| 大连经济技术开发区石棉矿采空区地面塌陷机理与稳定性分析 |
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| 引用本文： | 孙树珩.大连经济技术开发区石棉矿采空区地面塌陷机理与稳定性分析[J].路基工程,2011,0(3):133-135. |
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| 作者姓名： | 孙树珩 |
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| 作者单位： | 辽宁水文地质工程地质勘察院, 辽宁大连 116037 |
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| 摘 要： | 分析了大连经济技术开发区石棉矿采空区地面塌陷形态及采空区塌陷机理,并应用ANSYS软件对采空区稳定性进行评价。结果表明:石棉矿采空区地面塌陷主要形态为采空区塌陷坑伴生地表裂缝、长列式串珠状地表塌坑、碟形和椭圆形塌陷坑及长列式单体塌陷坑。矿柱强度、矿柱数量及矿柱宽高比是引起岩体移动的决定因素。ANSYS软件数值模拟表明,采空区范围变形破坏仍在继续,总体变化趋势较大。建议加强监测,以策安全。
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| 关 键 词： | 石棉矿采空区 塌陷形态 塌陷机理 |
| 收稿时间： | 2019-11-10 |
Ground Subsidence Mechanism and Stability Analysis of the Goaf Area of Asbestos in Dalian Economic Technical Development Zone |
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| Authors: | SUN Shu-heng |
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| Institution: | SUN Shu-heng (Liaoning Exploration Institute of Hydrogeology and Engineering Geology,Dalian 116037,Liaoning,China) |
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| Abstract: | The forming and mechanism of ground subsidence in the goaf area of asbestos in Dalian Economic Technical Development Zone were analyzed and the stability of the goaf area was evaluated using ANSYS software in this paper.The results show that the form of ground subsidence in the goaf area is mainly of collapse pit with surface crack,long beaded surface collapse pit,phialiform and oval pit,and sing long collapse pit.The strength,quantity and aspect ratio of mine prop are the determining factors of ground move... |
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| Keywords: | goaf of asbestos forming of subsidence mechanism of subsidence |
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