Abstract: The insitu Pressuremeter test results from boreholes No. 1 though No. 6 in Songta Hydropower Plant project indicate that the characteristics of the deformation curve in the compression phase is critical to a successful test and the reliability of the test. The linear deformation and the failure phases are closely related to the engineering properties of the soil strata tested. The Pressuremeter test results from borehole No. 7 through No. 9 indicate that the variations of the curves with the depth in the same soil stratum are similar with a different radius. Summarizing the test results can help the proper characterization of the soil properties at different depths. 

Key words: Pressuremeter Test, Borehole Quality, Bearing Capacity