土钉支护加固机理的数值分析  

Numerical Analysis of Soil-nail Support

作　　者：罗佩云[1] 

机构地区：[1]烟台职业学院,山东烟台264003

出　　处：《土工基础》2007年第2期41-43,共3页Soil Engineering and Foundation

摘　　要：通过对土钉与周围土体的相互作用进行有限元数值分析,以定量模拟出土钉在土中发挥转动刚度来加固周围土的作用,分析得出不同位置处土体的加固程度,表明土钉对土体的侧向约束作用显著,证明了用土钉支护来减少土体横向位移,防止开挖面的位移和边坡向开挖面坍塌是合理的。The numerical analysis of finite element method is used to simulate the interaction both the soil and the nail in the soil-nailed support. By this analysis, the soil strength in different positions is acquired, in which it seems that the function of the soil-nailed support is to reduce the lateral restraint mainly. Hence it is reasonable that the soil-nailed support is used to reduce the lateral displacement in soil and prevents the cut-sectlon＇s displacement and the slope from collapsing toward cut-sectlon.

关 键 词：土钉支护 有限元法 土体加固 数值模拟 

分 类 号：TU472[建筑科学—结构工程]