【摘要】 结合某尾矿库泄水建筑物水力模型试验，就建于尾矿库岸坡的圆形框架挡板式排水竖井的溢流流态特征、流态过渡界限、流量与水位关系及流量系数等作一些探讨。试验表明，竖井进水口附近的地形对溢流流态、流态过渡界限及流量系数等影响十分显著。此外，本文根据试验实测资料的数值分析整理，提出竖井在不同堰顶高度时流量及流量系数的经验计算公式。更多还原

【Abstract】 The paper deals mainly with the hydraulic model testing on release works of a mine tailing reservoir. On the basis of the systematical experimental data of the testing, some hydraulic phenomena were analyzed inside a circular shaft well at mountain side around the reservoir, such as the types and criteria of flow and now behavior through the shaft, head-discharge relationship, as well as its coefficients. The findings have shown that the influence or topography around the inlet or the shaft well is fairly apparent on the above-metioned hydraulic behaviors. The paper also give some semi-empirical formulas to calculate the quantity of the current and coefficients of flow through the release works resulting from the present studies.更多还原