摘要
通过区域地质调查、大比例尺平面图测绘、滑坡微地貌和变形破坏特征测量、地球物理勘探等手段,对国道212线石阏子滑坡特征和形成演化机制进行了系统研究。研究成果表明,它并非是在洪积扇或泥石流基础上发育的滑坡,而是在区域性断裂带基础上,多次滑动形成的"立交桥"式特大型滑坡。研究结果为G212线石阏子滑坡稳定性评价和治理,以及为拟建的兰州-重庆-海口高速公路和兰渝铁路的选线和设计提供理论指导。
A systematic research on characteristics and mechanism of the Shi＇ ezi landslide at the national highway G212 was achieved in terms of such methods as regional geological investigation, large scale topographical map, measurement of micro- physiognomy and failure and geophysical reconnaissance survey. It shown that the landslide was not developed by diluvium or debris flow but by fault zone. It is a very large scale landslide with structure of “grade separation bridge” because of sliding or avalanching time after time. The research result can not only take a theoretic guide role in stability evaluation and treatment of the landslide for G212 highway but also in line-selecting and design for Lanzhou-Chongqing- Haikou express way and Lanzhou-Chongqing railroad to be built.
出处
《中国地质灾害与防治学报》
CSCD
2007年第3期39-43,共5页
The Chinese Journal of Geological Hazard and Control
基金
西部交通科技建设项目(200231800036)
关键词
滑坡
演化机制
断层带
C212线
landslide
evolution mechanism
fault zone
G212 highway
