CN106149731A - Main building basement construction method for supporting with annex - Google Patents
Main building basement construction method for supporting with annex Download PDFInfo
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- CN106149731A CN106149731A CN201610442856.3A CN201610442856A CN106149731A CN 106149731 A CN106149731 A CN 106149731A CN 201610442856 A CN201610442856 A CN 201610442856A CN 106149731 A CN106149731 A CN 106149731A
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- main building
- basement
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- support
- annex
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- 238000010276 construction Methods 0.000 title claims abstract description 61
- 238000009412 basement excavation Methods 0.000 claims abstract description 31
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 18
- 239000010959 steel Substances 0.000 claims abstract description 18
- 238000000034 method Methods 0.000 claims abstract description 9
- 239000002689 soil Substances 0.000 claims description 20
- 238000007569 slipcasting Methods 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 239000011083 cement mortar Substances 0.000 claims description 6
- 238000002347 injection Methods 0.000 claims description 6
- 239000007924 injection Substances 0.000 claims description 6
- 239000004568 cement Substances 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims description 3
- 239000011440 grout Substances 0.000 claims description 3
- 239000002002 slurry Substances 0.000 claims description 3
- 239000007921 spray Substances 0.000 claims description 3
- 238000011065 in-situ storage Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000009435 building construction Methods 0.000 description 2
- 238000005056 compaction Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 235000001674 Agaricus brunnescens Nutrition 0.000 description 1
- 241001310793 Podium Species 0.000 description 1
- 210000001015 abdomen Anatomy 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/02—Foundation pits
- E02D17/04—Bordering surfacing or stiffening the sides of foundation pits
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D19/00—Keeping dry foundation sites or other areas in the ground
- E02D19/06—Restraining of underground water
- E02D19/12—Restraining of underground water by damming or interrupting the passage of underground water
- E02D19/18—Restraining of underground water by damming or interrupting the passage of underground water by making use of sealing aprons, e.g. diaphragms made from bituminous or clay material
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/045—Underground structures, e.g. tunnels or galleries, built in the open air or by methods involving disturbance of the ground surface all along the location line; Methods of making them
- E02D29/05—Underground structures, e.g. tunnels or galleries, built in the open air or by methods involving disturbance of the ground surface all along the location line; Methods of making them at least part of the cross-section being constructed in an open excavation or from the ground surface, e.g. assembled in a trench
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/02—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against ground humidity or ground water
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/0007—Base structures; Cellars
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Paleontology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Hydrology & Water Resources (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
The invention discloses the main building basement construction method for supporting of a kind of band annex, it is characterized in that construction procedure includes: (1) construction main building enclosure wall, pre-embedded steel slab waterstop；(2) construction annex enclosure wall and interim enclosure wall；(3) construction high-pressure rotary jet grouting pile；(4) construction main building support column；(5) middle part girder truss and the truss web of main building first support system, the then support of construction annulus are done；Carry out angle brace of constructing again；(6) earth excavation supports to second and arranges position；(7) middle part girder truss and the truss web of main building second support system, the then support of construction annulus are done；Carry out angle brace of constructing again；(8) earth excavation supports to the 3rd road and arranges position；(9) middle part girder truss and the truss web of main building the 3rd road support system, the then support of construction annulus are done；Carry out angle brace of constructing again；(10) earth excavation is to main building basement bottom board, pours basement bottom board concrete.
Description
Technical field
The present invention relates to a kind of basement construction method for supporting, particularly to the main building basement supporting construction side of band annex
Method.
Background technology
Along with the development of urban construction, skyscraper occurs like the mushrooms after rain, for the skyscraper of commercial function, main
Building is the most interdependent with podium and builds, and main building can connect with annex basement.When basement construction, excavation area can be very big,
On the one hand the tau-effect meeting cut the earth is it is obvious that there will be the bad phenomenon such as the earthwork protuberance when cutting the earth；On the other hand, cut the earth the time
Can be the longest, the main building construction period can be the longest.Owing to the main building duration is controlling node, the main building construction period determines whole
The delivery time of engineering.Construction period can be the longest traditionally, and construction safety is difficult to obtain guarantee.
Summary of the invention
The present invention is to provide the main building basement construction method for supporting of a kind of band annex, solves problem of the prior art.
To this end, the present invention arranges interim enclosure wall between basement main building and annex, make main building basement and annex ground
Lower room forms two independent spaces.Owing to the main building basement construction time is controlling node, after interim enclosure wall completes
First construction main building basement, main building basement uses constructs along method, basement bottom board of the most first constructing, then executes from the bottom to top
Work, annex basement of constructing again after main building basement roof completes, annex basement uses inverse method to construct, under i.e. first construction ground
Ceiling plate, then carry out constructing in order to the construction of basement annex does not disturb main building structure sheaf to construct from top to bottom, basement
Synchronize to carry out main building basement construction during annex construction.
Arranging interim enclosure wall between main building and annex, interim enclosure wall width is 700～900mm, and interim enclosure wall is deep
Degree is 1.5～2 times of foundation depth, interim enclosure wall concrete strength be C30 or more than, main building enclosure wall does not only has supporting
Performance doubles as outer wall of basement, and main building enclosure wall width is 700～900mm, the main building enclosure wall degree of depth be foundation depth 1.8～
2.5 times, main building enclosure wall concrete strength be C30 or more than.After treating basement construction, patch oil inside main building enclosure wall
Felt, does bricking wall inside malthoid, to meet basement antiseepage requirement.Annex enclosure wall width is 700～900mm, and annex is gone along with sb. to guard him
The wall degree of depth is 1.8～2.5 times of foundation depth, annex enclosure wall concrete strength be C30 or more than.Main building enclosure wall and skirt
Building arranges 2 high-pressure rotary jet grouting piles outside enclosure wall handing-over position, solves the seepage problem of antiseepage weak part.Go along with sb. to guard him at main building
Wall, annex enclosure wall and go along with sb. to guard him temporarily wall chase section seam crossing use 2 high-pressure rotary jet grouting piles squeegee as antiseepage, main building enclosure wall turns
Angular position and annex enclosure wall rotation angle position are also provided with 2 high-pressure rotary jet grouting piles.Main building enclosure wall, annex enclosure wall and enclose temporarily
Revetment crossover sites arranges steel plate water stopper, and steel plate water-stopping tape thickness is 3～5mm, arranges annulus support, circle inside main building enclosure wall
Central shoring width is 500～700mm, height be 700～900mm, annulus support concrete strength be C30 or more than.Annulus support with
Arranging angle brace between main building enclosure wall, angle brace uses concrete support or steel support.Truss support body is set in the middle part of main building enclosure wall
System, truss support system can alleviate the horizontal force suffered by annulus support significantly.Truss support system includes girder truss and truss abdomen
Bar.Girder truss width is 400～600mm, height be 500～700mm, girder truss concrete strength be C30 or more than, truss
Web member width is 300～500mm, height be 500～700mm, truss web concrete strength be C30 or more than.Girder truss
Bottom arranges support column to maintain Stability in Plane, and support column uses steel column, and steel column uses two channel-section steels to be spliced, and steel column is inserted
Enter cast-in-situ bored pile.Annex top board indwelling soil outlet, annex soil outlet area is 30～100m2, turned welt is set up in soil outlet corner
Beam improves the stress state in corner, turns under turned welt beam, and turned welt depth of beam is 250～300mm, and width is 200mm.Annex is every 50
～70m arranges a soil outlet, soil outlet is arranged on elevator & stairs and the region that punches of structure design as far as possible.
Depths, the local such as elevator, sump carries out compaction grouting process, and slip casting width is 3m, and slip casting thickness is 5m.
Construction procedure includes:
(1) construction main building enclosure wall, pre-embedded steel slab waterstop；
(2) construction annex enclosure wall and interim enclosure wall；
(3) construction high-pressure rotary jet grouting pile；
In order to improve anti-seepage effect, rotary churning pile rig uses hydraulic power head, and unit head is being led by the elevator machine travel that works
Moving on tower, the revolution of unit head is driven through reduction box by fluid power motor, it is achieved revolution and the swing of different angles, utilizes and bores
Machine is drilled into soil layer precalculated position the Grouting Pipe with nozzle, makes serosity become high-pressure spray with high pressure equipment and penetrates from nozzle,
Lifting limit, rotation limit, limit injection serosity, makes serosity and grogs Forced Mixing, forms induration after grout cures in soil.Rotary churning pile
Slip casting form uses and swings injection.The high-pressure water pressure of rotary churning pile is 30MPa, flow 90L/min；Compressed air pressure is 0.6
～0.8MPa, flow is 6m3/h；Cement mortar pressure is 5MPa, and flow is 80～100L/min.Cement slurry density is 1.60g/
Em, the cement mortar ratio of mud is 0.8；30m with lower portion promote speed be 6～8cm/min, 30m with upper bit promote speed be 8～
10em/min。
(4) construction main building support column；
(5) middle part girder truss and the truss web of main building first support system, the then support of construction annulus are done；Execute again
Work angle brace；
(6) earth excavation supports to second and arranges position；
(7) middle part girder truss and the truss web of main building second support system, the then support of construction annulus are done；Execute again
Work angle brace；
(8) earth excavation supports to the 3rd road and arranges position；
(9) middle part girder truss and the truss web of main building the 3rd road support system, the then support of construction annulus are done；Execute again
Work angle brace；
(10) earth excavation is to main building basement bottom board, pours basement bottom board concrete；
(11) remove girder truss and truss web and annulus during the 3rd road supports to support and angle brace；
(12) the 3rd road support zone basement floorslab concrete is poured；
(13) remove girder truss and truss web and annulus during second supports to support and angle brace；
(14) second support zone basement floorslab concrete is poured；
(15) main building basement roof concrete is poured；
(16) annex concrete roof, indwelling soil outlet are poured；
(17) the excavation annex earthwork is to one layer of basement floor, pours basement floorslab concrete；
Earth excavation is carried out according to " subregion, point title, balance " principle；In making hole, earth excavation level of approximation declines, it is ensured that
Support system uniform stressed, prevents the outer unstability of support system plane.
(18) the excavation annex earthwork is to two layers of basement floor, pours basement floorslab concrete；
(19) the excavation annex earthwork is to three layers of basement floor, pours basement floorslab concrete；
(20) the excavation annex earthwork is to three layers of basement bottom board position, pours underplate concrete.
The present invention, by main building and the line production of annex construction, accelerates construction speed, and safe condition obtains again and changes
Kind, shortening to save with cost in the duration has obvious effect.
Accompanying drawing explanation
Fig. 1 is the main building basement supporting construction schematic diagram of band annex.
In each accompanying drawing: 1, main building enclosure wall, 2, interim enclosure wall, 3, annulus support, 4, girder truss, 5, truss web, 6,
Dagger, 7, high-pressure rotary jet grouting pile, 8, annex enclosure wall, 9, steel plate water stopper, 10, soil outlet, 11, angle brace.
Detailed description of the invention
Certain engineering is 16 layers of main building, is frame cylinder shear wall structure, annex be 3-tier architecture, main building and annex be 3 layers of underground
Room, cutting depth is 11.2m, and engineering pile is cast-in-situ bored pile, and the cast-in-situ bored pile degree of depth is 48m.
Arranging interim enclosure wall 2 between the present embodiment main building and annex, interim enclosure wall 2 width is 800mm, goes along with sb. to guard him temporarily
Wall 2 degree of depth is the 20m of foundation depth, and interim enclosure wall 2 concrete strength is C30, and main building enclosure wall 1 does not only have supporting performance and holds concurrently
Making outer wall of basement, main building enclosure wall 1 width is 800mm, and main building enclosure wall 1 degree of depth is 25m, main building enclosure wall 1 strong concrete
Degree is C30.After treating basement construction, paste malthoid inside main building enclosure wall 1, inside malthoid, do bricking wall.Annex enclosure wall 8
Width is 800mm, and annex enclosure wall 8 degree of depth is 25m, and annex enclosure wall 1 concrete strength is C30.Main building enclosure wall 1 and annex
Enclosure wall 8 joins and arranges 2 high-pressure rotary jet grouting piles 7 outside position, solves the seepage problem of antiseepage weak part.At main building enclosure wall
1, annex enclosure wall 8 and interim enclosure wall 2 groove section seam crossing use 2 high-pressure rotary jet grouting piles 7 to squeegee as antiseepage, main building enclosure wall
1 rotation angle position and annex enclosure wall 8 rotation angle position are also provided with 2 high-pressure rotary jet grouting piles 7.Main building enclosure wall 1, annex enclosure wall 8 with
And enclosure wall 2 crossover sites arranges steel plate water stopper 9 temporarily, steel plate water stopper 9 thickness is 4mm, arranges inside main building enclosure wall 1
Annulus support 3, it is 600mm that annulus supports 3 width, and height is 800mm, and it is C30 that annulus supports 3 concrete strengths.Annulus support 3 is enclosed with main building
Arranging angle brace 11 between revetment 1, angle brace 11 uses concrete to support.Arranging truss support system in the middle part of main building enclosure wall 1, truss props up
Annulus support horizontal force suffered by 3 can be alleviated significantly in support body system.Truss support system includes girder truss 4 and truss web 5.Truss
Beam 4 width is 500mm, and height is 600mm, and girder truss 4 concrete strength is C30, and truss web 5 width is 400mm, and height is
600mm, truss web 5 concrete strength is C30.Girder truss 4 bottom arranges support column 6 to maintain Stability in Plane, support column 6
Using steel column, steel column uses two channel-section steels to be spliced, and steel column inserts cast-in-situ bored pile.Annex top board indwelling soil outlet, annex
Soil outlet area is 70m2, soil outlet corner is set up turned welt beam and is improved the stress state in corner, turns over, turned welt depth of beam under turned welt beam
For 250mm, width is 200mm.Annex arranges a soil outlet 10 every 60m, soil outlet 10 be arranged on as far as possible elevator & stairs and
The region that punches of structure design.Depths, the local such as elevator, sump carries out compaction grouting process, and slip casting width is 3m, slip casting
Thickness is 5m.
Construction procedure includes:
(1) construction main building enclosure wall 1, pre-embedded steel slab waterstop 9；
(2) construction annex enclosure wall 8 and interim enclosure wall 2；
(3) construction high-pressure rotary jet grouting pile 7；
In order to improve anti-seepage effect, rotary churning pile rig uses hydraulic power head, and unit head is being led by the elevator machine travel that works
Moving on tower, the revolution of unit head is driven through reduction box by fluid power motor, it is achieved revolution and the swing of different angles, utilizes and bores
Machine is drilled into soil layer precalculated position the Grouting Pipe with nozzle, makes serosity become high-pressure spray with high pressure equipment and penetrates from nozzle,
Lifting limit, rotation limit, limit injection serosity, makes serosity and grogs Forced Mixing, forms induration after grout cures in soil.Rotary churning pile
Slip casting form uses and swings injection.The high-pressure water pressure of rotary churning pile is 30MPa, flow 90L/min；Compressed air pressure is
0.7MPa, flow is 6m3/h；Cement mortar pressure is 5MPa, and flow is 90L/min.Cement slurry density is 1.60g/em, cement mortar
The ratio of mud is 0.8；30m is with lower portion lifting speed as 7em/min, and 30m promotes speed as 9cm/min with upper bit.
(4) construction main building support column 6；
(5) middle part girder truss 4 and the truss web 5 of main building first support system, then construction annulus support 3 are done；Enter again
Row construction angle brace 11；
(6) earth excavation supports to second and arranges position；
(7) middle part girder truss 4 and the truss web 5 of main building second support system, then construction annulus support 3 are done；Enter again
Row construction angle brace 11；
(8) earth excavation supports to the 3rd road and arranges position；
(9) middle part girder truss 4 and the truss web 5 of main building the 3rd road support system, then construction annulus support 3 are done；Enter again
Row construction angle brace 11；
(10) earth excavation is to main building basement bottom board, pours basement bottom board concrete；
(11) girder truss 4 and truss web 5 and annulus support 3 and angle brace 11 during the 3rd road supports are removed；
(12) the 3rd road support zone basement floorslab concrete is poured；
(13) girder truss 4 and truss web 5 and annulus support 3 and angle brace 11 during second supports are removed；
(14) second support zone basement floorslab concrete is poured；
(15) main building basement roof concrete is poured；
(16) annex concrete roof, indwelling soil outlet 10 are poured；
(17) the excavation annex earthwork is to one layer of basement floor, pours basement floorslab concrete；
Earth excavation is carried out according to " subregion, point title, balance " principle；In making hole, earth excavation level of approximation declines, it is ensured that
Support system uniform stressed, prevents the outer unstability of support system plane.
(18) the excavation annex earthwork is to two layers of basement floor, pours basement floorslab concrete；
(19) the excavation annex earthwork is to three layers of basement floor, pours basement floorslab concrete；
(20) the excavation annex earthwork is to three layers of basement bottom board position, pours underplate concrete.
Through Site Detection this basement Stability Analysis of Structures in work progress, main building supporting displacement is less than 13mm, and annex props up
Protecting displacement and be less than 10mm, support beam structure is stable, and phenomenon without exception occurs.
Claims (4)
1. a main building basement construction method for supporting for band annex, is characterized in that construction procedure includes:
(1) construction main building enclosure wall, pre-embedded steel slab waterstop；
(2) construction annex enclosure wall and interim enclosure wall；
(3) construction high-pressure rotary jet grouting pile；
(4) construction main building support column；
(5) middle part girder truss and the truss web of main building first support system, the then support of construction annulus are done；Carry out angle of constructing again
Support；
(6) earth excavation supports to second and arranges position；
(7) middle part girder truss and the truss web of main building second support system, the then support of construction annulus are done；Carry out angle of constructing again
Support；
(8) earth excavation supports to the 3rd road and arranges position；
(9) middle part girder truss and the truss web of main building the 3rd road support system, the then support of construction annulus are done；Carry out angle of constructing again
Support；
(10) earth excavation is to main building basement bottom board, pours basement bottom board concrete；
(11) remove girder truss and truss web and annulus during the 3rd road supports to support and angle brace；
(12) the 3rd road support zone basement floorslab concrete is poured；
(13) remove girder truss and truss web and annulus during second supports to support and angle brace；
(14) second support zone basement floorslab concrete is poured；
(15) main building basement roof concrete is poured；
(16) annex concrete roof, indwelling soil outlet are poured；
(17) the excavation annex earthwork is to one layer of basement floor, pours basement floorslab concrete；
Earth excavation is carried out according to " subregion, point title, balance " principle；In making hole, earth excavation level of approximation declines, it is ensured that support
System uniform stressed, prevents the outer unstability of support system plane；
(18) the excavation annex earthwork is to two layers of basement floor, pours basement floorslab concrete；
(19) the excavation annex earthwork is to three layers of basement floor, pours basement floorslab concrete；
(20) the excavation annex earthwork is to three layers of basement bottom board position, pours underplate concrete.
The main building basement construction method for supporting of band annex the most according to claim 1, is characterized in that rotary churning pile rig is adopted
With hydraulic power head, unit head is moved on king-tower by the elevator machine travel that works, the revolution of unit head by fluid power motor through subtracting
Speed case drives, it is achieved revolution and the swing of different angles, utilizes rig that the Grouting Pipe with nozzle is drilled into soil layer precalculated position,
Make serosity become high-pressure spray with high pressure equipment to penetrate from nozzle, lifting limit, rotation limit, limit injection serosity, make serosity strong with grogs
System mixing, forms induration in soil after grout cures；Rotary churning pile slip casting form uses and swings injection.
The main building basement construction method for supporting of band annex the most according to claim 1, is characterized in that the high pressure of rotary churning pile
Water pressure is 30MPa, flow 90L/min；Compressed air pressure is 0.6～0.8MPa, and flow is 6m3/h；Cement mortar pressure is
5MPa, flow is 80～100L/min.Cement slurry density is 1.60g/cm, and the cement mortar ratio of mud is 0.8；30m carries with lower portion
Lifting speed is 6～8cm/min, and it is 8～10cm/min that 30m promotes speed with upper bit.
The main building basement construction method for supporting of band annex the most according to claim 1, is characterized in that treating basement construction
After, paste malthoid inside main building enclosure wall, do bricking wall inside malthoid, to meet basement antiseepage requirement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610442856.3A CN106149731B (en) | 2015-05-29 | 2015-05-29 | Main building basement construction method for supporting with annex |
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| CN201610442856.3A CN106149731B (en) | 2015-05-29 | 2015-05-29 | Main building basement construction method for supporting with annex |
| CN201510309657.0A CN104878763B (en) | 2015-05-29 | 2015-05-29 | Main building basement supporting construction with annex |
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| CN105804085B (en) * | 2016-04-19 | 2017-08-25 | 江苏东合南岩土科技股份有限公司 | Multiple-unit well shaft type underground three-dimensional garage subregion construction method |
| CN111042099B (en) * | 2019-12-19 | 2024-09-13 | 中国地质大学（武汉） | Water collecting well with replaceable water filtering structure |
| CN111270684B (en) * | 2020-03-24 | 2024-09-03 | 中铁第四勘察设计院集团有限公司 | Disassembly-free support rod piece, foundation pit support system and subway station construction method |
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2015
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| US20060059812A1 (en) * | 2004-08-30 | 2006-03-23 | Simmons Robert J | Column base to podium slab anchoring |
| CN101666095A (en) * | 2009-09-11 | 2010-03-10 | 朱奎 | Irregular foundation pit support and construction method |
| CN101718094A (en) * | 2009-11-10 | 2010-06-02 | 朱奎 | Construction method for retaining and protecting foundation pit of building with basemen |
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| CN106149731B (en) | 2018-08-10 |
| CN104878763A (en) | 2015-09-02 |
| CN104878763B (en) | 2016-08-24 |
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