岩土工程学报2011，Vol.33Issue(3)：470-476,7.
框架预应力锚杆柔性支护结构坡面水平位移影响因素
Influencing factors of horizontal displacement of wall facing of grillage flexible supporting structure with prestressed anchors
摘要
Abstract
Grillage flexible supporting structure with prestressed anchors has been widely used in foundation excavation engineering because of its many advantages.The present design mainly focuses on the strength design, and there is little study about the horizontal displacement of supporting structure.But with the increase of excavation depth and scale, the displacement and stability problem is becoming a focus in engineering world.Considering the influence of excavation process, based on an engineering example, the influencing factors of the horizontal displacement of wall facing of grillage flexible supporting structure with prestressed anchors are analyzed.These factors include excavation depth, slope angle, construction load above ground, physico-mechanical properties of soil, supper-excavation depth, design parameters of anchors as well as the bending stiffness of grillage vertical columns.Through analysis, some qualitative conclusions are drawn for the influences of partial factors, and some quantitative results are given for the influences of the rest factors.In general, the above conclusions provide some reasons for further understanding the work mechanism of grillage flexible supporting structure with prestressed anchors and are useful references for engineers.关键词
深基坑工程/框架预应力锚杆柔性支护结构/坡面水平位移/影响因素/开挖过程分类
建筑与水利引用本文复制引用
周勇,朱彦鹏..框架预应力锚杆柔性支护结构坡面水平位移影响因素[J].岩土工程学报,2011,33(3):470-476,7.基金项目
国家自然科学基金项目(50978129),兰州理工大学博士科研基金项目(BS04200902) （50978129）
