American Society of Civil Engineers


Analysis of Excavating High Slope by Means of Finite Element Method


by Hong Liu, (Department of Geotechnical Engineering, Southwest Jiaotong University, Chengdu 610031, China. E-mail: liu.h12345678901@163.com), Tao Yang, (Department of Geotechnical Engineering, Southwest Jiaotong University, Chengdu 610031, China), and Yongtao Qin, (Chengdu Hydroelectric Investigation and Design Institute, China Hydropower Engineering Consulting Group Co. Chengdu 61007, China)
Section: Transportation Facilities, Infrastructure, and Pavements, pp. 1660-1665, (doi:  http://dx.doi.org/10.1061/41184(419)274)

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Document type: Conference Proceeding Paper
Part of: ICTE 2011
Abstract: As a specific instability of high and steep rock slope, it is different from the sliding one. Geologic and topographic conditions, such as the deeper down-cutting of river and weak layers etc are getting more complicated especially in the southwest of China. High initial stress, and complicated deformation and failure processes, they all can be regarded as the results from rapid unloading under the high initial stress conditions. It is very important academic and practical significance to use 2D FEM method directly in the slope stability analysis. In this paper, the capabilities of ANSYS applicable to the high slope with initial stress are introduced, and the analysis conclusions are proved to be very close to data from testing site. In contrast with the result of other software such as FLAC 3D and the data from testing site, we can draw a conclusion that, to some extent, this analysis method is right.


ASCE Subject Headings:
Excavation
Slopes
Finite element method
Rocks