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A spiral electrode resistivity probe rod and its monitoring method

A spiral electrode, resistivity technology, applied in the measurement of resistance/reactance/impedance, components of electrical measuring instruments, measuring electricity, etc., can solve problems such as difficulties, in-situ soil structure damage construction, etc., to reduce time and cost. , Improve the installation efficiency and promote the effect of further development

Active Publication Date: 2021-08-24
OCEAN UNIV OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the defects of in-situ soil structure damage and construction difficulties caused by soil excavation during the deployment and construction of existing measuring devices, the present invention proposes a spiral electrode resistivity probe rod and its monitoring method to improve Device Deployment Efficiency

Method used

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  • A spiral electrode resistivity probe rod and its monitoring method
  • A spiral electrode resistivity probe rod and its monitoring method
  • A spiral electrode resistivity probe rod and its monitoring method

Examples

Experimental program
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Effect test

Embodiment 1

[0037] Embodiment 1, a kind of spiral electrode resistivity probe, such as Figure 1-3 As shown, it includes a helical probe rod 1 and its auxiliary device, and the auxiliary device includes an electrode recovery device 2 and a penetration device 3;

[0038] The helical probe rod 1 includes a cone-tip probe 4, a probe rod body composed of several helical electrode modules 5, and a probe rod tail end 6;

[0039] The cone-tip probe 4 is made of stainless steel, installed on the head of the probe rod body, and adopts the form of a cone tip to facilitate the probe rod to rotate and penetrate into the soil;

[0040] The spiral electrode module 5 is the main component of the probe body, such as Figure 4 and Figure 5 As shown, the spiral electrode module 5 is arranged in the axial direction to form the probe body. The spiral electrode module 5 includes a cylindrical module body 12 and a movable spiral electrode 13 surrounding it. The module body 12 is made of insulating nylon mat...

Embodiment 2

[0048] Embodiment 2. According to the spiral electrode resistivity probe described in Embodiment 1, this embodiment proposes a corresponding monitoring method, which specifically includes the following steps:

[0049] 1. The probe rod is assembled in advance before installation. According to the required depth to be measured, a certain number of spiral electrode modules are assembled to form a spiral probe rod;

[0050] 2. Use a soil extractor to take a shallow hole with a diameter slightly larger than the diameter of the probe rod on the ground, install the sleeve on the end of the probe rod and place the probe rod head in the shallow hole;

[0051] 3. Insert the crowbar 11 into the socket wrench and rotate, and the screw rod penetrates into the soil with the rotation until the end of the probe rod is close to the soil surface, then remove the crowbar and the socket;

[0052] 4. Install and fix the electrode recovery device 2 on the end of the probe rod, and connect the steel...

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Abstract

The invention discloses a spiral electrode resistivity probe rod based on an electric method and a monitoring method thereof, including a spiral probe rod, an electrode recovery device and a penetration device, and the penetration device is used to assist the spiral probe rod to rotate and penetrate into the soil , the electrode recovery device is used to restore the spiral electrode to a closed ring electrode in the measurement state. The structure design of the probe rod proposed in this scheme can be manually screwed into the soil through the design of the threaded electrode after the earth taker is drilled; The ring electrodes with spaced distribution can complete long-term in-situ observation. The design of this device greatly reduces the time and cost of equipment installation and improves the installation efficiency; it also ensures that the resistivity gradient of the soil can be truly reflected and promotes the further development of soil in-situ monitoring technology. , to provide necessary technical and data support for the study of seawater intrusion, the evolution mechanism of soil salinization and disaster prevention.

Description

technical field [0001] The invention belongs to the field of geological in-situ monitoring, and in particular relates to a spiral electrode resistivity probe rod based on an electrical method and a monitoring method thereof. Background technique [0002] Seawater intrusion has great harm to agriculture, industrial production and population health. In recent years, with the development of economy, the phenomenon of seawater intrusion in some coastal areas of my country has increased. In order to further grasp the situation of seawater intrusion in coastal areas, in-situ monitoring probes based on the principle of electrical methods are currently used for long-term monitoring and prevention of seawater intrusion in coastal areas: the probes are arranged in a grid in the monitoring area to obtain monitoring The dynamic change process of the vertical distribution of electrical conductivity within the specified depth of the point constitutes the monitoring profile, so as to obtai...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R27/02G01R1/02G01R1/04G01N27/04
CPCG01N27/041G01R1/02G01R1/04G01R27/02
Inventor 张家瑞孟庆生费梓航郭磊刘涛苏秀婷张艳
Owner OCEAN UNIV OF CHINA
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