【摘要】 为了进一步探讨一字闸下游的最佳消能形式和一字闸最佳抗冻方案,在一字闸水力特性试验研究的基础上,根据一字闸水流特点,提出4种底流消能工进行对比试验。通过对水流流态、流速分布、消能率等因素的综合分析,认为对渠系建筑物中的小型一字闸,宜选取挖深式消力池做消能工。通过对5种防冻方案的试验研究,提出了聚苯乙烯板保温法为最佳方法。更多还原

【Abstract】 Contrast experiment of four kinds of energy dissipater of bottom flow is conducted in order to probe the optimal energy dissipation form downstream of single-line shape sluice and the best alternatives of anti-frost of the sluice, on the basis of the research on the hydraulic characteristics of the sluice. Through comprehensive analyses on the factors of the flow form, the speed distribution and energy dissipation rate of water flow, we draw the conclusions that the deep-digging pond is the best choice for energy dissipation for the small sluice of single-line shape in the field canal structures; and the optimal method for heat preservation is to use polypheny plates.更多还原