[Commentary] Underground Comprehensive Pipe Corridor in Xiamen Xiang'an New Airport Area-Airport Expressway Crossing Sea Section, which was completed in the afternoon of May 29. The project has a total length of 982 meters, which is the largest pipe diameter and longest pipe jacking operation in China. The project of underground comprehensive pipeline corridor across the sea.
【Explanation】 The cross-harbour project is the key and difficult point of the underground comprehensive pipe corridor project in the Xiamen Xiang'an New Airport Area. Due to the long distance, there are a lot of bad geology such as lone rock groups on the seabed. This kind of construction has no precedent in China before, and the construction technology is difficult. To this end, the construction party has developed high-precision geological exploration technology, innovated the laser precision guidance system, and solved the problem of positioning measurement of long-distance pipe jacking. The actual error of this pipe corridor across the sea is within 5 cm.
[Same period] Zheng Jinhang, Operations Director of China Railway Municipal Xiamen Investment Management Company
This long-distance large-section pipe jacking project is currently a precedent in China. During the construction process, we have overcome various unfavorable geological conditions on the seabed, as well as the precise positioning of long-distance pipe jacking, and one of which is waste mud Technical difficulties such as zero emissions.
[Explanation] Underground comprehensive corridor, that is, to build a tunnel space under the city, integrate various engineering pipelines such as electricity, communication and drainage, implement unified planning and design, unified construction and management, ensure the safe and effective operation of the city, and improve city management Scientific, refined and intelligent level.
[Same period] Zheng Jinhang, Operations Director of China Railway Municipal Xiamen Investment Management Company
The underground comprehensive pipe corridor is a city's lifeline. It solves our traditional road zipper and aerial spider web. This traditional pipeline layout method provides an important guarantee for various underground pipelines in the city.
[Commentary] It is understood that Xiamen is a double pilot city for the construction of underground comprehensive pipeline corridors and sponge cities. There are 8 underground comprehensive pipeline corridor constructions in the Xiang'an New Airport area, including the sea crossing project, with a total mileage of 19.8 kilometers. The construction of the three companies of the Group and the China Railway 22nd Bureau Group mainly included pipelines for power, communications and gas.
Li Siyuan Kong Xiangwen Wang Yingwei Qian Xiaoyun Xiamen, Fujian reported
Editor in charge: [Tao Guangxiong]