悬臂式挡土墙土压力计算方法对比研究  

Comparison of Methods Calculating Soil Pressure of Cantilever Retaining Wall

作　　者：谢清泉 刘昌清[1] 王卉 郭海强[2] XIE Qingquan;LIU Changqing;WANG Hui;GUO Haiqiang(School of Civil Engineering,Southwest Jiaotong University,Chengdu 610031,China;China railway Eryuan Engineering Group Co.,Ltd.,Chengdu 610031,China)

机构地区：[1]西南交通大学土木工程学院,成都610031 [2]中铁二院工程集团有限责任公司,成都610031

出　　处：《路基工程》2020年第5期110-114,125,共6页Subgrade Engineering

摘　　要：悬臂式挡土墙设计时可采用库仑理论计算公式或弹性理论进行土压力计算,这两种计算方法在计算土压力荷载时存在差异,将会影响设计结果。通过理论分析和设计对比的方法,对比了两种计算方法产生差异的原因及对结构内力和配筋的影响,对比了一般工况和地震工况下的悬臂式挡土墙设计结果,并对在不同工况下运用库仑理论和弹性理论设计的特点和适用性进行分析。研究发现,破裂面是否交到荷载土柱是采用库仑理论设计的关键因素,在地震工况下设计时,弹性理论未能完全考虑地震影响。For design of cantilever retaining wall,Coulomb theory or elastic theory can be used to calculate the soil pressure.There exists difference between the two methods,which further influences the design.By means of theoretical analysis and design comparison,the reason of this difference and the effects on the structural internal force and the reinforcement thereby,as well as the design of cantilever retaining wall under general and seismic working conditions were analyzed herein with the features and applicability of Coulomb theory and elastic theory in the design under different conditions.It is found that whether the fracture plane intersects with the load is the key factor for the design by use of Coulomb theory and,for elastic theory,seismic effect is not considered comprehensively in the design under the working condition of earthquake.

关 键 词：悬臂式挡土墙 土压力 弹性理论 库仑理论 设计对比 

分 类 号：U213.152.2[交通运输工程—道路与铁道工程]