cable to working face, sets distribution box, is leaked and arranged using one lock one of a machine.
A kind of 5. embedded shaft excavation construction technology according to claim 1, it is characterised in that：The top of the hanging basket
Square hole net with diameter of phi 10mm reinforcement weldings into 15*20cm, and main stress is made using diameter of phi 25mm reinforcing bars " cross " welding
Muscle.
A kind of 6. embedded shaft excavation construction technology according to claim 1, it is characterised in that：The cat ladder is by institute
Rock-bolt length lengthening is stated, afterbody is prefabricated into U-typed shape, the bolthole bored on the long end insertion shaft wall of the anchor pole, short end
Fixed with reinforced mesh, short end length becomes cat ladder after 20-25cm, spray concrete.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711201707.9A CN107905792A (en) | 2017-11-27 | 2017-11-27 | A kind of embedded shaft excavation construction technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711201707.9A CN107905792A (en) | 2017-11-27 | 2017-11-27 | A kind of embedded shaft excavation construction technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107905792A true CN107905792A (en) | 2018-04-13 |
Family
ID=61848795
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711201707.9A Pending CN107905792A (en) | 2017-11-27 | 2017-11-27 | A kind of embedded shaft excavation construction technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107905792A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112627827A (en) * | 2020-12-16 | 2021-04-09 | 中国电建集团华东勘测设计研究院有限公司 | Control device for excavating and deslagging of vertical shaft at upper part of existing tunnel |
| CN115059486A (en) * | 2022-06-29 | 2022-09-16 | 广东水电二局股份有限公司 | Rapid well completion method for rock vertical well |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202300407U (en) * | 2011-09-09 | 2012-07-04 | 中国水利水电第十工程局有限公司 | Lifting platform for construction operation over shaft wall of vertical shaft |
| CN103184872A (en) * | 2013-03-20 | 2013-07-03 | 中国水利水电第十四工程局有限公司 | Construction method of one-time excavation for large-section vertical well |
| CN103422862A (en) * | 2013-07-26 | 2013-12-04 | 王绍华 | Ultra-large hole-diameter drilling shaft drilling method |
| CN104196442A (en) * | 2014-04-11 | 2014-12-10 | 中国水利水电第十一工程局有限公司 | Method for carrying out construction in vertical shaft or inclined shaft through raise boring machine |
| CN204402496U (en) * | 2015-01-16 | 2015-06-17 | 郑州煤炭工业（集团）工程有限公司 | A kind of vertical shaft steel strand jack hangs slip-form lifting device |
| CN104806249A (en) * | 2015-04-03 | 2015-07-29 | 核工业井巷建设公司 | Guiding and tunneling construction method of short silo |
| CN105298499A (en) * | 2015-11-12 | 2016-02-03 | 中国水利水电第七工程局有限公司 | Excavation deviation processing method of raise-boring machine for deep vertical shaft |
-
2017
- 2017-11-27 CN CN201711201707.9A patent/CN107905792A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202300407U (en) * | 2011-09-09 | 2012-07-04 | 中国水利水电第十工程局有限公司 | Lifting platform for construction operation over shaft wall of vertical shaft |
| CN103184872A (en) * | 2013-03-20 | 2013-07-03 | 中国水利水电第十四工程局有限公司 | Construction method of one-time excavation for large-section vertical well |
| CN103422862A (en) * | 2013-07-26 | 2013-12-04 | 王绍华 | Ultra-large hole-diameter drilling shaft drilling method |
| CN104196442A (en) * | 2014-04-11 | 2014-12-10 | 中国水利水电第十一工程局有限公司 | Method for carrying out construction in vertical shaft or inclined shaft through raise boring machine |
| CN204402496U (en) * | 2015-01-16 | 2015-06-17 | 郑州煤炭工业（集团）工程有限公司 | A kind of vertical shaft steel strand jack hangs slip-form lifting device |
| CN104806249A (en) * | 2015-04-03 | 2015-07-29 | 核工业井巷建设公司 | Guiding and tunneling construction method of short silo |
| CN105298499A (en) * | 2015-11-12 | 2016-02-03 | 中国水利水电第七工程局有限公司 | Excavation deviation processing method of raise-boring machine for deep vertical shaft |
Non-Patent Citations (2)
| Title |
|---|
| 吕兴波等: "庙宫水库竖井爆破开挖与安全支护", 《价值工程》 * |
| 常民生等: "超深竖井快速掘进施工新方法", 《长江科学院院报》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112627827A (en) * | 2020-12-16 | 2021-04-09 | 中国电建集团华东勘测设计研究院有限公司 | Control device for excavating and deslagging of vertical shaft at upper part of existing tunnel |
| CN112627827B (en) * | 2020-12-16 | 2023-10-13 | 中国电建集团华东勘测设计研究院有限公司 | Control device for excavating and deslagging of vertical shaft at upper part of existing tunnel |
| CN115059486A (en) * | 2022-06-29 | 2022-09-16 | 广东水电二局股份有限公司 | Rapid well completion method for rock vertical well |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108286920B (en) | Implementation method for tunnel blasting and excavation | |
| CN103629980B (en) | Near existing line steep massif Loose Control Blasting construction method | |
| CN112593853B (en) | Construction method for coal mine waste filling and water-reducing mining | |
| CN103835661B (en) | A kind of local excavation pre support mine shaft rising boring technique | |
| CN112502777B (en) | Method for treating tunnel inrush roof collapse and door closing | |
| CN104532818A (en) | Treatment method for strip mine goaf | |
| CN108661643A (en) | It a kind of coal working face end adopts return channel and cuts top release shield lane method | |
| CN102305075A (en) | Vertical shaft construction method under unfavorable geological condition | |
| CN111594174A (en) | Full-section one-time pore-forming segmented blasting vertical shaft excavation method | |
| CN106677786B (en) | A kind of ultra-deep big cross section vertical shaft shaft formatting by one blasting method based on electric detonator | |
| CN103835723A (en) | Comprehensive pretreatment method for shaft penetration in mined-out area stratum | |
| CN109000525A (en) | A kind of shield driving upper-soft lower-hard ground presplit blasting construction method | |
| CN105401946A (en) | Reverse blasting excavation method of shaft and pilot shaft | |
| CN105569693A (en) | Underground stable rock stratum large-scale chamber construction method applied to medium-length hole blasting | |
| CN112031738A (en) | Construction method of vertical shaft slag sliding well raise boring machine with diameter of 4-6 m | |
| CN106968675A (en) | Construction method of gas tunnel goaf | |
| CN111780633B (en) | Step-type rapid excavation method for IV-V-level surrounding rock lower step of double-track tunnel | |
| CN102031782A (en) | Layered inclined hole blast construction method for multilayer complex quicksand foundation | |
| CN107130964A (en) | Small-sized tunnel mud stone excavation construction method | |
| CN102235010B (en) | Treatment method for hanging sinking stop due to expansive soil in well sinking | |
| CN107905792A (en) | A kind of embedded shaft excavation construction technology | |
| CN103147435A (en) | Method for treating construction engineering foundation in gob | |
| CN110030001B (en) | Construction method for mountain tunnel to go out of hole | |
| CN101915122B (en) | Construction method of underground large water-flow mine emergency water sump | |
| CN113107487B (en) | Horizontal long drilling and along-mining along-filling ecological coal mining method and system for coal seam roof sleeve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180413 |
|
| RJ01 | Rejection of invention patent application after publication |