收稿日期: 2006-02-22
修回日期: 2006-08-20
网络出版日期: 2006-10-15
基金资助
国家自然科学基金项目“车辆长持时振动作用下滑坡机理研究”（编号：40572157）资助.
Simulation and Analysis of Slope Excavation and Its Stability in the Highway of Southeast Tibet, China
Received date: 2006-02-22
Revised date: 2006-08-20
Online published: 2006-10-15
路勋 , 谷天峰 , 王家鼎 . 藏东南公路边坡开挖模拟及稳定性分析[J]. 地球科学进展, 2006 , 21(10) : 1070 -1074 . DOI: 10.11867/j.issn.1001-8166.2006.10.1070
Taking a certain slope of Sichuan-Tibet Highway as an example, this study simulated the slope excavation and analyzed the stability before and after its excavation. According to engineering geology investigation on the spot and the relevant data, the original landforms before the highway's building appeared again, thereby the calculated model being developed. Fast lagrangian analysis of continua method was employed to simulate the distribution of internal stress, the change of displacement and the course of slope instability. The results of strength reduction method showed that the excavation of roadcut was the main cause of slope instability.
Key words： Slope; Excavation; FLAC; Strength reduction
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