Case History of a Large Tonnage Pile Static Load Tests
The static load test is still the most intuitive and reliable method for determining the axial capacity of foundation piles.With the development of the economy,science and technology,the experience of engineering designers is becoming in-creasingly rich,and the axial capacity of the pile foundation design is also gradually increasing.High axial capacity piles pose great challenges to the testing work,and more attention should be paid to the safety,accuracy,and efficiency of the large ton-nage tests.Given that the requirements for the large tonnage static load testing equipment and testing risks are much higher than those for the small tonnage,there are many safety hazards and difficulties in the testing process.Therefore,engineering inspectors must comprehensively consider a prudent treatment plan.The key points of the experiment were introduced in detail from the aspects of the equipment installation selection,axial capacity and deformation verification,and safety issues during the experiment.Solutions were explored,and relevant selection calculation methods were provided.A comprehensive analysis was conducted on each step based on engineering examples.Results show that this test method is stable and reliable and can accu-mulate experience and provide a useful reference for the large tonnage static load tests.
Large TonnageStatic Load TestCounterweight Platform Reaction DeviceAxial CapacityTest Safety
NETL
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