长春伊通河砂土地基承载力研究  

Study on Subgrade Bearing Capacity of Sand in YiTong River in Changchun

作　　者：孙广利[1,2] 高涛[2] 于光源[2] 

机构地区：[1]吉林大学建设工程学院,吉林长春130026 [2]吉林建筑工程学院,吉林长春130118

出　　处：《岩土工程技术》2013年第3期158-160,共3页Geotechnical Engineering Technique

摘　　要：为了获取长春伊通河砂土可靠的地基承载力数据,探讨确定地基承载力适宜的测试手段和方法,采用载荷试验、静力触探试验和标准贯入试验原位测试方法对长春伊通河砂土的地基承载力进行了测试研究,获取了13组地基承载力特征值、静力触探试验指标和标准贯入试验锤击数等试验数据。通过对试验数据的统计分析,得到了地基承载力特征值的范围,得出地基承载力特征值与静力触探试验指标和标准贯入试验锤击数线性相关的结论。据此,提出了适合当地工程地质条件的根据静力触探试验指标和准贯入试验锤击数计算长春伊通河砂土地基承载力特征值的经验公式。In order to achieve reliable data about the characteristic value of subgrade bearing capacity of sand of YiTong river basin in Changchun, to approach appropriate measures for determining the characteristic value of subgrade bearing capaci- ty , in--situ testing methods including loading test , cone penetration test（CPT）,and standard penetration test（SPT） are car- ried out for study on the sand and thirteen sets of data whice about characteristic value of subgrade bearing capacity, the value of CPT and blow counts of SPT are collected. Through the statistical analysis of the test data, get the characteristic value of sub- grade bearing capacity of the range of the sand. That the characteristic value of subgrade bearing capacity and value of CPT and blow counts of SPT linear related conclusion. According to the conclusion, two kinds of experimental formulas adapting to the local engineering geological condition are proposed, one of which is for determining the characteristic value of subgrade bearing capacity of sand by blow counts of SPT, the other by value of CPT.

关 键 词：伊通河砂土 地基承载力特征值 载荷试验 静力触探试验 标准贯入试验 经验公式 

分 类 号：TU431[建筑科学—岩土工程]