有限斜坡土体桩板挡土墙技术研究及应用  

Research and application of pile-panel retaining wall technology for finite slope soil

作　　者：褚松 张世淦 蔡高峰 张印 曾诗烨 CHU Song;ZHANG Shigan;CAI Gaofeng;ZHANG Yin;ZENG Shiye(Fifth Engineering Co.,Ltd.,China Railway Major Bridge Engineering Group,Jiujiang 332001,China)

机构地区：[1]中铁大桥局集团第五工程有限公司,江西九江332001

出　　处：《中国高新科技》2025年第4期150-152,共3页

摘　　要：挡土结构上的土压力计算,通常采用的是朗肯土压力理论,即基于半无限空间土体假定来计算土压力。但在边坡防护工程实践中,不规则边坡普遍存在,使得支护结构底部土体成为有限土体,朗肯土压力理论不再适用。西南某项目铁路梁场搬梁通道区域边坡防护工程存在不规则边坡,基于极限平衡理论和平面滑裂面假定,计算了该工程在有限斜坡土体条件下的被动土压力,设计了针对此项目的桩板式挡土墙,规避了边坡在施工作业过程中塌方的风险,以期为今后类似地形条件下的边坡防护工程设计提供科学参考。The calculation of earth pressure on retaining structures typically follows Rankine’s earth pressure theory,which assumes a semi-infinite soil mass.However,in slope protection engineering,irregular slopes are common,leading to the formation of finite soil masses at the base of supporting structures,rendering Rankine’s theory inapplicable.In a slope protection project for the girder transportation passage of a railway girder precast yard in Southwest China,irregular slopes were present.Based on the limit equilibrium theory and the assumption of a planar sliding surface,the passive earth pressure under finite slope soil conditions was calculated for this project.Accordingly,a pile-panel retaining wall was designed to prevent landslides during construction.This design offers a scientific reference for future slope protection engineering under similar terrain conditions.

关 键 词：有限土体 斜坡 极限平衡 滑裂面 被动土压力 桩板式挡土墙 

分 类 号：U417[交通运输工程—道路与铁道工程]