【摘要】 以渝怀铁路梅江河右岸DK409+989.4～DK410+020段土钉墙支护结构为研究对象,取有代表性试验段在土钉上安设钢弦式拉力计测试边坡开挖支护后土钉应力分布。采用强度折减非线性有限元法分别对支护后典型断面稳定性进行分析计算。从现场试验和理论计算两个方面对土钉墙加固顺层石质路堑的受力机理和加固效果进行研究。分析结果表明:采用土钉墙支护后的该顺层岩质边坡处于稳定状态。更多还原

【Abstract】 The soil nailing structure is used as the slope lining structure for DK409+989.4～DK410+020 of Yuhuai Railway at fight bank of Meijiang fiver.The steel rod type tensiometer is installed on the soil nail at the typi- cal section of soil nailing wall to measure the tension force distribution along the soil nail.The tension force distribu- tion of soil nail is analyzed using the measured result.The nonlinear finite element method combined with strength pa- rameter reduction method is used to analyze the soil nailing wall stability.The strength parameter reduction analysis result shows that the soil nailing wall is in stable state.更多还原