深埋隧洞重力自流输水快速关停策略研究

Study on quick shut down strategy for gravity water delivery of deep-buried tunnel

为提高深埋隧洞重力自流输水系统应对突发事件的快速响应能力,以罗田水库-铁岗水库输水隧洞工程为例,通过建立水力过渡过程数值计算仿真模型,对闸门或阀门的特性及布置等因素进行了分析,提出了一种可提高输水隧洞水流截断速度并保证系统运行安全性的有效阀门快速关停策略。研究成果对其他类似工程具有一定的参考价值。

To improve the rapid response of the gravity water delivery system of deep-buried tunnel to emergencies,such as pipe burst occurs in the downtown area,the water diversion tunnel project from Luotian Reservoir to Tie⁃gang Reservoir was taken as an example,and the numerical simulation model of the hydraulic transient process was established to analyze the characteristics and position of the gate or valve.An effective strategy of quick shut down was put forward,which can speed up the shut down process and ensure the safety of the pipe line.It has reference value for similar projects.