粗粒料缩尺效应研究现状与趋势  

Status quo and tendency of studies on scale effects of coarse-grained materials

作　　者：翁厚洋[1,2] 朱俊高[1] 余挺[3] 王观琪[3] 

机构地区：[1]河海大学岩土力学与堤坝工程教育部重点实验室,江苏南京210098 [2]宏润建设集团股份有限公司,浙江宁波315700 [3]中国水电顾问集团成都勘测设计研究院,四川成都610072

出　　处：《河海大学学报（自然科学版）》2009年第4期425-429,共5页Journal of Hohai University(Natural Sciences)

基　　金：国家自然科学基金委员会、二滩水电开发有限责任公司雅砻江水电开发联合基金(50639050);国家自然科学基金(50579014)

摘　　要：总结了粗粒料室内试验不同缩尺方法的优缺点、目前粗粒料强度和变形试验常用仪器的优缺点以及这些仪器用于研究粗粒料强度和变形的代表性成果;概括了缩尺效应对粗粒料强度和变形特性影响方面的研究成果;分析了缩尺效应的评价依据;讨论了缩尺效应研究中应考虑和注意的一些问题,如试样密度的控制、缩尺效应的定量化表述等,并指出缩尺效应研究应注意替代级配料和原级配料的密度控制方法.The advantages and disadvantages of different scale methods for laboratory tests on coarse-grained materials were summarized. The existing apparatuses for strength and deformation tests on coarse-grained materials as well as the representative achievements were reviewed. The achievements in researches on the scale effects on the strength and deformation properties of coarse-grained materials were discussed. The basis for the evaluation of the scale effects was analyzed. Problems in the studies on scale effects were presented, including density control and quantitative expression of the scale effects. It is pointed out that much attention should be paid to the density control of the substitute and original gradation soils in studies on the scale effects.

关 键 词：粗粒料 抗剪强度 变形 缩尺效应 试验设备 

分 类 号：TU411[建筑科学—岩土工程]