以顶代吊修复大型输送机

Repair of large conveying machine with jacking in place of lifting

为降低企业修船成本，针对采用大型浮吊施工方案成本大的缺点、确立以顶代吊方案，并成功实施，取得了良好效果。

To reduce cost of shiprepair, a plan with jacking in place of lifing is made and performed against high cost for using large floating crane.This success wins good effects.