Underground tunnel hanging-up assembling supporting construction

Abstract

The present invention relates to a supporting and protecting structure for an underground laneway in hanging and assembling way. the supporting and protecting structure is characterized in that a plurality of supporting and protecting plates are assembled into a supporting and protecting layer; each supporting and protecting plate is hung over the wall rock by a roof bolt; a flexible gap is kept between two adjacent plates; the width of the flexible gap is determined by the size of the laneway; the bigger the laneway deforms, the wider the flexible gap is; a flexible sealing strip is pressed into the flexible gap; the present invention has the beneficial effects that every supporting and protecting plate is hung by the roof bolt, which takes fully advantages of the supporting and protecting of the roof bolt that the wall rock is fixed together by the roof bolt and the supporting and protecting plates are hung over the wall rock by the roof bolt, thereby playing in a hanging role; the plate structure is constructed easier than the one-whole structure; the flexible gap is kept between two adjacent plates, and during the deforming of the wall rock, the gaps between the plates are contracted to release a part of the ground pressure, which changes the rigid supporting and protecting into the flexible supporting and protecting, thereby conforming to the modern flexible supporting and protecting principle; due to the release of the ground pressure, the supporting and protecting pressure is reduced, thereby avoiding the damage of the supporting and protecting layer.

Description

technical field [0001] The invention relates to underground roadway supporting materials. Background technique [0002] At present, there are various forms of underground roadway support, such as concrete masonry, shotcrete support, bolt support, anchor net shotcrete support and so on. The common feature of these support methods is that the support layer is a complete and hard whole, so it is called rigid support. When the underground roadway is deformed, the strong underground pressure will cause damage to the rigid support fracturing. Therefore, the current solution is to increase the support thickness or lay steel bars to resist underground pressure. In this way, the section size of the roadway will be increased, the supporting materials will be wasted, and the construction volume will be increased. Contents of the invention [0003] The purpose of this application is to solve the current shortage of rigid support for underground roadways, and to provide a hanging an...

AI Technical Summary

Problems solved by technology

In this way, the section size of the roadway will be increased, the supporting materials will be wasted, and the construction volume will be increased.

Images