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《Journal of University of Science and Technology Beijing》 2006-04
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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

LAI Xingping~ 1,2) , WU Yongping~ 1,2) , REN Fenhua~ 3) , CAI Meifeng~ 3) 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  
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.
【Fund】: 国家自然科学基金资助项目(No.10402033;No.50490271);; 教育部西部矿山开采与灾害控制重点实验室重点项目(No.04JS19);; 陕西省自然科学基金资助项目(No.2003E213)
【CateGory Index】: TD325
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