Stability Analysis of North Ring Road Slope in Wafangdian City
The monitoring and prediction analysis of slope instability has always been one of the important topics in slope engineering stability research.Due to the complexity of geological conditions,the qualitative and quanti-tative analysis of engineering geology has extremely important engineering and research significance in stability evaluation.In this study,the slope of Beihuan Road in Wafangdian City,Liaoning Province was selected as the re-search object,and the slope was divided into AB and BC sections.The stability of the slope was analyzed qualita-tively by terra-plano projection method and quantitatively by arc sliding method.The results of the ErP projection method showed that the slopes of AB and BC sections were in an under stable state,and there was a possibility of collapse and falling block.The results of the circular sliding method show that the safety factors of the slope in AB section and BC section are 1.180 and 1.335 respectively,which indicates that the slope is basically stable,but under the influence of adverse factors,local landslide and block fall are easy to occur.Suggestions are put forward for slope treatment.Prestressed anchor cable+concrete panel support system or flexible protection system is a-dopted,and SNS(Safety Netting System)flexible protection net is laid for support,so as to minimize the impact in the construction process.