CN211312530U - Arched inner support of deep foundation pit - Google Patents
Arched inner support of deep foundation pit Download PDFInfo
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- CN211312530U CN211312530U CN201920756340.5U CN201920756340U CN211312530U CN 211312530 U CN211312530 U CN 211312530U CN 201920756340 U CN201920756340 U CN 201920756340U CN 211312530 U CN211312530 U CN 211312530U
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Abstract
The utility model relates to an interior support of arch of deep basal pit, the specially adapted foundation ditch degree of depth is great, and the groundwater yield is abundant, and the anchor rope construction degree of difficulty is big, easily takes place creep or the foundation ditch of the unable anchor rope of constructing of peripheral underground space restriction and supports the top mesh. The arch inner support consists of a fender post or a wall, a crown beam, a support and an arch steel structure. The utility model provides a pair of support in arch is to supporting the influence that needs to set up the support column to follow-up construction in the tradition, adopts arch or the trapezium structure that does not occupy underground structure construction space, utilizes the horizontal component that structure self produced in support department to support bearing structure, and bearing structure does not receive the influence of foundation ditch shape, the degree of depth, can establish the support at the optional position, and support material repeatedly usable, but and the production of modularization equipment.
Description
Technical Field
The utility model relates to an interior support of arch of deep basal pit, the horizontal component that utilizes the arch foot in this kind of arch supports and reaches the supporting role to envelope, and can carry out one or multichannel at envelope's arbitrary elevation and support, avoided the large-span level to support and need set up bearing pile (stand) and the trouble and the time limit for a project that delay for the main part construction causes inside the foundation ditch, simultaneously, the arch supports and adopts the assembled component, and reuse practices thrift the cost.
Background
With the rapid development of economy, infrastructure, particularly high-rise and super high-rise buildings in cities, are increasing, reasonable utilization of underground space is considered, and more foundation pit projects, particularly deep foundation pits, are increasing.
The foundation pit engineering construction technology is continuously innovated and perfected, and the current deep foundation pit construction technology mainly comprises an anchor-pull type structure, a support type structure and the like. Most of deep foundation pit projects are located in busy sections in cities, the surrounding environment of the foundation pit is complex, the overall stability and safety of the deep foundation pit projects need to be considered, and the safety and stability of structures such as roads, buildings, underground pipe networks and the like around the foundation pit need to be considered. Meanwhile, along with the national planning of underground space, the influence of factors such as protection of underground water resources and the like, the anchor-pull type structure is applied to basements with buildings around foundation pits, and when the effective anchoring length of an anchor (cable) rod is insufficient in the process of underground structures, the anchor rod (cable) cannot be adopted. In addition, when anchor rod (cable) construction causes damage to buildings around the foundation pit and violates urban underground space planning, the anchor rod (cable) construction cannot be adopted. In offshore or coastal areas of China, geological conditions are complex and are mostly saturated soft soil, and due to the fact that the construction difficulty of the anchor rod (cable) is high, the anchor rod (cable) is easy to creep, the construction quality is extremely difficult to control, and an anchor-pull type structure cannot be adopted in an area sensitive to settlement caused by construction precipitation.
The support type structure mainly comprises a steel support, a horizontal reinforced concrete support and the like at present, wherein the reinforced concrete support is a structural system formed by casting in a foundation pit in situ, the manufacture of the support type structure needs long-time maintenance, the support type structure cannot play a role immediately after the manufacture, and the next operation can be carried out after the strength of concrete reaches a certain degree. In addition, the demolition workload is huge, the supporting materials cannot be used repeatedly, a large amount of construction waste is generated, and the expected effect cannot be achieved in the aspects of economy and construction speed. Especially, in the foundation pit with a large span, in order to ensure the stability of the structure, a support upright post still needs to be arranged in the foundation pit, and the influence on the foundation construction needs to be considered when the support upright post is arranged. When earth excavation and three-dimensional structure construction are carried out, the influence of the stand columns still needs to be considered, and the stand columns still need to be dismantled after supporting is completed. In addition, the traditional inner supports are plane supports, and the supporting members are criss-cross in the foundation pit, so that adverse effects are brought to subsequent earth excavation.
Therefore, the anchor-pull type structure and the support type structure supporting method have limitations in the aspects of continuous improvement of the underground space, technical feasibility, economical efficiency and the like of the state under special conditions, such as special environments around foundation pits, complex geological conditions of saturated cohesive soil in offshore or coastal areas and the like. Therefore, the arch or trapezoid inner support structure does not occupy the construction space of the underground structure, and the application range of the support structure is wide.
SUMMERY OF THE UTILITY MODEL
To the above-mentioned defect of prior art, the utility model provides a pair of do not occupy interior support of arch of underground structure construction space, arch steel structural system adopts arch or trapezium structure, utilizes the horizontal component that structure self produced in support department to support envelope.
In order to achieve the above object, the utility model provides a following technical scheme:
the utility model provides an interior support of arch of deep basal pit comprises fender pile or wall, guan liang, support and arch steel construction, guan liang passes through the support and sets up in fender pile or wall top, the arch steel construction is located on guanliang.
The guard piles or the walls are combined with the waterproof curtain for supporting, and the guard piles or the walls are used as soil retaining structures, bear the pressure of soil outside the foundation pit and are used as stress transfer structures of the supporting members.
The utility model has the advantages that: the utility model provides a pair of do not occupy interior arch support of underground structure construction space is to supporting in the tradition and need to set up the influence of support column to follow-up construction, adopts the arch or the trapezium structure that do not occupy underground space, utilizes the horizontal component that structure self produced in support department to support envelope, and bearing structure does not receive the influence of foundation ditch shape, degree of depth, can establish the support in the optional position, and support material repeatedly usable, but and the production of modularization equipment.
For a better understanding of the features and technical content of the present invention, reference should be made to the following detailed description of the present invention and accompanying drawings, which are provided for the purpose of illustration and description and are not intended to limit the present invention.
Drawings
The technical solution and other advantages of the present invention will become apparent from the following detailed description of the embodiments of the present invention with reference to the accompanying drawings.
Fig. 1 is a schematic structural view of the arched inner support of the deep foundation pit.
Detailed Description
To further illustrate the technical means and effects of the present invention, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings.
Referring to fig. 1, an arch-shaped inner support of a deep foundation pit is composed of a fender post or wall 1, a crown beam 2, a support 3 and an arch-shaped steel structure 4, wherein the crown beam 2 is arranged at the top of the fender post or wall 1 through the support 3, and the arch-shaped steel structure 4 is arranged on the crown beam 2.
Further, the fender pile or the wall 1 and the waterproof curtain are jointly supported, the fender pile or the wall 1 serves as a soil retaining structure, bears the pressure of soil outside the foundation pit, and serves as a stress transmission structure of the supporting member.
The utility model provides a pair of support in arch of deep basal pit is to supporting the influence that needs to set up the support column to follow-up construction in the tradition, adopt arch or the trapezium structure that does not occupy underground structure construction space, utilize the horizontal component that structure self produced in support department to support bearing structure, bearing structure does not receive the foundation ditch shape, the influence of the degree of depth, can establish the support at the optional position, supporting material repeatedly usable, but and modular assembly production, the reduction of erection time, the cost is saved, and stronger popularization and application value has.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (1)
1. The utility model provides an interior support of arch of deep basal pit, its characterized in that comprises fender pile or wall, guan liang, support and arch steel construction, guan liang passes through the support and sets up in fender pile or wall top, the arch steel construction is located on guanliang, fender pile or wall and stagnant water curtain are jointly strutted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920756340.5U CN211312530U (en) | 2019-05-20 | 2019-05-20 | Arched inner support of deep foundation pit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920756340.5U CN211312530U (en) | 2019-05-20 | 2019-05-20 | Arched inner support of deep foundation pit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211312530U true CN211312530U (en) | 2020-08-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920756340.5U Active CN211312530U (en) | 2019-05-20 | 2019-05-20 | Arched inner support of deep foundation pit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023024348A1 (en) * | 2021-08-26 | 2023-03-02 | 中冶建筑研究总院（深圳）有限公司 | Recyclable prestressed support system and construction method |
-
2019
- 2019-05-20 CN CN201920756340.5U patent/CN211312530U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023024348A1 (en) * | 2021-08-26 | 2023-03-02 | 中冶建筑研究总院（深圳）有限公司 | Recyclable prestressed support system and construction method |
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