Monitoring and Analysis of the Damage Height of overburden Rock Mass on the Mined-out Area

REN Fenhua; CAI Meifeng; LAI Xingping; KANG Yonghua; LIU Zhiguo

doi:10.13374/j.issn1001-053x.2004.02.001

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REN Fenhua, CAI Meifeng, LAI Xingping, KANG Yonghua, LIU Zhiguo. Monitoring and Analysis of the Damage Height of overburden Rock Mass on the Mined-out Area[J]. Chinese Journal of Engineering, 2004, 26(2): 115-117. doi: 10.13374/j.issn1001-053x.2004.02.001

Citation:

REN Fenhua, CAI Meifeng, LAI Xingping, KANG Yonghua, LIU Zhiguo. Monitoring and Analysis of the Damage Height of overburden Rock Mass on the Mined-out Area[J]. Chinese Journal of Engineering, 2004, 26(2): 115-117. doi: 10.13374/j.issn1001-053x.2004.02.001

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Monitoring and Analysis of the Damage Height of overburden Rock Mass on the Mined-out Area

doi: 10.13374/j.issn1001-053x.2004.02.001

Civil and Environmental Engineering School, University of Science and Technology Beijing, Beijing 100083, China;
2. China Coal Research Institute, Beijing 100013, China

Received Date: 2003-06-02
Available Online: 2021-08-16

Abstract

Abstract

The vertical boreholes were drilled from the surface for correlation detection of the damage height of overburden rock mass. The expanding height of the inner collapsed zone and the permeable fractured zone as well as their distribution in the overburden rock mass after excavation of the coal seam were determined based on the leakage volume of drilling fluid, the change of water level in the boreholes and the borehole images by color TV.
- overburden rock mass,
- monitoring,
- damage