After drilling, the jackup drilling rig with biggish pile shoes will produce a certain influence on foundation of bucket foundation platform during pileextracting.
在完成钻井作业后，桩靴较大的自升式钻井船在拔桩中会对筒型基础平台的地基产生一定的影响。
2
When extracting piles, in the condition of vibration to pull out the pile by using excavator lift force.