南水北调中线工程渠道衬砌裂缝产生的原因及防控措施

Causes and Control Measures of Channel Lining Cracks in the Middle Route of South-to-North Water Diversion Project

针对南水北调渠道衬砌混凝土施工过程中容易出现的混凝土裂缝问题,从人的行为、混凝工原材料、配合比设计、环境变化、养护、基面处理等方面分析了其产生的原因,并针对每种情况提出了相应的防控措施.

Aiming at the problem of concrete cracks easily occurred during the construction of channel lining concrete in the Middle Route of South-to-North Water Diversion Project, the causes of cracks are analyzed from the aspects of human behavior, concrete mate-rials, mix design, environmental change, conservation and the base surface treatment, and then the corresponding prevention and control measures are put forward for each case. This can provide technical supports for the structure safety of the whole channel in the Middle Route of South-to-North Water Diversion Project.