CN104806249A - Guiding and tunneling construction method of short silo - Google Patents
Guiding and tunneling construction method of short silo Download PDFInfo
- Publication number
- CN104806249A CN104806249A CN201510156732.4A CN201510156732A CN104806249A CN 104806249 A CN104806249 A CN 104806249A CN 201510156732 A CN201510156732 A CN 201510156732A CN 104806249 A CN104806249 A CN 104806249A
- Authority
- CN
- China
- Prior art keywords
- hole
- construction method
- gun hole
- big gun
- tunneling construction
- 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.)
- Granted
Links
- 238000010276 construction Methods 0.000 title claims abstract description 24
- 230000005641 tunneling Effects 0.000 title claims abstract description 14
- 238000005553 drilling Methods 0.000 claims abstract description 20
- 238000004880 explosion Methods 0.000 claims abstract description 15
- 238000005422 blasting Methods 0.000 claims abstract description 10
- 239000000843 powder Substances 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 11
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 9
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 9
- 241001330002 Bambuseae Species 0.000 claims description 9
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 9
- 239000011425 bamboo Substances 0.000 claims description 9
- 238000009412 basement excavation Methods 0.000 claims description 7
- 239000004576 sand Substances 0.000 claims description 6
- 239000011435 rock Substances 0.000 claims description 5
- 239000002360 explosive Substances 0.000 claims description 4
- 239000002390 adhesive tape Substances 0.000 claims description 3
- 239000002689 soil Substances 0.000 claims description 3
- 240000007594 Oryza sativa Species 0.000 claims description 2
- 235000007164 Oryza sativa Nutrition 0.000 claims description 2
- 230000035515 penetration Effects 0.000 claims description 2
- 239000011148 porous material Substances 0.000 claims description 2
- 235000009566 rice Nutrition 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 description 2
- 239000003517 fume Substances 0.000 description 2
- 239000010437 gem Substances 0.000 description 2
- 229910001751 gemstone Inorganic materials 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000009172 bursting Effects 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000000275 quality assurance Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42D—BLASTING
- F42D1/00—Blasting methods or apparatus, e.g. loading or tamping
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42D—BLASTING
- F42D1/00—Blasting methods or apparatus, e.g. loading or tamping
- F42D1/08—Tamping methods; Methods for loading boreholes with explosives; Apparatus therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42D—BLASTING
- F42D3/00—Particular applications of blasting techniques
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Earth Drilling (AREA)
Abstract
The invention relates to an excavating technology of a short silo, in particular to a guiding and tunneling construction method of a short silo. The guiding and tunneling construction method of the short silo comprises the steps: (1) drilling and blasting a guide courtyard; (2) measuring and setting out, precisely measuring a central point of the short silo by a total station, marking, and measuring the excavating scope and drilling position of the short silo; (3) drilling, drilling a blast hole and a central hole by an impactor and a drill bit, wherein the central hole is a hollow hole formed in the middle of the short silo, a plurality of cutting holes are circularly and uniformly formed in a place which is 30-40cm far away from the central hole, a plurality of blast holes are circularly and uniformly formed in a place which is 80-120cm far away from the central hole, and the spaces between the auxiliary blast holes and the cutting holes are between 0.5m and 0.65m; the cutting holes and the auxiliary blast holes are blast holes; (4) charging for explosion. The guiding and tunneling construction method of the short silo is safer to operate and low in labor intensity.
Description
Technical field
The present invention relates to vertical shaft digging technology, particularly one short vertical shaft pilot shaft tunneling construction method.
Background technology
Building in Hydraulic and Hydro-Power Engineering, generally building gate shaft at diversion tunnel water inlet, delivery port builds surge shaft, gate shaft, surge shaft can be referred to as vertical shaft, and shaft sinking Blasting Excavation is a technology, the safe difficult point of the construction of hydraulic tunnel open excavation; In traditional construction technology, generally drill through an emptying aperture in the middle of adopting to install cage method artificial jewel hole, powder charge blasting in groups excavation from the bottom up, or the mode adopting artificial jewel hole from top to bottom, blasting in groups, hoist engine to promote artificial muck removal is constructed, these methods construction labour intensity is large, progress slow, operating personnel is difficult to safely ensure, particularly when vertical shaft Rock Mass cranny development, safety problem is more outstanding.
Summary of the invention
The object of this invention is to provide a kind of short vertical shaft pilot shaft tunneling construction method, its construction is safer, and labour intensity is low.
Above-mentioned technical purpose of the present invention is achieved by the following technical programs: a kind of short vertical shaft pilot shaft tunneling construction method, comprises
(1) courtyard that leads bores quick-fried;
(2) surveying and locating, uses total powerstation accurately to measure the central point of vertical shaft, and carries out mark, measures pilot shaft excavation scope bore position simultaneously;
(3) hole, impactor and drill bit is used to creep into big gun hole and mesopore, described mesopore is 1 emptying aperture being arranged at middle part, round shape is become to be evenly arranged some easers apart from mesopore 30-40cm distance, distance apart from mesopore 80-120cm becomes round shape to be evenly arranged several auxiliary gun holes, and the spacing of auxiliary gun hole and easer is between 0.5m to 0.65m; Described easer and Dou Weibao hole, auxiliary gun hole;
(4) charge explosion, comprising:
A, plug-hole, transfer to rectangular sand hill bottom big gun hole behind 8-12cm position from well head top, big gun hole by each big gun hole gaging hole degree of depth, then abandon appropriate stemming from top and puddling is real in each big gun hole of shutoff; Top, big gun hole thin sand and soil shutoff after powder charge;
B, powder charge, make bamboo plate according to each hole loaded length, is fixed on bamboo plate, adds explosive binding adhesive tape and pinion bamboo plate and slowly put down to carry out blast hole projectile filling from top along hole wall, and connect detonating fuse with rope between powder stick;
C, explosion, adopt high energy detonator detonates, to complete and on-the-spot and periphery all personnel evacuates to beyond blast warning safe distance, detonate after confirming safety at powder charge line.
As preferably of the present invention, described median pore diameter elects φ 120mm as, blasthole diameter elects φ 90mm as, and described easer is four, and described auxiliary gun hole is six.
As preferably of the present invention, adopt two total powerstation an angle of 90 degrees mutually vertically to control the verticality of drilling rod during boring, the front 1.2-1.8m that often creeps into adjusts once, after creeping into two drilling rods, often tunnels 2.5-3.5 rice and measures adjustment once; Penetration rate is 4.5-5.5min/m, and adds fairlead, to ensure vertical precision of holing.
As preferably of the present invention, after powder charge, big gun hole top shutoff length is 1.2-1.8m.
As preferably of the present invention, described guiding courtyard bores quick-fried being specially, and excavates after bottom vertical shaft well seat, adopt the artificial conventional drilling and blasting method of manual rock drilling machine first to excavate the guiding courtyard of 2 meters of length at adit.
In sum, the present invention has following beneficial effect: present invention process is simple, easy to implement, has than conventional drilling and blasting method the advantage that safety is high, construction cost is low, progress is fast, quality assurance ability is strong; The fixed rig of major diameter, configuration 3 operating personnel such as an employing hidden hole drilling once can complete drilling construction on earth's surface, do mechanization operation reduces labor operation intensity, and operating personnel's personal safety significantly improves; Bore quick-fried operation to operate outward at well, eliminate work high above the ground, without the need to considering that blasting fume impact and roof fall wall caving threaten, construction safety, operating condition are good; Pilot shaft cross dimensions can require select arbitrarily adjustment with excavation according to shaft section area size, shape, in conjunction with vertical shaft wall rock geology exploration data, can conservative control adjust secondary and dig area, thus reduce explosive specific charge and construction cost; Secondary digs the shaping control being more conducive to the shaping bursting quality of vertical shaft; Plant equipment uses less, and boring aperture is large, precision is high, and speed is fast, layering explosion from the bottom up, and general every secondary clearing explosion drilling depth is at 2.0 meters to 3.0 meters, and daily footage can reach more than 5 meters, and construction speed is fast, and the duration shortens greatly.
Detailed description of the invention
This specific embodiment is only explanation of the invention; it is not limitation of the present invention; those skilled in the art can make to the present embodiment the amendment not having creative contribution as required after reading this manual, as long as but be all subject to the protection of Patent Law in right of the present invention.
Embodiment: a kind of short vertical shaft pilot shaft tunneling construction method, comprises,
(1) courtyard that leads bores quick-fried, for ensureing that VCR method bores quick-fried effect, ensure shaft section area Forming Quality, first excavate after bottom vertical shaft well seat at adit, adopt manual rock drilling machine (as YT28 type) artificial conventional drilling and blasting method first to excavate the guiding courtyard of 2 meters of high left and right.
(2) surveying and locating, uses total powerstation accurately to measure the central point of vertical shaft, and carries out mark, measures pilot shaft excavation scope bore position simultaneously.
(3) hole, CL-120Y height blast outdoor Down-hole rolling rig φ 90mm impactor and drill bit is used to creep into mesopore and big gun hole, two total powerstation an angle of 90 degrees are adopted mutually vertically to control the verticality of drilling rod, before often creep into about 1.5m and adjust once, after creeping into two drilling rods, often tunnel 3 meters and measure adjustment once; Keyhole speed is at about 5min/m, and add fairlead, to ensure vertical precision of holing, described mesopore is 1 emptying aperture being arranged at middle part, round shape is become to be evenly arranged some easers apart from mesopore 35cm distance, distance apart from mesopore 100cm becomes round shape to be evenly arranged several auxiliary gun holes, and the spacing of auxiliary gun hole and easer is between 0.5m to 0.65m; Described easer and Dou Weibao hole, auxiliary gun hole.
(4) charge explosion, comprises
A, gaging hole, for layering explosion design provides hole depth, the shape of bottom compensation space height and top board line, lining rope lower part series is adopted to hang 0.5 meter of long Metallic rod, a mooring points is respectively established in the middle part of bar and one end, to the lining rope of Metallic rod be fastened after big gun hole is put into bottom, even up Metallic rod again and slowly up mention top board after gate shaft explosion, measure lining rope record reading, measure each big gun hole hole depth and roof condition, break tether after survey and propose Metallic rod, the quick-fried rear parameter continuing next big gun hole measures, so measure the hole depth in all big gun holes and grasp roof condition, the loaded length in each hole is adjusted according to top board distribution shape, substantially smooth to adjust quick-fried rear top board,
B, plug-hole, the rectangular sand hill of a diameter phi 115mm, length 40cm is tied at gate shaft wellhead platform rope, transfer to bottom big gun hole behind about 10cm position from well head top, big gun hole by each big gun hole gaging hole degree of depth, then abandon appropriate stemming from top and the method for puddling reality to carry out lower stifled big gun hole; Top, big gun hole thin sand and soil shutoff after powder charge, length is 1.5m;
C, powder charge, for controlling powder charge and meet charge constitution requirement well, make bamboo plate according to each hole loaded length, is fixed on bamboo plate by explosive binding, adds adhesive tape pinion the method that bamboo plate slowly puts down along hole wall from top and carry out blast hole projectile filling with rope; For very ensureing propagation of explosion between powder stick, between powder stick, add a detonating fuse connecting line;
D, explosion, adopt high energy detonator detonates, to complete and on-the-spot and periphery all personnel evacuates to beyond 200m blast warning safe distance, detonate after confirming safety at powder charge line;
Check after e, explosion, after explosion, first determined whether blind big gun, through confirming that safety is checked without entering scene after hidden danger, waiting after blasting fume drains in hole, entering in hole and check demolition effect, then measure hole depth, checked whether plug-hole phenomenon; If have, adopt down-the-hole drill hole flushing process, otherwise enter next charge explosion circulation construction.
Claims (5)
1. a short vertical shaft pilot shaft tunneling construction method, is characterized in that, comprise
(1) courtyard that leads bores quick-fried;
(2) surveying and locating, uses total powerstation accurately to measure the central point of vertical shaft, and carries out mark, measures pilot shaft excavation scope bore position simultaneously;
(3) hole, impactor and drill bit is used to creep into big gun hole and mesopore, described mesopore is 1 emptying aperture being arranged at middle part, round shape is become to be evenly arranged some easers apart from mesopore 30-40cm distance, distance apart from mesopore 80-120cm becomes round shape to be evenly arranged several auxiliary gun holes, and the spacing of auxiliary gun hole and easer is between 0.5m to 0.65m; Described easer and Dou Weibao hole, auxiliary gun hole;
(4) charge explosion, comprising:
A, plug-hole, transfer to rectangular sand hill bottom big gun hole behind 8-12cm position from well head top, big gun hole by each big gun hole gaging hole degree of depth, then abandon appropriate stemming from top and puddling is real in each big gun hole of shutoff; Top, big gun hole thin sand and soil shutoff after powder charge;
B, powder charge, make bamboo plate according to each hole loaded length, is fixed on bamboo plate, adds explosive binding adhesive tape and pinion bamboo plate and slowly put down to carry out blast hole projectile filling from top along hole wall, and connect detonating fuse with rope between powder stick;
C, explosion, adopt high energy detonator detonates, to complete and on-the-spot and periphery all personnel evacuates to beyond blast warning safe distance, detonate after confirming safety at powder charge line.
2. one according to claim 1 short vertical shaft pilot shaft tunneling construction method, is characterized in that, described median pore diameter elects φ 120mm as, blasthole diameter elects φ 90mm as, and described easer is four, and described auxiliary gun hole is six.
3. one according to claim 1 short vertical shaft pilot shaft tunneling construction method, it is characterized in that, two total powerstation an angle of 90 degrees are adopted mutually vertically to control the verticality of drilling rod during boring, before often creep into 1.2-1.8m adjust once, after creeping into two drilling rods, often tunnel 2.5-3.5 rice and measure adjustment once; Penetration rate is 4.5-5.5min/m, and adds fairlead, to ensure vertical precision of holing.
4. one according to claim 1 short vertical shaft pilot shaft tunneling construction method, is characterized in that, after powder charge, big gun hole top shutoff length is 1.2-1.8m.
5. one according to claim 1 short vertical shaft pilot shaft tunneling construction method, it is characterized in that, described guiding courtyard bores quick-fried being specially, and excavates after bottom vertical shaft well seat, adopt the artificial conventional drilling and blasting method of manual rock drilling machine first to excavate the guiding courtyard of 2 meters of length at adit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510156732.4A CN104806249B (en) | 2015-04-03 | 2015-04-03 | A kind of short vertical shaft pilot shaft tunneling construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510156732.4A CN104806249B (en) | 2015-04-03 | 2015-04-03 | A kind of short vertical shaft pilot shaft tunneling construction method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104806249A true CN104806249A (en) | 2015-07-29 |
| CN104806249B CN104806249B (en) | 2016-05-04 |
Family
ID=53691401
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510156732.4A Active CN104806249B (en) | 2015-04-03 | 2015-04-03 | A kind of short vertical shaft pilot shaft tunneling construction method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104806249B (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105401946A (en) * | 2015-10-27 | 2016-03-16 | 中国水利水电第三工程局有限公司 | Reverse blasting excavation method of shaft and pilot shaft |
| CN106403740A (en) * | 2016-11-25 | 2017-02-15 | 葛洲坝易普力四川爆破工程有限公司 | Method for accurately controlling direction of obliquely downward smooth blasting hole in excavating of structural surface |
| CN107091094A (en) * | 2017-06-20 | 2017-08-25 | 中国水利水电第五工程局有限公司 | Short inclined shaft pilot shaft excavation method in one kind |
| CN107905792A (en) * | 2017-11-27 | 2018-04-13 | 新疆北方建设集团有限公司 | A kind of embedded shaft excavation construction technology |
| CN108374661A (en) * | 2018-02-06 | 2018-08-07 | 浙江省隧道工程公司 | A kind of middle pilot shaft shaft formatting by one blasting method |
| CN109539915A (en) * | 2018-12-27 | 2019-03-29 | 攀钢集团工程技术有限公司 | Slot raise blasting construction method |
| CN111649634A (en) * | 2020-07-03 | 2020-09-11 | 中国水利水电第四工程局有限公司 | A short shaft expansion blasting construction method |
| CN111894596A (en) * | 2020-07-27 | 2020-11-06 | 广西路桥工程集团有限公司 | Vertical shaft raise construction method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4701073A (en) * | 1984-12-05 | 1987-10-20 | Sainsbury Garrett Michael | Shaft sinking method |
| CN101487376A (en) * | 2009-02-14 | 2009-07-22 | 中国葛洲坝集团股份有限公司 | One-time excavation construction method for large-diameter large-depth pressure regulating well pilot shaft |
| CN102305075A (en) * | 2011-06-28 | 2012-01-04 | 中国水利水电第五工程局有限公司 | Vertical shaft construction method under unfavorable geological condition |
| CN102401616A (en) * | 2011-10-11 | 2012-04-04 | 中国矿业大学(北京) | Vertical shaft blasting tunneling method |
| CN102635359A (en) * | 2012-04-13 | 2012-08-15 | 中铁十七局集团第三工程有限公司 | Energy-saving rapid construction method for ventilating shafts of tunnels |
| 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 |
-
2015
- 2015-04-03 CN CN201510156732.4A patent/CN104806249B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4701073A (en) * | 1984-12-05 | 1987-10-20 | Sainsbury Garrett Michael | Shaft sinking method |
| CN101487376A (en) * | 2009-02-14 | 2009-07-22 | 中国葛洲坝集团股份有限公司 | One-time excavation construction method for large-diameter large-depth pressure regulating well pilot shaft |
| CN102305075A (en) * | 2011-06-28 | 2012-01-04 | 中国水利水电第五工程局有限公司 | Vertical shaft construction method under unfavorable geological condition |
| CN102401616A (en) * | 2011-10-11 | 2012-04-04 | 中国矿业大学(北京) | Vertical shaft blasting tunneling method |
| CN102635359A (en) * | 2012-04-13 | 2012-08-15 | 中铁十七局集团第三工程有限公司 | Energy-saving rapid construction method for ventilating shafts of tunnels |
| 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 |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105401946A (en) * | 2015-10-27 | 2016-03-16 | 中国水利水电第三工程局有限公司 | Reverse blasting excavation method of shaft and pilot shaft |
| CN106403740A (en) * | 2016-11-25 | 2017-02-15 | 葛洲坝易普力四川爆破工程有限公司 | Method for accurately controlling direction of obliquely downward smooth blasting hole in excavating of structural surface |
| CN107091094A (en) * | 2017-06-20 | 2017-08-25 | 中国水利水电第五工程局有限公司 | Short inclined shaft pilot shaft excavation method in one kind |
| CN107905792A (en) * | 2017-11-27 | 2018-04-13 | 新疆北方建设集团有限公司 | A kind of embedded shaft excavation construction technology |
| CN108374661A (en) * | 2018-02-06 | 2018-08-07 | 浙江省隧道工程公司 | A kind of middle pilot shaft shaft formatting by one blasting method |
| CN109539915A (en) * | 2018-12-27 | 2019-03-29 | 攀钢集团工程技术有限公司 | Slot raise blasting construction method |
| CN111649634A (en) * | 2020-07-03 | 2020-09-11 | 中国水利水电第四工程局有限公司 | A short shaft expansion blasting construction method |
| CN111894596A (en) * | 2020-07-27 | 2020-11-06 | 广西路桥工程集团有限公司 | Vertical shaft raise construction method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104806249B (en) | 2016-05-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104806249B (en) | A kind of short vertical shaft pilot shaft tunneling construction method | |
| CN108286920B (en) | Implementation method for tunnel blasting and excavation | |
| CN106524844B (en) | Boulder reconnoitres the construction method with explosion treatment along a kind of shield tunnel | |
| CN103629980B (en) | Near existing line steep massif Loose Control Blasting construction method | |
| CN104790978B (en) | The tunnel ring-shaped base tunnel construction method of small interval crossings on different level | |
| CN102493822A (en) | Method for performing curtain grouting construction on tunnel by water rich fault influence zone | |
| CN109026039A (en) | Subway tunnel shield tunnels boulder deep hole blasting and pre-processes construction method | |
| CN112179227A (en) | Coal face ultra-deep hole blasting roof cutting pressure relief control method and blasting charge structure | |
| CN101806066B (en) | Method for molding vertical wall of deep foundation pit | |
| CN106677786B (en) | A kind of ultra-deep big cross section vertical shaft shaft formatting by one blasting method based on electric detonator | |
| CN104748632A (en) | Underwater rock plug blasting construction method | |
| CN104532818A (en) | Treatment method for strip mine goaf | |
| CN109252868A (en) | Hard-soft heterogeneous ground shield-tunneling construction boulder and basement rock protrusion processing method | |
| CN105401946A (en) | Reverse blasting excavation method of shaft and pilot shaft | |
| CN104913696A (en) | Side slope excavation smooth-surface blasting-method construction method | |
| CN101793486A (en) | High-grade highway rock cutting blasting construction process | |
| CN109000525A (en) | A kind of shield driving upper-soft lower-hard ground presplit blasting construction method | |
| CN113404498B (en) | VCR mining method | |
| CN112922606A (en) | Full-section smooth blasting construction method suitable for all-computer three-arm rock drilling jumbo for III-grade and IV-grade surrounding rock large-section railway tunnels | |
| CN110206547B (en) | Method suitable for shaft tunneling and supporting in deep stratum and high-stress area | |
| CN106638693A (en) | Dismantling construction method of immersed tunnel steel-pipe pile concrete wall by drilling and blasting | |
| CN107762399A (en) | Explosion coordinates rotary drilling rig deep layer one-step pore-creating construction method | |
| CN112031738A (en) | Construction method of vertical shaft slag sliding well raise boring machine with diameter of 4-6 m | |
| CN102031782A (en) | Layered inclined hole blast construction method for multilayer complex quicksand foundation | |
| CN106285731A (en) | The little courtyard radiant type of a kind of high Large chamber and the mixed construction method of step |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 313000 No. 666 Huanzhu Road, Wuxing District, Huzhou City, Zhejiang Province Patentee after: NUCLEAR INDUSTRY WELL AND ROADWAY CONSTRUCTION GROUP Co.,Ltd. Address before: 313000 No. 666 Huanzhu Road, Wuxing District, Huzhou City, Zhejiang Province Patentee before: NUCLEAR SHAFT AND ROADWAY ENGINEERING Group Corp. Address after: 313000 No. 666 Huanzhu Road, Wuxing District, Huzhou City, Zhejiang Province Patentee after: NUCLEAR SHAFT AND ROADWAY ENGINEERING Group Corp. Address before: 313000 No. 666 Huanzhu Road, Wuxing District, Huzhou City, Zhejiang Province Patentee before: NUCLEAR IND WELL & TUNNEL CONSTRUCTION Co. |
|
| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: No. 581, Fenghuang Road, Huzhou City, Zhejiang Province, 313000 Patentee after: NUCLEAR INDUSTRY WELL AND ROADWAY CONSTRUCTION GROUP Co.,Ltd. Address before: 313000 No. 666 Huanzhu Road, Wuxing District, Huzhou City, Zhejiang Province Patentee before: NUCLEAR INDUSTRY WELL AND ROADWAY CONSTRUCTION GROUP Co.,Ltd. |