| 三峡库区近水平厚层斜坡滑动稳定性研究——以重庆巫山箭穿洞危岩为例 |
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| 引用本文： | 王文沛,李滨,黄波林,张楠,韩笑.三峡库区近水平厚层斜坡滑动稳定性研究——以重庆巫山箭穿洞危岩为例[J].地质力学学报,2016,22(3):725-732. |
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| 作者姓名： | 王文沛 李滨 黄波林 张楠 韩笑 |
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| 作者单位： | 1.中国地质环境监测院, 北京 100083 |
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| 基金项目： | 国家自然科学基金“库水变动下堆积层滑坡渗透失稳机理研究”（41502305） |
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| 摘 要： | 以重庆巫山箭穿洞近水平巨厚层危岩体为例，通过地质环境条件、基座位移及应力监测数据等分析，总结归纳了危岩体目前的变形和受力状态，发现危岩体的强度仍在持续降低。同时，运用FLAC2D模拟手段，设置了初始天然、初始饱和、临滑、失稳4种模拟工况，研究了危岩基座岩体及泥质条带灰岩层面对危岩体阻滑规律。研究结果表明，基座泥质条带灰岩层强度的持续降低将会使得危岩体处于临滑乃至失稳状态。该稳定性分析也为进一步的防治设计提供了依据。
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| 关 键 词： | 三峡库区 近水平厚层斜坡 箭穿洞危岩体 安全系数 |
| 收稿时间： | 2016/6/25 0:00:00 |
STABILITY ANALYSIS OF SUB-HORIZONTAL THICK-BEDDED SLOPE IN THREE GORGES RESERVIOR AREA: A CASE STUDY OF JIANCHUANDONG DANGEROUS ROCKMASS IN WUSHAN, CHONGQING |
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| WANG Wen-pei,LI Bin,HUANG Bo-lin,ZHANG Nan and HAN Xiao.STABILITY ANALYSIS OF SUB-HORIZONTAL THICK-BEDDED SLOPE IN THREE GORGES RESERVIOR AREA: A CASE STUDY OF JIANCHUANDONG DANGEROUS ROCKMASS IN WUSHAN, CHONGQING[J].Journal of Geomechanics,2016,22(3):725-732. |
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| Authors: | WANG Wen-pei LI Bin HUANG Bo-lin ZHANG Nan and HAN Xiao |
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| Institution: | 1.China Institute of Geo-Environment Monitoring, Beijing 100083, China2.Institute of Geomechanics, Chinese Academy of Geological Sciences, Beijing 100081, China3.Wuhan Centre of China Geological Survey, Wuhan 430223, China |
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| Abstract: | Taking Jianchuandong dangerous rockmass in Wushan for an example, based on analyzsis of geological conditions, displacement of base and stress monitoring data, we summarized the present deformation and stress state of the dangerous rockmass, then found that the strength of it remaining reduce. Meanwhile, using FLAC2D we set up four simulation conditions, including Initial natural, Initial saturation, critical sliding and destabilizing to research the rule of rock base and shale strip limestone when facing up rock slide. The results show that decreasing of base strength of argillaceous limestone will make dangerous rockmass in a state of critical sliding. Stability analysis of the above also provides a basis for further control of the design. |
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| Keywords: | Three Gorges Reservoir sub-horizontal thick-bedding slope Jianchuandong dangerous rockmass factor of safety |
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