Supporting structure for subway foundation pit

Abstract

The invention discloses a supporting structure for a subway foundation pit. The supporting structure structurally comprises an adjusting bracket, a hydraulic cylinder connecting rod, a pushing column,a cross beam, a supporting plate, fillers and a fixed base, wherein a hydraulic device in the adjusting bracket and the rear end of the hydraulic cylinder connecting rod are nested with each other; the front end of the pushing column is welded and fixed into a middle groove of the cross beam; the cross beam is horizontally fixed to the rear end of the supporting plate; the supporting plate is tightly attached to the fillers; and the top of the fixed base is in interference fit with a bolt at the bottom of the adjusting bracket. According to the supporting structure for the subway foundation pit, the foundation pit is protected by using a hydraulic device as a supporting base; and meanwhile, an outer shell is used for protecting the hydraulic device, so that the service life can be prolonged, and the stability is greatly enhanced.

Description

technical field [0001] The invention relates to a support structure for a subway foundation pit, which belongs to the field of support structures. Background technique [0002] With the increasing scale of urban construction in our country, the foundation design of subways and high-rise buildings is getting deeper and deeper, and the requirements for deep foundation pit support are getting higher and higher, and there are more and more foundation pit excavation and support projects. The support technology has the characteristics of complex technology and strong comprehensiveness. It is closely related to many factors such as hydrogeological survey, support calculation, excavation operation mode, construction quality requirements, monitoring and site management. And adjacent buildings have a decisive influence, and deep foundation pit support projects are mostly temporary projects, the design institute will generally consider the safety, economy, convenience of the support st...

AI Technical Summary

Problems solved by technology

[0002] With the increasing scale of urban construction in our country, the foundation design of subways and high-rise buildings is getting deeper and deeper, and the requirements for deep foundation pit support are getting higher and higher, and there are more and more foundation pit excavation and support projects. The support technology has the characteristics of complex technology and strong comprehensiveness. It is closely related to many factors such as hydrogeological survey, support calculation, excavation operation mode, construction quality requirements, monitoring and site management. And adjacent buildings have a decisive influence, and deep foundation pit support projects are mostly temporary projects, the design institute will generally consider the safety, economy, convenience of the support structure and refer to the owner's opinion, and choose a reasonable However, in the existing technology, once the support of the foundation pit is not stable enough, it will easily cause the soil at the bottom to loosen or seep water, which will cause fatal danger to the subway

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