结构工程师2023，Vol.39Issue(6)：179-188,10.
格构式双排桩板墙台地支护体系变形与受力特性分析
Analysis of Deformation and Stress Characteristics of Latticed Double-row Sheet Piles Wall of Tableland Supporting System
摘要
Abstract
Latticed double-row sheet piles wall supporting system is adopted in tableland in loess hills.It is rare in academic study on this kind of supporting structure.Taking such supporting structure of a project in Gongyi,Henan as an example and based on Mohr Coulomb elasto-plastic constitutive model,earth pressure and finite element theory,a three-dimensional finite element model of the latticed double-row sheet piles wall supporting system under the backfill working condition of tableland slope is built.The influence of backfill soil on the stress and deformation characteristics of the tableland supporting system under various working conditions is further compared and analyzed.The stress distribution and deformation characteristics of the supporting structure are mainly analyzed.Comparative analysis is conducted according to other support types and soil pressure theory.The main results of the study show that the horizontal displacement of ground support structure has linear distribution.The horizontal displacement of underground structure has the largest variation near the pile top.The soil pressure has the S-shaped distribution on the panel of latticed double-row sheet piles wall with depth.The maximum settlement of fill area decreases with the increase of the distance between retaining structures.The maximum stress concentration point of the structure is at the top of the outside cast-in-place pile.The study results can provide reference for the prevention and control scheme of high-filled slope in hilly areas and the further study of the overall failure mechanism of the latticed double-row sheet piles wall.关键词
台地支护体系/双排桩板墙/有限元/应力分布/变形特性Key words
tableland supporting system/latticed double-row sheet piles wall/finite element/stress distribution/deformation characteristics引用本文复制引用
李恒达,贺亮亮,张宇飞,刘思维,雷超雯..格构式双排桩板墙台地支护体系变形与受力特性分析[J].结构工程师,2023,39(6):179-188,10.基金项目
中建新疆建工(集团)有限公司研发基金项目(65000022859700220237) （集团）
