加宽高速公路坡桩承载力设计与变形控制  

Bearing Capacity Design and Settlement Control on Slope-Pile of Widening Highways

作　　者：高啸雁 

机构地区：[1]河南省高速公路发展有限公司,郑州450000

出　　处：《河南科学》2007年第4期625-629,共5页Henan Science

基　　金：河南省科技攻关项目资助(0624220010)

摘　　要：加宽高速公路的坡桩设置具有路基部分后处理的原理,部分桩身处在较好的路基填土层内,其锚固作用如何考虑,桩帽的设置会带来桩的工作性状的变化,特别是土拱作用,使得坡桩的承载力和变形计算不能按一般条件下的桩来考虑.针对以上问题进行研究,讨论了加宽高速公路坡桩设计的若干问题,可供理论研究和工程设计参考.The bearing capacity of slope-pile, which is set up in widening highway, cannot be computed as normal conditional pile, because the function of slope-pile is of some post-filling, some pile-body is at the roadbed fill soil. Some aspects have to be taken into consideration, such as the anchor role, and the function of pile-cap, especially soil arching effect. Based on above study, some issues of the slop-pile design on the widening of the highway were discussed.

关 键 词：加宽高速路 后处理坡桩 锚固 土拱 复合桩基 变形计算 

分 类 号：U213.1[交通运输工程—道路与铁道工程]