comparison of calculation methods for navigable stage design of tidal reach of the lower yangtze river;
对美国桥梁最高通航设计水位进行分析,并对我国最高通航设计水位的计算方法进行评议。
because of complex influence of runoff and tide in tidal reaches, how to make decision method and standard of designed navigable stage have not been known up to now.
感潮河段因受上游径流和下游潮汐的双重影响,航道设计通航水位确定方法和标準需考虑两方面的因素,目前尚无定论。
by the use of the actual measuring data, the designed lowest navigable stage of power plant downstream in mountainous river was analyzed and computed.
利用实测资料,对山区河流电站下游河段的设计低水位进行了分析计算。
the designed lowest navigable stage at guanyingqi downstream shuikou dike of minjiang is calculated by the bp network mode.
用此模型,对闽江水口坝下观音岐设计最低通航水位进行网络计算。
it is indicated that the distance from the tidal reach to the estuary should be highly concerned in determination of data age and selection of methods for navigable stage design.
研究结果表明,感潮河段设计通航水位方法的选取以及所需样本年限的长短与其距河口的距离有密切关系。