铁道标准设计Issue(1)：34-38,5.DOI:10.13238/j.issn.1004-2954.2016.01.007
既有重载铁路路基压实指标与承载力的关联度分析研究
Research on Relevancy between Compactness Index and Bearing Capacity of Existing Heavy Haul Railway Subgrade
摘要
Abstract
Four basic parameters of K30, EVD, EV2 and EV2/EV1 are regarded as the judging compactness index of heavy haul railway subgrade and obtained by field testing. The bearing capacity of existing heavy haul railway subgrade is measured indirectly through light dynamic penetration test. The relevancy between bearing capacity of heavy haul railway subgrade and compactness index is analyzed. The results show that relevancy between the four basic parameters and the bearing capacity is acceptable and the relationships of K30, EVD, EV2 and EV2/EV1 to the bearing capacity fk are polynomial functions respectively. The field test results show that the fitting relationship is applicable in estimating compaction index of subgrade with C group silty clay filler within the bearing capacity from 98 kPa to 142 kPa.关键词
重载铁路/路基/承载力/关联度/压实度/拟合Key words
Heavy haul railway/Subgrade/Bearing capacity/Relevancy/Compactness/Fitting分类
交通工程引用本文复制引用
肖尊群,周春梅..既有重载铁路路基压实指标与承载力的关联度分析研究[J].铁道标准设计,2016,(1):34-38,5.基金项目
国家自然科学基金(51308424) （51308424）
