ON THE APPLICATION OF HIGH STRAIN TESTING IN PILE DRIVING OF OFFSHORE PLATFORM

To solve the problem of refusal and pile stresses in the driving of the piles with large diameters and lengths in the building of offshore platform, it is important to know the drivability and the bearing capacity of the pile when driving the super-long and large-diameter pile in ocean oil engineering. It is hard to perform static load test in such an environment and few means can be taken to check the capacity of the pile after driving. And there is no means to evaluate the performance of the driving system during pile driving domestically up to now. The high strain testing method is carried out in an offshore platform project to check the process of the pile drivability and test the static capacity by re-strike. The applicability and dependability of the high strain testing in the offshore platform project are analyzed with the testing results. It has been proved that high strain testing method can give perfect evaluation on pile drivability and static bearing capacity in the offshore platform project.