1.重庆水利电力职业技术学院,重庆,402160
2.渝西设计院,重庆,402160
张梦丽(1994—),女,硕士研究生,助教,主要从事水工结构研究工作。E-mail:1547494185@qq.com
祖云霞(1999—),女,硕士研究生,助教,主要从事水工结构研究工作。E-mail:2512244032@ qq.com
收稿:2025-08-07,
修回:2025-09-21,
录用:2025-09-30,
网络出版:2025-10-30,
移动端阅览
张梦丽,祖云霞,郭晓敏等.低水头坝消力池内倾斜悬栅辅助消能工的优化试验研究[J].人民珠江,DOI:10.3969/j.issn.1001-9235.XXXX.XX.001.
ZHANG Mengli,ZU Yunxia,GUO Xiaomin,et al.Experimental Study on Optimization of Energy Dissipator Assisted by Inclined Suspended Grid in Stilling Pool of Low-Head Dam[J].PEARL RIVER,
张梦丽,祖云霞,郭晓敏等.低水头坝消力池内倾斜悬栅辅助消能工的优化试验研究[J].人民珠江,DOI:10.3969/j.issn.1001-9235.XXXX.XX.001. DOI:
ZHANG Mengli,ZU Yunxia,GUO Xiaomin,et al.Experimental Study on Optimization of Energy Dissipator Assisted by Inclined Suspended Grid in Stilling Pool of Low-Head Dam[J].PEARL RIVER, DOI:10.3969/j.issn.1001-9235...001.
悬栅消能工是一种新型辅助消能结构,其特点是将栅条悬空设置于消力池内部。为系统研究低水头坝消力池中悬栅布置形式对消能性能的影响规律,提出一种创新性的双向交叉倾斜悬栅构型,并采用物理模型试验方法,对其最优倾斜角度与栅距组合开展优化研究。试验结果表明:悬栅采用双向交叉倾斜布置能有效降低水位差并保证消能率;在相同条件下,与水平布置和单向倾斜布置相比,其平均水位差变化率最大分别提高了45.67%和48.9%。当悬栅倾斜角为35°、组间间距为6 cm时,突破性降低水位差>75%,池内水面波动改善和水位差降低效果最为显著,故推荐其为最优设计方案。统计检验证实双向倾斜方案的优越性(p<0.001)。研究成果可为低水头坝消力池中交叉悬栅的优化布置提供理论依据与设计参考。
Background
2
Stilling basins are commonly used energy dissipation structures in hydraulic engineering
particularly for low-head dams
where they facilitate hydraulic jumps to dissipate energy and ensure smooth flow transition. In certain projects
optimizing flow patterns requires not only high energy dissipation efficiency but also effective control of the maximum water depth within the basin to suppress downstream surges and ensure channel stability. However
due to constraints such as topography and geology
expanding the basin dimensions is often impractical
making auxiliary energy dissipation structures critical for enhancing performance.
Objective
2
This study aims to systematically investigate the impact of suspended grid arrangements on energy dissipation efficiency and water surface fluctuation suppression in low-head dam stilling basins. An innovative bidirectional cross-inclined suspended grid configuration was proposed to overcome the limitations of traditional horizontal layouts
which often require multi-layer structures and increase cost and complexity.
Methods
2
Physical model tests were conducted based on Froude similarity criteria (geometric scale: 1:20). The experimental setup included an overflow dam model with a stilling basin
where suspended grids with rectangular cross-sections were installed. Four inclination angles (15°
25°
35°
and 45°) and three grid spacings (6 cm
9 cm
and 12 cm) were tested under three configurations: horizontal
unidirectional inclined
and bidirectional cross-inclined. A total of 28 test scenarios (including a control group without grids) were evaluated
with each test repeated four times to ensure reliability. Key parameters measured included water level difference (ΔH)
energy dissipation rate (
η
)
and flow patterns. Statistical analysis (ANOVA and Tukey HSD tests) was employed to validate the significance of results.
Results
2
The bidirectional cross-inclined configuration demonstrated superior perform
ance in reducing water level differences and stabilizing flow patterns. Compared to horizontal and unidirectional inclined layouts
the average reduction in water level difference increased by 45.67% and 48.9%
respectively. The optimal configuration (35° inclination with 6 cm spacing) achieved a breakthrough reduction in water level difference (
>
75%) and significantly suppressed water surface fluctuations. Statistical analysis confirmed the superiority of the bidirectional inclined design (p
<
0.001). While all grid configurations marginally improved energy dissipation efficiency (average
η
increase: 0.85%–1.58%)
the primary benefit lay in flow stabilization.
Conclusion
2
The bidirectional cross-inclined suspended grid arrangement effectively enhances energy dissipation and flow stability in low-head dam stilling basins. The recommended optimal parameters (35° inclination with 6 cm spacing) provide a cost-efficient solution without requiring complex multi-layer structures. This study offers theoretical insights and practical guidelines for optimizing suspended grid designs in hydraulic engineering applications.
肖柏青 , 戎贵文 , 刘丽红 . 悬栅消力池内水跃的数值模拟 [J]. 三峡大学学报(自然科学版) , 2014 , 36 ( 3 ): 40 - 42,45 .
XIAO B. Q. , RONG G. W. , LIU L . H. Numerical simulation of hydraulic jumps in stilling basins with suspended strips [J]. Journal of China Three Gorges University (Natural Sciences) , 2024 , 36 ( 03 ): 40 – 42, 45 .
石林平 , 廖智颖 , 谢志高 , 等 . 单侧渐扩消力池体型优化与水力特性分析 [J]. 人民珠江 , 2025 , 46 ( 1 ): 103 - 109 .
SHO, L. P. , LIAO Z. Y. , XIE Z. G. , et al . Shape optimization and hydraulic characteristics analysis of unilateral divergent stilling basin [J]. Pearl River , 2025 , 46 ( 1 ): 103 – 109 .
Bestawy A . New shapes of baffle piers used in stilling basins as energy dissipators [J]. Asian Transactions on Engineering , 2013 , 03 ( 1 ): 823 – 831 .
陈俊英 , 张新燕 , 张宽地 , 等 . T形墩应用于低佛氏数水流消能的试验研究 [J]. 中国农村水利水电 , 2005 , 47 ( 10 ): 54 - 57 .
CHEN J. Y. , ZHANG X. Y. , ZHANG K. D. , et al . Experimental research on application of T-shaped pier in small Froude number flow dissipation [J]. China Rural Water and Hydropower , 2005 , 47 ( 10 ): 54 – 57 .
钱圣 , 刘焕芳 , 林木松 , 等 . T型墩消力池优化设计试验研究 [J]. 水利水电技术 , 2014 , 45 ( 11 ): 37 - 40 .
QIAN S. , LIU H. F. , LIN M. S. , et al . Experimental study on optimized design of stilling pool with T-shaped baffle piers [J]. Water Resources and Hydropower Engineering , 2014 , 45 ( 11 ): 37 – 40 .
张春妮 , 田忠 , 王韦 . 消力池尾坎坡度对水跃及排砂效果影响的试验研究 [J]. 水力发电 , 2016 , 42 ( 1 ): 107 - 110 .
ZHANG C. N. , TIAN Z. , & WANG W . Experimental study on hydraulic jumps and desanding efficiency of stilling basin with different end slope [J]. Water Power , 2016 , 42 ( 1 ): 107 – 110 .
Tajabadi F , Jabbari E , Sarkardeh H . Effect of the end sill angle on the hydrodynamic parameters of a stilling basin [J]. The European Physical Journal Plus , 2018 , 33 ( 10 ).
郭志宇 . 水闸底流消能常见辅助消能工型式综述 [J]. 吉林水利 , 2024 , 43 ( 1 ): 51 - 56 .
GUO Z . Y. Review of common auxiliary energy dissipation modes of sluice underflow energy dissipation [J]. Jilin Water Resources , 2024 , 43 ( 1 ): 51 – 56 .
吴战营 . 消力池内辅助消能工试验研究及数值模拟 [D]. 乌鲁木齐 : 新疆农业大学 , 2013 .
WU Z . Y . Experimental study and numerical simulation of auxiliary energy dissipator in stilling pool [D]. Urumqi : Xinjiang Agricultural University , 2013 .
吴战营 , 牧振伟 . 消力池内悬栅辅助消能工优化试验 [J]. 水利水电科技进展 , 2014 , 34 ( 1 ): 27 - 31 .
WU Z. Y. , & MU Z . W. Experimental optimization of suspended grids as auxiliary energy dissipators in stilling basins [J]. Advances in Science and Technology of Water Resources , 2014 , 34 ( 1 ): 27 – 31 .
吴战营 , 牧振伟 , 潘光磊 . 导流洞出口消力池内设置悬栅消能工试验研究 [J]. 水利与建筑工程 , 2011 , 9 ( 4 ): 39 - 41,104 .
WU Z. Y. , MU Z. W. , & PAN G . L. An experimental study on optimization of suspended grid auxiliary energy dissipator in stilling basin [J]. Advances in Science and Technology of Water Resources , 2011 , 9 ( 4 ): 39 – 41, 104 .
蒋健楠 , 牧振伟 , 张佳祎 . 消力池内双层悬栅对消能效果影响试验研究 [J]. 水资源与水工程学报 , 2015 , 26 ( 3 ): 157 - 160 .
JIANG J. N. , MU Z. W. , & ZHANG J . Y. Experiment on impact of double suspended grid on energy dissipation effect in stilling pool [J]. Journal of Water Resources and Water Engineering , 2015 , 26 ( 3 ): 157 – 160 .
蒋健楠 , 牧振伟 , 张佳祎 , 等 . 基于均匀正交设计的消力池内双层悬栅布置优化试验 [J]. 中国水利水电科学研究院学报 , 2015 , 13 ( 5 ): 357 - 362 .
JIANG J. N. , MU Z. W. , ZHANG J. Y. , et al . Double suspended grid layout optimization test in the absorption basin based on the uniform orthogonal design [J]. Journal of China Institute of Water Resources and Hydropower Research , 2015 , 13 ( 5 ): 357 – 362 .
蒋健楠 , 牧振伟 , 贾萍阳 , 等 . 消力池内双层悬栅层距对消能特性影响研究 [J]. 中国农村水利水电 , 2015 , 57 ( 11 ): 156 - 160 .
JIANG J. N. , MU Z. W. , JIA P. Y. , et al . Research on the layer distance of double suspended grid impact on energy dissipation character effect in stilling pool [J]. China Rural Water and Hydropower , 2015 , 57 ( 11 ): 156 – 160 .
梁洪儒 , 谭燕平 , 刘星 , 等 . 低水头坝消力池内悬栅辅助消能工的优化试验研究 [J]. 水力发电学报 , 2018 , 37 ( 1 ): 79 - 86 .
LIANG H. R. , TAN Y. P. , LIU X. , et al . Optimization tests of suspension beam array auxiliary energy dissipaters in low-head dam stilling basin [J]. Journal of Hydroelectric Engineering , 2018 , 37 ( 1 ): 79 – 86 .
邱秀云 , 侯杰 , 孙涛 , 等 . 一种消除陡坡弯道急流冲击波的新措施 [J]. 水力发电 , 1998 , 45 ( 11 ): 18 - 20,64 .
QIU X. Y. , HOU J. , SUN T. , et al . A new measure of eliminating the torrent shock wave in steep bend channel [J]. Water Power , 1998 , 45 ( 11 ): 18 – 20, 64 .
侯杰 , 赵涛 , 牧振伟 , 等 . 悬栅消能工水力特性研究 [J]. 水力发电 , 2004 , 51 ( 1 ): 36 - 39 .
HOU J. , ZHAO T. , MU Z. W. , et al . Study on the hydraulic characteristics of suspension girder [J]. Water Power , 2004 , 51 ( 1 ): 36 – 39 .
吴战营 , 牧振伟 . 辅助消能工联合运用试验研究及数值模拟 [J]. 中国农村水利水电 , 2013 , 56 ( 07 ): 111 - 117 .
WU Z. Y. , & MU Z . W. Numerical simulation and experimental investigation on the joint use of auxiliary energy dissipater [J]. China Rural Water and Hydropower , 2013 , 56 ( 7 ): 111 – 117 .
朱玲玲 , 牧振伟 , 杨力行 . 悬栅消能工均匀正交设计及投影寻踪回归试验研究 [J]. 水资源与水工程学 , 2014 , 25 ( 6 ): 210 - 214 .
ZHU L. L. , MU Z. W. , & YANG L . X. Experiment on uniform orthogonal design and projection pursuit regression of energy dissipator of suspension gird in stilling pool [J]. Journal of Water Resources and Water Engineering , 2014 , 25 ( 6 ): 210 – 214 .
蒋健楠 , 牧振伟 , 位静静 , 等 . 悬栅消力池内水流冲刷过程中悬栅抗冲刷研究 [J]. 南水北调与水利科技 , 2017 , 15 ( 2 ): 156 - 162 .
JIANG J. N. , MU Z. W. , WEI J. J. , et al . Anti-scouring ability of suspended bars during water scouring of suspended-bar stilling basin [J]. South-to-North Water Transfers and Water Science & Technology , 2017 , 15 ( 2 ): 156 – 162 .
贾萍阳 , 牧振伟 , 蒋健楠 . 双层悬栅消能率影响因素排序及布置形式研究 [J]. 人民黄河 , 2019 , 41 ( 8 ): 120 - 123,128 .
JIA P. Y. , MU Z. W. , & JIANG J . N. Sorting of factors for double suspended grid energy dissipation ratio and best layout [J]. Yellow River , 2019 , 41 ( 8 ): 120 – 123, 128 .
周凯 , 牧振伟 , 周镇 , 等 . 底流消力池墩栅联合消能工水力特性数值模拟研究 [J]. 水资源与水工程学报 , 2023 , 34 ( 2 ): 142 - 148,156 .
ZHOU K. , MU Z. W. , ZHOU Z. , et al . Numerical simulation of hydraulic characteristics of pier-fence joint dissipators in underflow dissipation basins [J]. Journal of Water Resources and Water Engineering , 2023 , 34 ( 2 ), 142 – 148, 156 .
俞晓伟 . 低弗劳德数消力池梯形墩-悬栅联合消能工水力特性及布置参数优化研究 [D]. 乌鲁木齐 : 新疆农业大学 , 2023 .
YuU X . W . Research on hydraulic characteristics and layout optimization of trapezoidal pier-suspension grid joint energy dissipator in low Froude number stilling basin [D]. Urumqi : Xinjiang Agricultural University , 2023 .
孙文博 , 牧振伟 , 高尚 . 低弗劳德数趾墩悬栅联合消能工数值模拟 [J]. 水电能源科学 , 2019 , 37 ( 07 ): 81 - 85 .
SUN W. B. , MU Z. W. , & GAO S . Numerical simulation of joint energy dissipation of diversion pier and suspended grid with low Froude number [J]. Hydroelectric Energy , 2019 , 37 ( 7 ): 81 – 85 .
0
浏览量
0
下载量
0
CSCD
关联资源
相关文章
相关作者
相关机构
京公网安备11010802024621