| 复杂含水条件下滑坡的稳定性分析及治理措施 |
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| 引用本文： | 李晓军 马惠民 ,吴红刚.复杂含水条件下滑坡的稳定性分析及治理措施[J].力学学报,2010,18(1):60. |
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| 作者姓名： | 李晓军 马惠民 吴红刚 |
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| 作者单位： | （中铁西北科学研究院有限公司 兰州 730000） |
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| 摘 要： | 成渝铁路K492滑坡为一大型堆积层老滑坡，自1998年开始变形以来，每年雨季出现线路外移、下沉和地面开裂现象，且日趋加大。随着地下水位和前缘长江水位的变化，该滑坡呈阶段性滑动变形，它的形成与发展以孔隙水压力为主。确定了该滑坡在不同水位条件下的安全系数，在特大洪水位下处于不稳定状态。同时提出根据水位的变化、裂隙的发育情况及裂隙水位计算其安全系数，对复杂含水的堆积层滑坡应以支挡和排水综合治理。
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| 关 键 词： | 老滑坡 地下水 变形机理 危害治理 |
A CASE STUDY FOR STABILITY ANALYSIS AND HAZARD CONTROL OF ONGOING LANDSLIDE |UNDER COMPLEX GROUNDWATER CONDITIONS |
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| LI Xiaojun |MA Huiming |WU Honggang.A CASE STUDY FOR STABILITY ANALYSIS AND HAZARD CONTROL OF ONGOING LANDSLIDE |UNDER COMPLEX GROUNDWATER CONDITIONS[J].chinese journal of theoretical and applied mechanics,2010,18(1):60. |
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| Authors: | LI Xiaojun |MA Huiming |WU Honggang |
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| Institution: | (Northwest Research Institute of China Railway Engineering Corporation, Lanzhou 730000) |
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| Abstract: | The K492 landslide on Chengyu railway has been worsening from its first deformation in 1998. The phenomenon of road base deformation and ground crack can often be seen in rainy season. With the change of groundwater level and the water level in Yangtze River, the landslide is still in the deformation of stage. Its formation and development is mainly due to the pore water pressure in the slope. This paper determines the factors of safety associated with the landslide in different water levels. The results indicate that its instability is at the major flood level. At the same time, it is calculated the factor of safety according to the changes of water level, the development of fissures and the crack -water level. The landslide of complex water-bearing accumulation horizon should be controlled in a comprehensive way of retaining structures and drainage. |
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| Keywords: | Old landslide Groundwater Deformation mechanism Hazard control |
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