加筋土路堤稳定的极限分析  

Limit Analysis of Reinforced Embankment Stability

作　　者：阙云[1] 凌建明[1] 袁燕[2] 

机构地区：[1]同济大学道路与交通工程教育部重点实验室,上海200092 [2]福州大学土木工程学院,福建福州350108

出　　处：《同济大学学报（自然科学版）》2008年第8期1079-1084,共6页Journal of Tongji University:Natural Science

基　　金：交通部西部交通建设科技项目(200431882206);福州大学人才基金资助项目(826408)

摘　　要：为了完善加筋土路堤稳定的极限分析设计方法,对加筋土路堤稳定的极限分析计算方法进行研究.根据塑性极限分析上限定理,结合传统条分法,建立了加筋土路堤稳定性安全系数计算式.运用该计算式与瑞典法、荷兰法以及我国加筋土路基设计规范推荐公式,分别探讨了重度、粘聚力、内摩擦角、筋材设计抗拉强度和路堤高度等因素对加筋土路堤稳定性的影响.研究结果表明,本文公式与荷兰法、瑞典法计算结果较为接近.因此,本文公式作为评价加筋土路堤稳定的方法合理,可为加筋土路堤稳定设计提供参考.A research is made of the limit analysis of stability calculation of reinforced embankment to perfect the design method of limit analysis of reinforced embankment. Based on limit analysis plasticity theory and traditional slice method, a formula was built to calculate the safety factors about stability of the reinforced embankment. Then this formula,Dutch method, Sweden method and the method of Chinese designing standard of reinforced embankment were introduced separately to explore the influence of the factors such as unit weight, cohesion, internal friction angle, geosynthetics tensile strength and the height of embankment on reinforced embankment stability. The calculated results of the formula of this paper are close to those of Dutch method and Sweden method. So, the formula of this paper can be reasonably regarded as a method to evaluate stability of reinforced embankment, and the conclusions can provide the reference for the design of reinforced embankment.

关 键 词：加筋土路堤 稳定 极限分析 条分法 

分 类 号：TU416.12[建筑科学—岩土工程]