Classification Evaluation of Loess Slope Stability Based on the Combination Weight of Game Theory
Shuai Zhang, Nianqin Wang, Xiaoling Liu, Xiaopeng Chen · IOP Conference Series Materials Science and Engineering · 2018
Rational classification evaluation of loess slope stability has a guiding significance on the prevention and control of geological hazards. The key of classification evaluation of loess slope stability is to construct evaluation indices system and determine the indices weights, which can be obtained through various approaches currently. Therefore, according to the characteristics of slope hazards and geo-environmental conditions of Mizhi County, the evaluation indices system was constructed by six indices, namely, slope shape, slope gradient, slope height, types of geomorphic unit, lithology and average annual precipitation. And based on the thought of game theory, the combination weights of indices were figured out by different expert weights. Taking the loess slope located at Xinchengqu Village as an example, stability classification of the loess slope was analyzed using the methods mentioned above, and the main results showed that stability classification of the loess slope was unstable whether before sliding or after sliding.