排桩间距对岩堆三排抗滑桩力学特性影响研究  

Study on Influence of Row Spacing on Mechanical Characteristics of Triple-row Anti-slide Piles for Talus

作　　者：李永奎 徐海涛[1] 徐宇 LI Yongkui;XU Haitao;XU Yu(Chengdu Survey,Design and Research Institute Co.,Ltd.of CREEC,Chengdu 610081,China)

机构地区：[1]中铁二院成都勘察设计研究院有限责任公司,成都610081

出　　处：《路基工程》2021年第1期98-103,共6页Subgrade Engineering

摘　　要：以某铁路工程采用三排抗滑桩治理大型岩堆为例,基于有限元方法,以7组排桩间距为变量,研究分析多排抗滑桩的受力特性。研究发现在不同排间距下,三排抗滑桩的滑坡推力及在岩堆界面的弯矩变化规律,为治理大型岩堆提出了最优排桩间距建议值。Taking triple-row anti-slide piles to treat large-scale talus in a railway works as an example,the mechanical characteristics of the row piles were studied by finite element analysis with 7 groups of row spacing taken as the variable.Through the study,the change laws of the landslide thrust of triple-row anti-slide piles and the bending moment at the talus interface under different row spacing were found out,and the optimal row spacing was suggested for treatment of large-scale talus.

关 键 词：岩堆 多排抗滑桩 排间距 有限元 滑坡推力 弯矩 

分 类 号：U213.152.1[交通运输工程—道路与铁道工程]