【摘要】：采用ITM(Illinois Transient Model)模型模擬了廣州市東濠涌深層排水隧道入流過程,通過對正常和特殊運行工況多種情景的模擬,研究了涌浪產(chǎn)生的條件和過程,并探討了消除涌浪的工程措施和管理措施。研究表明,在正常運行工況下,東濠涌深層排水隧道系統(tǒng)有足夠的能力應(yīng)對10年一遇重現(xiàn)期的設(shè)計暴雨,隧道中不會產(chǎn)生涌浪現(xiàn)象。豎井中設(shè)置調(diào)蓄池,能小幅降低波動水位,但對隧道中瞬態(tài)水流的影響較小。隧道與排水泵站的分隔閘門突然關(guān)閉或排水泵站突然停止抽水等特殊工況,會發(fā)生涌浪風(fēng)險,需要采取相應(yīng)技術(shù)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.
【作者單位】： 廣州市市政工程設(shè)計研究總院;
【分類號】：TU992
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本文編號：2453274