Device and method for measuring dynamic evolution of three-dimensional disturbed stress under mining disturbance

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United States of America Patent

PATENT NO 11740371
APP PUB NO 20200116023A1
SERIAL NO

16531050

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Abstract

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The present invention discloses a device for measuring dynamic evolution of a three-dimensional disturbed stress under mining disturbance, comprising an outer steel cylinder. Three three-direction sensing units are arranged on the outer steel cylinder. Any two of three stress measurement directions of each three-direction sensing unit are perpendicular to each other. Nine stress measurement directions of the three three-direction sensing units are different. The present invention also discloses a method for measuring dynamic evolution of a three-dimensional disturbed stress under mining disturbance. In the present invention, stresses are measured from three perpendicular directions which are inclined, so the difficulty in measuring a three-dimensional stress in a borehole is overcome; and a spatial stress value is measured by three three-direction sensing units, and thus the size and direction of a disturbed principal stress in the borehole are calculated.

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Patent Owner(s)

Patent OwnerAddress
INSTITUTE OF ROCK AND SOIL MECHANICS CHINESE ACADEMY OF SCIENCES430071 SMALL HONGSHAN 2 FRUIT LAKE STREET WUCHANG DISTRICT WUHAN HUBEI WUHAN CITY HUBEI PROVINCE 430071

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chen, Bingrui Hubei, CN 5 3
Li, Tao Hubei, CN 743 4256
Wang, Bo Hubei, CN 734 4273
Wei, Fanbo Hubei, CN 1 2
Zhu, Xinhao Hubei, CN 13 91

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