After the completion of Qingdao Jiaozhou Bay Submarine Natural Gas Pipeline laying, post-trenching has been carrying out smoothly. Jiaozhou Bay geology is relatively complex, including soft mud, coarse sand, hard yellow mud and other geological structures. Taking into account unfavorable factors, such as multiple shoals on site, difficult large diameter pipeline settlement, project team adopted simultaneous operation method of multiple equipment to speed up post-trenching progress.
Shallow Water Section Trenching
Tidal Flat Section Post-Trenching
Sand Suction Trenching in Shallow Water Section
