标题：Effect of grain crushing on 1D compression and 1D creep behavior of sand at high stresses
作者：Wang, Z.; Wong, R. C. K.
作者机构：[Wong, R. C. K.] Univ Calgary, Dept Civil Engn, Schulich Sch Engn, Calgary, AB T2N 1N4, Canada.; [Wang, Z.] Shandong Univ, Geotech & Struct Engn Res 更多
通讯作者：Wong, R C K
通讯作者地址：[Wong, RCK]Univ Calgary, Dept Civil Engn, Schulich Sch Engn, 2500 Univ Dr NW, Calgary, AB T2N 1N4, Canada.
来源：GEOMECHANICS AND ENGINEERING
关键词：sand; grain crushing; grain size evolution; creep; compression; fracture; mechanics
摘要：The effect of grain crushing on the deformation of sand in ID compression and ID creep at high stresses was investigated theoretically and experimentally. An approach was proposed to formulate the process of grain crushing in sand in accordance with the laws of fracture mechanics and energy conservation. With this approach, the relation between the void ratio and the amount of grains crushed in ID compression was derived. Laboratory test data were used to verify this derived relation. In addition, it was observed that there are similarities in evolution of grain size distribution in ID compression and ID creep tests. This implies that the changes in microstructure in sand under ID compression and ID creep are comparable.