引用本文: | 樊玉苗,靳晓辉,王军涛,等.灌溉输水系统水力响应分析方法及其应用[J].灌溉排水学报,0,():-. |
| fan yumiao,jin xiaohui,wang juntao,et al.灌溉输水系统水力响应分析方法及其应用[J].灌溉排水学报,0,():-. |
|
摘要: |
摘 要:【目的】开展灌溉渠系水力响应分析研究,促进灌溉输水系统调控能力提升,为渠道运行中工作人员制定调控策略提供科学依据。【方法】本文通过分析灌溉输水渠道运行控制要求及水力控制复杂性,构建利用水力学相关公式直接、便捷计算的三项水力响应特征指标:水力响应时间、分水流量敏感性、渠道水位敏感性,以此对影响渠系建筑物调控策略制定的主要关切点进行定量表征,并以山西省夹马口引黄干渠为例进行了分析应用。【结果】夹马口干渠在75%设计流量下,渠首至渠尾节制闸的水力响应时间约为13.75h。根据分水流量敏感性指标,位于夹马口干渠下游段分水渠道的分水流量较易受水位波动的影响,新城庄支渠、云考支渠、祁店支渠及上朝支渠的分水闸开度设置误差对分水流量的影响较大。夹马口干渠的水位敏感性指标表明,流量变化对水位的影响程度自渠道上游至下游逐渐增强。【结论】本文提出直接利用水力学公式计算的水力响应特征指标,其中水力响应时间可为渠系建筑物调控时间的确定提供参考,敏感性指标可量化识别渠系沿线建筑物的敏感性,有助于提高工作人员管理水平。 |
关键词: 灌溉输水系统;水力响应;特征指标;调控策略;夹马口灌区 |
DOI: |
分类号:TV93 |
基金项目:黄科院2020年科技发展基金(黄科发202004、黄科发202005),河南省青年科学(202300410544)
|
|
Analysis Method and Application of Hydraulic Response of Irrigation Water Delivery System |
fan yumiao, jin xiaohui, wang juntao, chang buhui, liang bingjie, yao jingwei
|
Yellow River Institute of Hydraulic Research
|
Abstract: |
Abstract: 【Background】Due to the time lag of channel water delivery, the inevitability of disturbances, and the coupling of adjustments, irrigation channels are still facing great challenges in delivering irrigation water resources on time, quantity, safety, and stability for users.【Objective】The purpose of this paper is to carry out analysis and research on the hydraulic response of the irrigation canal system, promote the improvement of the control ability of the irrigation water delivery system, and provide a scientific basis for the staff in the channel operation to formulate control strategies.【Method】This paper analyzes the operation control requirements of irrigation water delivery channels and the complexity of hydraulic control, and constructs three hydraulic response characteristic indicators that can be directly and conveniently calculated using hydraulics-related formulas: hydraulic response time, water flow sensitivity, channel water level sensitivity, In this way, the main concerns that affect the formulation of canal building control strategies are quantitatively characterized, and the analysis and application of the main canal of the Jiamakou Irrigation District in Shanxi Province as an example.【Result】Under 75% of the design flow of the Jiamakou main canal, the hydraulic response time of the control gate from the head to the end of the canal is about 13.75h. According to the water flow sensitivity index, the water flow of the water distribution channel located in the downstream section of the Jiamakou main canal is more susceptible to water level fluctuations. The opening setting errors of the sluice gates of the Xinchengzhuang branch, Yunkao branch, Qidian branch and Shangchao branch have a greater impact on the diversion flow. The water level sensitivity index of the Jiamakou main canal shows that the degree of influence of flow changes on the water level gradually increases from the upstream to the downstream of the channel.【Conclusion】This paper proposes a hydraulic response characteristic index system calculated directly using hydraulic formulas. The hydraulic response time can provide a reference for determining the control time of canal buildings. Sensitivity indicators can quantify the sensitivity of buildings along the canal system, which is helpful to improve staff management level. |
Key words: Irrigation water delivery system; hydraulic response; characteristic index; control strategy; Jiamakou irrigation district |