A Distributed Trans-hole CT Detection Method

Abstract

The invention discloses a novel distributed cross-hole CT (computed tomography) detection system and method. The distributed cross-hole CT detection system comprises a computer system, a dual-core processor, a transmitter, a slave, a voltage acquisition system and an emission current acquisition system, wherein the computer system is connected with the dual-core processor; the dual-core processor is connected with the transmitter and the slave; the emission current acquisition system is connected with the transmitter; the voltage acquisition system and the emission current acquisition system are both connected with the slave. A large quantity of data can be quickly acquired through multi-channel synchronous data acquisition, richer geological structure characteristic information of a geoelectric cross section is acquired, multiple physical property parameters including electrical resistivity, natural potential and the like are measured, and the underground structure is described from different electrical property angles. Reliable underground structure information is provided for workers in a coal mine, disasters probably occurring in the exploitation process can be conveniently coped with in advance, the safety of the exploitation process can be well guaranteed, and casualties and economic loss are reduced.

Description

technical field [0001] The invention relates to the detection field, in particular to a distributed cross-hole CT detection method. Background technique [0002] As we all know, with the development of the national economy, the demand for coal is increasing. However, the mining process of coal mines is often accompanied by some accidents. Among them, mine water disasters have become the main factor affecting the safe production of coal mines. The occurrence of disasters often causes human casualties and economic losses. Therefore, it is necessary to accurately grasp the hydrogeological conditions of the coal seam to be excavated, find out the exact location of geological anomalies (such as water-bearing structures), lay a solid foundation for the next step of coal seam grouting, and ensure safe and efficient mining of mines. [0003] At present, the methods of trans-hole resistivity detection mainly include: (1) Electrical profile method, which has the characteristics of go...

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Problems solved by technology

[0003] At present, the methods of cross-hole resistivity detection mainly include: (1) Electrical profile method, this method has the characteristics of good horizontal resolution and obvious abnormalities, but the disadvantage is that the detection depth is not large

(2) Electric bathymetry, with good vertical resolution, can survey deeper formations, but the disadvantage is that with the increase of survey depth, more electrodes are needed, and the horizontal work efficiency is not very high

(3) The intermediate gradient method, the power supply electrode is fixed during the measurement, the measurement limitations are large, and the amount of data is small, usually only tens to hundreds of data, which cannot fully express geological information

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