Damping and buffering method and device during blasting construction of mine roadway

Abstract

The invention relates to a damping and buffering method and device during mine roadway blasting construction, and belongs to the technical field of mine roadway engineering. A buffer device is mounted at the bottom of an ascending roadway, and a shock insulation cambered surface is mounted at the top of an existing roadway; the buffering device comprises a buffering prefabricated plate, a shock pad and a reinforcing tower plate, the buffering prefabricated plate is fixedly connected with a foundation at the bottom of the ascending roadway into a whole through cement by means of secondary pouring, and the shock pad comprises an anti-skid pad located at the bottom, a sealing pad arranged on the edge of the anti-skid pad and a height adjusting pad arranged in the middle of the anti-skid pad. The reinforced tower plate adopts an inclined surface which is gradually lowered from the outer side to the inner side; the shock insulation cambered surface comprises a reinforcing layer and level gauges installed on the two sides of the reinforcing layer. The reinforcing layer comprises a waterproof plate, vibration isolation rubber and a supporting rib net, and the level gauge transmits information of the inclination angle of the existing roadway to the early warning server through optical fibers; the construction period can be shortened; the blasting early warning information is obtained through the level gauge, the whole construction period is shortened, and blasting data are accurate.

Description

technical field [0001] The invention relates to a shock-absorbing and buffering method and device during blasting construction of mine roadways, and belongs to the technical field of mine shaft and roadway engineering. Background technique [0002] For some mines, slope road development is adopted, and it is difficult to avoid upper and lower layers intersecting and overlapping. During the roadway construction process, roadway blasting can easily cause shock to the existing roadway, thereby causing a series of safety accidents. Cooperate with shock-absorbing buffer device for further safety protection. Since the buffer layer basically has no supporting strength, it is also necessary to attach a reinforcement plate that is larger than the length of the buffer layer and can strongly support the surrounding rocks on both sides; the construction is relatively complicated and the surrounding rock is greatly disturbed. However, the existing patents already have many solutions to ...

AI Technical Summary

Problems solved by technology

Since the buffer layer basically has no supporting strength, it is necessary to attach a reinforcement board that is longer than the buffer layer and can strongly support the surrounding rocks on both sides; the construction is more complicated, and the surrounding rocks are greatly disturbed

However, the existing patents already have many solutions to the problems of complex construction and long pouring period on site. How to properly combine the prefabricated slab technology with mine roadway blasting technology to achieve shock absorption and obtain early warning at the same time is the frontier in this field. research topic

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