1. The final pressure standard shall be determined based on the test results of on-site trial piles; 2. The number of consecutive re-pressings at final pressure shall be determined based on factors such as pile length and geological conditions. For piles with a penetration depth greater than or equal to 8m, the number of re-pressings may be 2 to 3; for piles with a penetration depth less than 8m, the number of re-pressings may be 3 to 5; 3. The pressure-holding pile driving force shall not be less than the final pressure, and the pressure-holding duration should be 5 to 10s.
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