en.Wedoany.com Reported - On April 21, with the precise placement of the final batch of concrete, the six control gate piers of the Zaolinzhuang Water Control Hub renovation and expansion project, undertaken by China Railway Third Bureau under China Railway, were fully completed in the southern part of Zaolinzhuang Village, Xiong County, Xiong’an New Area, Hebei Province, China.
The Zaolinzhuang Water Control Hub renovation and expansion project is the only critical water discharge control project in Baiyangdian Lake. The construction scope encompasses the flood discharge gate construction area, the control gate construction area, reinforcement of the Zhaobeikou overflow weir, renovation of the hub management buildings and hydrological facilities, and strengthening and renovation of a 3-kilometer-long connecting section of the embankment. In this renovation, the original four control gate bays were expanded to six, with the width of each single bay increased from 10 meters to 12 meters, effectively enhancing the flood discharge capacity. As a comprehensive water control hub, upon completion, the project will serve not only for flood control but also for water storage, irrigation, and navigation.
The control gate piers are key structures ensuring precise flow regulation and safe gate opening and closing. To address construction challenges such as the height of the piers, strict requirements for formwork joints, and the traditional method's numerous joints and slow installation, the project team applied the "Formwork-Working Platform Integrated Construction Technique." By using BIM modeling to optimize the formwork into a horizontal modular design, this technique reduced the number of joints per layer from 12 to 4, while eliminating the need for erecting and dismantling external scaffolding, successfully resolving the construction bottleneck of large-volume gate piers. According to project sources, the pier construction saved a total of 12 days in the construction schedule, concurrently resulted in two authorized patents and one enterprise-level construction method, and won QC achievement awards from China Railway and the Hebei Province construction industry.
The renovation and expansion of this large water control hub will effectively regulate the water level of Baiyangdian Lake, alleviate downstream flood control pressure, and provide support for ensuring the safety of people's lives and property in the watershed, as well as promoting regional economic and social development.
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