关键词:  , 管推进工程 曲线推进 物理模型试验 接触性质 管材与土体互制行为

Abstract:

 Focusing on pipejacking, one of NoDig methods, this study applys finite element method to simulate analysis pipesoil interaction with consideration of different interface properties. For comparison, two problems were analyzed, one is the physical model test and the other is a real curved pipejacking case. For the former one, data obtained from testing cases of overcutting and squeezing were used for numerical simulation calibration and comparison. For the later pipejacking case, the cases with and without ground improvement is numerically analyzed and compared with the in situ monitoring data. Different cases were analyzed to have a better understanding of the pipesoil interaction of pipejacking, and provides comments for a better design.