| 受采动影响时沿空掘巷煤柱合理尺寸的数值模拟研究 |
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| 引用本文： | 杜志清.受采动影响时沿空掘巷煤柱合理尺寸的数值模拟研究[J].山东煤炭科技,2008(5). |
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| 作者姓名： | 杜志清 |
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| 作者单位： | 河南省鸦壁煤电股份公司九矿.河南,鹤壁,458010 |
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| 摘 要： | 本文利用UDEC3.1软件对综放工作面沿空掘巷煤柱合理尺寸性进行模拟。不同尺寸煤柱条件下受采动影响沿空掘巷围岩变形和应力分布特点表明无论巷道掘进期间还是沿空掘巷受采动影响期间,巷道围岩变形量都随着煤柱宽度的增大而减小,但煤柱宽度增大到一定程度时巷道围岩变形量基本相差不大。
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| 关 键 词： | 沿空掘巷 煤柱尺寸 数值模拟 |
Numerical simulation study on coal pillar size optimization of roadway driving along gob affected by Mining Action |
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| Du Zhiqing.Numerical simulation study on coal pillar size optimization of roadway driving along gob affected by Mining Action[J].Shandong Coal Science and Technology,2008(5). |
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| Authors: | Du Zhiqing |
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| Affiliation: | Du Zhiqing(He Bi Coal&Electricity Corporation Limited nine mine,He Nan,He Bi 458010) |
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| Abstract: | Rational size of the coal column of gob-side entry driving in sublevel caving mining is simulated by UDEC3.1.It is the surrounding rock deformation and stress distribution analysis of gob-side entry driving under influence of mining that indicate that deformation of surrounding rocks' decrease along with size's increase of the coal column,but the surrounding rock deformation is not changed distinctly when size of the coal column increased to a certain degree. |
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| Keywords: | roadway driving along gob oal pillar size optimization Numerical simulation |
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