The trunk line of the underground integrated pipe gallery in the Pingtan Comprehensive Experimental Zone is integrated into the pipelines of electricity, communication, water supply, reclaimed water, gas, local rainwater, sewage, slow-travel bridges and pedestrian overpasses, and 13 types of integrated pipe gallery are designed, with a total length of 30.055 kilometers. The total investment is 3.818 billion yuan, and the Himoer embedded groove system is used in this project.