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结合水工闸门工作特点 ,通过对全国 81座大型水库门前年峰水位的统计分析 ,阐明了门前峰水位 (年水头峰值 )基本服从于正态分布 ,对数正态分布和极值Ⅰ型分布 ,且其概率分布特征不同于坝前峰水位的分布特征 ;并在此基础上 ,进一步给出设计基准期内门前峰水位的概率分布函数和特征参数 .可供水工闸门可靠度设计及有关荷载规范制定时参考
Combined with the working characteristics of hydraulic gate, the statistical analysis of the peak water level of the 81 large reservoirs in the whole country in the previous year shows that the basic obedience of the front peak water level (annual head peak) is normal, logarithmic normal distribution and extreme Ⅰ Type distribution, and its probability distribution characteristics are different from the distribution characteristics of the peak water level in front of the dam; and on this basis, the probability distribution function and characteristic parameters of the peak water level before the design reference period are further given. And the relevant load specification formulation reference