高速公路复合地基承载力可靠度研究  

Research on Bearing Capacity Reliability of Expressway Composite Foundation

作　　者：梁玉龙 

机构地区：[1]新疆交通规划勘察设计研究院,新疆乌鲁木齐830094

出　　处：《西部交通科技》2016年第10期1-3,75,共4页Western China Communications Science & Technology

摘　　要：为了研究桩长、桩间距和路堤填土高度对高速公路复合地基承载力可靠度的影响,文章根据复合地基可靠度原理,采用Matlab软件进行复合地基承载力可靠度计算分析,结果表明:抽样次数>100万时的可靠度可以满足要求;桩长为10m、桩距为1.5m或桩长为13m、桩距为1.7m的复合地基处理方案能满足要求;桩间距和可靠度呈线性关系;路堤填筑高度与可靠度呈三次多项式曲线关系。In order to study the impact of pile length,pile spacing and embankment soil-filling height on the bearing capacity reliability of expressway composite foundation,based on the reliability principle of composite foundation,and by using the Matlab software,this article calculated and analyzed the bearing capacity reliability of composite foundation,the results showed that：the reliability after over 1 million times of sampling can meet the requirements;the composite foundation treatment programs with pile length 10 m and 1.5m pile spacing or with pile length 13 m and 1.7m pile spacing can meet the requirements;the pile spacing and reliability show the linear relationship;the embankment construction height and reliability show the cubic polynomial curve relationship.

关 键 词：高速公路 软土 复合地基 可靠度 MATLAB软件 

分 类 号：U416.1[交通运输工程—道路与铁道工程]