| 煤层底板破坏深度的综合测试方法 |
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| 引用本文： | 刘宗才.煤层底板破坏深度的综合测试方法[J].山东科技大学学报(自然科学版),1986(4). |
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| 作者姓名： | 刘宗才 |
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| 作者单位： | 山东矿业学院特殊开采研究室 |
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| 摘 要： | 在奥陶系灰岩岩溶承压水上带压开采时,用综合方法进行了观测,在室内做了相似材料模拟试验,得到了不同情况下的放(注)水规律;底板岩层水平及垂直方向受力情况;附加最大剪应力值;主压力方向;应力分布曲线;底板位移曲线及底板裂隙发育状况等,从而确定了底板破坏深度。
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| 关 键 词： | 岩层破坏 破坏深度 综合测定 观测方法 |
THE SYNTHETIC GAUGING METHOD OF THE DAMAGING DEPTH OF THE COAL SEAM FLOOR |
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| Res. sect. of spec. Min. Tec..THE SYNTHETIC GAUGING METHOD OF THE DAMAGING DEPTH OF THE COAL SEAM FLOOR[J].Journal of Shandong Univ of Sci and Technol: Nat Sci,1986(4). |
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| Authors: | Res sect of spec Min Tec |
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| Institution: | Res. sect. of spec. Min. Tec. |
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| Abstract: | Our institute has observed the coal mining under the pressure of the Ordovician limestone Karst water under the coal seams we did this with a synthetic method, and have made an initial experiment with similar materials. From these methods, we have obtained the laws of emitting water and its flooding, the vertical and horizontal stress's affect on the rock seams the under the floor, the maximum number of addational cutting stress, the main pressing stress's direction, the curves of the stress distribution and the movement of the floor, the growth of crevices in the floor. On this basis, the damaging depth of the floor was determined |
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| Keywords: | rock strata destroyed destructive depth comprehensive determination inspection method |
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