摘要
土体在单轴拉应力作用下，轴向经历变形，结构发生本质性的变化，径向同时出现收缩。这种应变特性改变了矿物颗粒间的微应力场，它是土体在径向上发生颗粒错位、定向排列、微裂隙发育等结构变化的源动力。
Radial contraction occurs, accompanied by the tensile deformation and essential structure change, when frozen soil is applied an uniaxial tensile force. The mini-stress field of the mineral grain is changed under such a strain, resulting in change in structures such as shift and reorientation of grains and growth of crack in the radialdirection.
出处
《冰川冻土》
CSCD
北大核心
1996年第3期262-268,共7页
Journal of Glaciology and Geocryology
关键词
冻土结构
冻土
拉应力
结构变化
微裂隙
structures, tensile stress, mineral grains, reorientation, crack
