堤坝洪水推求及泄流能力复核分析

The analysis for the flood discharge capacity estimated of dykes and dams estimated and review

重庆某堤坝运行多年,由于水文资料等条件发生了一定变化,且现有的设计标准较原来有所提高,因此,有必要对堤坝在现有洪水及设计标准下的泄流能力进行复核。根据坝址附近的雨量资料,运用推理公式法及综合瞬时单位线法推求了坝址处各频率下的洪水过程,并对堤坝的泄流能力进行了复核分析,结果表明,堤坝的泄流能力满足设计要求。

One of dams in Chongqing has already been running many years,due to hydrological conditions has taken place certainly,the existing design standards have improved over the original,it is necessary to check the flood discharge capacity under the existing flood and design standards.According to rainfall data in the vicinity of the dam site,using retional formula method and the integrated instantaneous unit method,it estimates the flood process under different frequency of flood in the site,and carries out the review analysis for the dam＇s discharge capacity.The results showes that it meet the design requirements.