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Space-time four-dimensional electrical method detection system and method for physical model test

A technology of electrical detection and physical model, which is applied in the field of geophysical electrical exploration, can solve problems such as insufficient electrodes and the limitation of the number of detection channels of electrical equipment, and achieve improved measurement efficiency, fast real-time digital display of measurement results, and improved measurement efficiency effect

Pending Publication Date: 2021-02-05
CHANGAN UNIV
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Problems solved by technology

[0003] In view of the deficiencies in the existing technology, the purpose of the present invention is to provide a space-time four-dimensional electrical detection system and method for physical model tests to solve the shortage of traditional electrical detection coil electrodes and the limitation of the number of detection channels of electrical equipment , to achieve full coverage of geological body detection space scale and high-precision rapid detection of long time-scale sequences

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  • Space-time four-dimensional electrical method detection system and method for physical model test
  • Space-time four-dimensional electrical method detection system and method for physical model test

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Embodiment 1

[0062] Such as Figure 1 to Figure 7 As shown, the present embodiment provides a space-time four-dimensional electrical detection system for physical model tests, including an electrode sensor 1, an electrode multiplexer 2 and a host 3; the electrode sensor 1 is connected to the electrode multiplexer 2, The electrode multiplexer 2 is connected to the host computer 3, and the multiplexer 2 can connect multiple electrode sensors 1 to the host computer 3 for testing in order to realize the multi-point and large-scale uninterrupted detection of the electrical method.

[0063] Such as figure 2 As shown, the electrode sensor 1 includes an electrode support rod 11 and a plurality of ring electrodes 12, the electrode support rod 11 is a hollow cylindrical structure, and a plurality of axially uniform annular grooves are arranged on the outer wall of the electrode support rod 11; The center of the rod 11 is provided with a transmission cable, which extends from the top of the electro...

Embodiment 2

[0075] This embodiment provides a space-time four-dimensional electrical detection method for physical model tests. The method is based on a detection system and includes the following steps:

[0076] Step 1, wiring: put the electrode sensors into the model box vertically at equal intervals according to the size of the model. The electrode sensors are required to be separated from the boundary by a certain distance to eliminate the influence of boundary effects, and the maximum number of electrode sensors is 30;

[0077] Step 2, model landfill: stack the soil body into the model box according to the requirements from bottom to top, and do not knock down the electrode sensor placed in the landfill process to ensure that the position of the electrode sensor remains unchanged and is in close contact with the soil body. Such as Figure 8 Examples of sensor systems and landfills are shown in ;

[0078] Step 3, device connection: Connect the sensor plugs connected to the top of all...

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Abstract

The invention discloses a space-time four-dimensional electrical method detection system and method for a physical model test. The space-time four-dimensional electrical method detection system comprises an electrode sensor, an electrode multiplexer, a host and a power supply system. The electrode sensor comprises a ring-type electrode and a supporting electrode stem, and can achieve multi-point and spatial three-dimensional distribution in a hole of the electrode; the electrode multiplexer is used for sequentially communicating a large number of coil electrodes with the host system for testing, so as to achieve multipoint large-range uninterrupted detection; the host comprises a computer and a control element, and can achieve rapid real-time measurement and result digital display functions; the power supply system comprises an indoor power supply, a high-voltage booster and a power supply circuit and is used for continuously and stably supplying power to the host for a long time. Thedefects that a traditional electrical method is not suitable for a small geologic body, and electrical method detection data reveals that information is gradually reduced along with increase of the measurement depth are overcome; and a time shifting technology is introduced into high-density electrical method detection, so that high-precision four-dimensional electrical method data suitable for describing spatial and temporal evolution of the geologic structure body in a model test is obtained.

Description

technical field [0001] The invention belongs to the field of geophysical electrical exploration, in particular to a space-time four-dimensional electrical exploration system and method for physical model tests. Background technique [0002] With the gradual expansion of the scale of major projects in our country, the engineering geological problems revealed are becoming more and more complex, and the problems of major engineering disasters are becoming more and more prominent. Indoor model tests are widely used in scientific research in related fields due to the advantages of small investment, short cycle, and accurate experimental data. General model test monitoring methods cannot fully reveal the spatio-temporal information of complex geological bodies, and geophysical methods can realize the detection of complex geological structures. For example, the high-density electrical method is a common geophysical exploration method. The array exploration method of bathymetry has...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01V3/02
CPCG01V3/02
Inventor 祝艳波田王慧刘永东兰恒星李红飞韩宇涛刘耀文刘振谦杨凡凡李文杰张宇轩李福通张广德
Owner CHANGAN UNIV
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