水电与新能源
水電與新能源
수전여신능원
HYDROPOWER AND NEW ENERGY
2014年
5期
40-42
,共3页
贾鸿益%罗孝明%平有洪%肖群香
賈鴻益%囉孝明%平有洪%肖群香
가홍익%라효명%평유홍%초군향
掺气水深%泄槽%渣场
摻氣水深%洩槽%渣場
참기수심%설조%사장
aerated water depth%chute%residue field
高落差、陡坡泄槽水流流速较高,易形成自掺气水流,水深加大。如果对掺气水深估计不足,泄槽边墙高度不够,将会威胁建筑物的安全。利用某渣场排水系统泄槽沿程掺气水深的计算分析,比较了常用的几种掺气水深计算方法,并与模型试验成果对比。本例中王俊勇公式与模型试验成果接近,泄槽完建后运行良好。
高落差、陡坡洩槽水流流速較高,易形成自摻氣水流,水深加大。如果對摻氣水深估計不足,洩槽邊牆高度不夠,將會威脅建築物的安全。利用某渣場排水繫統洩槽沿程摻氣水深的計算分析,比較瞭常用的幾種摻氣水深計算方法,併與模型試驗成果對比。本例中王俊勇公式與模型試驗成果接近,洩槽完建後運行良好。
고락차、두파설조수류류속교고,역형성자참기수류,수심가대。여과대참기수심고계불족,설조변장고도불구,장회위협건축물적안전。이용모사장배수계통설조연정참기수심적계산분석,비교료상용적궤충참기수심계산방법,병여모형시험성과대비。본례중왕준용공식여모형시험성과접근,설조완건후운행량호。
In steep chute with a great fall , the water flow velocity is usually high and self -aerated flow tends to occur . The water depth in the chute will increase accordingly .If the side wall is not high enough because of the underestimation of the aerated water depth , safety of the structures will be threatened .In this paper , several calculation formulae for aer-ated water depth that are commonly used are compared with a chute example in the drainage system of a residue field . Model test results are also given and serve as the benchmark .It shows that the calculation result from Wang Junyong for-mula is close to the test results .The chute is then built following the results and a good performance is shown .