基于管道变形的滑坡位移反分析研究

Research on Back Analysis of Landslide Displacement Based on Pipeline Deformation

滑坡的抗剪参数取值较为困难,多依赖于室内试验,与实际参数有出入。分析了位移反分析原理并建立了计算模型,提出了基于管道最大挠度变形量对埋地管道滑坡的抗剪参数进行反分析计算的方法。实际算例计算表明,该方法有助于修正滑坡抗剪参数取值,为治理工程设计提供参考。

It is difficult to determine the value of shear parameters of landslide, and depends on laboratory test. And the determined value of shear parameters is different from the actual parameters. Therefore, the principle of displacement back analysis is analyzed, the calculation model is established, and the back analysis calculation method of shear parameters of buried pipeline landslide based on the maximum deflection of pipeline is proposed. The practical example shows that this method is helpful to modify the value of landslide shear parameters and provide reference for the design of treatment engineering.