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Spiral electrode resistivity probe rod and monitoring method thereof

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

Active Publication Date: 2021-02-12
OCEAN UNIV OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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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  • Spiral electrode resistivity probe rod and monitoring method thereof
  • Spiral electrode resistivity probe rod and monitoring method thereof
  • Spiral electrode resistivity probe rod and monitoring method thereof

Examples

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Effect test

Embodiment 1

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

[0038] The spiral probe 1 includes a conical tip probe 4, a probe body composed of several spiral electrode modules 5, and a probe tail 6;

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

[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 modules 5 are arranged axially 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 material. The main body 12 is provided with an insta...

Embodiment 2

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

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

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

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

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

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Abstract

The invention discloses a spiral electrode resistivity probe rod based on an electrical method and a monitoring method thereof; the spiral electrode resistivity probe rod comprises a spiral probe rod,an electrode recovery device and a penetration device; the penetration device is used for assisting the spiral probe rod to rotate and penetrate into soil, and the electrode recovery device is used for recovering a spiral electrode into an annular electrode closed in a measurement state. According to the probe rod structure design provided by the scheme, after a soil sampler is drilled, manual screwing into soil can be realized through the thread type electrode design; after penetration of the probe rod is completed, the spiral electrode is converted into annular electrodes distributed at equal intervals through an electrode recovery device of the probe rod, long-term in-situ observation is completed, the time and cost of equipment installation are greatly reduced through the design of the device, and the installation efficiency is improved; the resistivity gradient of the soil can be truly reflected, the further development of a soil in-situ monitoring technology is promoted, and necessary technical and data support is provided for researching an evolution mechanism of seawater invasion and soil salinization and disaster prevention and control.

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 electric 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 economic development, seawater intrusion has become more serious in some coastal areas of my country. In order to further understand the situation of seawater intrusion in coastal areas, in-situ monitoring probe rods based on the principle of electrical methods are currently used for long-term monitoring and prevention of seawater intrusion in coastal areas: the detection rods are arranged in a grid in the monitoring area to obtain monitoring The dynamic change process of the vertical distribution of conductivity within the specified depth constitutes a monitoring section to obtain the distribution map of the c...

Claims

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Application Information

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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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