在上海地区众多软土隧道中,预拌自密实混凝土被广泛用于联络通道的施工。隧道联络通道内空间狭小,混凝土施工时无法振捣,自密实混凝土以其良好的流动性和填充性能够完成这一异形结构的施工。本文简述上海长江隧道等多个工程实例,介绍预拌自密实混凝土在隧道联络通道中的应用情况。 Among the many soft-soil tunnels in Shanghai, ready-mixed self-compacting concrete is widely used in the construction of liaison channels. The space inside the tunnel is narrow and can not be vibrated during concrete construction. Self-compacting concrete can accomplish the construction of this special-shaped structure with its good fluidity and filling ability. This article briefly describes a number of engineering examples such as the Shanghai Yangtze River Tunnel and introduces the application of pre-mixed self-compacting concrete in the tunnel.