CAJ | 학술논문

受地质地貌、水沙条件和人为因素影响，天然河道平面形态上常呈现宽窄相间的特征。从河宽变化对河床演变、水流流速分布、紊动特性及阻力特性的影响等方面，详细介绍了国内外关于宽窄相间河道水沙运动特性的研究成果。在对当前已有成果认识的基础上，指出后续研究要以河宽变化引起的平面形态阻力变化为重点，同时要结合天然宽窄相间河道的水沙变化情况对当前已有成果进行检验。
수지질지모、수사조건화인위인소영향，천연하도평면형태상상정현관착상간적특정。종하관변화대하상연변、수류류속분포、문동특성급조력특성적영향등방면，상세개소료국내외관우관착상간하도수사운동특성적연구성과。재대당전이유성과인식적기출상，지출후속연구요이하관변화인기적평면형태조력변화위중점，동시요결합천연관착상간하도적수사변화정황대당전이유성과진행검험。
The wide and narrow alternated reach is a common form of natural rivers because of the impact of geologic land-forms,flow and sediment conditions and human activities. The paper introduces the research achievement in wide narrow alterna-ted channels at home and abroad in view of the riverbed evolution,velocity distribution,turbulence characteristics and flow resist-ance. Based on the understanding of the current research results,it is pointed out that future study should be focused on the mor-phological shape resistance variation caused by changes of river width and also the research achievements should be testified ac-cording to the practical conditions in natural wide narrow alternated channels.