Jacket construction technology
At present, there are two mainstream methods for jacket construction. One is to install the jacket first after sinking the pile; and the other is to install the jacket first and then the pile. For the construction method of piling and installation of jackets, we cooperated with Zhenhua to develop a multi-pile pile holder. We used the relatively idle time of the ship to complete the construction of multiple jackets. Regarding the foundation construction method of the sea-lift station where the jacket is placed first and then the pile is driven, we have accumulated rich construction experience in jacket leveling and grouting construction technology. The control of key parameters such as the horizontality of the jacket and the verticality of the foundation piles has reached the domestic leading level.