带斜梁的新型扶壁式挡土墙有限元模拟及应力分析  

Finite element simulation and stress analysis of a new buttress retaining wall with inclined beam

作　　者：韩昆 马涛 文建新 钱晨阳 胡贵生 冯国将 HAN Kun;MA Tao;WEN Jianxin;QIAN Chenyang;HU Guisheng;FENG Guojiang(BGRIMM Group Technology,Beijing 100160,China)

机构地区：[1]矿冶科技集团有限公司,北京100160

出　　处：《矿冶》2024年第2期181-188,共8页Mining And Metallurgy

摘　　要：提出一种带斜梁的新型扶壁式挡土墙。首先通过QY-Tools工具箱进行扶壁式挡土墙设计,确定挡土墙设计尺寸,之后利用Midas/Gen进行有限元模拟,比较在库伦土压力作用下新型扶壁挡土墙与传统扶壁挡土墙位移及应力变化趋势。结果表明:扶壁背部增设斜梁的新型扶壁式挡土墙可以优化挡土墙应力分布,减小扶壁间立板的最大位移,实现应力控制配筋,同时也能满足裂缝要求。扶壁、立板及墙趾和墙踵相交位置受力复杂,在设计过程中需采取加强措施,其他部位受力均较小,配筋可优化。A new buttress retaining wall with inclined beam was proposed in this paper.Firstly,QY-Tools was used to design the buttress retaining wall and determine the design size.Then Midas/Gen was used to conduct finite element simulation.The purpose was to compare the displacement and stress variation trends of the new buttress retaining wall and the traditional buttress retaining wall under the action of Coulomb earth pressure.The results show that the new buttress retaining wall with inclined beam added at the buttress end can optimize the stress distribution,reduce the maximum displacement of the standing plate between the buttresses,realize stress control reinforcement,and meet the requirements of cracks.The forces at the intersection of the buttress,vertical plate,and toe and heel of the wall are complicated,so it is necessary to take strengthening measures in the design process.The forces at other parts are small,and the reinforcement can be optimized.

关 键 词：扶壁 挡土墙 斜梁 有限元模拟 应力分布 

分 类 号：TU476.4[建筑科学—结构工程]