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| 三峡库区地表泥灰岩边坡变形机理研究 | |
| 引用本文： | 刘海燕,李增学,李淑进,吕大炜,王平丽.三峡库区地表泥灰岩边坡变形机理研究[J].人民长江,2010,41(2):6-8. |
| 作者姓名： | 刘海燕 李增学 李淑进 吕大炜 王平丽 |
| 作者单位： | 1. 山东科技大学,地质科学与工程学院,山东,青岛,266510;山东科技大学,山东省高校沉积成矿作用与沉积矿产重点实验室,山东,青岛,266510 2. 微山金源煤矿,山东,微山,277606 3. 山东科技大学,地质科学与工程学院,山东,青岛,266510 |
| 基金项目： | 山东省高校沉积成矿作用与沉积矿产重点实验室(山东实验大学)开放基金 |
| 摘 要： | 三峡库区地表巴东组泥灰岩地层,大范围内岩体结构松动。为了查明原因,从沉积环境以及沉积地层进行分析,得出的结论为:嘉陵江组顶部膏岩地层在临江部位发生溶蚀,溶腔顶部巴东组地层在重力作用下发生坍塌,导致地表岩体变形破坏。巴东组泥灰岩地层受重力和蠕变作用后,发育多组垂直裂隙,使地表岩层表现为整体性松动现象。因此地表岩体结构松动破碎的原因是深部石膏层岩溶塌陷与表生溶蚀改造作用共同导致的结果,前者为控制因素,后者为叠加效应。 |
| 关 键 词： | 泥灰岩地层 膏溶塌陷 结构沉陷 巴东组 三峡库区 |
Research on deformation mechanism of surface marl slope in Three Gorges Reservoir Area |
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| LIU Haiyan,LI Zengxue,LI Shujin,LU Dawei,WANG Pingli.Research on deformation mechanism of surface marl slope in Three Gorges Reservoir Area[J].Yangtze River,2010,41(2):6-8. | |
| Authors: | LIU Haiyan LI Zengxue LI Shujin LU Dawei WANG Pingli |
| Affiliation: | LIU Haiyan1,2,LI Zengxue1,LI Shujin3,LU Dawei1,WANG Pingli1(1.College of Geologic Science , Engineering,Sh,ong University of Science , Technology,Qingdao 266510,China,2.Key Laboratory of Depositional Mineralization , Sedimentary Mineral of Sh,ong Province,3.Jinyuan Coalmine,Weishan 277606,China) |
| Abstract: | The rock mass structure of Badong marlite strata becomes loose in Three Gorges Reservoir Area.In order to find out the causes,the sedimentary environment and sedimentary formation are analyzed.It is concluded that the gypsum strata of Jialingjiang group by the river is corroded and the upper strata of Badong group collapses under the gravity action,resulting in distortion and destruction of rock mass on slope.After action of force,the Badong marlite strata developed into many groups of vertical cracks and t... |
| Keywords: | marlite strata karst collapse of gypsum strata structure subsidence Badong group Three Gorge Reservoir Area |
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