Soil body electrical response measuring device under lightning impulse action

A technology of lightning impact and measuring device, applied in the direction of measuring device, measuring current/voltage, measuring electricity, etc.

Inactive Publication Date: 2013-12-04
UNIV OF SHANGHAI FOR SCI & TECH
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Problems solved by technology

[0009] However, the existing soil electrical response test equipment can not simulate the impact of lightning shock on the electrical response of soil well, nor can it simultaneously test soils with different water content, different salinity or different pH in the same lightning strike environment. To study the change of resistivity under

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  • Soil body electrical response measuring device under lightning impulse action
  • Soil body electrical response measuring device under lightning impulse action
  • Soil body electrical response measuring device under lightning impulse action

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Embodiment

[0030] The electrical response measuring device of soil under the action of lightning impact belongs to the field of environmental geotechnical engineering. Water volume, electrical response of soil with different salinity or different pH, impact current waveform, resistivity, pore water pressure and other properties, including model box, lightning generator, signal acquisition device and display device.

[0031] figure 1 It is a perspective view of a soil property measuring device according to an embodiment of the present invention.

[0032] figure 2 It is a top view of the soil property measuring device of the embodiment of the present invention.

[0033] Such as figure 1 , 2 As shown, the box body 1 of the model box is a cuboid, the length L is 400 mm, the width W is 400 mm, and the height H is 200 mm. The direction along the length of the box body 1 is longitudinal, and the direction along the width is transverse. The inside of the box body 1 is a hollow structure, ...

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Abstract

The present invention relates to a soil body property measuring device used for measuring a current waveform and the pore water pressure of a soil body under the lightning impulse action. The measuring device comprises a model box, a thunder and lightning generating device used for simulating the lightning stroke current shock and a display device, wherein the box body of the model box possesses three segments of cavity bodies in which the soil body samples can be filled, and a water pressure sensor is arranged at the horizontal position of each cavity body. Therefore, the soil body property measuring device can synchronously measure the soil body electrical response of the different soil bodies of different water contents, different salt contents or different acid-base values under the same lightning stroke environment, also can simulate the influence of the lightning stroke on the soil body electrical response very well, thereby providing guarantees for researching the soil body electrical response under the lightning impulse action and carrying out mechanism analysis.

Description

technical field [0001] The invention relates to a test device, in particular to a device for measuring the electrical response of soil under the impact of lightning. Background technique [0002] Lightning strike is a kind of electrostatic discharge phenomenon. When the electric field strength between thundercloud and the ground increases to a certain level, a discharge will occur between the thundercloud and the ground, that is, a lightning strike is formed. Franklin's research in 1753 proved that lightning strikes are actually a process of releasing a strong current. Once the lightning activity discharges the earth, it will generate a discharge current of hundreds of thousands of amperes. The huge unit energy and strong electromagnetic field activity will cause The huge thermal effect and electrical effect mean that the process of transmission and conversion of huge energy will follow. Therefore, Franklin invented the lightning rod, and its purpose is to "lead the lightnin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/00G01R19/00G01N27/00
Inventor 饶平平宋忠强闫雪明袁由军
Owner UNIV OF SHANGHAI FOR SCI & TECH
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