Traditional construction methods of pipes with concrete weight coat (CWC) used in subsea pipelines are impingement,intrusion and slipforming,which are all imported at high costs.

• 传统的海底管道混凝土加重层涂敷方法主要有喷射冲击法、挤压缠绕法和滑模法,这3种技术都由国外引进,成本较高。