混凝土排水管套环式柔性接口的改进室外混凝土排水管道施工最关键的是接口连接，既要求达到一定的密封性，又要施工快速。由本公司施工的利丰（番禺）批发集散中心，其市政工程的排水管道甲方要求采用套环式柔性接口，用沥青胶泥密封。并要求分段进行烟雾试验。为此，我们... Improvement of the concrete drainage pipe collar type flexible interface The most critical part of the outdoor concrete drainage pipe construction is the interface connection, which not only requires a certain degree of sealing, but also requires rapid construction. The Lifeng (Panyu) wholesale distribution center constructed by the company requires the use of a collar-type flexible interface and sealed with asphalt mastic in Party A’s drainage pipeline. And asked to conduct smoke tests in sections. To do this, we...