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采用路基回弹模量常用确定方法,利用试验段现场试验和室内试验的结果,对乌鲁木齐地区低液限粉性土的回弹模量取值进行了分析.研究结果表明,该地区的低液限粉性土,稠度与压实度对回弹模量均有显著影响,且稠度影响更为显著.建立了回弹模量与稠度及压实度预估关系式.根据试验结果对预估关系式的适用性进行了分析,结果表明该关系式拟和精度较高,可以用于该地区低液限粉性土回弹模量的预估.
Based on the commonly used determination methods of the subgrade elastic modulus, the values of the elastic modulus of the low liquid limit silt soil in Urumqi were analyzed based on the field tests and laboratory tests in the test section.The results show that the low liquid Soil permeability, consistency and degree of compaction have a significant effect on the elastic modulus, and the effect of consistency is more significant.The relationship between the modulus of elasticity and consistency of consistency and compaction degree is established.According to the experimental results, The applicability of the relationship is analyzed. The results show that the relationship has high accuracy and can be used to predict the elastic modulus of low liquid limit silt in this area.