Foundation pit prefabricated support structure and support construction method

A supporting structure and construction method technology, which is applied in the direction of foundation structure engineering, excavation, construction, etc., can solve the problems of foundation pit support such as troublesome handling and poor anti-deformation ability, and achieve convenient construction, strong anti-deformation ability, and elimination of foundation pits Paradoxical Effects of Width Variations

Active Publication Date: 2022-07-22
CHINA RAILWAY SIYUAN SURVEY & DESIGN GRP
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Problems solved by technology

[0003] The object of the present invention is to provide an assembled support structure and a support construction method for foundation pits, aiming to solve the problems of troublesome handling and poor deformation resistance of existing foundation pit supports

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  • Foundation pit prefabricated support structure and support construction method
  • Foundation pit prefabricated support structure and support construction method
  • Foundation pit prefabricated support structure and support construction method

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Embodiment Construction

[0038] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0039] see Figure 1-5 , the embodiment of the present invention provides a foundation pit assembled support structure, including a plurality of prefabricated support segments 1, and the prefabricated support segments 1 can be spliced ​​with each other to form a prefabricated support structure, which is mainly used to support the inner crown beam 2 of the foundation pit Or the waist beam, the crown beam 2 is taken as an example belo...

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Abstract

The invention provides a foundation pit assembled support structure, which includes a plurality of prefabricated support segments, and also includes a transition piece and a tensioning assembly, each of the prefabricated support segments includes a support segment and two end plates, two of which are The end plates are respectively located at two end positions of the support section, two adjacent prefabricated support sections are spliced ​​by the end plates, and the prefabricated support section at the end position has a seal. The sealing plate is detachably connected to the corresponding end plate, and the tensioning assembly is located outside the cast-in-place concrete; a support construction method is also provided, which adopts the above-mentioned assembled support structure. In the present invention, the prefabricated support structure is formed by splicing a plurality of prefabricated support segments, the integrity is good, it can withstand compressive stress, has strong deformation resistance, and can be recycled and reused, which is environmentally friendly and convenient for construction.

Description

technical field [0001] The invention relates to foundation pit construction, in particular to a foundation pit assembled support structure and a support construction method. Background technique [0002] At present, the enclosure structure of the foundation pit is mainly composed of retaining members and supports. The most common retaining members are bored piles and underground diaphragm walls. For the type of support used, the first support is mostly reinforced concrete support, and the rest are steel pipe supports (if the foundation pit is deep or the external environment is complicated, multiple concrete supports may also be installed), concrete supports and crown beams (waist beams) It forms a whole and has strong anti-deformation ability, which often becomes the last barrier to the instability and damage of the foundation pit. The reinforced concrete supports are mostly constructed with cast-in-place concrete. The construction process is complicated and the speed is s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D17/04
CPCE02D17/04
Inventor 徐军林欧阳冬徐政李成亮张建明刘习超江胜学刘轶向贤华王鹏王华兵周兵余行汪国良
Owner CHINA RAILWAY SIYUAN SURVEY & DESIGN GRP
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