Stability Analysis of the Slope of West Wulongsi Dump
The large scale of open-pit dump,the complex and changeable geological conditions and the uncertainty of external environmental factors lead to the stability analysis of dump still facing many chal-lenges.Taking west Wulongsi dump site as study object,the stability of the circular sliding surface of the dump slope is calculated by using the simplified Bishop method in the limit equilibrium method.The result shows that the safety stability coefficients under normal operating conditions and non-normal operating con-ditions are 1.145 and 1.062 respectively,which met the specifications and design requirements,indicating that the whole dump site and the step slope are in a basically stable state.It is suggested to not disturb the dump by loading and excavation in the later stage to avoid affecting the stability of slope.
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