CN106120803B - Base pit stand construction in the case of artesian water - Google Patents
Base pit stand construction in the case of artesian water Download PDFInfo
- Publication number
- CN106120803B CN106120803B CN201610442857.8A CN201610442857A CN106120803B CN 106120803 B CN106120803 B CN 106120803B CN 201610442857 A CN201610442857 A CN 201610442857A CN 106120803 B CN106120803 B CN 106120803B
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- Prior art keywords
- water
- pipe
- diameter
- artesian
- marine riser
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Classifications
-
- 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
- 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
- E02D31/10—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 soil pressure or hydraulic pressure
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2250/00—Production methods
- E02D2250/0046—Production methods using prestressing techniques
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2300/00—Materials
- E02D2300/0004—Synthetics
- E02D2300/0018—Cement used as binder
- E02D2300/002—Concrete
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Hydrology & Water Resources (AREA)
- Piles And Underground Anchors (AREA)
- Foundations (AREA)
Abstract
The invention discloses base pit stand construction in the case of a kind of artesian water,It is characterized in that vent is arranged in the range of artesian water,A vent is arranged along the every 10~15m of foundation pit,A diameter of 400~the 600mm of vent,Vent includes marine riser,Filter pipe,Sediment tube,Marine riser,Filter pipe,It is identical to precipitate pipe diameter,Marine riser,Filter pipe,Sediment tube uses pipe of concrete or steel pipe,Pipe of concrete wall thickness is 30mm,Thickness of steel pipe is 6mm,Clay is set outside marine riser,Ball sealer is set to be used for water proof outside marine riser in the range of 0.5~0.8m of water proof bottom of the tube,It is filter pipe below marine riser,Filter pipe is arranged on artesian water position,Aperture is dug on drainage tube wall to intake,Drainage pipe outer wall wraps up strainer,Aggregate chips is set to be used for drainage outside strainer,It is sediment tube below filter pipe.
Description
Technical field
The present invention relates to base pit stand construction in the case of a kind of artesian water, suitable for the realm of building construction.
Background technology
If foundation pit width is larger, supporting beam axle power can be very big, some supporting beams can not enough be destroyed due to load.Separately
Outside, the shearing of supporting beam adjacent edges is very big, engineering practice central branch support beam adjacent edges concrete because of shearing strength not
Enough destroyed.Support beam span very big in the case of foundation pit width is larger, middle part moment of flexure can be very big, some ergonomic supports
Curved it can be crushed in the middle part of beam bad.When deep basal pit lower part can reduce water-bearing layer upper confining bed with the presence of artesian aquifer, excavation pit
Thickness, when impermeable layer thickness reduces to a certain extent, the head pressure energy capping of artesian water or the foundation pit foundation soil that destroys by rush of water are given
Construction brings very big difficulty.
The content of the invention
The technical problems to be solved by the invention are to provide base pit stand construction in the case of a kind of artesian water, this method
The easy stress destruction of supporting beam, pressure-bearing water destruct bottom of foundation ditch foundation soil in solving the problems, such as foundation pit support construction.
Water-stop curtain is set in technical solution provided by the invention on the outside of support pile for this, if there are artesian water in place
Layer, water-stop curtain depth is 25~30m, and using three axis cement mixing pile water stopping curtains, cement mixing pile uses three rows.If not yet
There is artesian aquifer, water-stop curtain depth is 15~20m, and using two axis cement mixing pile water stopping curtains, cement mixing pile uses two
Row.
To be broken ground in order to prevent on the inside of support pile protuberance, support pile inner side is broken ground to be reinforced using high pressure water mud,
Position is reinforced as below the absolute altitude of foundation pit bottom, reinforcement depth is 1~1.2 times of excavation of foundation pit depth, and reinforcing width is 1~1.5m.
For the present invention according to the characteristics of big width foundation pit, the supporting point using engineering pile as supporting beam, makes supporting beam become to connect
Continuous beam, so as to reduce the span of supporting beam.Electric heat prestressing is carried out to deformed bar, makes the common of deformed bar and concrete
Load effect is more preferable, can bear bigger bending moment and axle power.Deformed bar is turned up near supporting-point, can effectively be suppressed
The generation of failure by shear.
Guan Liang is set at the top of support pile, Guan Liang concrete strength is greater than or equal to C30, and Guan Liang is highly 700~1000mm,
Supporting beam and engineering pile are coupled, and engineering pile reinforcing bar is stretched into after supporting beam to bend and anchored at a right angle, and anchorage length is 40 times of works
Journey stake bar diameter, support pile becomes two hold-down supports of supporting beam, and engineering pile becomes the bearing support of supporting beam, support
Beam becomes beam structure, this just alleviates the moment of flexure that supporting beam is born significantly.Supporting beam uses deformed bar, prestressing force
Reinforcing bar uses broken line tensioning, and broken line point is arranged on 2/3 position of 1/3 and single span of single span in beam structure, due to continuous
In girder construction, position is based on hogging moment load between 1/3 point of supporting-point and single span, and the present invention agrees with this feature and propping up
Hold a little that reinforcing bar using diagonally disposed, gives full play to reinforcing steel bar bear efficiency between 1/3 point of single span.Anchoring piece is by deformed bar
It is fixed on billet.
Oblique section of middle part of deformed bar sets branch ejection device, and oblique section of angle is highly controlled by branch ejection device.To subtract
Small frictional resistance, branch ejection device top surface do in the arc-shaped, the poly- trifluoro-ethylene plate of 1 5mm thickness of stickup in the cambered surface of branch ejection device, with
Reduce the frictional resistance between branch ejection device and deformed bar.
If place arranges vent in the range of artesian water, one is arranged along the every 10~15m of foundation pit there are artesian aquifer
Vent, a diameter of 400~600mm of vent, vent include marine riser, filter pipe, sediment tube, and marine riser, filter pipe, sink
Shallow lake pipe diameter is identical, and a diameter of 200~400mm, diameter is adjusted according to artesian head, is less than or equal to for artesian head
During 3m, a diameter of 200mm, when being more than 3m for artesian head and being less equal than 8m, a diameter of 250mm, for artesian head
When more than 8m and being less equal than 12m, a diameter of 300mm, when being more than 12m for artesian head and being less equal than 15m, diameter
For 350mm, when being more than 15m for artesian head, a diameter of 400mm.Marine riser, filter pipe, sediment tube use pipe of concrete
Or steel pipe, pipe of concrete wall thickness are 30mm, thickness of steel pipe 6mm sets clay outside marine riser, water proof bottom of the tube 0.5~
Set ball sealer to be used for water proof outside marine riser in the range of 0.8m, be filter pipe below marine riser, filter pipe is arranged on artesian water
Position, aperture is dug on drainage tube wall to intake, and hole diameter be 3~5mm, and percent opening is 15~20%, drainage pipe outer wall
Strainer is wrapped up, sets outside strainer aggregate chips to be used for drainage, aggregate chips a diameter of 2~4mm is sediment tube below filter pipe, sediment tube
Length is 1~1.2m.Ball sealer is made of rubber, is inflated ball sealer before placing, is put into vent, it is to float over decompression
On the water surface in hole.Then start to put clay, clay can be depressed into ball sealer water proof bottom of the tube, it is ensured that drainage layer water not to
Upper infiltration.
Construction procedure includes：
(1) construction work stake
The Construction of Engineering Pile of supporting beam is shelved to bottom elevation is supported, Other Engineering pile driving construction to basement bottom board bottom is marked
It is high.
(2) construction supporting stake
Support pile uses large diameter bored pile, and cast-in-situ bored pile deposit control is within 15cm.
(3) construction water-stop curtain
(4) construction soil cement stabilization zone
(5) Guan Liang is poured
(6) Construction Support beam
Supporting beam deformed bar is installed, branch ejection device is set, first time energization is carried out before supporting beam concreting
Heating, electrified regulation 5min, establishes primary stress, and deformed bar then is fixed on billet, anchoring piece by anchoring piece
Casting concrete after fixation, second of electrified regulation, electrified regulation 10min, in concrete are carried out in concrete initial set
Third time electrified regulation is carried out after pouring 12 hours, prestressing force is established, deformed bar is fixed on billet with anchoring piece.
(7) cut the earth
Earth excavation uses benzvalene form stage excavation, and earthwork lift height is 40~50mm, the neighbouring 2.5~3.5m scopes of foundation pit
The interior earthwork is first retained, and is deformed with making full use of the drag of periphery back-pressure soil to slow down support pile into hole.Middle part is excavated first
Region, is then used in the lower subregion of support, symmetrical shoveling, the foundation pit earthwork in the range of 2.5~3.5m nearby is finally transferred to, by digging machine
It is loaded into dump truck and transports foundation pit.
Brief description of the drawings
Fig. 1 is foundation pit supporting construction schematic diagram, and Fig. 2 is vent elevational schematic view, and Fig. 3 is 1 schematic diagram of vent section,
Fig. 4 is 2 schematic diagram of vent section.
In each attached drawing：1st, support pile, 2, water-stop curtain, 3, soil cement stabilization zone, 4, Guan Liang, 5, engineering pile, 6, supporting beam,
7th, deformed bar, 8, branch ejection device, 9, billet, 10, anchoring piece, 11, marine riser, 12, filter pipe, 13, sediment tube, 14,
Clay, 15, ball sealer, 16, strainer, 17, aggregate chips.
Embodiment
11 layers on the ground of certain engineering, 1 layer of underground, overall floorage 75400m2, wherein basement construction area 6100m, foundation pit
Width is larger, reaches 64m, foundation depth 5.8m, and using frame shear wall structure, it is stagnant that place groundwater type includes upper strata
Water and porous confined groundwater.The main preservation of perched water mainly receives Atmospheric precipitation and earth's surface aproll in artificial miscellaneous fill layer
Infiltration supply, no unified table, water and season, periphery Escape condition are in close relations.Artesian water and surface water and region
Pressure-bearing aqueous systems close relation, water are enriched, and artesian head is 5~7m.
As shown in the figure, big width base pit stand construction is included outside support pile 1 in the case of artesian water provided by the invention
Side sets water-stop curtain 2, and 2 depth of water-stop curtain is 28m, and using three axis cement mixing pile water stopping curtains 2, cement mixing pile uses
Three rows.The inner side of support pile 1 is broken ground to be reinforced using high pressure water mud, and reinforcement depth is excavation of foundation pit depth 1 again to 1.2
Times, reinforcing width is 1~1.5m.Supporting point using engineering pile 5 as supporting beam 6, makes supporting beam 6 become continuous beam.To in advance should
Power reinforcing bar carries out electric heat prestressing.
The top of support pile 1 sets Guan Liang 4, and 4 concrete strength of Guan Liang is C35, and 4 height of Guan Liang is 900mm, 6 He of supporting beam
Engineering pile 5 is coupled, and 5 reinforcing bar of engineering pile is stretched into after supporting beam 6 to bend and anchored at a right angle, and anchorage length is 40 times of engineering piles 5
Bar diameter, support pile 1 becomes two hold-down supports of supporting beam 6, and engineering pile 5 becomes the bearing support of supporting beam 6, support
Beam 6 becomes beam structure.Supporting beam 6 uses deformed bar 7, and deformed bar 7 uses broken line tensioning, and broken line point is arranged on
2/3 position of 1/3 and single span of single span in beam structure.Deformed bar 7 is fixed on billet 9 by anchoring piece 10.
The oblique section of middle part of deformed bar 7 sets branch ejection device 8, and oblique section of angle is highly controlled by branch ejection device 8.Branch
8 top surface of ejection device does in the arc-shaped, the poly- trifluoro-ethylene plate of 1 5mm thickness of stickup in the cambered surface of branch ejection device 8, to reduce branch
Frictional resistance between ejection device 8 and deformed bar 7.
Vent is arranged there are artesian aquifer in place in the range of artesian water, and a vent is arranged per 12m along foundation pit,
The a diameter of 450mm of vent, vent include marine riser 11, filter pipe 12, sediment tube 13, marine riser 11, filter pipe 12, precipitation
13 diameter of pipe is identical, a diameter of 250mm.Marine riser 11, filter pipe 12, sediment tube 13 use pipe of concrete, concrete tube wall
Thickness is 30mm, and the outside of marine riser 11 sets clay 14, and the outside of marine riser 11 sets ball sealer in the range of 11 bottom 0.6m of marine riser
15 are used for water proof, and marine riser 11 is below filter pipe 12, and filter pipe 12 is arranged on artesian water position, is dug on 12 tube wall of filter pipe
Aperture is to intake, hole diameter 4mm, percent opening 18%, and 12 outer wall of filter pipe parcel strainer 16, the outside of strainer 16 sets stone
Bits 17 are used for drainage, 17 a diameter of 2~4mm of aggregate chips, and filter pipe 12 is below sediment tube 13, and 13 length of sediment tube is 1.1m.It is close
Blocking 15 is made of rubber, is inflated ball sealer 15 before placing, is put into vent, it is the water surface floated in vent
On.Then start to put clay 14, ball sealer 15 can be depressed into 11 bottom of marine riser by clay 14, it is ensured that drainage layer water is not upward
Infiltration.
Construction procedure includes：
(1) construction work stake 5
The engineering pile 5 for shelving supporting beam 6 constructs to 6 bottom absolute altitude of supporting beam, Other Engineering stake 5 and constructs to basement bottom board bottom
Absolute altitude.
(2) construction supporting stake 1
Support pile 1 uses large diameter bored pile, and cast-in-situ bored pile deposit control is within 15cm.
(3) construction water-stop curtain 2
(4) construction soil cement stabilization zone 3
(5) Guan Liang 4 is poured
(6) Construction Support beam 6
6 deformed bar 7 of supporting beam is installed, branch ejection device 8 is set, is carried out for the first time before 6 concreting of supporting beam
Electrified regulation, electrified regulation 5min, establishes primary stress, and deformed bar 7 then is fixed on billet by anchoring piece 10
9, casting concrete after anchoring piece 10 is fixed, second of electrified regulation, electrified regulation are carried out in concrete initial set
10min, third time electrified regulation is carried out after 12 hours of concreting, establishes prestressing force, with anchoring piece 10 by prestressing force
Reinforcing bar 7 is fixed on billet 9.
(7) cut the earth
Earth excavation uses benzvalene form stage excavation, and earthwork lift height is 40~50mm, the neighbouring 2.5~3.5m scopes of foundation pit
The interior earthwork is first retained, and is deformed with making full use of the drag of periphery back-pressure soil to slow down support pile 1 into hole.Middle part is excavated first
Region, is then used in the lower subregion of support, symmetrical shoveling, the foundation pit earthwork in the range of 2.5~3.5m nearby is finally transferred to, by digging machine
It is loaded into dump truck and transports foundation pit.
In the excavation and support processes of whole foundation pit, uninterrupted observation has been carried out to 18 observation stations set in advance, its
The maximal displacement amount of middle measuring point is 6mm, and foundation pit does not occur gushing native phenomenon in the construction process all the time, meets that deep pit monitor is stablized
Needs, while also ensure that the safety of surrounding building and urban operating mechanism.
Claims (2)
1. base pit stand construction in the case of a kind of artesian water, it is characterized in that：Water-stop curtain is set on the outside of support pile, if field
There are artesian aquifer, water-stop curtain depth is 25~30m on ground, and using three axis cement mixing pile water stopping curtains, cement mixing pile is adopted
With three rows；Broken ground on the inside of support pile and reinforced using high pressure water mud, it is deep below the absolute altitude of foundation pit bottom, to reinforce to reinforce position
It is 1~1.5m to spend for 1~1.2 times of excavation of foundation pit depth, reinforcing width；Supporting point using engineering pile as supporting beam, makes support
Beam becomes continuous beam；
Supporting beam uses deformed bar, and deformed bar uses broken line tensioning, and broken line point is arranged on single span in beam structure
1/3 and single span 2/3 position；Deformed bar is fixed on billet by anchoring piece；Electric heat prestressing is carried out to deformed bar；
Vent is arranged in the range of artesian water, a vent is arranged along the every 10~15m of foundation pit, vent a diameter of 400~
600mm, vent include marine riser, filter pipe, sediment tube, and marine riser, filter pipe, precipitation pipe diameter are identical, a diameter of 200~
400mm, diameter are adjusted according to artesian head, when being less than or equal to 3m for artesian head, a diameter of 200mm, for holding
When pressure head is more than 3m and is less equal than 8m, a diameter of 250mm, when being more than 8m for artesian head and being less equal than 12m,
A diameter of 300mm, when being more than 12m for artesian head and being less equal than 15m, a diameter of 350mm, is more than for artesian head
During 15m, a diameter of 400mm；Marine riser, filter pipe, sediment tube use pipe of concrete or steel pipe, and pipe of concrete wall thickness is
30mm, thickness of steel pipe 6mm, set clay outside marine riser, are set in the range of 0.5~0.8m of water proof bottom of the tube outside marine riser
Ball sealer is used for water proof, is filter pipe below marine riser, and filter pipe is arranged on artesian water position, aperture is dug on drainage tube wall
With water inlet, hole diameter is 3~5mm, and percent opening is 15~20%, drainage pipe outer wall parcel strainer, and aggregate chips is set outside strainer
For drainage, a diameter of 2~4mm of aggregate chips, is sediment tube below filter pipe, precipitation length of tube is 1~1.2m；Ball sealer uses rubber
Glue makes, and inflates ball sealer before placing, is put into vent, it is on the water surface floated in vent；Then start to put viscous
Soil, clay can be depressed into ball sealer water proof bottom of the tube, it is ensured that drainage layer water does not permeate up.
2. base pit stand construction in the case of artesian water according to claim 1, it is characterized in that：Deformed bar is oblique
Section middle part sets branch ejection device, and oblique section of angle is highly controlled by branch ejection device；Branch ejection device top surface does in the arc-shaped, is propping up
The poly- trifluoro-ethylene plate of 1 5mm thickness is pasted in the cambered surface of ejection device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610442857.8A CN106120803B (en) | 2015-04-07 | 2015-04-07 | Base pit stand construction in the case of artesian water |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510189119.2A CN104790412B (en) | 2015-04-07 | 2015-04-07 | Big width foundation pit supporting construction in the case of artesian water |
| CN201610442857.8A CN106120803B (en) | 2015-04-07 | 2015-04-07 | Base pit stand construction in the case of artesian water |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510189119.2A Division CN104790412B (en) | 2015-04-07 | 2015-04-07 | Big width foundation pit supporting construction in the case of artesian water |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106120803A CN106120803A (en) | 2016-11-16 |
| CN106120803B true CN106120803B (en) | 2018-04-27 |
Family
ID=53555567
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610442745.2A Active CN106193047B (en) | 2015-04-07 | 2015-04-07 | Big width base pit stand construction |
| CN201510189119.2A Active CN104790412B (en) | 2015-04-07 | 2015-04-07 | Big width foundation pit supporting construction in the case of artesian water |
| CN201610442857.8A Expired - Fee Related CN106120803B (en) | 2015-04-07 | 2015-04-07 | Base pit stand construction in the case of artesian water |
Family Applications Before (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610442745.2A Active CN106193047B (en) | 2015-04-07 | 2015-04-07 | Big width base pit stand construction |
| CN201510189119.2A Active CN104790412B (en) | 2015-04-07 | 2015-04-07 | Big width foundation pit supporting construction in the case of artesian water |
Country Status (1)
| Country | Link |
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| CN (3) | CN106193047B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107503355B (en) * | 2017-07-20 | 2023-10-13 | 广东省建筑工程集团有限公司 | Externally-arranged rear-inserted steel type double-row pile foundation pit supporting system and construction method thereof |
| CN108035370A (en) * | 2017-12-18 | 2018-05-15 | 蔡婷婷 | A kind of well-point pipe and the foundation ditch construction method using the well-point pipe |
| CN110130356A (en) * | 2019-06-05 | 2019-08-16 | 汕头市建筑工程总公司 | A kind of muddy soft soil area basement cheats bottom monoblock type back cover construction method |
| CN110306557B (en) * | 2019-07-10 | 2021-04-13 | 武汉立诚岩土工程有限公司 | Earth excavation method based on basement deep foundation pit engineering |
| CN110374093B (en) * | 2019-07-16 | 2021-07-06 | 深圳市市政工程总公司 | Construction method of cast-in-situ bored pile for high-pressure-bearing fractured water stratum |
| CN114482016A (en) * | 2022-03-11 | 2022-05-13 | 中国十九冶集团有限公司 | Threaded steel pipe pile and deep foundation pit construction method |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20050010616A (en) * | 2003-07-21 | 2005-01-28 | 김정균 | transverse truss strutting method for construction and structure thereof |
| CN1948633A (en) * | 2005-10-14 | 2007-04-18 | 上海市第七建筑有限公司 | Tray type excarvating contrary construction method |
| CN100585094C (en) * | 2008-07-18 | 2010-01-27 | 华丰建设股份有限公司 | Construction method of circular deep foundation pit support |
| CN101736732B (en) * | 2009-12-17 | 2011-12-07 | 上海隧道工程股份有限公司 | Pressure and water reduction construction method of ultra-deep foundation pit confined water |
| CN101892668B (en) * | 2010-07-30 | 2012-07-25 | 中铁上海工程局第一工程有限公司 | Combined support-excavated geological erosion deep foundation pit and construction method thereof |
| CN102505695B (en) * | 2011-10-09 | 2014-12-03 | 浙江荣邦房地产开发有限公司 | Construction method for deep foundation pit of three-dimensional garage |
| CN202830936U (en) * | 2012-09-07 | 2013-03-27 | 中国建筑第六工程局有限公司 | Supporting structure of foundation pit |
| CN103255772A (en) * | 2013-05-27 | 2013-08-21 | 天津三建建筑工程有限公司 | Construction method optimizing deep foundation pit changing supporting construction sequences |
| CN103397655B (en) * | 2013-08-03 | 2015-11-25 | 朱奎 | Prestressing force Raft construction |
| CN103452121A (en) * | 2013-08-26 | 2013-12-18 | 中冶集团武汉勘察研究院有限公司 | Long pile and short pile combined single-row pile and horizontal internal support pile supporting structure and construction method thereof |
| CN203846504U (en) * | 2014-04-17 | 2014-09-24 | 南通海洲建设集团有限公司 | Supporting and reinforcing structure of deep foundation pit adjacent to high-tension iron tower foundation |
-
2015
- 2015-04-07 CN CN201610442745.2A patent/CN106193047B/en active Active
- 2015-04-07 CN CN201510189119.2A patent/CN104790412B/en active Active
- 2015-04-07 CN CN201610442857.8A patent/CN106120803B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN106193047B (en) | 2018-04-03 |
| CN106120803A (en) | 2016-11-16 |
| CN106193047A (en) | 2016-12-07 |
| CN104790412B (en) | 2017-03-01 |
| CN104790412A (en) | 2015-07-22 |
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