区域应急供水系统方案研究与工程设计

目前国内应急供水系统存在布局缺乏系统化、建设时序缺乏统筹、单一水源、正常供水与应急供水缺乏有效衔接及非工程性措施缺乏等问题,亟需开展应急供水系统方案探索与设计研究,为应急供水系统规划、设计工作提供科学的技术支撑。结合龙泉驿区应急供水系统规划、设计案例,探讨了应急供水特征识别、应急供水系统方案、水库应急供水工程设计要点和应急供水系统综合利用方案。提出应急供水系统应包括多水源互补、应急输水管道、多供水设施互补、应急水源补水、应急水源水质保障以及非工程性措施等,应急供水设计要点包括设计工况明确、供水方式论证、取水形式确定、输水管道单双管论证、补水设计、输水与补水管道共用论证、防水锤设计、穿越障碍物节点设计等,以期对国内区域应急供水系统规划、设计提供参考。

Scheme Study and Engineering Design of Regional Emergency Water Supply System

Lacking of layout systematization and overall construction schedule plan,single water source,the shortage of effective cohesion between the normal water supply and emergency water supply and the scarcity of non-engineering measures have become the main problems in the current domestic emergency water supply system.Emergency water supply system design exploration and research need to be carried out to provide scientific and technical support for the planning and design of emergency water supply system.Based on the planning and design case of emergency water supply system in Longquanyi District,we discussed the feature identification of emergency water supply,the scheme of emergency water supply system,the key points of design for emergency water supply project of reservoir and the comprehensive utilization scheme of emergency water supply system.It was proposed that emergency water supply system should include multiple water sources complementary,emergency water pipeline,multiple water supply facilities complementary,emergency water source complementary,emergency water source water quality guarantee and non-engineering measures,etc.The points of emergency water supply design should be composed of the clear design working conditions,the demonstration of water supply mode,the determination of water intake form,the demonstration of single and double pipes of water delivery pipeline,water supplement design,the demonstration of water conveyance and water supplement pipeline sharing,the design of water hammer prevention,the joint design of crossing obstacles,etc.,in order to provide reference for the planning and design of regional emergency water supply system.