Mechanism Analysis and Treatment Measures of Landslide at the Filling and Excavation Intersection Roadbed of a Certain Expressway
[Purposes]Roadbed landslides at the intersection of filling and excavation on highways are common and pose a serious threat to the driving safety of highways.Therefore,it is of great significance to identify the mechanism of this disease and carry out targeted treatment design.[Methods]This article takes a roadbed landslide at the intersection of filling and excavation on a certain highway as the re-search object.By using exploration methods such as drilling and indoor testing,the formation mechanism of the roadbed landslide is analyzed.Based on the transfer coefficient method,the stability of the land-slide is calculated,and the overall stability of the landslide is evaluated.[Findings]The results show that the roadbed landslide is in an unstable state.Analysis shows that due to rainfall infiltration,the strength of the roadbed soil decreases,and the cohesion and internal friction angle of the filled soil are smaller than those of the silty clay,ultimately leading to uneven settlement of the road surface.[Conclu-sions]After using comprehensive treatment measures,the construction inspection design scheme achieved the treatment effect and provided reference for similar working conditions in the future.
filling and excavation boundaryroadbedlandslidestability analysistreatment measures
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