| 紫金煤矿软岩条件下原岩地应力测试方法的选择 |
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| 引用本文： | 范文生.紫金煤矿软岩条件下原岩地应力测试方法的选择[J].中国煤炭,2012,38(6):59-60,84. |
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| 作者姓名： | 范文生 |
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| 作者单位： | 中国矿业大学(北京)资源与安全工程学院,北京市海淀区,100083;山西焦煤集团公司,山西省太原市,030024 |
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| 摘 要： | 针对紫金煤矿地质条件复杂、区域构造多、水平应力较大的特点,选择钢弦式应力盒作为测定原岩应力的传感器,对该矿埋深580m的3204工作面进行了地应力测试,给出了地应力分布的大小和方向。结果表明,紫金煤矿三采区2#煤层区域的应力分布特征以水平应力为主,约为垂直主应力的1.3倍;且区域性明显,不同位置的原岩应力方向不同,差别较大。
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| 关 键 词： | 松软煤层 复杂煤层 地应力测试 钢弦式应力盒 |
Selection of method for in-situ stress measurement of original rock in soft rock in Zijin Coal Mine |
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| Fan Wensheng.Selection of method for in-situ stress measurement of original rock in soft rock in Zijin Coal Mine[J].China Coal,2012,38(6):59-60,84. |
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| Authors: | Fan Wensheng |
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| Affiliation: | Fan Wensheng1,2(1.Faculty of Resources and Safety Engineering,China University of Mining and Technology,Beijing,Haidian,Beijing 100083,China; 2.Shanxi Coking Coal Group Co.,Ltd.,Taiyuan,Shanxi 030024,China) |
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| Abstract: | Aiming at the features of complicated geological conditions,many kinds of regional structures and large horizontal stress in Zijin coal mine,the paper adopts the steel-chord stress cell as the sensor to conduct the in-situ stress measurement on the 3204 working face in depth of 580m,and gives the size and orientation of the in-situ stress distribution.The results show that,the stress distribution in 2# seam of 3rd mining area in Zijin coal mine is horizontal stress-centered,which is approximately 1.3 times greater than the perpendicular principal stress;regional features are obvious: stress directions are different because of the different locations of the original rock,and there are great differences among them. |
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| Keywords: | soft coal seam complicated seam in-situ stress measurement steel-chord stress cell |
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