摘要
某高速公路段边坡治理工程采用锚杆、锚索、喷混面层、抗滑桩、挡土墙作为支护形式,锚杆的水平间距为2.4 m,竖向间距为2.0 m,锚索与抗滑桩上部连接。数值模拟以Midas/GTS有限元强度折减法(SRM)原理为计算基础,分析边坡的稳定性,计算得出边坡的安全稳定系数、变形位移与剪切滑动面,并综合分析采取支护措施后的计算结果。分析结果显示,基于弧长法分析的SRM能有效模拟边坡破坏形式,直观反映滑动面及土体位移;边坡稳定安全系数因支护措施得以提高。该支护方法可为类似工程提供参考。
Anchor,anchor cable,spray surface layer,anti-slip pile and retaining wall are used as the supporting form in the slope treatment project of an expressway section.The horizontal spacing of the anchor bars is 2.4 m,and the vertical spacing is 2.0 m.The anchor cable is connected with the upper part of the anti-slip pile.Based on the Midas/GTS Finite Cell Strength Reduction(SRM)principle,the numerical simulation analyzes the stability of the slope,calculates the safety and stability coefficient,deformation displacement and shear sliding surface of the slope,and then comprehensively analyzes the calculation results after the support measures are taken.The analysis results show that SRM based on arc length analysis can effectively simulate the form of slope damage,visually reflect the sliding surface and soil displacement,and the slope stability and safety coefficient increases with the support measures.Thus,this support method can provide reference for similar projects.
作者
范卫琴
张仁巍
康海鑫
颜玲月
FAN Weiqin;ZHANG Renwei;KANG Haixin;YAN Lingyue(School of Architecture and Civil Engineering, Sanming University, Sanming 365004;Key Laboratory of Engineering Material & Structure Reinforcement of Fujian Province University, Sanming 365004)
出处
《常州工学院学报》
2021年第3期11-15,共5页
Journal of Changzhou Institute of Technology
基金
福建省自然科学基金项目(2018J01515、2018J01514)
三明学院科学研究发展基金暨福建省中青年教师教育科研项目(JAT200643、B202034、JT180505、B201816)
三明市引导性科技项目(2019S36)
工程材料与结构加固福建省高等学校重点实验室开放基金项目(B170001-8)。
