Reusable expansion electrode and use method thereof

Abstract

The present invention provides a reusable expansion electrode and a use method thereof. The expansion electrode is composed of a metal double-screw bolt, metal nuts, a metal elastic sheet and hollow circular truncated cone conductive sponge; and the metal double-screw bolt can be rotated, so that the first metal nut and the second metal nut can move away from each other or approach each other, andtherefore, the metal elastic sheet connected between the first metal nut and the second metal nut can contract inwardly or expand outwardly, and as a result, the metal elastic sheet moves away from or closely contact the hole wall of an electrode hole for mounting an electrode, and the electrode can be disassembled or installed repeatedly in an electric prospecting process. When electrical prospecting is performed in a test region such as a hardened road surface where grounding is difficult, a common electrode is unlikely to meet a grounding requirement, while, with the electrode and use method thereof provided by the present invention adopted, the improvement of a grounding condition, the reduction of grounding resistance, and the improvement of the data accuracy and work efficiency of the electrical prospecting can be benefitted.

Description

technical field [0001] The invention belongs to the technical field of electrical prospecting or monitoring, in particular to a reusable electrode in the technical field of electrical prospecting or monitoring and a usage method thereof. Background technique [0002] The resistivity method is a conductive test method, which is not suitable for environments hardened by concrete, asphalt, block stones and other materials. In order to improve the grounding condition of the electrode, the methods currently used mainly include: [0003] The first way is to use copper rods or iron rods as electrodes for electrical exploration. This simple electrode can be easily inserted into the soft topsoil for fixing and coupling, but for hard ground, especially concrete pavement or hard On the rocky surface, some auxiliary measures are needed, such as drilling holes and soil piles for fixing, and then coupling by watering. However, when working in areas with frequent human activities, this k...

AI Technical Summary

Problems solved by technology

However, when working in areas with frequent personnel activities, this kind of electrode is easily disturbed by personnel activities, which affects the development of exploration work.

[0004] The second method is to use large-scale mechanical or partial manual hammering to destroy the hardened surface, and then arrange conventional electrodes for power supply or data collection. However, this method will cause greater damage to the road surface, high construction cost, and long construction period.

[0005] The third method is as in the patent "A Rapid Test Device for Ground Electric Field of Hard Medium", which is to improve the electrode structure to promote the precise contact between the electrode and the hard medium, which is conducive to rapid testing, but this patent is still difficult to overcome the hard medium. Interference to the test signal, and the device is not suitable for carrying, and it is not easy to use in large quantities

[0008] The above electrode methods used for hardening surfaces have certain advantages, but there are also many problems, such as high cost, poor applicability, and easy interference by personnel activities.

Especially in urban electrical prospecting, due to frequent personnel activities, it is easy to make the electrode grounding more difficult, and it is easy to affect the surrounding personnel activities, etc.

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