| 浅埋房式采空区下煤层长壁综采矿压规律研究 |
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| 引用本文： | 王方田,陈芳,白庆升,王沉.浅埋房式采空区下煤层长壁综采矿压规律研究[J].中国煤炭,2012,38(5):66-69. |
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| 作者姓名： | 王方田 陈芳 白庆升 王沉 |
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| 作者单位： | 中国矿业大学矿业工程学院,江苏省徐州市,221116;中国矿业大学煤炭资源与安全开采国家重点实验室,江苏省徐州市,221116 |
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| 基金项目： | 江苏省研究生科研创新计划资助(CX10B_148Z);江苏省高校优势学科建设工程资助项目 |
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| 摘 要： | 根据温家梁三号煤矿地质生产条件,采用理论分析、数值模拟及现场实测等方法,分析了浅埋房式采空区下综采长壁工作面矿压规律。结果表明:工作面充分采动后覆岩呈现冒落带与裂隙带的"两带"发育特征;在工作面来压期间出现顶板沿支架前方煤壁处切落现象,台阶下沉量高达1.0m,在地表形成断裂地堑。
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| 关 键 词： | 浅埋煤层 房式采空区 综采长壁工作面 台阶下沉 矿压规律 |
Study on strata behavior law in fully mechanized longwall mining face in the shallow coal seam beneath gob induced by room-mining |
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| Wang Fangtian
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Chen Fang
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Bai Qingsheng
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Wang Chen.Study on strata behavior law in fully mechanized longwall mining face in the shallow coal seam beneath gob induced by room-mining[J].China Coal,2012,38(5):66-69. |
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| Authors: | Wang Fangtian Chen Fang Bai Qingsheng Wang Chen |
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| Affiliation: | 1,2(1.School of Mining Engineering,China University of Mining and Technology,Xuzhou,Jiangsu 221116,China; 2.State Key Laboratory of Coal Resources and Safe Mining,China University of Mining and Technology,Xuzhou,Jiangsu 221116,China) |
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| Abstract: | According to the geological and mining conditions of No.3 mine in Wenjialiang colliery,the methods of theoretical analysis,numerical simulation and field observation have been employed to study the strata behavior law in the fully mechanized longwall mining face in the shallow coal seam beneath the gob induced by room-and-pillar mining.The results indicate that caving zone and fractured zone emerge in the overlying strata after complete mining.There have roof fracturing and falling along the coal wall before the supports during the periodic weighting in mining face.The bench subsidence is around 1.0 meter,which results in the fracture graben in the Earth surface. |
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| Keywords: | shallow coal seam gob induced roommining fully mechanized mining longwall mining face bench subsidence strata behavior law |
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