西部礦區深部復雜應力環境下開采擾動區松軟巖層力學特性

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基金項目:

No.50490271)；教育部西部礦山開采與災害控制重點實驗室重點項目（No．04JS19）；陜西省自然科學基金資助項目（No．2003E213）

國家自然科學基金資助項目(No.10402033

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

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

摘要: 對西部石嘴山一礦38區深部+600m軌道巷開采擾動區進行了全面的工程地質調查.采用MOTIC-BA300POL型偏光顯微鏡等綜合分析了砂巖、泥巖的礦物成分、物理性質、自然狀態以及飽和狀態下的力學及變形特性.結合現場圍巖變形、應力監測與構造異常探測等,研究了深部復雜應力環境下松軟巖層力學特性.
- 西部礦區 /
- 深部開采 /
- 擾動區 /
- 現場監測 /
- 構造探測
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