Underground project assembly type lagging jack automatic connection joint and mechanized construction method

Abstract

The invention discloses an underground project assembly type lagging jack automatic connection joint and a mechanized construction method. An assembly type connecting device and a guide pressure bearing connecting device which are welded to two adjacent lagging jacks are included, and the assembly type connecting device and the guide pressure bearing connecting device are connected through a pin shaft rotating mechanism. Three rows of through holes are formed inside a connecting plate, guide stretchable devices are allocated in the holes, and the front ends of force transmission pins extend out of the holes through internal return springs. When the guide pressure bearing connecting device rotates around the pin shaft mechanism, the force transmission pins are extruded by a guide plate, thereturn springs are compressed, after a fixing connecting plate and the connecting plate are attached, the force transmission pins pop up to be combined with guide plate pin shaft holes in a clamped manner, joints are locked and connected together, and finally the joint strength and stability are improved through a bolt connecting mechanism. The joint is simple in structure, low in machining cost,simple in machining process, convenient and quick in welding and installing and wide in application scope.

Description

technical field [0001] The invention relates to an automatic connection node and a mechanized construction method of an assembled arch frame in underground engineering. Background technique [0002] Since the beginning of the 21st century, with the continuous development of cities and the continuous increase of population, land traffic has become increasingly congested, and the development of underground engineering has become urgent. In recent years, my country's underground engineering construction has developed rapidly, and has achieved some world-renowned achievements, ranking among the top countries in the world's underground engineering construction scale and construction speed. Due to the rapid development of the construction scale and construction speed of underground projects in our country, the requirements for construction efficiency and safety issues are becoming more and more stringent. At present, steel arches are generally used for underground engineering sup...

AI Technical Summary

Problems solved by technology

The traditional arch connection method cannot cooperate with mechanized construction, so a large number of workers are required to cooperate with the construction during on-site installation

[0005] (2) Long construction period, slow speed and low safety

During the arch connection process, workers need to carry out long-term construction in the unsupported space, which is difficult to guarantee safety, and the traditional arch connection method is time-consuming and laborious, which seriously lags behind the construction progress

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