Completion of the main land area of Gezhouba temporary wharf, a new waterway for the Three Gorges

Recently, the main structure of the land area of Gezhouba Temporary Wharf, the new waterway of the Three Gorges Project, has been completed, which basically has the ability to provide material transportation support for the subsequent demolition of the ship lock, the expansion of the waterway and the overall construction of the new lock.

Gezhouba Temporary Wharf is located about 200 meters downstream of the Upper Dike Road and Yangtze River Bridge in Xiling District, Yichang City. Three berths are arranged in the front of the wharf, which are mainly responsible for the transportation of waste slag during the construction of the project, the loading and unloading of bulk materials such as steel, sand and gravel, large construction equipment, and the berthing of ships. It is the "lifeline" project to ensure the efficient and orderly construction of the project. The project is undertaken by CCCC Second Harbor Engineering Co., Ltd. (Hereinafter referred to as "CCCC Second Harbor Engineering").

"The water depth of the wharf basin is 8 meters, if the direct underwater excavation method is adopted, there are problems of low efficiency and high cost.". We choose to retain the peripheral rock ridge as a'cofferdam 'to realize the transformation of the water site into a land plant. Shan Xiaodong, deputy project manager of CCCC Second Harbor Engineering, told reporters. The construction team adopts the scheme of reserving water-resisting rock ridge-firstly reserve the peripheral rock ridge to form a closed dry foundation pit and realize the dry construction of all structures; after the main structure reaches the standard, break the rock ridge and dredge the harbor basin in sections. This scheme reduces the safety risk of wading construction, and takes into account the construction quality, cost control and schedule requirements. Ma Zhonggang, head of the bidding section

of Gezhouba, Zhaojiagou Temporary Wharf and Ancestral Bay Slag Yard (Phase I), said that the completion of the main body of Gezhouba Temporary Wharf marked the basic formation of a logistics transshipment system consisting of two temporary wharfs and Ancestral Bay Slag Yard, and the opening of two major channels for the entry of building materials and the export of abandoned soil. Provide necessary material transfer conditions for the subsequent construction of Gezhouba shipping expansion.