| 覆盖层的抗剪强度与土洞型岩溶塌陷高度关系的数值分析研究 |
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| 引用本文： | 李万有,陈立龙,李爽.覆盖层的抗剪强度与土洞型岩溶塌陷高度关系的数值分析研究[J].林业科技情报,2010,42(1):102-104. |
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| 作者姓名： | 李万有 陈立龙 李爽 |
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| 作者单位： | 黑龙江省城市规划勘测设计研究院 |
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| 摘 要： | 通过三雏快速拉格朗日有限差分法分析了阳春市大河水库移民河西安置典型土洞的塑性区分布情况。数值分析结果表明研究区典型土洞覆盖层在自重作用下所引起的塑性区已发展至地面，因此存在较大的塌陷可能。作者以此为基础，通过数值分析的方法，研究了在自重及其与均布外载联合作用下土洞型岩溶塌陷区的高度与覆盖层抗剪强度之间的关系。
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| 关 键 词： | 覆盖层 自重 均布外载 抗剪强度 土洞型岩溶 塌陷高度 数值分析 |
Study On Numerical Analysis Of The Relationship Between Shear Strength Of Cover Layer And The Soil Cave Karst Collapse Height |
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| Li Wanyou,Chen Lilong,Li Shuang.Study On Numerical Analysis Of The Relationship Between Shear Strength Of Cover Layer And The Soil Cave Karst Collapse Height[J].Forestry Science and Technology Information,2010,42(1):102-104. |
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| Authors: | Li Wanyou Chen Lilong Li Shuang |
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| Institution: | City Plan Reconnaissance Design And Design Research Institute Of Heilongjiang Province |
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| Abstract: | This paper analyzes the distribution of plastic zone of placing typical dust hole near the reservoir of Yangchun city using triaxiality rapid lagrange finite difference method.The results shows that the plastic zone caused by the empty weight will probable lead to sink.The author studies the relationship between shear strength of cover layer and the rock dissolve sink height under the combined action of empty weight and |
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| Keywords: | cover layer empty weight uniform distributed load shear strength soil cave karst collapse height numerical analysis |
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