CN106958247B - Basement annular brace support system - Google Patents
Basement annular brace support system Download PDFInfo
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- CN106958247B CN106958247B CN201710189850.4A CN201710189850A CN106958247B CN 106958247 B CN106958247 B CN 106958247B CN 201710189850 A CN201710189850 A CN 201710189850A CN 106958247 B CN106958247 B CN 106958247B
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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
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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
- E02D19/10—Restraining of underground water by lowering level of ground water
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- 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
- E02D19/16—Restraining of underground water by damming or interrupting the passage of underground water by placing or applying sealing substances
-
- 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
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- 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
- E02D31/04—Watertight packings for use under hydraulic pressure
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2200/00—Geometrical or physical properties
- E02D2200/16—Shapes
- E02D2200/1607—Shapes round, e.g. circle
- E02D2200/1621—Shapes round, e.g. circle made from multiple elements
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2250/00—Production methods
- E02D2250/0007—Production methods using a mold
-
- 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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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2300/00—Materials
- E02D2300/0026—Metals
- E02D2300/0029—Steel; Iron
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Structural Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Hydrology & Water Resources (AREA)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
The invention discloses a kind of basement annular brace support systems, it is characterized in that setting twice support system, first of support is arranged at the top of basement, second support is arranged in the middle part of basement, first of support annular brace makes truss structure, and second support system uses beam type annular brace；Four corners position building enclosure and annular brace top support structure make concrete slab, one layer of annular outer support is 1.5~3m with a distance from enclosure wall, setting branch is shored between one layer of annular outer support and enclosure wall, concrete truss web member, one layer of circular inner support and one layer of annular outer support following settings support column are set between one layer of annular outer support and one layer of circular inner support.
Description
Technical field
The present invention relates to a kind of annular brace support systems, more particularly to basement annular brace support system.
Background technology
In basement support system, inner support supporting construction has the characteristics that safe and reliable, economical rationality, in foundation pit work
It is used widely in journey.But it is conventional that the inner support that support mode is arranged makes the construction of basement earth excavation and underground structure
At great inconvenience, the consequences such as construction period extension, less economical are generated.The conventional branch to supportting mode is substituted using annular brace
Protection structure system can obtain higher economic benefit.But annular brace especially multiple tracks branch when basement excavates deeper
When support, lateral pressure suffered by first of annular brace would generally exceed concrete compressive ultimate strength, and annular brace will appear position
Move past big, the bad phenomenons such as annular brace concrete generation cracking.
Invention content
The present invention is to provide a kind of basement annular brace support system, solves problem of the prior art.
For this purpose, twice support system is arranged in the present invention, first of support is arranged at the top of basement, second support setting
In the middle part of basement, due to be supported on for first basement be excavated to bottom absolute altitude position stress can be very big, according to first
Annular brace is made truss structure by the loading characteristic supportted in construction, and this rigidity of structure is larger, and non-deformability is strong, and
The stress of second support system can significantly reduce, so just using beam type annular brace merely.In view of corner stress can answer
Power is concentrated, therefore four corners position building enclosure and annular brace top support structure are made concrete slab, to reinforce corner rigidity
Resistance to deformation.
Enclosure wall width is 60~80mm, and depth is 2~3 times of basement cutting depth, concrete used by enclosure wall
For C30 or more, one layer of annular outer support is 1.5~3m with a distance from enclosure wall, and one layer of annular outer support width is 30cm, height
For 40~50cm, one layer of circular inner support is 1.2~1.6m from one layer of annular outer support distance, one layer of annular outer support with go along with sb. to guard him
Setting branch is shored between wall, and it is 30cm that branch, which shores width, is highly 40~50cm, and one layer of circular inner support width is 30cm, high
Degree is 40~50cm, and concrete truss web member, concrete truss are arranged between one layer of annular outer support and one layer of circular inner support
Web member width is 20cm, is highly 40~50cm, one layer of circular inner support and one layer of annular outer support following settings support column, branch
Dagger uses coagulation column or steel column, support column to be arranged on engineering pile as possible, otherwise support column following settings temporary support
Stake.
Two layers of annular brace and enclosure wall top support structure are shored and are combined using concrete slab and branch, basement long side direction
Concrete slab is set in 1/4 length range and 1/3 length range of short side direction, and basement medium position setting branch is shored, two layers
Branch, which is shored, shores that projected position is identical with one layer of branch, the support column phase of the support column and one layer of annular outer support of two layers of annular brace
Together.
One layer of branch care-supporting stretches into inside enclosure wall, is formed and is rigidly connected with enclosure wall, two layers of branch care-supporting and enclosure wall outside
Reserved steel bar welded, articulated structure is formed, the characteristics of to adapt to building enclosure.According to test situation, one layer of branch care-supporting
After forming rigid connection with enclosure wall, annular brace deformation is uniformly and deformation is relatively small, and enclosure wall deformation is relatively large；Two
After layer branch care-supporting forms articulated structure with enclosure wall, deformation is relatively large, but enclosure wall deformation is relatively small.
Construction procedure includes：
(1) enclosure wall is constructed.
Enclosure wall will not only carry out bank protection, also prevent from seeping water, and enclosure wall doubles as outer wall of basement.Enclosure wall construction uses
Empty stomach template, empty stomach template sinks to stratum by the vertical exciting force of the vertical generation of reciprocating vibration of vibration hammer, immediately into empty stomach
Slurries are filled, when vibration dip mould is promoted, slurries out of the injection of template lower end slot, have first sunk to stratum under the effect of gravity
Template sinks to the guide plate of template after becoming, the effect that plate plate interlocks is presented in two pieces of templates, ensure that each veneer body is put down at one
Wall is closely integrated into face.
Construction technology includes：
1) preformed groove is excavated；
2) prebored hole；
In the junction prebored hole of two pieces of templates, a diameter of 90~110cm of prebored hole；
3) vibration dip mould；
Start vibration hammer, first piece of template is sunk in stratum, projected depth is reached, then by second piece of template along construction axis
Line first piece of front side with first piece of template closely side by side, using first piece of template as guide plate, sink to stratum and reach projected depth；
4) perfusion promotes first piece of template；
Slurry is perfused into first piece of template, is then perfused when being promoted, until extracting ground, slurry stays in slot,
After perfusion is promoted, slurry to be kept to reach wall top design altitude；
5) template is sunk to again；
Using second piece of template as guide plate, sinks to stratum and reach projected depth, Reperfu- sion promotes second piece of template；More than pressing
Program cycle construction, you can complete enclosure wall.
Traditional handicraft is using fluting of cutting the earth, mud off, scarfing cinder, pours underwater concrete, processing seam series at present
Process, is easy to collapse hole when slotting in permeable stratum, enclosure wall is often not achieved thickness and wall phenomenon of breaking occurs.And the present invention with
Empty stomach template is sunk to soil layer by powerful vertical exciting force, and template and slurries play the role of retaining wall, in work progress not only not
Soil stress rationally release, and during vibration dip mould, by its soil at both sides dense extrusion, improve impermeability.Due to this
Invention is in original soil body by template squeezing action in lower completion.And side carries mould marginal not slurry in promoting template procedure, slurries are from mould
In board bottom production note people's slot, column pressure is starched in addition and is more than soil body lateral pressure, therefore is not in contracting wall and wall phenomenon of collapsing.
(2) support column is constructed.
Such as without engineering pile below support column, support column is inserted into temporary support pile after temporary support pile of first constructing.If there is work
Journey stake, is directly inserted into temporary support pile by support column.
(3) one layer of annular outer support, one layer of circular inner support, concrete truss web member, one layer of branch is done to shore.
(4) it cuts the earth to two layers of annular brace bottom absolute altitude position, does two layers of annular brace, enclosure wall is in two layers of support zone office
Concrete is peeled off in portion, and reserved steel bar is welded outside exposed main reinforcement, then casting concrete plate, finally do two layers of branch and shore.
(5) it cuts the earth to 10cm below the absolute altitude of basement bottom board bottom, first does plain concrete cushion layer, then pour basement bottom board and mix
Solidifying soil.
It is right for the big position of water yield using the thin stifled technical solution being combined when pouring basement bottom board construction
It is small in water yield, the small position of water pressure using the method blocked by force, pour smash plain concrete cushion layer when, use in subrange
The casting and compacting of concrete of accelerator is mixed, concrete is solidified in 1~2min.In the case of water yield is big, led with plastic flexible pipe
In water to catch pit, pours and smash and while reaching 80% intensity re-closed catch pit when cushion cap bottom plate.The closure of catch pit is by following
It carries out：Water is concentrated in steel pipe, diameter of steel tube 50mm, steel pipe inner wall has screw thread；Water pipe is closed in screw head precession steel pipe,
Pour the concrete in the reserved hole of bottom plate.The inner wall setting groove in reserved hole is used for sealing, and rear pouring concrete mixes U EA swelling agents, really
Protect the good combination of new-old concrete.
(6) carry out explosion is shored to two layers of annular brace, concrete slab, two layers of branch, support column is removed after explosion.
Using static blasting, the expansive force of the used expanding material of static blasting is more than 30MPa, static blasting reserving hole
A diameter of 30~40mm, reserving hole spacing control for 0.3~0.4m, and end reserving hole indwelling position is away from structure floor
150mm~200mm, hole area is no more than area of section 10% on member cross-sections；Reinforced concrete member in reserving hole
Main reinforcement or stirrup cut off, it is ensured that the binding force of reinforcing bar does not influence demolition effect.
(7) two layers of basement roof are poured.
(8) carry out explosion is shored to one layer of annular outer support, one layer of circular inner support, concrete truss web member, one layer of branch.
(9) one layer of basement roof is poured.
Description of the drawings
Fig. 1 is one layer of basement annular brace supporting construction schematic diagram, and Fig. 2 is two layers of basement annular brace supporting construction
Schematic diagram.
In each attached drawing：1, enclosure wall, 2, one layers of branch are shored, 3, one layers of annular outer support, 4, one layers of circular inner support, and 5, mixed
Solidifying soil truss web, 6, support column, 7, two layers of annular brace, 8, concrete slab, 9, two layers of branch are shored.
Specific implementation mode
Certain engineering is 18 layers of building, is frame cylinder shear wall structure, and basement cutting depth is 7.2m, and basement is irregular
Shape, engineering pile are cast-in-situ bored pile, and cast-in-situ bored pile depth is 42m.
Twice support system is arranged in the present embodiment, and first of support is arranged at the top of basement, and second support setting exists
In the middle part of basement, first of support annular brace makes truss structure, and second support system uses beam type annular brace.Four
Angular position building enclosure and annular brace top support structure make concrete slab 8.
1 width of enclosure wall is 70mm, and depth is 2.5 times of basement cutting depth, and concrete used by enclosure wall 1 is
C30, one layer of annular outer support 3 are 2m with a distance from enclosure wall 1, and one layer of 3 width of annular outer support is 30cm, is highly 45cm,
One layer of circular inner support 4 is 1.4m with a distance from one layer of annular outer support 3, and branch is arranged between one layer of annular outer support 3 and enclosure wall 1
It shores, it is 30cm that branch, which shores width, is highly 45cm, and one layer of 4 width of circular inner support is 30cm, is highly 45cm, one layer of ring
Concrete truss web member 5 is set between shape outer support 3 and one layer of circular inner support 4,5 width of concrete truss web member is 20cm,
Height is 45cm, and one layer of circular inner support 4 and one layer of 3 following settings support column 6 of annular outer support, support column 6 use coagulation column
Or steel column, support column 6 are arranged on engineering pile as possible, otherwise 6 following settings temporary support pile of support column.
Two layers of annular brace 7 and 1 top support structure of enclosure wall are shored and are combined using concrete slab 8 and branch, basement long side
Concrete slab is set in 1/4 length range of direction and 1/3 length range of short side direction, basement medium position setting branch is shored,
Two layers of branch shore 9 and shore that 2 projected positions are identical with one layer of branch, the support column 6 of two layers of annular brace 7 and one layer of annular outer support 3
Support column 6 it is identical.
One layer of branch care-supporting stretches into inside enclosure wall 1, is formed and is rigidly connected with enclosure wall 1, outside two layers of branch care-supporting and enclosure wall 1
The reserved steel bar in face is welded, and articulated structure is formed.
Construction procedure includes：
(1) enclosure wall 1 is constructed.
The construction of enclosure wall 1 uses empty stomach template, the vertical exciting that empty stomach template passes through the vertical generation of reciprocating vibration of vibration hammer
Power sinks to stratum, fills slurries into empty stomach immediately, and when vibration dip mould is promoted, slurries are noted from template lower end under the effect of gravity
Entering in slot, the first template for having sunk to stratum sinks to the guide plate of template after becoming, the effect that plate plate interlocks is presented in two pieces of templates,
It ensure that each veneer body is closely integrated into wall in a plane.
Construction technology includes：
1) preformed groove is excavated；
2) prebored hole；
In the junction prebored hole of two pieces of templates, a diameter of 100cm of prebored hole；
3) vibration dip mould；
Start vibration hammer, first piece of template is sunk in stratum, projected depth is reached, then by second piece of template along construction axis
Line first piece of front side with first piece of template closely side by side, using first piece of template as guide plate, sink to stratum and reach projected depth；
4) perfusion promotes first piece of template；
Slurry is perfused into first piece of template, is then perfused when being promoted, until extracting ground, slurry stays in slot,
After perfusion is promoted, slurry to be kept to reach wall top design altitude；
5) template is sunk to again；
Using second piece of template as guide plate, sinks to stratum and reach projected depth, Reperfu- sion promotes second piece of template；More than pressing
Program cycle construction, you can complete enclosure wall 1.
(2) support column 6 is constructed.
Support column 6 is inserted into temporary support pile by support column 6 below such as without engineering pile after temporary support pile of first constructing.If having
Support column 6 is directly inserted into temporary support pile by engineering pile.
(3) one layer of annular outer support, 3, one layers of circular inner support 4 are done, 5, one layers of branch of concrete truss web member shore 2.
(4) it cuts the earth to two layers of 7 bottom absolute altitude position of annular brace, does two layers of annular brace 7, enclosure wall 1 is in two layers of support portion
Position localized delamination concrete, reserved steel bar is welded outside exposed main reinforcement, then casting concrete plate 8, finally do two layers of support top
Support 9.
(5) it cuts the earth to 10cm below the absolute altitude of basement bottom board bottom, first does plain concrete cushion layer, then pour basement bottom board and mix
Solidifying soil.
It is right for the big position of water yield using the thin stifled technical solution being combined when pouring basement bottom board construction
It is small in water yield, the small position of water pressure using the method blocked by force, pour smash plain concrete cushion layer when, use in subrange
The casting and compacting of concrete of accelerator is mixed, concrete is solidified in 1~2min.In the case of water yield is big, led with plastic flexible pipe
In water to catch pit, pours and smash and while reaching 80% intensity re-closed catch pit when cushion cap bottom plate.The closure of catch pit is by following
It carries out：Water is concentrated in steel pipe, diameter of steel tube 50mm, steel pipe inner wall has screw thread；Water pipe is closed in screw head precession steel pipe,
Pour the concrete in the reserved hole of bottom plate.The inner wall setting groove in reserved hole is used for sealing, and rear pouring concrete mixes UEA swelling agents, really
Protect the good combination of new-old concrete.
(6) 9 carry out explosions are shored to 8, two layers of two layers of annular brace 7, concrete slab branch, support column is removed after explosion
6。
Using static blasting, the expansive force of the used expanding material of static blasting is 35MPa, and static blasting reserving hole is straight
Diameter is 35mm, and reserving hole spacing controls for 0.3~0.4m, and end reserving hole indwelling position is away from structure floor 200mm, component
Hole area is no more than area of section 10% on cross section；The main reinforcement of reinforced concrete member or stirrup are cut in reserving hole
It is disconnected, it is ensured that the binding force of reinforcing bar does not influence demolition effect.
(7) two layers of basement roof are poured.
(8) 2 progress are shored to 5, one layers of one layer of annular outer support, 3, one layers of circular inner support 4, concrete truss web member branch
Explosion.
(9) one layer of basement roof is poured.
It is analyzed by computer simulation emulation, this structure and other support systems is compared.The first situation is to adopt
With the present embodiment, the second situation is to use inner support merely, the third situation is one layer two layers and uses annular brace.Table 1 is
Different support system displacements and mechanical property compare, and find that the supporting maximum horizontal displacement of the present embodiment is far smaller than second in table
Kind situation and the third situation, respectively the 38.6% of the second situation are the 57.9% of the second situation.The present embodiment is most
Big axle power substantially reduces, respectively the 59.6% of the second situation, is the 79.9% of the second situation.The maximum of the present embodiment is curved
Square substantially reduces, respectively the 62.8% of the second situation, is the 79.0% of the second situation.
The different support system displacements of table 1 and mechanical property comparison
Through the Site Detection basement, stable structure, supporting displacement are no more than 11mm, support beam structure in the construction process
Stablize, phenomenon without exception occurs.
Claims (1)
1. a kind of basement annular brace support system, it is characterized in that setting twice support system, first of support is arranged on ground
Lower ceiling portion, second support are arranged in the middle part of basement, and the annular brace of first of support makes truss structure, second
Support system uses beam type annular brace；Four corners position building enclosure and annular brace top support structure make concrete slab；
Enclosure wall width is 60~80mm, and depth is 2~3 times of basement cutting depth, and concrete used by enclosure wall is C30
More than, the annular outer support of first of support is 1.5~3m, the annular outer support width of first of support with a distance from enclosure wall
It is highly 40~50cm for 30cm, is 1.2 with a distance from the annular outer support that first of circular inner support supported is supported from first
~1.6m, setting branch is shored between the annular outer support and enclosure wall of first of support, and it is 30cm that branch, which shores width, is highly 40
The circular inner support width of~50cm, first of support are 30cm, are highly 40~50cm, the annular outer support of first of support
Concrete truss web member is set between the circular inner support of first of support, and concrete truss web member width is 20cm, height
For 40~50cm, the annular outer support following settings support column of the circular inner support and first of support of first of support, support
Column uses coagulation column or steel column, support column to be arranged on engineering pile as possible, otherwise support column following settings temporary support pile；
The annular brace and enclosure wall top support structure of second support are shored and are combined using concrete slab and branch, basement long side
Concrete slab is set in 1/4 length range of direction and 1/3 length range of short side direction, basement medium position setting branch is shored,
Two layers of branch, which are shored, shores that projected position is identical with one layer of branch, the support column of the annular brace of second support and first of support
The support column of annular outer support is identical；
Enclosure wall will not only carry out bank protection, also prevent from seeping water, and enclosure wall doubles as outer wall of basement；
Enclosure wall construction technology includes：
1) preformed groove is excavated；
2) prebored hole；
In the junction prebored hole of two pieces of templates, a diameter of 90~110cm of prebored hole；
3) vibration dip mould；
Start vibration hammer, first piece of template is sunk in stratum, projected depth is reached, then second piece of template exists along construction axis
First piece of front side closely side by side, using first piece of template as guide plate, sinks to stratum and reaches projected depth with first piece of template；
4) perfusion promotes first piece of template；
Slurry is perfused into first piece of template, is then perfused when being promoted, until extracting ground, slurry stays in slot, is perfused
After promotion, slurry to be kept to reach wall top design altitude；
5) template is sunk to again；
Using second piece of template as guide plate, sinks to stratum and reach projected depth, Reperfu- sion promotes second piece of template；By procedure above
Cycle construction, you can complete enclosure wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710189850.4A CN106958247B (en) | 2015-05-22 | 2015-05-22 | Basement annular brace support system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710189850.4A CN106958247B (en) | 2015-05-22 | 2015-05-22 | Basement annular brace support system |
| CN201510284234.8A CN105019553B (en) | 2015-05-22 | 2015-05-22 | Basement annular brace supporting construction |
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| CN201510284234.8A Division CN105019553B (en) | 2015-05-22 | 2015-05-22 | Basement annular brace supporting construction |
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| CN201510284234.8A Active CN105019553B (en) | 2015-05-22 | 2015-05-22 | Basement annular brace supporting construction |
| CN201710189946.0A Active CN106894420B (en) | 2015-05-22 | 2015-05-22 | Basement construction method for supporting |
| CN201710189849.1A Active CN106836240B (en) | 2015-05-22 | 2015-05-22 | Basement annular brace construction method for supporting |
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| CN201710189946.0A Active CN106894420B (en) | 2015-05-22 | 2015-05-22 | Basement construction method for supporting |
| CN201710189849.1A Active CN106836240B (en) | 2015-05-22 | 2015-05-22 | Basement annular brace construction method for supporting |
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| CN108867661B (en) * | 2017-09-15 | 2020-10-09 | 叶长青 | Foundation pit supporting construction method |
| CN108442508B (en) * | 2018-02-24 | 2023-07-14 | 广州大学 | Double-constraint ring frame structure system |
| CN108560582B (en) * | 2018-04-09 | 2023-08-29 | 成都利拓重工机械有限公司 | Movable support shield for urban pipe bag construction and limiting hinge thereof |
| CN108487261A (en) * | 2018-04-10 | 2018-09-04 | 江西科技学院 | A kind of arch steel structure support |
| CN109680722B (en) * | 2019-01-24 | 2020-10-20 | 江苏南通三建集团股份有限公司 | Construction method for directly reserving external building access port on basement outer wall |
| CN113550329A (en) * | 2021-09-03 | 2021-10-26 | 朱彦达 | Multilayer basement supporting structure and supporting construction method |
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| JPH09264024A (en) * | 1996-03-29 | 1997-10-07 | Kawasaki Steel Corp | Retaining or coffering method |
| FR2822172B1 (en) * | 2001-03-13 | 2003-12-05 | Spie Fond S | DEVICE FOR SHAPING A WALL FOR BRIDGE HOLDING AND USE OF SUCH A DEVICE |
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- 2015-05-22 CN CN201710189850.4A patent/CN106958247B/en active Active
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Also Published As
| Publication number | Publication date |
|---|---|
| CN105019553A (en) | 2015-11-04 |
| CN106836240B (en) | 2018-08-10 |
| CN106836240A (en) | 2017-06-13 |
| CN106894420A (en) | 2017-06-27 |
| CN106958247A (en) | 2017-07-18 |
| CN105019553B (en) | 2017-07-28 |
| CN106894420B (en) | 2018-08-10 |
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