| Development and Failure Principle of Differential Weathering Overhanging Rock |
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| 作者姓名： | ZHANG Yong xing LU Li ZHANG Si ping and HU Dai wen |
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| 作者单位： | College of Civil Engineering ,Chongqing University, Chongqing 400045, P.R.China;College of Civil Engineering ,Chongqing University, Chongqing 400045, P.R.China;College of Civil Engineering ,Chongqing University, Chongqing 400045, P.R.China;College of Civil Engineering ,Chongqing University, Chongqing 400045, P.R.China |
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| 摘 要： | Differential weathering overhanging rock by hard rock and soft rock interlayer is common for geological failure.To study the influence of ground stress in rock slope and cave deepness to differential weathering overhanging rock,a mechanical model was proposed.And hollow cylinder stress meter was used to test and analyze on site ground stress at Hongyadong in Chongqing.Moreover, the development range of overhanging rock was determined.And a case studywas used to analyze the relationship among tension ground stress, cave deepness and growth of controlling crack.A method for forecasting overhanging rock failure pattern was proposed.
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| 关 键 词： | weathering overhanging rock ground stress cracks |
| 收稿时间： | 2009/7/10 0:00:00 |
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