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Device and method for monitoring earth fracture landslide through conductive concrete grounding grid

A technology of conductive concrete and grounding grid, which can be used in measuring devices, surveying of on-site foundation soil, connecting contact materials, etc.

Pending Publication Date: 2021-07-30
ECONOMIC RES INST OF STATE GRID GANSU ELECTRIC POWER +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In recent years, more and more scholars have paid attention to the methods of monitoring the cracks and slip zones of the earth by using the electrical conductivity of the soil, but there is still no effective way to monitor the health of the soil in a wider range. Methods

Method used

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  • Device and method for monitoring earth fracture landslide through conductive concrete grounding grid
  • Device and method for monitoring earth fracture landslide through conductive concrete grounding grid
  • Device and method for monitoring earth fracture landslide through conductive concrete grounding grid

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Embodiment 2

[0050] On the basis of above-mentioned embodiment 1, the present invention also mentions a kind of method that conductive concrete grounding grid monitors earth fissure landslide, comprises the steps:

[0051] Step 1: Make conductive concrete with conductive filler;

[0052] Step 2: Wrap conductive concrete on the surface of galvanized flat steel at the end of the radial line of the grounding grid;

[0053] Step 3: Use the end conductive concrete at the end of the grounding grid radiation as the electrode, and use the method of resistance tomography to invert to obtain the resistivity distribution state of the earth under the transmission tower and the safety of the foundation.

[0054] Graphene, carbon black and steel fibers are used as conductive fillers.

[0055] The graphene adopts the original graphene powder, the thickness of the graphene sheet is <1nm, and the size is <1μm; the particle size of carbon black is 1-10μm.

[0056] The diameter of the steel fiber is 0.1-0.2m...

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Abstract

The invention discloses a device and method for monitoring earth fracture landslide through a conductive concrete grounding grid, and belongs to the technical field of structural health monitoring. The device comprises a grounding module, a grounding grid radioactive ray, a power transmission tower and a power transmission tower foundation, the grounding module is connected with the grounding grid radioactive ray, and the power transmission tower is connected with the grounding grid radioactive ray through the power transmission tower foundation; the conductive concrete module can be conveniently connected with a galvanized steel sheet of an original grounding grid radioactive ray, the galvanized steel sheet wrapped by conductive concrete can increase the contact area between the grounding grid and the ground, and the grounding resistance is reduced. Moreover, the health condition of the grounding grid can be mastered by monitoring the resistivity change between the electrodes in the conductive concrete; conductive concrete at the end of the conductive concrete module serves as an electrode, and a method capable of detecting potential safety hazards such as ground fissure landslide and the like is formed based on the principle of electrical resistance tomography. The conductive concrete is corrosion-resistant and durable.

Description

technical field [0001] The invention belongs to the technical field of structural health monitoring, and in particular relates to a device and a method for monitoring ground fissure landslides with a conductive concrete grounding grid. Background technique [0002] At present, the grounding grid design of my country's transmission lines is relatively simple. Most of them use metal materials such as flat steel and round steel as grounding electrodes, and they are buried radially from the tower foundation to the four sides. However, the materials of these grounding bodies are not corrosion-resistant, the grounding resistance increases, and they are in disrepair for a long time, which greatly reduces the conductivity of the grounding grid, and the grounding bodies occupy a large area of ​​land. In recent years, the grounding design requirements of transmission line towers are gradually increasing, but the form of reducing grounding resistance is relatively simple, just extendin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/04H01R4/66E02D33/00E02D1/00
CPCG01N27/041H01R4/66E02D33/00E02D1/00
Inventor 王仕俊范雪峰平常
Owner ECONOMIC RES INST OF STATE GRID GANSU ELECTRIC POWER
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