Steel support of automatic servo steel bracing jack

Abstract

The invention relates to a steel support of an automatic servo steel bracing jack. The steel support comprises a steel support box body and a reinforcing rib plate, wherein the steel support box body is a triangular diagonal bracing steel box body and is fixedly connected with a main ground wall reinforcement in a way that to-be-embedded reinforcing steel penetrates into a bottom steel plate of the steel support box body; the steel support box body acts on the main ground wall reinforcement after the angle of the steel support box body is regulated (the applicable range is 30-60 DEG), so that the whole steel bracing still keeps in a diagonal bracing state. In a steel bracing construction of an automatic servo system of a foundation pit, the axial force of the system is frequently changed and is relatively large, and the adjusting angle of an oil cylinder jack in the system is relatively small (generally + / -5 DEG), so that diagonal bracing construction is improper. The steel support acts on the main ground wall reinforcement after the angle of the steel support is regulated, so that the whole steel bracing still keeps in the diagonal bracing state. The steel bracing still keeps in a diagonal bracing working state when the steel bracing of the automatic servo system is in the diagonal bracing state. The stress is more balanced, and a bracing system is also more stable.

Description

technical field [0001] The invention relates to a steel support in an automatic servo system, in particular to an automatic servo system steel support suitable for underground foundation pits, capable of adjusting various angles in the construction of diagonal braces, and making the automatic servo system steel support The force bearing form of the support is still maintained as a pair of supports, which increases the stability of the support. Background technique [0002] With the continuous development of cities, the development and utilization of underground space has been paid more and more attention by people. In the field of underground engineering construction, the excavation area of ​​the foundation pit is getting larger and larger, the excavation depth is getting deeper and deeper, and the shape of the foundation pit is becoming more and more complex. However, the area around the construction site of the project is becoming more and more complex, and there are more...

AI Technical Summary

Problems solved by technology

[0003] The present invention aims to solve the technical problem that the automatic servo steel support system cannot be constructed in the diagonal brace in underground engineering, and provides a steel support for the automatic servo steel support jack. Under the action of the steel support, the steel support can be improved The adjustable angle range is 30o ~ 60o, and the automatic servo system can be rationally used in the diagonal bracing project. The traditional steel support system is still used for the diagonal bracing in the past, so that the deformation of the foundation pit during construction, Displacement is minimized

Images