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Underground probe of earthquake prediction instrument

An earthquake prediction, U-shaped technology, applied in seismology, geophysical measurement, instruments, etc., can solve the problems of not being able to penetrate too deep into the ground, it is difficult to accurately measure the force of rock formations, and affect the sensitivity and accuracy of earthquake prediction. , to achieve the effect of easy replacement, easy operation and use

Inactive Publication Date: 2015-03-11
HEBEI NORMAL UNIV
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Problems solved by technology

[0002] The existing underground seismic detection instruments are limited by materials and manufacturing techniques, and cannot penetrate too deep into the ground. It is difficult to accurately measure the force of the rock formation from the surface to the depth of tens or even tens of kilometers below the rock formation. Therefore, it affects its earthquake prediction. Sensitivity and Accuracy

Method used

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Embodiment Construction

[0030] Depend on Figure 1-3 It can be seen from the illustrated embodiment that it includes an elastic plastic casing 4 , an upper cover 3 , a U-shaped optical fiber sensor 5 and a sensor group located in the sensor group casing 11 .

[0031] The U-shaped optical fiber sensor 5 is composed of a U-shaped steel wire rope 5-1 and an optical fiber helically wound on the U-shaped steel wire rope 5-1.

[0032] The suspension optical fiber sensor includes an oil pipe 6 located at the central axis of the plastic casing 4 with a height of more than 7 km, a suspension optical fiber 8 located on the center line of the oil pipe 6, and a weight 10 tied to the lower end of the suspension optical fiber 8; A reflective surface 9 is provided at the lower end of the suspended optical fiber 8 on the upper surface of the weight 10 .

[0033] The sensor group housing 11 is located at the lower end of the plastic-encapsulated housing 4; the plastic-enclosed housing 4, the U-shaped optical fiber s...

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Abstract

The invention relates to an underground probe of an earthquake prediction instrument and is specially suitable for predicting shallow-focus earthquakes. The underground probe comprises an elastic plastic shell, an upper cover, a U-shaped optical fiber sensor and a sensor unit which is located in the shell of the sensor unit. The U-shaped optical fiber sensor consists of a U-shaped steel wire rope and optical fibers spirally twisted on the U-shaped steel wire rope. A suspended optical fiber sensor comprises an oil pipe which is located at the middle axis of a plastic packaged shell and is more than 7km away from the bottom of the plastic packaged shell, a suspended optical fiber which is located on the central line of the oil pipe and a heavy hammer which is tied to the lower end of the suspended optical fiber; and a reflecting surface is arranged at the lower end of the suspended optical fiber on the upper surface of the heavy hammer. The underground probe of the earthquake prediction instrument is applicable to exploring the stressing condition of underground deep rock and has the advantages of high exploring sensitivity and high accuracy.

Description

technical field [0001] The invention relates to an underground probe of an earthquake prediction instrument. It is especially suitable for the prediction of shallow earthquakes. technical background [0002] The existing underground seismic detection instruments are limited by materials and manufacturing techniques, and cannot penetrate too deep into the ground. It is difficult to accurately measure the force of the rock formation from the surface to the depth of tens or even tens of kilometers below the rock formation. Therefore, it affects its earthquake prediction. sensitivity and accuracy. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide an underground probe of an earthquake predictor with high sensitivity and accuracy, which is suitable for detecting the stress of deep underground rock formations. [0004] The technical solution adopted by the present invention to solve its technical problems: [0005] The...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01V1/00
Inventor 赵华陈嘉兴李韶华靳慧龙黄战平孙军英吕清刘亚川杨丽坤刘金星
Owner HEBEI NORMAL UNIV
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