粗粒土击实试验中试样制备问题探讨

Discussion on Sample Preparation in Coarse Soil Compaction Test

室内击实试验可以测定干密度和含水率的变化关系,确定最大干密度和最优含水率,为工程设计和现场施工提供技术参数。制备出目标试样是进行击实试验的前提,本文通过试样制备对击实试验结果的影响分析,制样过程中的影响因素分析,在总结前人研究成果的基础上,结合自身试验经验,提出了提高制样效率的几点建议,并总结了改进后的制样流程,对提高粗粒土击实试验成功率有一定意义。

The indoor compaction test can measure the variation relationship between dry density and water content,determine the maximum dry density and optimal water content,and provide technical parameters for engineering design and on-site construction.Preparation of target samples is the prerequisite for conducting compaction tests.This article analyzes the impact of sample preparation on the compaction test results and the influencing factors in the sample preparation process.On the basis of summarizing previous research results and combining our own test experience,it proposes several suggestions to improve the sample preparation efficiency,and summarizes the improved sample preparation process,which has certain significance for improving the success rate of coarse grained soil compaction tests.