Simplistic Design Methods for Moderate-Sloped Stepped Chutes
Simplistic Design Methods for Moderate-Sloped Stepped Chutes
复制标题
中等坡度阶梯溜槽的简单化设计方法
DOI：
10.1061/(asce)hy.1943-7900.0000938
复制
发表时间：
2014
影响因子：
2.4
通讯作者：
G. J. Hanson
中科院分区：
文献类型：
--
作者：
S. Hunt;K. C. Kadavy;G. J. Hanson
陡槽阶梯式泄槽水力特性的研究已有许多成果。阶梯式泄槽应用于更缓和的斜坡（如用于老化堤坝的斜坡）是一种日益增长的趋势，因此在这一竞技场中的研究活动也有所增加。虽然有许多阶梯式溜槽设计指南，但其中一些很复杂，使用起来有些麻烦。针对台阶高度（h）与临界流深（dc）之比和泄槽坡度（θ）（即， 0.035≤h/dc≤2.27和14°≤θ≤26.6°）。本研究的目的是（1）评估台阶高度与临界流深之比和斜槽坡度对表面起始点、清水和混合流深、空气浓度和能量系数的影响;（2）为实践工程师开发实用、直接的设计关系。在测试过程中收集了详细的流量测量结果，并将结果在…
AbstractNumerous research contributions have been made on the hydraulic properties for steep, stepped chutes. Stepped chutes applied to more moderate slopes like those for aging embankment dams are a growing trend, and research activities as a result have increased in this arena. Although numerous stepped chute design guidelines are available, some of them are complicated and somewhat cumbersome to use. A multiyear, large-scale physical model study was conducted for a broad range of step height (h) to critical flow depth (dc) ratio and chute slope (θ) (i.e., 0.035≤h/dc≤2.27 and 14°≤θ≤26.6°). The objectives of the study were to (1) evaluate the step height to critical flow depth ratio and the chute slope affect on the surface inception point, clear water and bulked flow depth, air concentration, and energy coefficient; and (2) develop practical, straight-forward design relationships for practicing engineers. Detailed flow measurements were collected during testing, and the results were compared in terms of...