| 覆岩岩性对地表移动变形的影响 |
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| 引用本文： | 侯长祥.覆岩岩性对地表移动变形的影响[J].湖南科技大学学报(自然科学版),1999,14(2):20-24. |
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| 作者姓名： | 侯长祥 |
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| 作者单位： | 湘潭矿业学院资源工程系,湖南湘潭,411201 |
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| 摘 要： | 通过覆 岩岩性 与开采影 响传 播方 向 关系 的 研究， 得 出了 倾斜 煤 层在 三下 开 采时 ，覆 岩越软，对地 表最大 下沉值影 响越大； 煤层倾角 越大，地 表最大下 沉值 的变 化越 大的 重要 结论 这 在开采时预 计地表 最大下沉 的位置和 量值，正 确选择 最大下沉 角，以 及预 示开 采后 顶板 的运 移方 向，预防顶板 冒落和 安全生产 作用较大 图２ ，表２ ，参７
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| 关 键 词： | 最大下沉值 开采影响传播系数 岩性 煤层倾角 |
| 修稿时间： | 1998-11-25 |
A STUDY ON RELATIONSHIP BETWEEN OVERBURDEN PROPERTY AND DIRECTION OF INFLUENCE PROPAGATION |
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| Hou Changxiang.A STUDY ON RELATIONSHIP BETWEEN OVERBURDEN PROPERTY AND DIRECTION OF INFLUENCE PROPAGATION[J].Journal of Hunan University of Science & Technology(Natural Science Editon),1999,14(2):20-24. |
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| Authors: | Hou Changxiang |
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| Abstract: | The relation between the properties of overlaying strata and the propagation directions of the exploitation effect was studied. It is found that the softer the overlaying strata, the stronger is the influence on the maximum subsidence values at the earth's surface;and the greater the dip angle of a coal seam,the larger is the change of maximum subsidence values at earth's surface,when the pitching coal under buildings,water and railways is extracted. The conclusion has the important significance for forecasting the locations and maximum subsidence values,selecting correctly maximum subsidence angles,predicting the moving directions of the extracted roofs, preventing caving and keeping safe production in mines.2figs.,2tabs.,7refs. |
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| Keywords: | maximum subsidence propagation coefficient of extraction rock property dip angle of the coal seam |
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