Construction method of rotary pile, method of manufacturing pile group, and pile group

摘要

The rotary pile can be prevented from being filled in the rotary piles when the rotary piles are press fitted into the ground.The rotary pile 17 provided with the blade 16 is inserted into the ground 91, and is based on the measurement process for measuring the upper load weight of the rotary pile 17 during the press fit of the rotary pile 17 with respect to the ground 91, and based on the measurement results obtained in the measurement process The present invention is characterized in that it is provided with a judging step for judging whether or not the sediment is stuck in the rotary pile 17.For example, the measurement step includes measuring at least one of the rotational torque and the penetration amount of the rotary pile 17.