摘要
基于Lade-Duncan破坏准则及一个平面应变条件,推导出了无粘性材料的平面应变破坏公式,通过引入粘结应力σ0,将其推广到c-■材料。将该公式运用于地基承载力的计算,推导出了基于Lade-Duncan破坏准则的地基承载力计算公式,将计算结果和试验数据比较,结果表明所推导的地基承载力公式是合理的。所得平面应变破坏公式对其他的平面应变问题具有同样的参考价值。
Based on the Lade-Duncan failure criterion and a stress condition in plane strain state, the failure criterion for plane strains for cohesionless materials is proposed. By introducing a parameter of bonding stress σ0, the failure criterion is extended to that of cohesive-frictional materials. The formula is applied to the calculation of bearing capacity of foundation. The validity of the proposed formula for bearing capacity of foundations is verified by comparing the computed results with the test data. The failure criterion in plane strain takes on the same value of reference to others plane strain problems.
出处
《岩石力学与工程学报》
EI
CAS
CSCD
北大核心
2005年第18期3262-3265,共4页
Chinese Journal of Rock Mechanics and Engineering
