From June 1, Guangzhou will officially implement the code for construction and acceptance of urban integrated pipe gallery (db4401 / t3-2018) (hereinafter referred to as the code), which is the first local standard for construction and completion acceptance of Guangzhou integrated pipe gallery project, and its release and implementation provides a unified technical standard for construction, acceptance and maintenance of urban integrated pipe gallery, as well as a rapid and effective way for Guangzhou In order to achieve the construction goal of "Guangzhou Comprehensive Pipe Gallery special plan", it provides the standard guarantee, and provides the standard basis for strengthening the management and control of the construction quality of the comprehensive pipe gallery.

        With the rapid development of urbanization in China, intensive and economical use of urban land resources has become the trend and direction of municipal infrastructure construction. There are many disadvantages in the traditional urban engineering pipeline construction mode, which has become a more and more difficult problem for municipal underground pipeline construction. In this regard, the general office of the State Council has issued a series of documents in recent years on strengthening the construction and management of urban underground pipelines and promoting the construction of urban underground comprehensive pipe gallery, and has taken "building 2000 kilometers of comprehensive pipe gallery nationwide by 2020" as the national strategy and policy.

        At present, a large number of comprehensive pipe gallery has been built and put into use in major cities in China, but there is no quantitative regulation on the construction and acceptance indexes of Comprehensive Pipe Gallery Project in terms of supporting technical regulations. In order to better standardize and guide the construction and acceptance of the comprehensive pipe gallery in our city, according to the actual needs of the current construction and development of the urban comprehensive pipe gallery project, the municipal housing and Urban Rural Development Commission led the preparation of the code.

        Since the issue and implementation of the code, the owner unit, agent unit, designer, construction unit, quality supervision unit, safety supervision unit, testing unit, etc. engaged in the construction of urban comprehensive pipe gallery project in Guangzhou will need to implement the code in the aspects of preliminary project approval, scheme design, drawing design, construction, testing and acceptance of urban comprehensive pipe gallery project.