论文部分内容阅读
通过室内承载板法和重复加载三轴试验研究1种典型黄土路基土在最佳含水量、3种压实度下的回弹特性,分析了静动态回弹模量的相关关系。重复加载三轴试验方法参照美国AASHTO路基土与未处治粒料回弹模量试验规程(T307-99),制定了三轴重复加载测试方法。研究结果表明,黄土路基静动态回弹模量均随着压实度的增加而增加,而且静动态回弹模量相差比较大,动态回弹模量大约为静态回弹模量的3.8～4.5倍。
Through the three-axis test of indoor bearing plate and repeated loading, the springback characteristics of a typical loess subgrade under optimal water content and three compaction degrees were studied. The correlation between static and dynamic elastic modulus was analyzed. Three-axis repeated loading test method Reference to the United States AASHTO subgrade soil and unprocessed pellet resilience modulus test procedures (T307-99), developed a three-axis repeated loading test method. The results show that the static dynamic modulus of the loess subgrade increases with the increase of compaction degree, and the difference of the static and dynamic resilience modulus is relatively large. The dynamic resilience modulus is about 3.8 ~ 4.5 Times