[关键词]
[摘要]
当隧道内发生涌水现象,超出区间废水泵房的排水能力时,地铁运营管理部门应及时进行应急排水。针对地铁区间隧道应急排水问题,结合工程实例,介绍了直接排水、并联排水和串联排水的应急排水方案。直接排水简单、方便、高效,适用于距离短、埋深小的区间隧道;运用并联排水和串联排水,能够有效提高流量或扬程,同时可在很大程度上降低抢险人员的劳动强度,适用于长大区间隧道。排水泵是应急排水工程的主要工具,应根据现场实际所需流量和扬程情况,按照安装方式、排水水质和能量来源,选择合理的排水泵。物联网技术的开发和应用为地铁隧道应急排水系统的信息采集、物理定位、资源共享、隐患排查等提供了方便。
[Key word]
[Abstract]
When water inrush occurs in a tunnel and the drainage capacity of the tunnel wastewater pump is exceeded, subway transportation departments should carry out timely emergency drainage. To address the problem of emergency drainage of metro tunnels, emergency drainage schemes for direct, parallel, and series drainage are introduced. Direct drainage is simple, convenient and efficient, and is suitable for short-distance and small-depth interval tunnels. The use of parallel drainage and series drainage can effectively increase the flow rate or head, and at the same time can greatly reduce the labor intensity of emergency personnel, which makes it suitable for long and large interval tunnels. Drainage pumps are the main tools used in emergency drainage projects. A reasonable drainage pump should be chosen according to the flow, installation method, drainage water quality, and energy source, and the development and application of Internet of Things technology provides a convenient method of information collection, physical location monitoring, resource sharing, and hidden trouble investigation within subway tunnel emergency drainage systems.
[中图分类号]
U231
[基金项目]