The pre-bored pressuremeter test has the characteristics of small soil disturbance,strong adaptability,and intuitive results.It is suitable for the exploration of the completely weathered granite.This article is based on the survey of the first sec-tion of the North Extension Channel Project of Qiaocheng East Road and provides a detailed introduction to the principles and testing process of the pre-bored pressuremeter test.The P-V curves of the completely weathered granite at the different explo-ration points in the study area were obtained through the on-site investigation,and the mechanical properties such as the shear modulus,pressuremeter modulus,and characteristic values of the soil bearing capacity were presented.The results show that the mechanical parameters related to the fully weathered granite gradually increase with the increasing of the testing depth.The characteristic values of the soil bearing capacity measured by the pressuremeter test are similar to but slightly larger than the re-sults of the standard penetration test,which indicates the reasonableness of the pressuremeter test.
关键词
旁压试验/全风化花岗岩/旁压剪切模量/旁压模量/地基承载力特征值
Key words
Pressuremeter Test/Completely Weathered Granite/Pressuremeter Shear Modulus/Pressure Modulus/Charac-teristic Value of Soil Bearing Capacity
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