CAJ | 학술논문

阶梯-深潭系统是山区河流广泛分布的重要河床结构，探究其形态和尺寸的规律对于认识山区河流稳定性及河床演变具有重要意义.以探究影响阶梯-深潭结构消能率的因素为目的，通过选取野外发育良好的阶梯-深潭典型跌落式和滑落式结构，实测阶梯高度、深潭容积等基本参数，计算消能率的大小，并通过数据分析影响消能率的主要因素.结果表明：流量容积比α、阶梯-深潭高长比γ和出流方式对阶梯-深潭的消能率有较大影响，随着α和γ的增加，消能率逐渐降低；当α大于0.084、γ大于1.100时，滑落式的消能效果普遍优于跌落式.该研究结果为工程中选择适当的阶梯-深潭结构体型、尺寸提供了理论依据.
계제-심담계통시산구하류엄범분포적중요하상결구，탐구기형태화척촌적규률대우인식산구하류은정성급하상연변구유중요의의.이탐구영향계제-심담결구소능솔적인소위목적，통과선취야외발육량호적계제-심담전형질락식화활락식결구，실측계제고도、심담용적등기본삼수，계산소능솔적대소，병통과수거분석영향소능솔적주요인소.결과표명：류량용적비α、계제-심담고장비γ화출류방식대계제-심담적소능솔유교대영향，수착α화γ적증가，소능솔축점강저；당α대우0.084、γ대우1.100시，활락식적소능효과보편우우질락식.해연구결과위공정중선택괄당적계제-심담결구체형、척촌제공료이론의거.
The step-pool system is one of the most important and widespread riverbed forms of mountain rivers. Exploring the shape and size of step-pool systems is of great significance to understanding the stability and fluvial process of mountain river beds. This paper purports to study the influencing factors in the energy dissipation rates of step-pool systems. It uses field experiments to measure the height of step, stream flow and volume to get the energy dissipation rate of a step-pool system. Research results show that stream flow volume ratio, the ratio of high and length for step-pool systems and the means of outflow have a significant effect on the energy dissipation. On one hand, with the increase of α and γ , energy dissipation decreases gradually. On the other hand, when γis larger than 1.100 and α larger than 0.084, the effect of the type of slide is often more significant than the type of falling. This research provides a theoretical foundation for selecting the proper size for step-pool systems in engineering.