Correlation Analysis Of SPT Number And The Main Mechanical Parameters Of Foundation Soil In Yiyang Area

To investigate the physical and mechanical properties of typical foundation soils that their correlation with the standard penetration number in Yiyang area of Luoyang city.Experimental data of 823 sets of Lianhuo-Erguang high-speed liaison line project in this area was collated to carry out correlation analysis so as to find the corresponding empirical relationship.In this article,a briefly introduction about the engineering application of the standard penetration test and the indoor geotechnical test and the general situation at home and abroad is firstly given.Then the corresponding test program was determined based on the actual situation of the project,in order to carry out the standard penetration test of the soil in the section of the project in Yiyang area and the corresponding indoor soil test.An explanation about the obtain of 823 sets of test data was given,including the corresponding standard penetration test and indoor geotechnical test of the Lianhuo-Erguang high-speed linking line project.The following part of the article summarized all sets of the test data according to the locations of the different projects,different land forms,and different types of soil.On this basis,the standard penetration number and the compression modulus of the soil were determined.The correlations between the main physical and mechanical parameters such as porosity ratio,internal friction angle,and cohesive force were analyzed,and the corresponding empirical relationships were initially obtained.Consequently,the standard penetration number and physical and mechanical properties of foundation soil in this region was concluded,and a further understanding on the interpretation of standard penetration test data was obtained.The research also provided supporting information for the corresponding design and construction plan customization.