室内试验路基土压实度控制方法研究

摘要

路基土的压实度是衡量路基强度和评判其承载能力的重要技术指标,也是制做路基室内试验模型的控制难点.通过试验方案设计及实验数据分析,研究了路基土压实度随锤击次数及锤击高度的变化规律,在此基础上确定较为合理的路基土压实度室内试验控制方法,并对方法的实用性和有效性进行了试验验证.%Subgrade soil compactness is an important technical index to measure subgrade strength and evaluate its bearing capacity,and it also is a controlling difficulty during making subgrade model for laboratory experiment.Through scheme design and data analysis of the experiment,this paper studies the change law of subgrade soil compactness according to hammering times and dropping height.Based on that,it determines reasonable control method of subgrade soil compactness in laboratory experiment and verifies the practicability and effectiveness of the method experimentally.