Dynamic Compaction Reinforcement Foundation Bearing Capacity And Deformation Modulus In Situ Test Research

The in situ test is the kind of necessary engineering technology to solve geotechnical engineering characteristics, the plate load test method is the most direct response in geotechnical engineering, also is the most reliable method of geotechnical engineering engineering properties. But plate load test only reaction plate width or the diameter of the2times the left and right sides depth range of soil engineering properties, completely using large plate load test to determine the soil engineering properties for the testing costs too much and take too long. The in situ test method such as standard penetration, dynamic penetration test and Rayleigh wave method can react geotechnical engineering characteristic relatively fast and economical, and can be very good make up for the defects of pressure plate load test. Therefore, according to the test data to establish pressure plate load test method and the dynamic penetration, Rayleigh wave method, fast and economic relationship between test method, and establish the tables of bearing capacity and deformation modulus, can through the dynamic penetration and Rayleigh wave testing to reflect the characteristics of geoteehnical engineering, the engineering practice is of profound significance. This paper will research on the engineering examples.Firstly, this paper focus on the PRT, dynamic penetration test and rayleigh wave test theory and data statistical methods. Second, the data are different tamping statistical value of the foundation bearing capacity after the dynamic compaction and deformation modulus, by the test of Fushun. Finally, plate loading test with ultra-heavy dynamic penetration test, plate loading test and rayleigh wave method to test the method of combining the value of the foundation bearing capacity and deformation modulus assessment ram, and the establishment of the gravel class dynamic compaction foundation bearing capacity eigenvalues and super-heavy dynamic penetration blow count, the relationship of the foundation bearing capacity value of the rayleigh wave speed.In order to the results with natural foundation of soil empirical relationship,and get the reduction coefficient the results show that the Dynamic Consolidation Foundation established empirical relationship can be used to guide future detection practice Dynamic Consolidation Foundation.