In order to analyze extreme weather to abandon the effect on the stability of the clay,through taking a mountain railway and soil field as an example,based on the Mohr-Coulomb Theory,the study builds soil field in the model under different working conditions with Visual Slope software,conducts comprehensive analysis through a variety of methods and soil field overall stability and its internal stability;considers rain condition full of soil water status and the influence of the weak interface;and calculates the stability coefficient of the slope sliding along the original ground with transfer coefficient method.The stability state of the abandoned soil field under different working conditions is analyzed,the stability of the abandoned soil field is evaluated by a variety of methods,and the stability variation law of the abandoned soil field under different working conditions is obtained,which can provide reference for the stability evaluation and analysis of the same type of abandoned soil field.
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