水力发电学报2011，Vol.30Issue(2)：107-111,5.
筑坝料接触面剪切特性细观模拟研究
Research on contact surface properties of dam material by PFC2D
摘要
Abstract
Various types of contact surfaces exist within an earth-rockfill dam; their study is a focus in the geotechnical field. In this work, a Particle Flow Code in 2 dimensions (PFC2D) is used to study the shear properties of these surfaces in combination with experimental results of laminar-ring simple shear test for two types of materials, mixed soil and filter material. Simulations show that PFC2D can well simulate the strength of these two materials and the distribution of horizontal displacement on contact surface. The micro analysis of computed data of contact force, coordinate number and porosity reveals the distribution and transmission of horizontal shear force and the dilatation and shrinkage of materials.关键词
水工材料/剪切特性/颗粒流方法/接触面Key words
hydraulic material/ shear properties/ PFC/ contact surface分类
建筑与水利引用本文复制引用
杨贵,高德清,刘汉龙..筑坝料接触面剪切特性细观模拟研究[J].水力发电学报,2011,30(2):107-111,5.基金项目
国家自然科学基金(50639050) （50639050）
水利部公益性行业专项经费(200801014) （200801014）
