复合土钉支护侧土压力合理分布模式及其工程应用  

New model for the lateral soil pressure distribution of composite soil nailing bracing and its engineering application

作　　者：刘晓红[1] 饶秋华[2] 谢海峰[2] 

机构地区：[1]湖南理工学院土建系,湖南岳阳414000 [2]中南大学土木建筑学院,湖南长沙410083

出　　处：《铁道科学与工程学报》2006年第2期53-57,共5页Journal of Railway Science and Engineering

基　　金：湖南省教育厅科研基金资助项目(2004C262)

摘　　要：在分析复合土钉支护侧土压力分布模式及相关国内外著名实测结果的基础上,考虑基坑底面受开挖影响的深度,提出一种新型的侧土压分布改进模式,即“五边形”模型,并将此模型应用于某水泥搅拌桩复合土钉支护工程中。计算结果表明,所提出的“五边形”侧土压力分布模式与实测结果相符合,与现有的侧土压力分布模式相比更加合理,对复合土钉支护结构的整体设计、稳定性分析、工程造价预算等具有指导意义和应用价值。A pentagon model, a new model for the distribution of lateral soil pressure was proposed based on the analysis of presently available models and consideration of foundation pit depth affected by excavation. The calculated results obtained by available models show that The pentagon model for the distribution of lateral soil pressure is of significance to design, stability analysis and cost budget of composite soil nail bracing structure.

关 键 词：复合土钉支护 侧土压力分布 “五边形”模式 

分 类 号：TU413.62[建筑科学—岩土工程]