长距离有压隧洞引调水工程过渡过程研究  

Study on the Transition Process of Long Distance Pressure Tunnel Water Diversion Project

作　　者：陈岚 朱梅 李琦 李硕 李烽 Chen Lan;Zhu Mei;Li Qi;Li Shuo;Li Feng(Hubei Provincial Institute of Water Resources and Hydropower Planning,Survey and Design,Wuhan 430072,Hubei;Hubei Provincial Institute of Water Resources and Hydropower Research,Wuhan 430072,Hubei)

机构地区：[1]湖北省水利水电规划勘测设计院,湖北武汉430072 [2]湖北省水利水电科学研究院,湖北武汉430072

出　　处：《陕西水利》2023年第7期5-8,共4页Shaanxi Water Resources

摘　　要：在有压隧洞运行期间,由于流量调节或事故等原因导致长距离输水系统发生非恒定流的现象,需对其水力过渡过程进行研究。过渡过程发生时,输水系统沿线的水力参数随时间变化发生急剧变化,往往超出恒定流的设计范围,从而对输水系统造成不利影响,尤其是在有压输水隧洞中,由于流速的急剧变化会导致水锤产生。针对引江补汉输水沿线补水工程输水流量大、隧洞超长的工程特点,对其水力过渡过程影响性进行分析、研究,并提出相应的处理措施,可为类似工程提供经验。During the operation of pressure tunnels,the phenomenon of unsteady flow occurs in long-distance water delivery systems due to flow regulation or accidents,and its hydraulic transition process needs to be studied.When the transition process occurs,the hydraulic parameters along the water conveyance system undergo rapid changes over time,often exceeding the design range of constant flow.This can have adverse effects on the water conveyance system,especially in pressurized water tunnels where rapid changes in flow velocity can lead to water hammer generation.Analyze and study the impact of hydraulic transition process on the characteristics of large water flow and excessively long tunnels in the water supply projects along the Yangtze River and Han River Diversion Project.And propose corresponding treatment measures,which can provide experiencefor similar projects.

关 键 词：有压隧洞 过渡过程 水锤 调压室 

分 类 号：TV672.1[水利工程—水利水电工程]