重庆某高速公路滑坡原因分析及治理措施

Cause Analysis and Treatment Measures of Landslide on Highway in Chongqing

为了治理重庆某高速公路出现的滑坡,通过对滑坡路段的高边坡进行研究,从滑坡地质特征、滑动变形机理着手,采用滑坡极限平衡反算法对不同工况下路基高边坡进行稳定性分析,确定支挡剩余下滑力,采取有效抗滑支挡设计和防排水设计,并对关键治理措施挖孔抗滑桩从施工准备、桩身开挖、地质描述、动态设计及灌注混凝土等重点工艺进行阐述,该处治方案可为类似的滑坡治理工程提供借鉴。

In order to control the landslide of a highway in Chongqing,the high slope of the landslide section is studied.Starting from the geological characteristics and sliding deformation mechanism of the landslide,the stability of the subgrade high slope under different working conditions is analyzed by using the inverse algorithm of landslide limit equilibrium.The remaining sliding force of the retaining wall is determined.The effective anti sliding retaining design and waterproof and drainage design are adopted,and the key treatment measures are excavated.The construction preparation,pile body excavation,geological description,dynamic design,pouring concrete and other key technologies are described.The treatment scheme can provide reference for similar landslide treatment projects.