基于EPANET的桐梓隧道反坡排水设计和分析

为提高桐梓隧道反坡排水系统管道水力计算精度,确定排水管道流速和节点水压力分布及水头损失,模拟不同类型水泵组合和排水方式,基于EPANET建立桐梓隧道反坡排水模型,通过控制管道流速和末端水压力,实现对整个排水系统的设备选型和动态模拟.结果表明:与常规计算方法相比,EPANET隧道反坡排水模型在水力计算时考虑了实际高程及局...

Design and analysis of TongZi tunnel reverse slope drainage based on EPANET

In order to improve the accuracy of hydraulic calculation of Tongzi tunnel reverse slope drainage system pipeline, The velocity of pipeline and the distribution of water pressure and head loss are determined, Simulate different types of pump combination and drainage mode, Establishment of reverse slope drainage model of Tongzi tunnel based on EPANET, Control pipe flow rate and end water pressure, Realize the equipment selection and dynamic simulation of the whole drainage system. Compared with the conventional calculation method, The actual elevation and local head loss are considered in the hydraulic calculation of tunnel reverse slope drainage based on EPANET, The calculation accuracy of total head loss is increased by more than 50%, The design flow rate is consistent with the actual flow rate. It can be seen that EPANET can simulate pumping analysis of different pump combinations, It can provide reference for the selection of drainage equipment and hydraulic calculation of tunnel reverse slope.