Foundation pit force application device, foundation pit steel support device and foundation pit steel support installation method: Fid-Bau Portal

Foundation pit force application device, foundation pit steel support device and foundation pit steel support installation method

ZHANG PING / FANG YAOHUI / YANG SHENGWEN / GUO YUPING

Abstract

The invention provides a foundation pit force application device, a foundation pit steel support device and a foundation pit steel support installation method. The foundation pit force application device comprises a bottom plate, a body and a connecting body, wherein the bottom plate is used for being connected with a ring beam in a foundation pit through a support base; the body is connected withthe bottom plate; and the connecting body is used for being connected with a steel support, and the connecting body is connected with the body in a position-adjustable mode, so that preset internal force is applied to the steel support by adjusting the relative positions of the connecting body and the body. According to the foundation pit force application device, the preset internal force is applied to the steel support by adjusting the relative positions of the connecting body and the body, so that the internal force can exist after the steel support and the ring beam are installed, the stability between the steel support and the ring beam is effectively improved, the horizontal displacement of a foundation pit supporting structure is reduced, the safety and reliability of foundation pit supporting are improved, the structure is simple, operation is convenient, and repeated use can be achieved.

本发明提供了一种基坑施力装置、基坑钢支撑装置及基坑钢支撑安装方法。基坑施力装置包括：底板，用于通过支座与基坑内的圈梁相连接；本体，与底板相连接；连接体，用于与钢支撑相连接，并且，连接体与本体位置可调地相连接，以通过调节连接体与本体的相对位置进而对钢支撑施加预设内力。本发明中，通过调节连接体与本体的相对位置来对钢支撑施加预设内力，使得钢支撑与圈梁在安装后即可存在内力，有效地提高了钢支撑与圈梁之间的稳定性，减少了基坑支护结构的水平位移，并提高了基坑支护的安全性和可靠性，并且结构简单，便于操作，还可以重复使用。

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