Real-time stability evaluation of landslide based on the comparison of sliding surface and shear plane in triaxial test

DOI

10.2991/icreet-16.2017.92How to use a DOI?

Keywords

Landslide; monitoring data; sliding surface; shear plane; real-time stability; numerical analysis.

Abstract

The deformation characteristics of soil element depend on it's stress state, so theoretically, if the soil sampling from sliding surface of landslide was triaxial tested under the same stress state, the mechanic deformation behavior of shearing plane in test sample would have correspondence with that of sliding surface. Based on the information of landslide sliding surface confirmed by site monitoring system, the corresponding relationship of mechanic deformation behavior was searched between landslide sliding surface and shearing plane of laboratory triaxial test. The sliding stability factor of landslide was defined to be the ratio of the peak shear resistance to the real-time shear force played of soil on sliding surface, through which the real-time stability evaluation method of landslide was established based on the monitoring data. The method set up the relationship between the monitoring data on site and internal stability mechanism of landslide, which overcame the deficiency of landslide stability prediction and evaluation usually from the perspective of mathematical statistics, and also avoided the consideration of many uncertain complex factors. The method was used to evaluate the stability of a numerical slope model and compared with three other traditional methods. Although the evaluation result was slightly higher than the traditional methods, it's within a reasonable range, and the new method can be used to do the real-time evaluation which overcame the shortage of traditional method only for static.

Copyright

© 2017, 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  - Shunkai Liu
AU  - Wei Hu
PY  - 2017/03
DA  - 2017/03
TI  - Real-time stability evaluation of landslide based on the comparison of sliding surface and shear plane in triaxial test
BT  - Proceedings of the 2016 4th International Conference on Renewable Energy and Environmental Technology (ICREET 2016)
PB  - Atlantis Press
SP  - 550
EP  - 554
SN  - 2352-5401
UR  - https://doi.org/10.2991/icreet-16.2017.92
DO  - 10.2991/icreet-16.2017.92
ID  - Liu2017/03
ER  -