CAJ | 학술논문

基于前期消力池内布置双层悬栅模型试验表明，改变双层悬栅层距对消能效果影响显著，为进一步研究层距改变后悬栅消能规律，给寻找双层悬栅最优布置形式提供依据，通过保持栅条数和栅距等影响因素不变，改变悬栅层距，在q0＝21．43 L／s和 q0＝18．57 L／s两种单宽流量下进行试验，通过观察消力池内流态，计算下降水深及消能率，着重分析了层距改变对下降水深的影响，试验结果表明：①层距改变对消能率影响不大，对下降水深影响较大；②层距改变时，下降水深先增大后减小，当层距与池深比值 m＝0．4时，消力池消能效果较好，且比值较大时，下降水深相对于最大值显著减少。
기우전기소력지내포치쌍층현책모형시험표명，개변쌍층현책층거대소능효과영향현저，위진일보연구층거개변후현책소능규률，급심조쌍층현책최우포치형식제공의거，통과보지책조수화책거등영향인소불변，개변현책층거，재q0＝21．43 L／s화 q0＝18．57 L／s량충단관류량하진행시험，통과관찰소력지내류태，계산하강수심급소능솔，착중분석료층거개변대하강수심적영향，시험결과표명：①층거개변대소능솔영향불대，대하강수심영향교대；②층거개변시，하강수심선증대후감소，당층거여지심비치 m＝0．4시，소력지소능효과교호，차비치교대시，하강수심상대우최대치현저감소。
The early model experiment based on arranging double suspended grid in the stilling pool showed that changing the layer distance of double suspended grid significantly affected energy dissipation effects .For future experiment on energy dissipation law of grid after changing the layer distance offered a basis for finding the optimal arrangement type of the double suspended grid ,through keeping numbers and distance of grid unchanged ,only changing the layer distance ,an experiment conducting under the two‐unit width flow rates of q0 =21 .43 L/s and q0 =18 .57 L/s .The results showed that :①changing layer distance was less effective on the water depth and more effective on the water depth .②When the layer distance changes ,the water depth first increases then decreases . When the ratio of the layer distance and the pool depth m=0 .4 ,energy dissipation effects of the stilling pool are better .And when the ratio is bigger ,the water depth is significantly less than the maximum .