土工格室+碎石垫层结构体的稳定性分析  

Stability Analysis of Geocell+Gravel Cushion Structure

作　　者：赵明华[1] 陈艳平[1] 陈昌富[1] 杨宇[1] 

机构地区：[1]湖南大学土木工程学院,湖南长沙410082

出　　处：《湖南大学学报（自然科学版）》2003年第2期68-72,共5页Journal of Hunan University:Natural Sciences

基　　金：湖南省交通厅科技发展基金资助项目 ( 2 0 0 14 4)

摘　　要：传统的圆弧条分法未能充分考虑加筋材料对于软基稳定性的影响 ,其计算结果偏于保守 .通过对土工格室 +碎石垫层处理的软弱路基和一般加筋软弱路基的加固机理以及破坏模式的比较分析 ,提出采用极限承载力概念的滑块平衡分析法对加筋路基的稳定性进行分析 .其工程实例计算结果表明 ,该方法更符合土工格室 +碎石垫层处理的软弱路基的真实可能破坏机理 。Traditional circular sliding plane method doesn't consider the influence of reinforced materials to the stability of weak subgrade and the results tend to be conservative.By analyzing and comparing the reinforcement mechanism and the failure mode of weak subgrade reinforced by geocell gravel cushion with that by common geosynthetics,the wedge equilibrium method based on the concept of ultimate bearing capacity is proposed.Results of application in engineering show that the method presented in this paper is more suitable for the analysis of soft subgrade reinforced by geocell gravel cushion and tends to be simple and reasonable.

关 键 词：土工格室 圆弧条分法 极限承载力 滑块平衡分析法 

分 类 号：TU472.35[建筑科学—结构工程]