Multifunctional test device and method for measuring induced polarization effect of water-containing sand sample

Abstract

The invention discloses a multifunctional test device and a multifunctional test method for measuring the induced polarization effect of a water-containing sand sample. The multifunctional test device comprises two electrolysis chambers and a test sample chamber, wherein the test sample chamber is positioned between the two electrolysis chambers, and each of the electrolysis chambers is isolated from the test sample chamber through a permeation plate capable of adjusting a permeation parameter; test electrode systems for finishing an induced polarization effect test of the water-containing sand sample under a flowing water condition are mounted in the electrolysis chambers; under the action of a rotating device, the test sample chamber drives a test sample to rotate so as to realize automatic stirring, and the upper part of the test sample chamber is connected with a flowing water device through a connection hole; the flowing water device is used for simulating flowing water by respectively controlling a water amount and a water level in the sand sample in a test process.

Description

[0001] technical field [0002] The invention relates to a device and method for testing the induced polarization effect of a water-containing sand sample under the control of different factors, especially capable of realizing the measurement of the induced polarization effect of a water-containing sand sample under dynamic water conditions. Background technique [0003] The principle of the induced polarization method is a group of electrical prospecting methods to find metals and solve problems in hydrogeology and engineering geology based on the induced polarization effect of rocks and ores. It is further divided into DC induced polarization method (time domain method) and AC induced polarization method (frequency domain method). In the process of charging and discharging, the phenomenon of additional electric field that changes slowly with time due to electrochemical action is called the induced polarization effect (IP effect). As a material basis, it is a method of exp...

AI Technical Summary

Problems solved by technology

The main purpose is to solve the problem that the existing induced polarization device can only carry out the test of the rock core, but cannot carry out the test of the sample under the condition of dynamic water, and it is inconvenient to operate and low in efficiency. The induced polarization effect measurement device of samples under various parameters such as porosity, clay content and water content can realize the induced polarization effect test of rock samples and loose sand samples. Excited polarization effect measurement

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