摘要
为解决采用马斯京根法计算入库洪水产生的不合理现象,根据入库洪水的基本概念探讨了入库洪水与坝址洪水的关系,基于马斯京根法分析了反推入库洪水过程产生的不合理现象,提出采用区间半分法进行迭代计算,并对初始流量的假定进行了分析,较为客观地还原了入库洪水过程、加快了迭代收敛速度、提高了计算精度。通过编制计算机程序,结合柘林水库实测坝址资料,对该方法进行了验证,实例表明该方法可应用于入库洪水计算。
In order to accurately analyze the change rule of dam horizontal displacement and influencing factors, based on the conventional statistic model, a new high water level factor is added to the traditional statistic model for analysis of the horizontal displacement of Tongjiezi gravity dam. The results show that the new statistic model added new high water level factor can better simulate the influence of sharp increase water level in initial period on the dam horizontal displace- ment, and the reasonable aging development process is decomposed. Thus, it improves the reliability of the conclusion of the dam safety evaluation.
出处
《水电能源科学》
北大核心
2012年第12期52-54,215,共4页
Water Resources and Power
基金
国家自然科学基金资助项目(50379008
50979023)
关键词
入库洪水
坝址洪水
马斯京根法
区间半分法
柘林水库
gravity dam
horizontal displacement
statistical model
new high water level factor
