Direct-current-electric-method-based rapid electrode distribution system for advanced detection of water hazard in tunnel and detection method thereof

Abstract

The invention discloses a direct-current-electric-method-based rapid electrode distribution system for advanced detection of a water hazard in a tunnel and a detection method thereof. The system comprises an infinity electrode and a host, wherein the electrode and the host are connected by a telescopic cable. Besides, the system also includes an automatic carry-bit multi-core testing wire connected with the host; the automatic carry-bit multi-core testing wire consists of a plurality of male and female head aviation plug groups; two male and female head aviation plug groups are connected by a plurality of wedge-shaped testing wires; and each male and female head aviation plug group is connected with a power supply measuring electrode correspondingly. According to the invention, the traditional cable electrode arrangement way is changed and a corresponding number of combined units of female head aviation plugs, wedge-shaped testing wires and female aviation plugs with the corresponding number are added, and thus re arrangement of all electrodes, the testing wire, and the host dost not required and one segment of testing wire, electrode and host need to be moved at a distance corresponding to a tunneling distance, so that the work becomes convenient with less time and effort. The traditional one-tunneling and one-detection mode is changed and real-time tracking and detection on the tunneling working face of the tunnel can be realized, so that the geological anomalous body can be detected timely by multiple times.

Description

technical field [0001] The invention relates to the application field of mine geophysics methods, in particular to a rapid pole-layout system for advance detection of roadway water damage based on a direct current method and a detection method thereof. Background technique [0002] Water damage is one of the five major disasters that affect mine safety production. During the excavation process of coal mine roadway, it is the key to solve the problem of coal mine water damage to find out the location of the water-rich anomaly area in front of the mining face. At present, the commonly used methods include drilling and geophysical prospecting. Among them, the direct current roadway advanced detection technology is widely used. It is based on the characteristics of the resistivity difference of rocks and water bodies, and uses the characteristic that the electric field distribution of the point power supply in space is an equipotential sphere to achieve the goal of advanced det...

AI Technical Summary

Problems solved by technology

However, there is a common problem in these commonly used methods: when continuously tracking and detecting the front of the tunneling face, after a survey line is arranged and measured, all power supply electrodes and measurement electrodes need to be re-arranged to perform subsequent measurements. Not only time-consuming and labor-intensive, but also the consistency of the electrode is affected, which brings inconvenience to data processing and interpretation

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