| 榆树湾煤矿河流下安全开采数值分析 |
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| 引用本文： | 杨晓科,张小明,侯忠杰. 榆树湾煤矿河流下安全开采数值分析[J]. 采矿与安全工程学报, 2008, 25(3) |
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| 作者姓名： | 杨晓科 张小明 侯忠杰 |
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| 作者单位： | 1. 西安科技大学,能源学院,陕西,西安,710054
2. 北京华宇西安分公司,陕西,西安,710054 |
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| 基金项目： | 国家自然科学基金，高等学校博士学科点专项科研项目 |
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| 摘 要： | 在分析榆树湾煤矿首采长壁工作面的水文及工程地质的基础上,运用RFPA2D对其首采面开采分别进行走向和倾向两个数值模拟试验.试验表明,覆岩最大裂隙带的高度为92 m.通过模拟表明在距工作面40～60 m处的地表土层出现了不同长度的裂缝,地表裂缝未和裂隙带贯通,裂隙带与地表土层裂隙之间,在倾向模拟时和走向模拟时分别有30,18 m的土层隔离带.通过进行安全分析得到了最小安全防水煤岩柱的尺寸为95 m,表明数值模拟结果与工程开采实践基本一致.进一步为河流下安全开采提供了可行性.
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| 关 键 词： | 河流下开采 数值模拟 裂隙带 安全开采 |
Numerical Simulation of Safety Mining Under a River in Yushuwan Coal Mine |
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| YANG Xiao-ke,ZHANG Xiao-ming,HOU Zhong-jie. Numerical Simulation of Safety Mining Under a River in Yushuwan Coal Mine[J]. Journal of Mining and Safety Engineering, 2008, 25(3) |
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| Authors: | YANG Xiao-ke ZHANG Xiao-ming HOU Zhong-jie |
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| Affiliation: | 1.School of Energy Engineering;Xi'an University of Science & Technology;Xi'an;Shaanxi 710054;China;2.Xi'an Branch;Beijing Huayu Engineering Co.Ltd;Shaanxi 710054 China |
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| Abstract: | Hydrology geological conditions as well as engineering geological conditions for the long walll working of Yushuwan coal mine were analyzed and the first mining face was numerically simulated along both strike and dip directions by using the software RFPA2D.According to the experimental data,the maximal height of fracture zone is 92 m.The simulation shows that fractures with different lengths can be seen in surface soil layer 40~60 m far from the working face and these surface fractures have not been connec... |
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| Keywords: | coal mining under a river numerical simulation fracture zone safety mining |
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