Chenghai 1-1 Platform Submarine Cable Laying Project (Year 2021—CNPC)

Project Description：

KP3.8~KP0.88 post-trenching (2.92km in shallow water area), KP7~KP3.8 post-trenching (6.4km in deep water area) crossing over point treatment and concrete block installation (36pcs), backfilling with excavated material (53,280m³) and cement sandbag (454m³) backfilling in nearshore section.