摘要
剪切强度是研究海冰破坏准则的重要参数。由于海冰的特殊性，海冰的剪切实验难于实现。采用常规材料的剪切实验方法将导致一些方法误差。本文设计了一种新的实验装置获得了海冰在三个加载方向的剪切强度，同时测试了海冰的内摩擦系数。在本实验基础上利用Ｃｏｕｌｏｍｂ－Ｍｏｈｒ理论研究了海冰的破坏准则。
The shear strength is one of important parameters for investigating the failure criterion of sea ice. It is difficult to perform the shear experiment on the sea ice due to its material fea- tures．Errors should be induced if conventional material．suchas metals．in the shear test is directely adopted． In this paper，a new test method is introduced,by which the shear strength and inter－friction coefficient of the sea ice in three directions can be obtained．Based on the test results，the failure criterion of the sea ice is analysized using the Coulomb－Mohr theory
出处
《冰川冻土》
CSCD
北大核心
1994年第1期75-79,共5页
Journal of Glaciology and Geocryology
基金
国家自然科学基金
关键词
海冰
剪切强度
破坏准则
实验法
：sea ice，experimental method,shear strength，the failure criterion
