Mechanical characteristics of soft-rock at excavation disturbed zone in the complex stress environment of deep mining in the western coal mine region of China

LAI Xingping; WU Yongping; REN Fenhua; CAI Meifeng

doi:10.13374/j.issn1001-053x.2006.04.002

Volume 28 Issue 4

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LAI Xingping, WU Yongping, REN Fenhua, CAI Meifeng. Mechanical characteristics of soft-rock at excavation disturbed zone in the complex stress environment of deep mining in the western coal mine region of China[J]. Chinese Journal of Engineering, 2006, 28(4): 312-316. doi: 10.13374/j.issn1001-053x.2006.04.002

Citation:

LAI Xingping, WU Yongping, REN Fenhua, CAI Meifeng. Mechanical characteristics of soft-rock at excavation disturbed zone in the complex stress environment of deep mining in the western coal mine region of China[J]. Chinese Journal of Engineering, 2006, 28(4): 312-316. doi: 10.13374/j.issn1001-053x.2006.04.002

Citation:

LAI Xingping, WU Yongping, REN Fenhua, CAI Meifeng. Mechanical characteristics of soft-rock at excavation disturbed zone in the complex stress environment of deep mining in the western coal mine region of China[J]. Chinese Journal of Engineering, 2006, 28(4): 312-316. doi: 10.13374/j.issn1001-053x.2006.04.002

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Mechanical characteristics of soft-rock at excavation disturbed zone in the complex stress environment of deep mining in the western coal mine region of China

doi: 10.13374/j.issn1001-053x.2006.04.002

1. Energy School, Xi'an University of Science and Technology, Xi'an 710054, China;
2. West Mining and Hazard Control Key Laboratory, the Ministry of Education, Xi'an 710054, China;
3. Civil and Environmental Engineering School, University of Science and Technology Beijing, Beijing 100083, China

Received Date: 2005-11-02
Rev Recd Date: 2006-02-20

Available Online: 2021-08-24

Abstract

Abstract

This paper investigated the comprehensive in-situ engineering and environmental characteristics of No. 38 excavation disturbed zone (EDZ) at the depth of 600 m in Shizuishan Mine in western China. The mineral composition, physical characteristics and mechanical properties in nature and saturation conditions of sandstone and mud-stone were analyzed by microscope and material testing machine. The collapsing regularity and stress characteristics of soft rock in the complex stress environment of deep mining were quantificationally gained based on deformation and stress monitoring and tectonic detecting.
- western coal region,
- deep mining,
- disturbed zone,
- in-situ monitoring,
- tectonic detection