| 厚松散层开采条件下地表沉陷数值模拟分析 |
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| 引用本文： | 陈俊杰.厚松散层开采条件下地表沉陷数值模拟分析[J].煤炭工程,2014,46(6):103-105. |
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| 作者姓名： | 陈俊杰 |
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| 作者单位： | 武陟县国土资源局;平顶山天安煤业股份有限公司四矿;河南理工大学; |
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| 基金项目： | 国家自然科学基金委员会与神华集团有限责任公司联合资助项目(U1261206);河南省教育厅科学技术研究重点资助项目(13A440464);河南理工大学创新型科研团队支持计划资助(T2013-1) |
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| 摘 要： | 在厚松散层开采条件下,地表移动变形有自身的特点和变形规律。根据巨厚松散层下矿区的地质采矿条件,采用FLAC3D程序数值模拟软件,得到了100~350m不同厚松散层厚度条件下岩层垂直位移云图及地表下沉曲线。探讨了地表最大下沉值W、下沉系数q与松散层厚度之间的关系,分析了厚松散层开采条件下地表移动变形的特殊规律,并从岩层与地表移动变形机理方面进行了解释,进而得到了特定矿区厚松散层开采条件下沉陷规律。
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| 关 键 词： | 厚松散层 地表下沉 岩层移动 数值模拟 下沉系数 |
Numerical Stimulation and Analysis about the Surface Subsidence under Thick Alluvial |
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| Abstract: | In the condition of mining under thick alluvial, the surface subsidence and deformation have themselves characteristics and regularity. According to geology and mining condition in thick alluvium mine-area, cloud charts of strata vertical movement and surface subsidence curves are obtained in different conditions of alluvial thickness among 100m～350m. the relations are discussed about subsidence maximum subsidence W、subsidence coefficient q、thickness of alluvium, particular laws of the surface movement and deformation are analyzed in the condition of mining under thick alluvial, also the reasons are explained from movement and deformation mechanism of strata and surface. Then the subsidence law is obtained in the specific thick alluvium mine-area. |
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| Keywords: | thick alluvium surface subsidence strata movement numerical stimulation subsidence coefficient |
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