岗南水库新增溢洪道裂缝成因分析

Causes Analysis to Cracks in New Spillway of Gangnan Reservoir

由于地质和气温等因素的影响，岗南水库新增溢洪道溢流堰面产生大量裂缝，在一定程度上影响了水库的正常运行。首先分析了可能产生裂缝的因素，然后进行了三维有限元计算，对裂缝的成因进行了分析。结果表明，温度骤降是产生裂缝的主要原因。

Cracks appear in the new spillway of Gangnan reservoir, which affect the running of the reservoir to some extent. The factors affectting the cracking was analyzed, then the three-dimensional finite element method analysis was conducted to find the reason of cracking. The results shows that the temperature drop is the main reason to cracks.