| 打通一煤矿西区开采对地表影响程度研究 |
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| 引用本文： | 李吴波,王现金.打通一煤矿西区开采对地表影响程度研究[J].中国煤炭地质,2008(11):41-43. |
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| 作者姓名： | 李吴波 王现金 |
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| 作者单位： | 重庆一三六地质队,重庆渝北401147 |
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| 基金项目： | 国家发展和改革委员会,重庆松藻矿区采煤沉陷区治理项目,发改投资[2004]2978号. |
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| 摘 要： | 从分析矿井西区的地形地貌、地质构造、地层、水文地质条件和开采技术条件入手，对W2701工作面开采后的地表裂缝、地表水体和地面塌陷进行了调查，推算煤层开采后的冒落带和裂隙带的高度分别为40．90m和140．22m，而该区煤层埋深为450-600m，说明在正常开采下，不会对地表产生影响。但随着开采强度的增大，煤系地层上覆岩层中一些未探明隐伏裂隙的存在，可能会间接影响到地表。据此提出了设立岩移观测站、建立预警系统、留设安全煤柱等预防措施。
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| 关 键 词： | 地表变形 调查分析 影响程度 采区 |
Impact of Mining on Ground Surface in West District of Datongyi Coaimine |
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| Li Wubo,Wang Xianjin.Impact of Mining on Ground Surface in West District of Datongyi Coaimine[J].Coal Geology of China,2008(11):41-43. |
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| Authors: | Li Wubo Wang Xianjin |
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| Institution: | (Chongqing No. 136 Geological Exploration Team, Chongqing 401147) |
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| Abstract: | Proceed with landform and relief, geological structure, stratigraphy, hydrogeological condition and mining technical condition of west district of the coalmine, investigated ground fissures, open waters and surface subsidence above the W2701 working face after mining. Estimated heights of caving zone and fissured zone are 40.90m and 140.22m respectively after coal seam mined, while the area＇s coal seam buried depth is 450-600m, thus explained no impact of mining on ground surface under normal mining. But along with mining intensity increasing, existing hidden fissures in overlying strata above the coal measures may impact to ground surface indirectly. Hereby, precautionary measures of to set up rock movement observation station, early warning system and safety pillar leaving etc. put forward. |
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| Keywords: | surface deformation investigation and analysis impact degree winning area |
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