Foundation pit controllable hydraulic steel support and use thereof

Abstract

The invention provides a controlled hydraulic steel support of a foundation pit and the application thereof, belonging to the field of construction engineering. The structure of the invention comprises a fixed end steel support, a flexible end steel support, a stopping device, an electric cabinet and a signal control cable; wherein, the fixed end steel support and the flexible end steel support are fixedly connected by a screw bolt as an integrated steel support, the stopping device is arranged between the fixed end steel support and a foundation pit enclosing purlin; wherein, the fixed end steel support is composed by a hydraulic oil cylinder, a spherical-hinge base, a seal cover, a route sensor, a connecting plate, a sealed oil tank, a supporting seat, a pressure sensor, an electric motor plus pump and a valve; the steel support device can compare the collected real-time information such as shaft force data, route change data and the like with support default value, the computer-controlled hydraulic system can realize the automatic adjustment and compensation of the support shaft force, and the support shaft force is adjusted according to the monitored results during construction to realize the requirements of controlling foundation pit deformation and guaranteeing safety during the foundation pit construction process. The controlled hydraulic steel support can be widely used for the pit protection during the foundation pit excavation process.

Description

Technical field:

[0001] The invention relates to a foundation pit steel support, in particular to a foundation pit controllable hydraulic steel support and its specific application in foundation pit construction, belonging to the field of construction engineering. Background technique:

[0002] Internal support is generally used to prevent structural deformation during foundation pit construction, and the most commonly used support form is steel support structure. The steel support is easy to install and dismantle, the material consumption is small, and the pre-tightening force can be applied to reasonably control the deformation of the foundation pit. At the same time, the erection speed of the steel support is fast, which is conducive to shortening the construction period. This form of support is easy to construct and is widely used in long strip foundation pits. Joints supported by steel generally adopt flexible joints, and insert steel wedges after pre-loading the axial...

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