基于ITM模型的东濠涌深层排水隧道涌浪分析
发布时间：2019-04-03 14:09
【摘要】：采用ITM(Illinois Transient Model)模型模拟了广州市东濠涌深层排水隧道入流过程,通过对正常和特殊运行工况多种情景的模拟,研究了涌浪产生的条件和过程,并探讨了消除涌浪的工程措施和管理措施。研究表明,在正常运行工况下,东濠涌深层排水隧道系统有足够的能力应对10年一遇重现期的设计暴雨,隧道中不会产生涌浪现象。竖井中设置调蓄池,能小幅降低波动水位,但对隧道中瞬态水流的影响较小。隧道与排水泵站的分隔闸门突然关闭或排水泵站突然停止抽水等特殊工况,会发生涌浪风险,需要采取相应技术措施。
[Abstract]:The ITM (Illinois Transient Model) model is used to simulate the inflow process of Donghaoyong deep drainage tunnel in Guangzhou. The conditions and processes of surge generation are studied by simulating various scenarios under normal and special operating conditions. The engineering measures and management measures for eliminating surges are also discussed. The study shows that under normal operating conditions, the Donghaoyong deep drainage tunnel system has sufficient capacity to cope with the design rainstorm during the recurrence period of 10 years, and there will be no surge phenomenon in the tunnel. Setting storage tank in shaft can reduce fluctuating water level slightly, but it has little effect on transient water flow in tunnel. Due to the sudden closure of the gate of tunnel and drainage pump station or the sudden stop of pumping station, the surge risk will occur, and corresponding technical measures should be taken.
【作者单位】： 广州市市政工程设计研究总院;
【分类号】：TU992
，
本文编号：2453274
[Abstract]:The ITM (Illinois Transient Model) model is used to simulate the inflow process of Donghaoyong deep drainage tunnel in Guangzhou. The conditions and processes of surge generation are studied by simulating various scenarios under normal and special operating conditions. The engineering measures and management measures for eliminating surges are also discussed. The study shows that under normal operating conditions, the Donghaoyong deep drainage tunnel system has sufficient capacity to cope with the design rainstorm during the recurrence period of 10 years, and there will be no surge phenomenon in the tunnel. Setting storage tank in shaft can reduce fluctuating water level slightly, but it has little effect on transient water flow in tunnel. Due to the sudden closure of the gate of tunnel and drainage pump station or the sudden stop of pumping station, the surge risk will occur, and corresponding technical measures should be taken.
【作者单位】： 广州市市政工程设计研究总院;
【分类号】：TU992
，
本文编号：2453274
本文链接：https://www.wllwen.com/jingjilunwen/jianzhujingjilunwen/2453274.html
