摘要
在应变协调的假定基础上,将桩土地基进行均质化,结合横观各向同性材料的本构方程,给出均质化后复合地基弹性模量以及泊松比的求解方法。通过与有限元方法计算结果的对比,验证本方法的正确性。最后将该方法运用于一大型深基坑工程的坑底隆起问题分析,并分析工程桩对坑底回弹和围护结构变形的影响。通过与实测结果比较表明,本方法能很好地反映工程桩对坑底回弹和围护结构变形的影响,同时大大简化建模工作量与计算量。
Based on the assumption of strain compatibility,pile-soil ground is homogenized.Combined with transversely isotropic constitutive equations,the elastic modulus and Poisson′s ratio of composite ground are gained.Compared with the results of finite element methodt,he results of this method are validated.In the endt,he influences of piles on rebound and deformation of a large deep foundation pit are analyzed.According to the comparisons of measured results and calculated ones,the applicability and predominance of the method are validated;and the workload and calculation time will be simplified and saved.
出处
《岩石力学与工程学报》
EI
CAS
CSCD
北大核心
2007年第4期853-859,共7页
Chinese Journal of Rock Mechanics and Engineering
关键词
桩基工程
回弹
应变协调
均质化
横观各向同性
有限元
pile foundations
rebound
strain compatibility
homogeneity
transverse isotropy
finite elements
