公路改扩建工程滑坡成因分析和整治对策

Analysis on the Causes of Landslides in Highway Reconstruction and Expansion Projects and Remediation Measures

公路改扩建施工过程中,经常会出现路基滑坡病害。为提高路基边坡的稳定性与安全性,以104国道苍南段公路改扩建工程中的某段工程路基滑坡为研究对象,根据该工程的滑坡段的地质特征条件,对路基滑坡的成因及岩土体特性进行分析,并对路基滑坡的稳定状态进行了验算和评价。最后,根据路基滑坡的实际情况提出了抗滑桩设计,以此实现了对滑坡的治理。并基于数值模拟双排抗滑桩优化方案,以期为今后类似滑坡治理工程提供相应的参考。

During the construction process of highway renovation and expansion,roadbed landslides often occur.In order to improve the stability and safety of the subgrade slope,the subgrade landslide of a certain section of the reconstruction and expansion project of Cangnan section of China National Highway 104 is taken as the research object.According to the geological characteristics of the landslide section of the project,the causes of the subgrade landslide and the characteristics of rock and soil mass are analyzed,and the stability of the subgrade landslide is checked and evaluated.Finally,based on the actual situation of roadbed landslides,a design of anti-slip piles was proposed to achieve landslide control.And based on numerical simulation,the optimization scheme of double row anti slip piles is proposed to provide corresponding reference for similar landslide treatment projects in the future.