Instant-plug spherical hinge-type quantifiable-yield steel arch connecting component and using method

Abstract

The invention discloses an instant-plug spherical hinge-type quantifiable-yield steel arch connecting component and a using method. The connecting component is arranged between two steel arches and comprises a connecting rod and a sleeve. The connecting rod comprises a spherical tip at one end, a threaded tip at the other end, and a rod body in the middle. An annular protruding part is arranged atthe joint of the threaded tip and the rod body. The sleeve is of a structure with one end sealed and the other end open. An internal threaded part is arranged at a position, close to the sealed end,of the inner wall of the sleeve, and a one-way clamping part is arranged on the inner wall of the open end of the sleeve. A perforated steel plate is welded to the end of the steel arch on one side ofthe connecting component, and a sealed steel plate is welded to the end of the steel arch on the other side of the connecting component. A threaded hole matched with the threaded tip is formed in thecenter of the perforated steel plate, and the sealed end of the sleeve and the sealed steel plate are welded together. The instant-plug spherical hinge-type quantifiable-yield steel arch connecting component is exquisite in structure, easy to operate and capable of achieving efficient support, the assembling procedure of the steel arches is greatly simplified, the number of workers is reduced, and the work time is shortened.

Description

technical field [0001] The invention relates to the technical field of high-efficiency support of TBM excavation tunnels and large deformation control of weak surrounding rocks, in particular to a plug-in ball joint type steel arch connection member with quantifiable pressure relief and a use method thereof. Background technique [0002] With the development and utilization of large-scale underground projects in recent years, my country's tunnels, mines and underground space technology have achieved rapid development. Among them, the technologies used for rock tunnel excavation are mainly divided into drill and blast method and TBM method. Compared with the drilling and blasting excavation method, the TBM method has the advantages of high efficiency, high quality, safety, economy, environmental protection and low labor intensity, but it is very sensitive to geological conditions, especially for weak formations such as poor penetration properties, low strength, and easy soften...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a plug-in spherical joint type steel arch connection member with quantifiable pressure relief and its use method, which are used to solve the problem of large deformation of soft rock in tunnels, and the steel arch in the prior art scheme The installation process is complicated, the worker's work efficiency is low, and it is difficult to evaluate the support effect

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