国家南水北调工程的开工使薄壁混凝土得到广泛应用,最具代表性的是渠道衬砌。薄壁混凝土能有效地做到防渗效果,降低渠道粗率且方便维修。在施工过程中会因种种因素导致混凝土裂缝,如果裂缝过多必然会降低混凝土的使用寿命,渠道整体性也会被破坏,防渗效果降低,对工程以后的安全性带来很大隐患。文章以南水北调安阳九标为例浅析薄壁混凝土裂缝的成因及防范措施。 The commencement of the national South-North Water Diversion Project has led to the widespread application of thin-walled concrete. The most typical one is channel lining. Thin-walled concrete can effectively prevent seepage effect, reduce the channel roughness and easy maintenance. During the construction process, concrete cracks will result from various factors. If the cracks are too much, the service life of the concrete will inevitably decrease, the integrity of the channels will also be destroyed, and the anti-seepage effect will be reduced, posing a serious risk to the safety of the project later. The paper analyzes the causes of crack of thin - walled concrete and preventive measures by taking Nine as an Example in Anyang of South - to - North Water Diversion Project.