冻土Ⅰ-Ⅱ型复合断裂准则的试验研究

Experimental study of criteria of compound fracture for frozen soil

摘要: 采用四点弯曲试件，参照有关的测试方法，测定了几种不同含水量及不同温度下的冻土Ⅰ—Ⅱ型复合断裂的ＫⅠ和ＫⅡ，并绘制了相应的ＫⅠ／ＫⅠＣＫⅡ／ＫⅠＣ曲线，给出了曲线的表达式，对冻土的Ⅰ—Ⅱ型复合断裂准则进行了讨论，并给出了建议。

Abstract: Four point bending samples are used to determine the criteria of compound fracture for frozen soil. Details of preparation of samples and criteria of fracture are given. Furthermore, test results and conclusion are discussed and some advice is given.