本文主要以南水北调中“刁河渡槽工程”为例,针对薄壁渡槽在特定环境下温控防裂关键技术进行深入的试验和分析研究,最终对温控防裂方案进行合理的创新,采取埋设冷却水管、模板外贴保温板等温控防裂措施使得大体积薄壁混凝土的裂缝问题得到了有效控制,较大的降低了裂缝危害。 In this paper, the “Diaohe Aqueduct Project” in the South-to-North Water Diversion Project is taken as an example. Based on the in-depth test and analysis of the key technologies of thin-wall aqueduct under temperature and crack control in the specific environment, the temperature control and crack- Take the embedded cooling pipe, the template outside the insulation board and other temperature control cracking measures makes the large-volume thin-walled concrete cracks have been effectively controlled, a greater reduction in the risk of cracks.