jacking of pile

例句：

1. 1.The engineer had to perform a jacking of the pile to support the heavy load.
   工程师不得不执行桩的夹持以支撑重载。
2. 2.During construction, it is important to ensure that the piles are properly jacked in place.
   在施工期间，确保桩正确夹紧到位是很重要的。
3. 3.The contractor was fined for not performing proper jacking procedures during the project.
   承包商因在项目中未执行适当的夹紧程序而被罚款。