FEM Analysis of Composite Soil-nailing considering Tensile Failure
(0) Composite soil-nailing is a new technology developed from abroad in recent years, to be used in excavation of soil, slope stability. This paper studied the stress and deformation of composite soil nailing wall by nonlinear FEM. According to the structure characteristic, the finite element analysis for composite soil nailing construction process is carried out. Based on geotechnical elastic-plastic constitutive model, the adopted failure criterion was a composite Drucker-Prager criterion with tension cut-off. A kind of rotational Goodman interface element is employed to simulate the behavior of interface between the soil-mixed cement which forms the barrier of seepage flow along the boundary of foundation pit, and soil ground. Through the comparative analysis with on-site monitoring data, the finite element calculation results have good precision.
Composite soil-nailing FEM Constitutive relation Tensile failure Failure criterion
Zhi Gang Yan
Shijiazhuang Institute of Railway Technology, Shijiazhuang 050000, China
国际会议
上海
英文
1488-1491
2011-10-21（万方平台首次上网日期，不代表论文的发表时间）