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中国电建集团所属水电九局承建的世界单跨最大混凝土拱式渡槽——黔中水利枢纽龙场渡槽顺利合龙,这标志着黔中水利枢纽技术难度最大、风险系数最高的控制性工程完成了最重要的节点目标,在我国水利工程建设史上具有里程碑式意义。在6月29日拱圈吊装完成后,经过项目部近一周的紧张准备,于7月7日凌晨开始浇筑拱圈合龙的现浇段。现浇段长1.5米,浇筑混凝土方量约为18立方米,是拱圈合龙的最后一环。在现
The construction of the world’s largest span arch concrete aqueduct, the Longchang aqueduct of Central Guizhou Water Conservancy Project, successfully constructed by China State Construction Engineering Corporation, which is under the jurisdiction of Hydropower Engineering Co., Ltd., signaled that the control project with the highest technical difficulty and the highest risk coefficient was completed in Qianzhong Water Control Project The most important node target has a milestone significance in the history of water conservancy construction in China. On June 29, after the hoisting of the arch ring was completed, intense preparations by the project department nearly a week began pouring the cast-in-situ section of the arch ring in the early hours of July 7. Cast-in-place length of 1.5 meters, pouring square side of the concrete is about 18 cubic meters, is the last part of the arch ring closure. Now