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The investigation and optimum design for the bedding slope in an expressway
Pages: 21-25
Year: Issue:  4
Journal: Geotechnical Investigation & Surveying

Keyword:   bedding slope; breadage model; stability evaluation; optimum design angle of slope; reinforcement design ;
Abstract:  It is known that the stability of the bedding slope of expressway directly affects the running safety of road,therefore,it is important to summarize its characteristics and determine its study methods.This paper presents a summary of its characteristics and an optimum design method.Then,taking an expressway of Lianyungang as an example,we discuss the application of this optimum design method.Namely,the breakage model is analyzed with coordination projection mapping method and the slope stablility is evaluated with the method of limit equilibrium based on the analysis of the engineering geology conditions.After that,the sensitivity analysis for the slope stability is done using the method of limit equilibrium.On the precondition of ensuring the whole stability of slope and the economic reasonability,the paper also advances the optimum angle of design,the anchor and spray concrete scheme of the slope improvement design.The example also shows that this optimum design method is systematic ...
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