Underground construction surrounding rock disaster whole time interval induced polarization monitoring method

Abstract

The invention provides an underground construction surrounding rock disaster whole time interval induced polarization monitoring method, and belongs to the technical field of mining industry and geotechnical engineering security detection and monitoring. The underground construction surrounding rock disaster whole time interval induced polarization monitoring method relates to a power supply electrode (1), a measuring electrode (2), a digital direct current induced polarization instrument (3), a main control computer (4) and an acousto-optic warning device (5). The power supply electrode (1) and the measuring electrode (2) are respectively connected with the digital direct current induced polarization instrument (3) through connecting wires, the digital direct current induced polarization instrument (3) is mutually communicated with the main control computer (4), the main control computer (4) is communicated with the acousto-optic warning device (5), the power supply electrode (1) and the measuring electrode (2) are arranged in an underground construction roadway or a tunnel surrounding rock monitoring region, and the digital direct current induced polarization instrument (3) and the main control computer (4) record and analyze monitored polarizability of the underground construction roadway or a tunnel surrounding rock in interval time periods in real time. The underground construction surrounding rock disaster whole time interval induced polarization monitoring method has the advantages of being large in monitoring range, high in safety, damage-free, real-time and reliable in monitored data, and capable of early warning in a grading mode.

Description

technical field [0001] The invention discloses a full-time interval excitation polarization monitoring method for surrounding rock disasters in underground engineering, which belongs to the technical field of mining and geotechnical engineering safety detection and monitoring. Background technique [0002] Surrounding rocks of underground engineering have dangers such as ribs, floor drums, roof caving, rockburst dynamic disasters, and water inrush, which pose a direct threat to staff and equipment. As far as the mine is concerned, from the beginning of 2012 to the end of September 2012, there were 11 roof fall accidents, 44 people died, and the safety of surrounding rocks needs to be solved urgently. [0003] To ensure safety, advance prevention and early warning must be carried out for the occurrence of the above problems, and monitoring and monitoring of the surrounding rock state is required. At present, the surrounding rock monitoring mainly includes surrounding rock de...

AI Technical Summary

Problems solved by technology

The induced polarization method is an electrical prospecting method based on the induced polarization effect of rocks to solve geological problems. So far, this method has mainly focused on ore prospecting, hydrology, engineering and other geological applications. There is no report on the application of this method in the monitoring of surrounding rock hazards.

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