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Foundation pit assembling type support structure and support construction method

A technology of support structure and construction method, which is applied in basic structure engineering, excavation, construction, etc., can solve the problems of foundation pit support, such as troublesome treatment, poor deformation resistance, etc., and achieves convenient construction, strong deformation resistance, and good integrity. Effect

Active Publication Date: 2020-07-10
CHINA RAILWAY SIYUAN SURVEY & DESIGN GRP
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  • Application Information

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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

Method used

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  • Foundation pit assembling type support structure and support construction method
  • Foundation pit assembling type support structure and support construction method
  • Foundation pit assembling type support structure and support construction method

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Embodiment Construction

[0038] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0039] see Figure 1-5 , an embodiment of the present invention provides an assembled support structure for a foundation pit, including a plurality of prefabricated support segments 1, and each prefabricated support segment 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 below, and a U-shaped stee...

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Abstract

The invention provides a foundation pit assembling type support structure. The support structure comprises multiple prefabricated support segments and further comprises a switching piece and a tensioning component, wherein each prefabricated support segment comprises a support section and two end plates, and the two end plates of each prefabricated support segment are located at two end positionsof the corresponding support section respectively; every two adjacent prefabricated support segments are spliced through the end plates, the prefabricated support segments located at the end positionsare provided with sealing plates, and the sealing plates are detachably connected with the corresponding end plates; and the tensioning component is located at the outer side of cast-in-place concrete. The invention further provides a support construction method. The assembling type support structure is adopted in the method. The assembling type support structure is formed by splicing the multiple prefabricated support segments, so that the integrity is good, the requirement for bearing compressive stress can be met, and non-deformability is strong; and the structure can be recovered to be used repeatedly and is environmentally friendly and convenient to construct.

Description

technical field [0001] The invention relates to foundation pit construction, in particular to an assembled support structure for a foundation pit and a support construction method. Background technique [0002] At present, the foundation pit enclosure structure is mainly composed of retaining components and supports, and the most common retaining components are bored piles and underground diaphragm walls. The type of support adopted is mostly reinforced concrete support for the first support, and steel pipe support for the rest (if the foundation pit is deep or the external environment is complicated, multiple concrete supports may also be set), the concrete support and the crown beam (waist beam) Formed as a whole, it has strong resistance to deformation and often becomes the last barrier to foundation pit instability and destruction. Reinforced concrete supports are mostly constructed with cast-in-place concrete. The construction process is complicated and slow, and the c...

Claims

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Application Information

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Patent Type & Authority Applications(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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