水利水电工程施工期较长,工程承包合同期发生索赔是正常的。索赔产生的因素主要有:自然、地质条件变化,设计条件变更,业主方面的责任,监理方面的责任,国家法规政策调整等,在索赔工作中必须出示有说服力的证据,把握索赔程序,申述索赔原因,一般情况下都能得到工程师、业主的支持。 Water conservancy and hydropower project construction period is longer, the project contract period claims are normal. Claims include: changes in nature and geology, changes in design conditions, owners’ responsibilities, supervision responsibilities, and adjustments in state laws, regulations and policies. Evidence of persuasion must be made in the claim process to capture claims procedures, representations Claims reasons, under normal circumstances can get the support of engineers, owners.