The loess slope stability study

DOI

10.2991/icsem.2013.8How to use a DOI?

Keywords

loess slope, circular arc method, the rate of top surface slope

Abstract

We often use circular arc method when calculating the stability of the slope. But this kind of method ignores how the slope rate of top influences stability of slope. In this thesis, a destruction model of loess slope is set up to study the regular rule of how the slope rate of top influences stability of slope, which will have great guiding significance in the construction of slopes in highway engineering. With the rapid development of economy in China, the northwest loess region has become the important area in energy development and construction of China. When roads are built in the loess area, it is inevitable that there will appear a lot of cutting slope. Especially in recent years with the implementation of the western economic development policy, a lot of high cutting slopes which are taller than 30m are met in the construction of high-grade highways in loess region of north Shaanxi, and there are a lot of accidents caused by instability of slope under sliding. According to the survey, instability of slopes including natural ones, railway, highway and open-air mine often happens in rainy season, especially under heavy rains, and there will be a lot of phenomenon such as landslide, collapse and instability of slope, which often cost a lot. The mechanics model of circular arc method is simple, and the quantitative evaluation index can be got, i.e. safety coefficient, which can be accepted easily. In practical calculation, what slope rate of surface influences the stability of slope is ignored in circular arc method, and the potential sliding surface cannot be sure. Therefore, in this paper, destruction model of loess slope is established according to the actual situation of loess slope with consideration of slope rate of surface so that a program which analyzes stability of slope is made to solve the problem.

Copyright

© 2013, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Shi-qiang Xu
AU  - Tao Zhao
PY  - 2013/04
DA  - 2013/04
TI  - The loess slope stability study
BT  - Proceedings of the 2nd International Conference On Systems Engineering and Modeling (ICSEM 2013)
PB  - Atlantis Press
SP  - 36
EP  - 39
SN  - 1951-6851
UR  - https://doi.org/10.2991/icsem.2013.8
DO  - 10.2991/icsem.2013.8
ID  - Xu2013/04
ER  -