CN105236275A - Soil lifting system and method for construction of deep foundation pit in narrow area building - Google Patents
Soil lifting system and method for construction of deep foundation pit in narrow area building Download PDFInfo
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- CN105236275A CN105236275A CN201510676300.6A CN201510676300A CN105236275A CN 105236275 A CN105236275 A CN 105236275A CN 201510676300 A CN201510676300 A CN 201510676300A CN 105236275 A CN105236275 A CN 105236275A
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- 238000010276 construction Methods 0.000 title claims abstract description 88
- 239000002689 soil Substances 0.000 title claims abstract description 34
- 238000000034 method Methods 0.000 title claims abstract description 13
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 50
- 239000010959 steel Substances 0.000 claims abstract description 50
- 239000004567 concrete Substances 0.000 claims abstract description 37
- 238000009434 installation Methods 0.000 claims abstract description 20
- 238000009412 basement excavation Methods 0.000 claims description 26
- 239000000725 suspension Substances 0.000 claims description 25
- 230000003014 reinforcing effect Effects 0.000 claims description 9
- 238000007689 inspection Methods 0.000 claims description 8
- 238000005266 casting Methods 0.000 claims description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 6
- 238000012423 maintenance Methods 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims description 3
- 238000009415 formwork Methods 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 3
- 238000005259 measurement Methods 0.000 claims description 2
- 239000002985 plastic film Substances 0.000 claims description 2
- 229920006255 plastic film Polymers 0.000 claims description 2
- 230000000384 rearing effect Effects 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 5
- 238000007789 sealing Methods 0.000 abstract 7
- 239000011150 reinforced concrete Substances 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
- 230000032258 transport Effects 0.000 description 13
- 230000004888 barrier function Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 101100272852 Clostridium botulinum (strain Langeland / NCTC 10281 / Type F) F gene Proteins 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000009049 secondary transport Effects 0.000 description 1
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Abstract
A soil lifting system and a soil lifting method for construction of deep foundation pits in narrow areas are disclosed, wherein a large face sealing plate is arranged on a first concrete support around a hole opening of the system, and the large face sealing plate is used as a first sealing plate for arranging soil lifting equipment and a soil piling platform; the vertical soil lifting equipment adopts a steel derrick soil lifting crane, and comprises a steel derrick erected on the opening of the hole and an electric hoist hung on the steel derrick; the soil piling platform is arranged on a first sealing plate around the opening and is an area enclosed by the retaining wall and the water retaining ridge. Carrying out large-face sealing on the first concrete support around the hole to serve as a first sealing plate, providing a transport channel for a transport vehicle, providing a material storage yard for the construction of a subsequent main body structure, and providing a site for the installation of a soil piling platform and a steel derrick; a soil piling area is arranged on the first sealing plate, and earthwork which cannot be transported outside in time is temporarily piled; the steel derrick earth lifting device is not limited by an on-site reinforced concrete ramp, increases an earth-out path, greatly shortens the construction period in advance, and is particularly suitable for construction of a deep foundation pit with a narrow site.
Description
Technical field
The present invention relates to earth excavation technical field of construction, the carrying soil series system and carry indigenous method of a kind of narrow zone deep foundation pit of construction construction of particularly applying in the narrow annulus building operation of construction space.
Background technology
At present, in the annulus deep foundation pit of construction engineering construction that construction space is narrow, two difficult problems are usually faced, on the one hand, due to narrow field, inner support area is large, between support, clear distance is little, supports bottom earth excavation difficulty, can not utilize in a conventional manner to put slope and complete earth excavation; On the other hand, owing to lacking material stockyard, earth moving vehicles need travel and transport the earthwork to foundation ditch, morning evening peak traffic and the rainy day can not transport outward, construction speed is obstructed, and greatly extends construction period, and the normal construction of critical circuits can not ensure.
Summary of the invention
The object of the invention is that the soil series of carrying providing a kind of narrow zone deep foundation pit of construction to construct is united and carries indigenous method, to solve in prior art in narrow zone construction due to narrow field, inner support area is large, between support, clear distance is little, support bottom earth excavation difficulty, unearthed path is few, can not utilize in a conventional manner and put the technical barrier that slope completes earth excavation, and owing to lacking material stockyard, earth moving vehicles need travel and transport the earthwork to foundation ditch, morning evening peak traffic and the rainy day can not transport outward in construction speed be obstructed, greatly extend the technical barrier of construction period.
For realizing above-mentioned technical purpose, the present invention takes following technical scheme:
The construction of a kind of narrow zone deep foundation pit of construction carry soil series system, comprise foundation pit support system, vertically carry indigenous equipment and mound platform, described foundation pit support system comprises foundation pit enclosure stake, foundation ditch stand column pile and concrete support, it is characterized in that:
Described concrete support comprises some roads from top to bottom, and the first road concrete support around hole carries out large face shrouding, as arranging the first road shrouding carrying indigenous equipment and mound platform;
Described indigenous equipment of vertically carrying adopts steel headframe to carry native loop wheel machine, comprises and is erected at steel headframe on hole and the electric block of hanging on steel headframe;
Described steel headframe comprises the column of rectangle frame and the beneath support rectangle frame enclosed by crossbeam, described column symmetry is fixed on around hole, the centre of described rectangle frame is provided with for hanging electric block and as the track girder of its moving track, the suspension hook of electric block connects suspension bucket;
Described mound platform is located on the first road shrouding around hole, is the region that retaining wall and water-blocking bank surround.
As the preferred technical solution of the present invention, the column of described steel headframe is shaped steel column, and described crossbeam comprises girder and secondary beam, and described girder comprises strength beam vertical with track girder in the middle of Vierendeel girder and framework, described secondary beam between strength beam and Vierendeel girder, also perpendicular to track girder.
Preferably, described first road shrouding is armoured concrete slab, and its thickness range is 200 ~ 350mm, and the support beam at described armoured concrete slab and foundation ditch stand column pile top is integrated moulding by casting, and the mutual colligation of reinforcing bar between the two connects.
Preferably, described mound platform is away from muck haulage car transport channel and retaining wall is established on the both sides in a bight at close hole, and remaining sides is along all establishing water-blocking bank, and the cross-sectional plane of described water-blocking bank is protruding semicircular arc, and its maximum height is 5 ~ 20cm.
Preferably, in mound platform outer, reinforcing knoll is set along retaining wall interval.
Preferably, near the upper edge of the retaining wall of side, hole, the position of respective carter beam has the suspension bucket preformed hole entering mound platform for suspension bucket.
Preferably, described steel headframe is also provided with inspection platform.
The invention still further relates to a kind of utilize above-mentioned a kind of narrow zone deep foundation pit of construction construction carry that soil series system carries out carry indigenous method, it is characterized in that, comprise the steps:
Step one, determine the position at hole: the design paper of combining main body structure, foundation ditch stand column pile is avoided the engineering pile of agent structure, pillar and well, determine number and the position at hole;
Step 2, the thickness of slab determining first road shrouding and laying area: the specification of foundation transportation device and windrow require thickness of slab and the laying area of determining first road shrouding, first road shrouding is located on the first road concrete support around hole, as arranging the first road shrouding carrying indigenous equipment and mound platform;
Step 3, earth excavation are to absolute altitude at the bottom of first road inner support: after foundation ditch periphery fender post and hole inner column pile driving construction, absolute altitude at the bottom of earth excavation to first road inner support is carried out in large face;
The integrated construction of step 4, first road inner support and first road shrouding: comprise formwork erection, reinforcing bar binding and concreting, and carry out maintenance;
Step 5, installation vertically carry indigenous equipment: the concrete strength of Dai Shou road inner support and first road shrouding reaches after 75%, first road shrouding is installed around hole steel headframe and carries native loop wheel machine, comprise the installation of steel headframe and electric block;
The construction of step 6, mound platform: the construction first road shrouding around hole carrying out retaining wall and water-blocking bank, forms mound platform;
Step 7, utilize completed indigenous equipment of carrying to carry out carrying soil: to start electric block, make, bottom suspension bucket vertical landing to hole, to rise after filling the earthwork, enter mound platform and carry out discharging, repeat until be excavated to absolute altitude at the bottom of second inner support;
Step 8, while earth excavation, repeat step 7 and carry out proposing soil construction, until be excavated to absolute altitude at the bottom of foundation ditch.
Wherein, in described step 7, if earth excavation is night work, then suspension bucket is utilized the earthwork directly to be had bad luck on muck haulage car; If operation on daytime, does not allow earthwork transportation, then the earthwork of being had bad luck up by suspension bucket, stacks in the mound platform within the scope of first floor retaining wall.
Preferably, the concrete grammar of the integrated construction of described step 4 Zhong Shou road inner support and first road shrouding is:
Step 1, according to result of a measurement, carry out earth excavation to absolute altitude at the bottom of first road inner support;
Step 2, first road inner support and the support of shrouding position, first road are set up with template system;
The reinforcing bar of step 3, the first road inner support of colligation and first road shrouding;
Step 4, carry out the concreting of first road inner support and first road shrouding;
Step 5, treat concreting after, with covered rearing with plastic film in 12 hours, moisture-keeping maintaining.
Preferred further, in described step 5, the concrete installation steps of steel headframe are as follows:
In step 1, first road inner support casting process, steel headframe column embedded part is imbedded in first road inner support beam;
After step 2, Dai Shou road inner support beam concrete strength reach designing requirement, according to order, steel headframe column, crossbeam and track girder are installed; Column and embedded part adopt and are welded to connect, column, with bolts between crossbeam and track girder.
Step 3, installation bridging and diagonal brace, ensure the safety of the stable of whole support body and unit member stress;
Step 4, installation and repairing platform, in order to ensure the normal operation of electric block, need arrange inspection platform on portal frame;
Step 5, installation electric block, and carry out trail run.
Compared with prior art, technical advantage of the present invention is:
1, the first road concrete support around hole is carried out large face shrouding, as first road shrouding, for transport trolley provides transport channel, earth moving vehicles, without the need to travelling to foundation ditch, can complete earthwork shipment, greatly reduce vehicle cleaning on first road supports; Construction for succeeding body structure provides material stockyard, and avoid the Secondary Transport of material, save construction cost, speed shortens the construction period; For the installation of mound platform and steel headframe provides place, its structure is simple, and receives bracing members integrated construction, easy construction;
2, vertically carrying indigenous equipment adopts steel headframe to carry indigenous equipment, it is not by the restriction in on-the-spot ferro-concrete ramp, add unearthed path, about 1 month duration in advance, be specially adapted in the deep foundation pit construction of narrow field, solve because narrow field, inner support area are large, support between clear distance little, support bottom earth excavation difficulty, path of being unearthed few, can not utilize in a conventional manner and put the technical barrier that slope completes earth excavation;
3, mound platform is located on first road shrouding, and at the morning of evening peak traffic and in the rainy day can not transport outward, the position that can support shrouding in first road arrange mound district, and stack the earthwork that can not transport outward in time, the foundation ditch deadline shifts to an earlier date temporarily;
4, construction equipment simple, flexibly, pollute little, noise is low, do not disturb residents.
When the present invention designs openings position and inner support absolute altitude, by pattern foundation pit supporting structure vertical member as stand column pile etc. avoids the engineering pile of agent structure, pillar and well, pattern foundation pit supporting structure horizontal struts system avoids the position of formal structure horizontal force component; Agent structure pillar position reserves hole in first road inner support, the earth excavation stage, as unearthed passage, the subsequent structural construction stage, can ensure that agent structure does not affect by supporting removal, normal construction.Meanwhile, the present invention is according to each construction stage, and different parts preloading requirement, has also carried out Force Calculation to whole support system, ensures that support system can meet each construction stage operating needs.
Accompanying drawing explanation
Fig. 1 is the integral structure schematic diagram carrying soil series system of the narrow zone deep foundation pit of construction construction that the present invention relates to;
Fig. 2 is the perspective view of the steel headframe 4 that the present invention relates to;
Fig. 3 is the front elevation of the steel headframe 4 that the present invention relates to;
Fig. 4 is the birds-eye view of the steel headframe 4 that the present invention relates to;
Fig. 5 is the set-up mode schematic diagram of the mound platform 6 that the present invention relates to.
Reference numeral: the stake of 1-foundation pit enclosure, 2-foundation ditch stand column pile, 3-concrete support, 31-first road concrete support, 32-first road shrouding, 4-steel headframe, 41-column, 42-crossbeam, 43-track girder, 5-electric block, 6-mound platform, 7-retaining wall, 8-water-blocking bank, 9-reinforce knoll, 10-hole, 11-muck haulage car, 12-suspension bucket, 13-inspection platform, 14-suspension bucket preformed hole.
Detailed description of the invention
Be described principle of the present invention and feature below in conjunction with accompanying drawing, example, only for explaining the present invention, is not intended to limit scope of the present invention.
As Fig. 1, a kind of soil series of carrying of narrow zone deep foundation pit of construction construction is united, and comprise foundation pit support system, vertically carry indigenous equipment and mound platform, described foundation pit support system comprises foundation pit enclosure stake 1, foundation ditch stand column pile 2 and concrete support 3, it is characterized in that:
Described concrete support 3 comprises some roads from top to bottom, and the first road concrete support 31 around hole 10 carries out large face shrouding, as arranging the first road shrouding 32 carrying indigenous equipment and mound platform; Described first road shrouding 32 is armoured concrete slabs, and its thickness range is 200 ~ 350mm, and the support beam at described armoured concrete slab and foundation ditch stand column pile 2 top is integrated moulding by casting, and the mutual colligation of reinforcing bar between the two connects.Described indigenous equipment of vertically carrying adopts steel headframe to carry native loop wheel machine, comprises and is erected at steel headframe on hole 10 4 and the electric block 5 of hanging on steel headframe 4; As Fig. 2 ~ 4, described steel headframe 4 comprises the column 41 of rectangle frame and the beneath support rectangle frame enclosed by crossbeam 42, described column 41 symmetry is fixed on around hole 10, the centre of described rectangle frame is provided with for hanging electric block 5 and as the track girder 43 of its moving track, the suspension hook of electric block connects suspension bucket 12; The column 41 of described steel headframe 4 is shaped steel column, and described crossbeam 42 comprises girder and secondary beam, and described girder comprises strength beam vertical with track girder 43 in the middle of Vierendeel girder and framework, described secondary beam between strength beam and Vierendeel girder, also perpendicular to track girder 43.Described steel headframe 4 is also provided with inspection platform 13.
As Fig. 5, described mound platform 6 is located on the first road shrouding around hole 10, is the region that retaining wall 7 and water-blocking bank 8 surround.Described mound platform 6 is away from muck haulage car transport channel and retaining wall 7 is established on the both sides in a bight at close hole 10, and remaining sides is along all establishing water-blocking bank 8, and the cross-sectional plane of described water-blocking bank 8 is protruding semicircular arc, and its maximum height is 5 ~ 20cm.In mound platform 6 outer, arrange along retaining wall 7 interval and reinforce knoll 9.Near the upper edge of the retaining wall 7 of side, hole, the position of respective carter beam 43 has the suspension bucket preformed hole 14 entering mound platform 6 for suspension bucket 12.
The invention still further relates to a kind of utilize above-mentioned a kind of narrow zone deep foundation pit of construction construction carry that soil series system carries out carry indigenous method, adopt crossed construction to carry indigenous method, it is characterized in that, comprise the steps:
Step one, determine the position at hole 10: the design paper of combining main body structure, foundation ditch stand column pile 2 is avoided the engineering pile of agent structure, pillar and well, determine number and the position at hole 10;
Step 2, the thickness of slab determining first road shrouding 32 and laying area: the specification of foundation transportation device and windrow require thickness of slab and the laying area of determining first road shrouding 32, first road shrouding 32 is located on the first road concrete support 31 around hole 10, as arranging the first road shrouding 32 carrying indigenous equipment and mound platform;
Step 3, earth excavation are to absolute altitude at the bottom of first road inner support: after foundation ditch periphery fender post and hole inner column pile driving construction, absolute altitude at the bottom of earth excavation to first road inner support is carried out in large face;
The integrated construction of step 4, first road inner support 31 and first road shrouding 32: comprise formwork erection, reinforcing bar binding and concreting, and carry out maintenance, the concrete grammar of construction is:
In step 1, first road inner support casting process, steel headframe 4 column embedded part is imbedded in first road inner support beam;
After step 2, Dai Shou road inner support beam concrete strength reach designing requirement, according to order, steel headframe column 41, crossbeam 42 and track girder 43 are installed; Column and embedded part adopt and are welded to connect, column 41, with bolts between crossbeam 42 and track girder 43.
Step 3, installation bridging and diagonal brace, ensure the safety of the stable of whole support body and unit member stress;
Step 4, installation and repairing platform 13, in order to ensure the normal operation of electric block, need arrange inspection platform on portal frame;
Step 5, installation electric block 5, and carry out trail run.
Step 5, installation vertically carry indigenous equipment: the concrete strength of Dai Shou road inner support 31 and first road shrouding 32 reaches after 75%, first road shrouding 32 is installed around hole steel headframe and carries native loop wheel machine, comprise the installation of steel headframe 4 and electric block 5; During making, according to inner support dimension of opening, determine that the spacing of steel frame column is 6m × 7m, according to height and the load requirement in Foundation Pit Support Design stage in early stage of earth moving vehicles, determine that the height of steel frame column is 6.9m, take into full account cubic metre of earth handling load and inspection platform position and load requirement simultaneously, carry out the design of raising legs.Adopt finite element software, in conjunction with construction actual loading operating mode, Force Calculation is carried out to lifting steel headframe, comprise the contents such as main stressed member, reaction at basement, pre-buried dowel, electric hoist to check, through Force Calculation, and consider installation requirements, column adopts HW300mm × 300mm × 10mm × 15mm, horizontal girder steel adopts HW400mm × 200mm × 8mm × 13mm, HW400mm × 150mm × 8mm × 13mm, and carries out Deepen Design to connecting joint;
The construction of step 6, mound platform 6: the construction first road shrouding 32 around hole carrying out retaining wall 7 and water-blocking bank 4, forms mound platform 6; Complete the construction of retaining wall 4 and water-blocking bank 4 at the openings position of first road inner support, form mound platform 6, the first floor shrouding position of each bont is all designed with mound district, when the earthwork cannot be transported outward in time, to stack the earthwork temporarily.Interim mound height is no more than 2m, to meet the restriction requirement of floor plan load.Mound district need arrange concrete retaining wall height 1500mm, thick 200mm, two-layer two-way reinforcement, need arrange water-blocking bank, trickle to prevent rainwater everywhere in other side in mound district.Water-blocking bank is curved, vertex height 150mm, is convenient to muck haulage garage and walks;
Step 7, utilize completed indigenous equipment of carrying to carry out carrying soil: to start electric block 5, make, bottom suspension bucket 12 vertical landing to hole, to rise after filling the earthwork, enter mound platform 6 and carry out discharging, repeat until be excavated to absolute altitude at the bottom of second inner support; If earth excavation is night work, then suspension bucket 12 is utilized the earthwork directly to be had bad luck on muck haulage car 11; If operation on daytime, does not allow earthwork transportation, then by the earthwork that suspension bucket 12 is had bad luck up, stack in the mound platform 6 within the scope of first floor retaining wall;
Step 8, while earth excavation, repeat step 7 and carry out proposing soil construction, until be excavated to absolute altitude at the bottom of foundation ditch.The concrete strength of Dai Shou road inner support reaches after 100%, adopts excavating machine excavation to support the downside earthwork, and utilizes and vertically carry indigenous equipment and complete a cubic metre of earth vertical transport operation, until be excavated to absolute altitude at the bottom of second inner support; If earth excavation is night work, then suspension bucket 12 is utilized the earthwork directly to be had bad luck on muck haulage car; If operation on daytime, does not allow earthwork transportation, then by the earthwork that suspension bucket 12 is had bad luck up, stack in the mound platform within the scope of first floor retaining wall.Construction second inner support: same to step 3; According to different foundation depth and inner support number of channels, complete follow-up work, until be excavated to absolute altitude at the bottom of foundation ditch.Construction and the vertical transport in clear groove stage of successive projects stake all can adopt this vertical transport equipment.
The present embodiment can excavate the earthwork that first road, southern side supports downside under first road supports not closed operating mode, earth excavation time advance about 1.5 months, for subsequent construction carries out providing condition smoothly, if traditionally carry indigenous method to construct, carry out support downside earth excavation after needing maintenance to structural strength to reach 90% after inner support construction, construction period is longer.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. the soil series of carrying of a narrow zone deep foundation pit of construction construction is united, comprise foundation pit support system, vertically carry indigenous equipment and mound platform, described foundation pit support system comprises foundation pit enclosure stake (1), foundation ditch stand column pile (2) and concrete support (3), it is characterized in that:
Described concrete support (3) comprises some roads from top to bottom, and hole (10) first road concrete support (31) around carries out large face shrouding, as arranging first road shrouding (32) carrying indigenous equipment and mound platform;
Described indigenous equipment of vertically carrying adopts steel headframe to carry native loop wheel machine, comprises and is erected at steel headframe (4) on hole (10) and hangs the electric block (5) on steel headframe (4);
Described steel headframe (4) comprises the column (41) of rectangle frame and the beneath support rectangle frame enclosed by crossbeam (42), described column (41) symmetry is fixed on hole (10) around, the centre of described rectangle frame is provided with for hanging electric block (5) and as the track girder (43) of its moving track, the suspension hook of electric block connects suspension bucket (12);
Described mound platform (6) is located on the first road shrouding around of hole (10), is the region that retaining wall (7) and water-blocking bank (8) surround.
2. the soil series of carrying of a kind of narrow zone deep foundation pit of construction construction according to claim 1 is united, it is characterized in that: the column (41) of described steel headframe (4) is shaped steel column, described crossbeam (42) comprises girder and secondary beam, described girder comprises strength beam vertical with track girder (43) in the middle of Vierendeel girder and framework, described secondary beam between strength beam and Vierendeel girder, also perpendicular to track girder (43).
3. the soil series of carrying of a kind of narrow zone deep foundation pit of construction construction according to claim 1 is united, it is characterized in that: described first road shrouding (32) is armoured concrete slab, the support beam at described armoured concrete slab and foundation ditch stand column pile (2) top is integrated moulding by casting, and the mutual colligation of reinforcing bar between the two connects.
4. the soil series of carrying of a kind of narrow zone deep foundation pit of construction construction according to claim 1 is united, it is characterized in that: described mound platform (6) is away from muck haulage car transport channel and retaining wall (7) is established on the both sides in a bight at close hole (10), remaining sides is along all establishing water-blocking bank (8), the cross-sectional plane of described water-blocking bank (8) is protruding semicircular arc, and its maximum height is 5 ~ 20cm.
5. the soil series of carrying of a kind of narrow zone deep foundation pit of construction construction according to claim 1 is united, and it is characterized in that: in mound platform (6) outer, arranges reinforce knoll (9) along retaining wall (7) interval; Near the upper edge of the retaining wall (7) of side, hole, the position of respective carter beam (43) has the suspension bucket preformed hole (14) entering mound platform (6) for suspension bucket (12).
6. the soil series of carrying of a kind of narrow zone deep foundation pit of construction construction according to claim 1 is united, and it is characterized in that: described steel headframe (4) is also provided with inspection platform (13).
7. utilize the construction of a kind of narrow zone deep foundation pit of construction described in claim 1 ~ 6 any one carry that soil series system carries out carry indigenous method, it is characterized in that, comprise the steps:
Step one, determine the position of hole (10): the design paper of combining main body structure, foundation ditch stand column pile (2) is avoided the engineering pile of agent structure, pillar and well, determine number and the position at hole (10);
Step 2, the thickness of slab determining first road shrouding (32) and laying area: the specification of foundation transportation device and windrow require thickness of slab and the laying area of determining first road shrouding (32), first road shrouding (32) is located on first road concrete support (31) around, hole (10), as arranging first road shrouding (32) carrying indigenous equipment and mound platform;
Step 3, earth excavation are to absolute altitude at the bottom of first road inner support: after foundation ditch periphery fender post and hole inner column pile driving construction, absolute altitude at the bottom of earth excavation to first road inner support is carried out in large face;
The integrated construction in step 4, first road inner support (31) and first road shrouding (32): comprise formwork erection, reinforcing bar binding and concreting, and carry out maintenance;
Step 5, installation vertically carry indigenous equipment: the concrete strength in Dai Shou road inner support (31) and first road shrouding (32) reaches after 75%, first road shrouding (32) is installed around hole steel headframe and carries native loop wheel machine, comprise the installation of steel headframe (4) and electric block (5);
The construction of step 6, mound platform (6): the construction first road shrouding (32) around hole carrying out retaining wall (7) and water-blocking bank (4), forms mound platform (6);
Step 7, completed indigenous equipment of carrying is utilized to carry out carrying soil: to start electric block (5), make bottom suspension bucket (12) vertical landing to hole, rise after filling the earthwork, enter mound platform (6) and carry out discharging, repeat until be excavated to absolute altitude at the bottom of second inner support;
Step 8, while earth excavation, repeat step 7 and carry out proposing soil construction, until be excavated to absolute altitude at the bottom of foundation ditch.
8. a kind of narrow zone deep foundation pit of construction construction according to claim 7 carry that soil series system carries out carry indigenous method, it is characterized in that: in described step 7, if earth excavation is night work, then suspension bucket (12) is utilized the earthwork directly to be had bad luck on muck haulage car (11); If operation on daytime, does not allow earthwork transportation, then by the earthwork that suspension bucket (12) is had bad luck up, stack in the mound platform (6) within the scope of first floor retaining wall.
9. a kind of narrow zone deep foundation pit of construction construction according to claim 7 carry that soil series system carries out carry indigenous method, it is characterized in that: the concrete grammar of described step 4 Zhong Shou road inner support (31) and first road shrouding (32) integrated construction is:
Step 1, according to result of a measurement, carry out earth excavation to absolute altitude at the bottom of first road inner support;
Step 2, first road inner support (31) and the support of shrouding (32) position, first road are set up with template system;
The reinforcing bar in step 3, first road inner support (31) of colligation and first road shrouding (32);
Step 4, carry out the concreting in first road inner support (31) and first road shrouding (32);
Step 5, treat concreting after, with covered rearing with plastic film in 12 hours, moisture-keeping maintaining.
10. a kind of narrow zone deep foundation pit of construction construction according to claim 8 or claim 9 carry that soil series system carries out carry indigenous method, it is characterized in that: in described step 5, the concrete installation steps of steel headframe are as follows:
In step 1, first road inner support casting process, steel headframe (4) column embedded part is imbedded in first road inner support beam;
After step 2, Dai Shou road inner support beam concrete strength reach designing requirement, according to order, steel headframe column (41), crossbeam (42) and track girder (43) are installed; Column and embedded part adopt and are welded to connect, column (41), with bolts between crossbeam (42) and track girder (43);
Step 3, installation bridging and diagonal brace, ensure the safety of the stable of whole support body and unit member stress;
Step 4, installation and repairing platform (13), in order to ensure the normal operation of electric block, need arrange inspection platform on portal frame;
Step 5, installation electric block (5), and carry out trail run.
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| CN110644505A (en) * | 2019-09-11 | 2020-01-03 | 上海市基础工程集团有限公司 | Rapid soil taking system and method for ultra-deep shaft foundation pit construction |
| CN110733977A (en) * | 2018-07-19 | 2020-01-31 | 泸州全舍会建材科技有限公司 | quick-detachable hoisting device based on building main body structure and quick construction method |
| CN110747861A (en) * | 2019-10-30 | 2020-02-04 | 中国建筑第四工程局有限公司 | High-water-level deep foundation pit excavation construction method |
| CN112854230A (en) * | 2021-01-09 | 2021-05-28 | 湖南省城乡建设勘测院 | Construction method of deep foundation pit and transportation device of soil for deep foundation pit |
| CN113023562A (en) * | 2021-03-05 | 2021-06-25 | 上海建工二建集团有限公司 | Soil body taking and transporting device and method for existing building underground space development |
| CN113818694A (en) * | 2021-07-16 | 2021-12-21 | 中国建筑一局(集团)有限公司 | Construction system and construction method for pouring steel pipe column without dismounting plate |
| CN113845015A (en) * | 2021-09-05 | 2021-12-28 | 中建三局第一建设工程有限责任公司 | Earthwork hoisting system and method for foundation pit bottom manual hole digging pile |
| CN115110577A (en) * | 2022-08-01 | 2022-09-27 | 上海建工一建集团有限公司 | Construction method of large basement assembled from periphery to center |
| CN115142428A (en) * | 2022-06-30 | 2022-10-04 | 中建八局科技建设有限公司 | Advanced construction method for deep foundation pit yard |
| CN116043857A (en) * | 2023-01-17 | 2023-05-02 | 中建八局第二建设有限公司 | Claw-shaped buttress steel frame and fertilizer tank earthwork excavation method |
| CN116161559A (en) * | 2023-03-27 | 2023-05-26 | 成都建工第三建筑工程有限公司 | Construction device for assembled building shock insulation foundation |
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| CN110733977A (en) * | 2018-07-19 | 2020-01-31 | 泸州全舍会建材科技有限公司 | quick-detachable hoisting device based on building main body structure and quick construction method |
| CN109853657A (en) * | 2019-03-15 | 2019-06-07 | 湖北工业大学 | A kind of artificial digging pile automatic clinker-removing device and application method based on BIM technology |
| CN110644505A (en) * | 2019-09-11 | 2020-01-03 | 上海市基础工程集团有限公司 | Rapid soil taking system and method for ultra-deep shaft foundation pit construction |
| CN110747861A (en) * | 2019-10-30 | 2020-02-04 | 中国建筑第四工程局有限公司 | High-water-level deep foundation pit excavation construction method |
| CN112854230B (en) * | 2021-01-09 | 2024-03-15 | 湖南省城乡建设勘测院有限公司 | Construction method of deep foundation pit and conveying device of soil for deep foundation pit |
| CN112854230A (en) * | 2021-01-09 | 2021-05-28 | 湖南省城乡建设勘测院 | Construction method of deep foundation pit and transportation device of soil for deep foundation pit |
| CN113023562A (en) * | 2021-03-05 | 2021-06-25 | 上海建工二建集团有限公司 | Soil body taking and transporting device and method for existing building underground space development |
| CN113818694A (en) * | 2021-07-16 | 2021-12-21 | 中国建筑一局(集团)有限公司 | Construction system and construction method for pouring steel pipe column without dismounting plate |
| CN113845015A (en) * | 2021-09-05 | 2021-12-28 | 中建三局第一建设工程有限责任公司 | Earthwork hoisting system and method for foundation pit bottom manual hole digging pile |
| CN115142428A (en) * | 2022-06-30 | 2022-10-04 | 中建八局科技建设有限公司 | Advanced construction method for deep foundation pit yard |
| CN115110577A (en) * | 2022-08-01 | 2022-09-27 | 上海建工一建集团有限公司 | Construction method of large basement assembled from periphery to center |
| CN115110577B (en) * | 2022-08-01 | 2023-11-14 | 上海建工一建集团有限公司 | Construction method for large basement assembled from four sides to center |
| CN116043857A (en) * | 2023-01-17 | 2023-05-02 | 中建八局第二建设有限公司 | Claw-shaped buttress steel frame and fertilizer tank earthwork excavation method |
| CN116043857B (en) * | 2023-01-17 | 2024-06-18 | 中建八局第二建设有限公司 | Claw-shaped buttress steel frame and fertilizer tank earthwork excavation method |
| CN116161559A (en) * | 2023-03-27 | 2023-05-26 | 成都建工第三建筑工程有限公司 | Construction device for assembled building shock insulation foundation |
| CN116161559B (en) * | 2023-03-27 | 2024-05-28 | 成都建工第三建筑工程有限公司 | Construction device for assembled building shock insulation foundation |
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