| 金沙江中游滑坡堵江事件及古滑坡体稳定性分析 |
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| 引用本文： | 崔杰,王兰生,徐进,王小群,姚强.金沙江中游滑坡堵江事件及古滑坡体稳定性分析[J].工程地质学报(英文版),2008,16(1):6-10. |
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| 作者姓名： | 崔杰 王兰生 徐进 王小群 姚强 |
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| 作者单位： | 1.成都理工大学地质灾害防治与地质环境保护国家专业实验室 成都 610059; |
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| 基金项目： | 致谢 衷心感谢长江水利委员会李会中教授,王团乐工程师的帮助和支持. |
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| 摘 要： | 金沙江中游某拟定水电站坝址区下游发育一段非基质结构岸坡,岸坡覆盖层厚度巨大,物质组分均由白云质灰岩构成,其结构密实,表部胶结良好,形成呈似角砾状堆积体结构特征。对这套堆积体物质结构特征进行了研究,确定为平推式滑坡的成因模式。该滑坡造成了金沙江中游一次大规模的堵江事件,采样进行14C测年分析,结果显示滑坡发生时代约为19,000a前。对该岸坡段调查分析表明,该古滑坡堆积体结构长期处于稳定状态,现今并无变形复活迹象,其整体不存在失稳条件。
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| 关 键 词： | 堆积体 滑坡 堰塞湖 变形机制 稳定性 |
| 文章编号： | 1004-9665/2008/16(01)-0006-05 |
| 收稿时间： | 2007-05-18 |
| 修稿时间： | 2007-09-06 |
STABILITY ANALYSIS OF OLD LANDSLIDE FOR A POSSIBLE ANCIENT LANDSLIDE EVENT BLOCKING MIDDLE OF JINSHA RIVER |
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| CUI Jie,WANG Lansheng,XU Jin,WANG Xiaoqun,YAO Qiang.STABILITY ANALYSIS OF OLD LANDSLIDE FOR A POSSIBLE ANCIENT LANDSLIDE EVENT BLOCKING MIDDLE OF JINSHA RIVER[J].Journal of Engineering Geology,2008,16(1):6-10. |
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| Authors: | CUI Jie WANG Lansheng XU Jin WANG Xiaoqun YAO Qiang |
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| Institution: | 1.National Laboratory of Geohazard Prevention and Geoenvironment Protection|Chengdu University of Technology, Chengdu 610059;2.College of Water Resource and Hydropower, Sichuan University| Chengdu 610072 |
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| Abstract: | There is a bank slope of non-matrix structure at some planning Hydroelectric Power Station on the middle of the Jinsha River.The spread of the bank slope is extraordinary thick,which mainly composed with dolomatic brecciated accumulation body.The slope induced a massive block event in the middle of Jin-sha river.Based on the analysis of sample,it happened 19,000 years ago.The landslide investigation has shown that the ancient accumulation body slope is stable.There is no deformation indication and condition of destabilization of the whole slope. |
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| Keywords: | Brecciated accumulation body Ancient landslide Deformation mechanism Stability analysis |
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