CAJ | 학술논문

以渭河下游华县水文站实测水位~流量点据为验证资料，对比分析单一河槽法、滩槽垂直分割法和全断面分割法三种不同形式曼宁公式在复式河段的适用性，结果表明单一河槽法及滩槽垂直分割法未充分考虑滩槽水流动量交换的特点，计算流量值在平滩水位处出现跳跃现象，不符合天然复式河段水位~流量关系的变化规律，而全断面分割法将断面分割为多股水流然后分别累加各子断面流量，计算成果基本反映天然复式河段水位~流量关系的变化规律，建议复式河段水位~流量关系计算采用全断面分割法。
이위하하유화현수문참실측수위~류량점거위험증자료，대비분석단일하조법、탄조수직분할법화전단면분할법삼충불동형식만저공식재복식하단적괄용성，결과표명단일하조법급탄조수직분할법미충분고필탄조수류동량교환적특점，계산류량치재평탄수위처출현도약현상，불부합천연복식하단수위~류량관계적변화규률，이전단면분할법장단면분할위다고수류연후분별루가각자단면류량，계산성과기본반영천연복식하단수위~류량관계적변화규률，건의복식하단수위~류량관계계산채용전단면분할법。
With measured stage-discharge data points of Huaxian hydrological station in downstream of Weihe River, three different kinds of Manning formula of single channel method, vertical division method of channel and floodplain, whole section divi-sion method are analyzed to find out the applicability in conpound channel. It's indicated that the inadequate considerration on mo-mentum exchange of flow between channel and floodplain of single channel method and vertical division method of channel and flood-plain lead to jumping phenomenon in dischasrge calculation results, this phenomenon violates the variation of stage-discharge rela-tion in natual compound channnel. While the whole section division method divises the whole cross section into several sub-sen-tions, and than accumulates discharge of each sub-section, the calculation result complies with variation of stage-discharge rela-tion in natual compound channnel. It's recommanded that whole section division method should be used in compound channel.