摘要
从土石混合料的压实机理出发,深入分析不同含石量的土石混填路基压实度检测试验中对检测结果产生影响的各种因素,并通过数值分析方法对室内击实试验数据进行拟合,求解理论最大干密度和最佳含水量,采用不同含石量的等效最大干密度法对采用灌水法检测得到的土石混填路基现场干密度值进行修正,消除数据的离散性。分析结果表明,通过修正得到的土石混填路基的压实度均满足工程要求。
Starting with compaction mechanism of the soil-rock mixture subgrade,this article makes a deep analysis of the various factors which have influence on the test results by detecting the compactness of soil-rock mixture subgrade for different rock content.It also conducts the fitting in terms of the data drawn from the indoor compaction test by numerical analysis method,so as to solve the maximum dry density and the optimum moisture content theoretically.Adopting equivalent maximum dry density method with different rock content,it corrects the dry density data tested by using water-filling method in the field roadbed.Finally,the analysis results show that the modified compaction degree of the soil-rock mixture subgrade meets the project requirements.
出处
《勘察科学技术》
2007年第6期6-8,33,共4页
Site Investigation Science and Technology
关键词
土石混合料
压实度
含石量
灌水法
超百
soil-rock mixture
compaction degree
rock content
water-filling method
over 100%
