Construction method for reinforced supporting structure for foundation pit ramp under heavy-load passing condition

Abstract

The invention provides a construction method for a reinforced supporting structure for a foundation pit ramp under a heavy-load passing condition. The construction method comprises the following steps: A, road surface construction for the foundation pit ramp; B1, sidewall supporting structure construction for the foundation pit ramp; B2, sidewall steel latticework installation for the foundation pit ramp; and B4, diagonal bracing beam installation. The construction method has the advantages of being safe and rapid, advanced in technology, capable of being efficiently recovered, green and economic, capable of saving resources, and the like in the aspects of design construction concept, structure system stress, construction manner, recovery value and the like of the reinforced supporting structure for the foundation pit ramp, and is capable of being successfully applied to a supporting project for the foundation pit ramp under the heavy-load passing condition, and considerable in development and application prospect.

Description

technical field [0001] The invention relates to a construction method for reinforcing a support structure of a foundation pit ramp under heavy-load traffic conditions, and belongs to the fields of underground space development such as water conservancy, municipal engineering, and civil engineering. Background technique [0002] With the vigorous development of underground space development such as water conservancy, municipal engineering, and civil engineering, foundation pit engineering is an indispensable link in the construction process. With the increasing emphasis on environmental protection, it is necessary to rationally use the limited operating time and space and speed up the progress of the project. The setting method and traffic capacity of conventional foundation pit ramps are sometimes difficult to meet the construction requirements of heavy-load traffic, and in-depth design is required. The typical support methods for the side wall of foundation pit slopes inclu...

AI Technical Summary

Problems solved by technology

The setting method and traffic capacity of conventional foundation pit ramps are sometimes difficult to meet the construction requirements of heavy-duty traffic, and in-depth design is required

The typical support methods for the side wall of foundation pit slopes include "slope setting + soil nailing wall" support or "pile row + anchor rod" support. The former type requires too much space in the site, and the ramp The amount of earthwork is large, and it takes too long to excavate, which is not conducive to the construction of underground structures in the later stage; the latter type of ramp can also meet the requirements of heavy-duty traffic, but it is difficult and costly to remove the concrete rows during the excavation of the ramp, which seriously Affect the follow-up construction progress

Regarding the design and construction of foundation pit ramps, safety and reliability are the premise, but the high cost, great impact on the overall construction period, and improper handling may lead to slope instability accidents are common problems at present.

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