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威胁三峡库区安全的大型特大型滑坡崩塌
Alternative TitleThe large and largest landslides and collapses endangering the security of Three Gorges Project
刘新民; 李娜; 乔建平
Corresponding Author刘新民
1987
Source Publication水土保持通报
ISSN1000-288X
Volume7Issue:6Pages:45-55
Other Abstract从拟建三峡大坝坝址三斗坪到重庆,长约600公里的长江河谷两岸,计有滑坡崩塌214处,占据面积100余平方公里,总方量达13.52亿立方米;河谷平均每公里有滑坡崩塌0.36处,土石方量225.32万立方米。在214处滑坡崩塌中,有1,000万立方米以上的大型特大型滑坡崩塌36处。它们集中分布于构造急剧转弯部位,背斜倾没端,向斜翘起端,几组构造线交叉复合地段,构造盆地的边缘和新构造活动相对强烈的上升区。整个河谷岸坡的破坏方式,以基岩顺层滑坡为主,基岩切层滑坡不多;其次是第四系松散堆积层滑坡,约占总滑崩方量的17.73%;崩塌仅占8%左右。这些滑坡崩塌,尤其是大型和特大型滑坡,集中分布在库区的要害部位,对大坝库区的安全有影响。 
;  From Shandouping to Chongqing, 214 landslides and collapses are distributed on the banks (the length is 600km) of the Yangtzi River Valley where Three Gorges Dam would be built. The area is more than 100km~2 and the total volume is 13.52 million m~3. There can be 0.36 land slide and collapse in 1.0km of the valley and the volume is 2.2532 million m~3. Among 214 landslides and collapses, large or the largest ones (over 10 million m~3) are 36. All of them are distributed at the banks of structure, the dipping ends of anticline and the raise ends of syncline, the composite sectors for crossing a few structure line groups, the strong uplifted area for neotectonics and the borders of the structure basin. The destructive ways of the valley and bankslope: the bedding landslide are main; the dissecting landslides are less; and then there loose accumulational landslides of the Quaternary Period occupy 20% of the total volum, the collapses are only about 8%. These landslides and collapses, especially large or the largest landslides are distributed in vital part of reservoir area and will endanger the security of Three Gorges Dam or even the whole of the reservoir.
Keyword滑坡崩塌 三峡库区 特大型滑坡 基岩顺层滑坡 集中分布 堆积层滑坡 万县市 新构造活动 构造盆地
Language中文
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/10002
Collection成都山地所知识仓储(2009年以前)
山地灾害与地表过程重点实验室
Affiliation中国科学院成都地理研究所
First Author Affilication中国科学院水利部成都山地灾害与环境研究所
Recommended Citation
GB/T 7714
刘新民,李娜,乔建平. 威胁三峡库区安全的大型特大型滑坡崩塌[J]. 水土保持通报,1987,7(6):45-55.
APA 刘新民,李娜,&乔建平.(1987).威胁三峡库区安全的大型特大型滑坡崩塌.水土保持通报,7(6),45-55.
MLA 刘新民,et al."威胁三峡库区安全的大型特大型滑坡崩塌".水土保持通报 7.6(1987):45-55.
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