延吉盆地风化砂质泥岩地基承载力研究

为了获取延吉盆地风化砂质泥岩层可靠的地基承载力数据,采用载荷试验和标准贯入试验原位测试方法,对晚白垩世龙井组风化砂质泥岩层的地基承载力进行了测试研究,得出了风化砂质泥岩层地基承载力特征值的范围,地基承载力特征值、变形模量与标准贯入试验锤击数线性相关的结论.据此,提出了风化砂质泥岩层地基承载力特征值和变形模量的经验公式,为延吉地区岩土工程勘察工作提供了依据和方法,并为吉林省其他地区风化泥岩层地基承载力的研究提供了参考.

Study on subgrade bearing capacity of weathered sandy mudstone in Yanji Basin

In order to achieve reliable data about the characteristic value of subgrade bearing capacity of weathered sandy mudstone seam in Yanji basin, in - situ testing methods including loading test and standard penetration test （SPT） are taken for study on the weathered sandy mudstone stratum of Longjing formation of Late Cretaceous. Through the statistical analysis of the test data, get the characteristic value of subgrade bearing capacity of the range of weathered sandy mudstone seam, and the characteristic value of subgrade bearing capacity and blow counts of SP-F linear related conclusion, so the deformation modulus and blow counts of SPT linear related conclusion. Accord- ing to the conclusion, two experimental formulas are proposed. The research is helpful to geotechnical engineering investigation work in Yanji Basin, and provide experience for other regions in Jinlin Province.