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1先进的管道和落后的检查井我国的住宅建设和水环境治理在最近的十多年里取得了空前规模的发展。从大城市到小城镇,从东部到西部,为了改善居住环境,为了治理江河污染,到处都在造房子、埋管子。与此同时,我国排水管道的施工技术也取得了很大进步,各种新型管材不断出现,在一些大城市,传统的砂浆接口已经被柔性接口取代,钢筋混凝土基础已经被黄沙基础取代,施工工期明显缩短,管道渗漏量大大降低。在管材制造和施工安装方面,我国和发达国家的差距正在缩小。
1 Advanced Piping and Outdated Inspection Wells China's residential construction and water environment management have achieved unprecedented scale development over the past decade or so. From the big cities to the small towns, from the east to the west, in order to improve the living environment and control the pollution of the rivers, houses and pipes are built everywhere. At the same time, the construction technology of drainage pipes in our country has also made great progress. A lot of new types of pipes are emerging constantly. In some large cities, the traditional mortar interface has been replaced by the flexible interface, and the reinforced concrete foundation has been replaced by the yellow sand foundation. Significantly shorter duration, pipe leakage greatly reduced. In pipe manufacturing and construction and installation, the gap between our country and the developed countries is shrinking.