[1]乐琪浪,王洪德,薛星桥,等.三峡库区水位变化与花园养鸡厂滑坡变形特征关系[J].水文地质工程地质,2011,38(6):68-73.
 LE Qi-lang,WANG Hong-de,XUE Xing-qiao,et al.Relationship between the deformation features of the Huayuanyangjichang landslide and water level changes in the Three Gorges Reservoir area[J].Hydrogeology & Engineering Geology,2011,38(6):68-73.
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三峡库区水位变化与花园养鸡厂滑坡变形特征关系()
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《水文地质工程地质》[ISSN:1000-3665/CN:11-2202/P]

卷:
38卷
期数:
2011年6期
页码:
68-73
栏目:
OA栏目
出版日期:
2011-11-15

文章信息/Info

Title:
Relationship between the deformation features of the Huayuanyangjichang landslide and water level changes in the Three Gorges Reservoir area
作者:
乐琪浪;王洪德;薛星桥;高幼龙;王刚;
中国地质调查局水文地质环境地质调查中心;
Author(s):
LE Qi-langWANG Hong-deXUE Xing-qiaoGao You-longWANG Gang
Center for Hydrogeology and Environmental Geology,China Geological Survey,Baoding 071051,China
关键词:
边坡工程三峡库区水位变化滑坡变形监测综合分析
Keywords:
slope engineering Three Gorges reservoir water level changes deformation features of landslide monitoring synthetic analysis
分类号:
P642.22
文献标志码:
A
摘要:
2010年10月三峡库区蓄水至175m,花园养鸡厂滑坡发生了较为强烈的变形。在对新生裂缝详细调查研究、GPS观测及深部位移监测数据分析的基础上,对库水位变化所引起的滑坡变形特征及其成因进行了综合分析。研究结果表明:蓄水后,滑坡前缘因受到加载及库水侵蚀作用,在中前部产生9条NNW向横向张性裂缝,裂缝具有明显的分段性,表现为相似的发育模式。该滑坡属于典型的渐进后退式滑坡,由3个滑块组成,在裂缝SW段伴随拉张和剪切双重作用,反应滑块往SWW向滑动的同时伴随一定程度的右旋滑移,其失稳模式为有多重滑面的牵引破坏模式。在滑体的后缘及左侧变形较小。2007年以来滑坡经历了4次较大的变形,并与库区水位的变化周期相吻合,每次裂缝基本上都是在库区水位短时间内大幅度上升形成的。
Abstract:
After the impoundment to 175 m level in October 2010,serious deformation occurred in the Huayuanyangjichang landslide.Based on the detailed investigation of the new cracks,GPS observations and deep displacement monitoring data,the deformation and reasons of the landslide caused by water level changes are analysed comprehensively.The results show that it formed 9 new extension cracks striking NNE in the lower and middle parts caused by water loading and erosion at the front edge of the landslide

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备注/Memo

备注/Memo:
基金:国家重大工程地质灾害预警专项(三峡库区地质灾害专业监测)
更新日期/Last Update: 2011-11-15