摘要
Abstract
In order to solve the problem of cracking and sliding of expressway roadbed slope,a combination design scheme of anchor rod+eco-logical reinforcement+anti-slide pile was proposed with an expressway in Beijing as an example,and the stability and construction rationality of the design scheme were verified.The results show that the combined slope reinforcement scheme can significantly improve the shear strength,compressive modulus and permeability coefficient of soil.After reinforcement,the safety factor of slope stability is higher than the design require-ments under all conditions.After reinforcement,the maximum slope settlement is 13.5 mm and 12.9 mm respectively,the maximum horizontal displacement of anti-slide pile is1.66 mm and1.36 mm respectively,and the maximum axial force of anchor rod is 13.2 kN and 15.2 kN re-spectively,all of which meet the design requirements.The reasonableness and reliability of the combined design scheme are verified.关键词
高速公路/路基边坡/开裂滑移/加固技术Key words
Expressway/Roadbed slope/Cracking slip/Reinforcement technology分类
交通工程
