摘要
以陕西延安某高填方场地土体为研究对象,对填方场地的黄土、古土壤及黄土与古土壤(体积比1∶1)的混合土分别进行了轻型击实试验和重型击实试验。利用SPSS曲线估计和统计功能对击实数据进行拟合分析,结果表明:二次函数模型和三次函数模型的拟合结果都是可行的,但是三次函数模型比二次函数模型的拟合结果更好。最后统计分析了轻型与重型击实试验结果的关系,发现重型击实试验与轻型击实试验的最大干密度之间呈线性关系,最优含水率之间也有类似的线性关系,并且求得了这两种击实试验结果之间的转换关系式。
Taking the soil of a high fill site in Yan’an as the research object,the light compaction test and heavy compaction test were carried out on the loess,paleosol and the mixture of loess and paleosol(mixed proportions 1∶1)in the filling site.The use of SPSS simple curve estimation and statistical analysis functions were analyzed on compaction data.The analysis shows that the quadratic fitting function model and cubic function model is feasible,but the fitting result of the cubic function model is better than that of the quadratic function model.Finally,the relationship between the light compaction test and the heavy compaction test results is analyzed,and the linear relationship between the maximum dry density of the two compaction tests,and the optimum moisture content has a similar linear relationship.The conversion formula between the two compaction test results is also obtained.
作者
封凯强
王家鼎
谷琪
许元珺
王晨兴
FENG Kai-qiang;WANG Jia-ding;GU Qi;XU Yuan-jun;WANG Chen-xing(State Key Laboratory of Continental Dynamics,Department of Geology,Northwest University,Xi’an 710069,China;Northwest Research Institute of engineering investgations and design,Xi’an 710003,China)
出处
《陕西理工大学学报（自然科学版）》
2019年第1期54-59,共6页
Journal of Shaanxi University of Technology:Natural Science Edition
基金
国家自然科学基金资助项目(41630639)
