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典型文献
Improved Statically Solvable Slice Method for Slope Stability Analysis
文献摘要:
Although slice methods are simple and effective slope stability analysis approaches, they are statically indeterminate. Several modifications of the slice method, such as the Spencer, Morgenstern- Price, and Chen-Morgenstern methods, are statically determinate and solvable as they assume the inter- slice force inclination angle; however, there is a small gap between the assumptions and actual landslide stability analysis. Through reasonable theoretical analysis, the Su slice method provides a reliable approach for determining the inter-slice force inclination angle that can be used in slice analysis to accurately analyse, calculate, and evaluate the stability of landslides. However, the Su slice method requires further research and analysis, especially in terms of the parameter values sin λbi and ρ. In this study, we investigated more accurate methods for calculating the parameters sin λbi and ρ. In addition, an adjustment coefficient (μ) was introduced to improve the solution method for the inter-slice force inclination angle. The inter-slice force inclination and safety factors of three landslides with arc-shaped slip surfaces and one landslide with a polyline-shaped slip surface were analysed and compared using the different slice methods. The improved inter-slice force inclination not only satisfies the calculation of static force equilibrium condition but also satisfies the calculation of both the force and moment equilibrium conditions. The improved method for calculating inter-slice force inclination presented the best correlation. The safety factors calculated using the improved Su slice method were close to those obtained using numerical simulations and the Morgenstern-Price method. Despite negligible differences among the safety factors calculated using the Su slice, improved Su slice, and M-P methods, the accuracy of the improved Su slice method was better than the M-P method in terms of inter-slice force inclination angles which can be useful to improve protection engineering design.
文献关键词:
作者姓名:
Aijun Su;Mingquan Feng;Shan Dong;Zongxing Zou;Jinge Wang
作者机构:
Badong National Observation and Research Station of Geohazards,China University of Geosciences,Wuhan 430074,China;Three Gorges Research Center for Geohazards,China University of Geosciences,Wuhan 430074,China;Changjiang Geotechnical Engineering Corporation,Wuhan 430074,China
引用格式:
[1]Aijun Su;Mingquan Feng;Shan Dong;Zongxing Zou;Jinge Wang-.Improved Statically Solvable Slice Method for Slope Stability Analysis)[J].地球科学学刊(英文版),2022(05):1190-1203
A类:
Statically,Solvable,determinate,polyline
B类:
Improved,Slice,Method,Slope,Stability,Analysis,Although,slice,methods,simple,effective,slope,stability,analysis,approaches,they,statically,indeterminate,Several,modifications,such,Spencer,Morgenstern,Price,Chen,solvable,assume,inter,force,inclination,however,there,small,gap,between,assumptions,actual,Through,reasonable,theoretical,Su,provides,reliable,determining,that,can,used,accurately,evaluate,landslides,However,requires,further,research,especially,terms,values,In,this,study,investigated,more,calculating,parameters,addition,adjustment,coefficient,was,introduced,solution,safety,factors,three,shaped,slip,surfaces,one,were,analysed,compared,using,different,improved,not,only,satisfies,calculation,equilibrium,but,also,both,moment,conditions,presented,best,correlation,calculated,close,those,obtained,numerical,simulations,Despite,negligible,differences,among,accuracy,better,than,angles,which,useful,protection,engineering,design
AB值:
0.413712
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