本文介绍了北盘江特大桥锚碇超大体积混凝土温控防裂技术。通过采用掺加粉煤灰和适量高效外加剂的双掺技术来设计混凝土配合比,并采取分层浇筑、预埋循环冷却水管冷却等温控防裂措施,解决了锚碇超大体积混凝土水化热大、容易开裂的问题,保证了工程质量和施工的顺利进行。 This paper introduces the temperature control and anti-cracking technology of Beijiaojiang Super-Large Bridge. By adopting double admixture technology of adding fly ash and proper amount of high-efficiency admixture to design concrete mix ratio, and adopting layered pouring and embedded cooling water pipe cooling to control isothermal crack-proof measures, the invention solves the problem that the anchoring ultra-large volume concrete hydration Hot, easy to crack the problem, to ensure the smooth construction of the project quality and progress.