随机场-贝叶斯方法应用于非饱和土边坡稳定性可靠度分析.

In this paper, the random field-Bayesian method is used to calibrate the geotechnical parameters of the slope engineering, and the stability analysis of the unsaturated soil slope considering the seepage is carried out. Regarding key geotechnical parameters as random field variables related to spatial statistics, the prior distribution of geotechnical parameters, drilling survey data and long-term monitoring data are systematically integrated, and the posterior distribution of geotechnical parameters is calibrated. The method was applied to the stability analysis of Shiliushubao landslide in the Three Gorges Reservoir area, and the results showed that the posterior mean values ​​of the calibrated geotechnical parameters were all smaller than the statistical values ​​of the original borehole survey data. The stability of the slope under the conditions of low water level and heavy rainfall in summer meets the reliability requirements, and no additional reinforcement measures are required to prevent new geological disasters. However, it is recommended that the monitoring system should be kept in working condition for a long time. [ABSTRACT FROM AUTHOR]