Nowadays large tonnage pile foundation has been used in a large number of high-rise buildings and bridges, so it is necessary to design more secure and reliable loading system for ascertaining the pile bearing capacity in the pile static loading test. This paper adopts the stack method for large tonnage (75000kN) pile static loading test to further study the loading system with combining the theoretical and numerical methods, which can provide scientific basis for testing of large-tonnage pile foundation to some extent.
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