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泄流能力与闸坝综合消能是关系泄洪闸枢纽作用能否发挥的重要方面,且泄洪闸闸底板上下游河床高差的不同对其泄流能力存在很大影响。文章通过甘泉堡防洪工程泄洪闸枢纽的模型试验,对闸底板上下游高差的不同值影响泄流能力进行了研究,并利用水槽试验对影响泄流能力的可能原因进行分析,推求出流量系数计算的经验公式,并通过对工程泄洪闸泄流能力的计算与误差分析验证了公式的正确性与适用性。
Flood discharge capacity and flood dam comprehensive energy dissipation are important aspects that can play a pivotal role in flood control sluice gates. Differences in upstream and downstream river bed elevation of discharge sluice gates have a great impact on their discharge capacity. Through the model test of Floodgate Project of Ganquan Fort Flood Control Project, this paper studied the influence of different values of upstream and downstream of sluice floor on the discharge capacity, analyzed the possible causes of discharge capacity by using the flume test, and deduced the flow rate Coefficient empirical formula, and through the calculation and error analysis of the discharge capacity of the project flood discharge to verify the correctness and applicability of the formula.