CAJ | 학술논문

宽尾墩、窄缝挑坎收缩式消能工应用于高拱坝表孔、深孔后，可获得多股窄长射流交错入射水垫塘，实现高拱坝坝身下泄多股水流无碰撞消能。但各股窄长水流间的间距如何影响其消能效果有待进一步研究。采用模型试验的方法在1∶400水工模型上，研究了射流水股间横向间距对水垫塘水力特性的影响。研究结果表明：随着窄长射流横向间距的减小，射流相互干扰掺混，冲击动压的压力峰形态由多峰合并为单峰，冲击动压值增大；冲击动压值随上游水深的增加而增大，随下游水深的增加而减小。
관미돈、착봉도감수축식소능공응용우고공패표공、심공후，가획득다고착장사류교착입사수점당，실현고공패패신하설다고수류무팽당소능。단각고착장수류간적간거여하영향기소능효과유대진일보연구。채용모형시험적방법재1∶400수공모형상，연구료사류수고간횡향간거대수점당수력특성적영향。연구결과표명：수착착장사류횡향간거적감소，사류상호간우참혼，충격동압적압력봉형태유다봉합병위단봉，충격동압치증대；충격동압치수상유수심적증가이증대，수하유수심적증가이감소。
Without impact happened to the multi-strand elongated jet impinging into plunge pool is attained by applying the flaring piers and slit-type bucket respectively,achieving multi-jet discharged without collision to high arch dissipate energy. However,the effect of the spacing between each strand elongated jet on its energy dissipation needs further study. In this paper,the effect of the lateral spacing between each jet on the hydraulic characteristics in the plunge pool was studied experimentally on the hydraulic model 1:400. The results show that with the lateral spacing of elongated jet reducing,the jet mixes with each other,the pressure peaks form of the impact pressure combines into a single peak and the impact pressure increases. With the upstream water level increasing,the impact pressure increases. While,the deeper the depth of downstream water cushion is,the smaller impact pressure will be.