多年冻土区L型支挡结构的数值分析  

NUMERICAL ANALYSIS ON L-TYPE RETAINING WALL IN PERMAFROST REGIONS

作　　者：王家东[1] 梁波[1] 严松宏[1] 

机构地区：[1]兰州交通大学土木工程学院,兰州730070

出　　处：《岩石力学与工程学报》2003年第z2期2686-2689,共4页Chinese Journal of Rock Mechanics and Engineering

摘　　要：利用数值分析方法模拟施工实况,采用弹塑性本构模型并考虑能够反映土体与墙面相互作用的接触单元,分析墙背填土的变形和受力。从而使L型挡土墙作为在冻土区中使用的一种新支挡结构,其力学性能能得到更加深入细致地研究和检验,以便为工程应用提供参考依据。The deformations and stresses of backfill of retaining wall are analyzed by elastoplastic numerical calculation model. The boundaries between backfill and retaining wall,and backfill and floor are simulated by interface elements that reflect interaction of them. The working mechanism of L-type retaining wall in permafrost region are studied and examined in detail,for providing reference for future engineering application.

关 键 词：土工学 冻土 L型挡墙 土压力 冻胀力 

分 类 号：U2[交通运输工程—道路与铁道工程] TU4[建筑科学—土工工程]