Mine seism advance detection method based on carbon dioxide cannon

Abstract

The invention discloses a mine seism advance detection method based on a carbon dioxide cannon, which comprises the following steps: the carbon dioxide cannon is used as a seismic source of mine seismadvance detection; facing a worker, a drill hole is punched in the head-on middle of a tunnel and the carbon dioxide cannon is placed at a predetermined position and oriented installation is carriedout on the carbon dioxide cannon; a plurality of six-component detectors are arranged in turn and side by side on a side wall of the tunnel; a collecting host is turned on, and the carbon dioxide cannon emits vibration signals to the pre-digging direction at a time, at the moment, the six-component detectors send detected vibration signals to the collecting host and the collecting host records; and the collecting host transmits each collected vibration signal to a computer, and the computer carries out comprehensive analysis in combination with geological data on site and finally predicts thegeologic anomaly structure in the front of the tunnel. The method disclosed in the invention has the advantages of low pressure detonation, seism source orientation, controllable energy and repeated using, and can carry out mine seism advance detection in the process of coal mass fracture operation carried out by the carbon dioxide cannon, so as to realize the mine seism advance detection withoutaffecting construction on a working face.

Description

technical field [0001] The invention relates to a mine seismic advance detection method, specifically a method based on CO 2 Cannon mine seismic advance detection method. Background technique [0002] Due to the characteristics of my country's national conditions of "rich in coal, low in gas, and poor in oil", it is determined that my country's coal will occupy a dominant position in energy production and consumption and will not change for a long time. With the continuous development of the coal industry, mine safety issues are very serious, such as roof caving, coal and gas outburst, mine water inrush, etc., which seriously affect the life safety of mine workers. According to statistics, more than 85% of the accidents are safe The problems are all produced in the production of mine roadway excavation. [0003] It is an important guarantee for safe mining of deep coal seams to provide first-hand geological and technical data for mine roadway excavation production by using...

AI Technical Summary

Problems solved by technology

At present, mine seismic advanced detection sources mainly adopt two methods of hammering and blasting. Although the hammering source is convenient to implement, it has the disadvantages of weak energy and low resolution of seismic signals; The resolution is high, but the on-site construction needs to be stopped when it is detonated, and high-voltage detonation is required, so corresponding voltage transformation equipment is required, and the detonation of the blasting has a great potential safety hazard. There have been many major safety accidents. The approval process required to force the detonation under the conditions is very cumbersome and inefficient

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