摘要
由于碾压混凝土坝是分层铺设碾压,突出存在着层间结合和坝体的层间稳定问题。因此有必要对有层面碾压混凝土断裂机理进行研究。采用断裂力学理论(双K断裂模型)对轴拉试件进行断裂力学分析,确定双K断裂参数的数值,研究其尺寸效应以及层面对双K断裂参数的影响。
There were two problems on bedding plane and stabilization of dam due to the structural characteristics of the layer-lifted construction of RCC dams. Therefore, it was necessary that the fracture mechanism of RCC dam along layer surface be studied. Properties of fracture of axial tensile specimen were analyzed by the theory on fracture mechanics （double-K fracture model）, and the double-K fracture parameters were also determined. In addition, size effect of fracture parameters and the effect of layer surface upon double-K fracture parameters were also explored.
出处
《辽宁工业大学学报（自然科学版）》
2009年第2期101-103,共3页
Journal of Liaoning University of Technology(Natural Science Edition)
基金
国家自然科学基金项目(0709013)
