南水北调渠道衬砌施工工艺和质量控制 : The Xinwei third section of South-to-North Water Diversion is the third construction section in Xinxiang Weihui section of the central line main part of South-to-North Water Diversion Project, with total length of 5.1km, and channel length 3.9km. Due to the long channels distance, and wide cross section, it is difficult to organize the construction and manage quality in t