国家雪车雪橇中心消防供水系统设计方案比选

Design Scheme Comparison and Selection of National Sliding Centre Fire Water Supply System

2022年北京冬奥会延庆赛区的国家雪车雪橇中心是我国建设的第一座雪车雪橇标准场馆,也是冬奥会中设计难度最高、施工难度最大、施工工艺最复杂的场馆之一,具有占地面积大、建筑子项多、分布分散、地形高差大等特点,其消防供水系统设计具有较大挑战性。结合项目特点和市政条件情况,随着项目的推进和外界条件的演变,形成了四种消防供水系统方案,从工程量、可行性、可靠性三方面进行了比选分析,探讨了不同方案的优劣,最终采用了方案四,即出发区1、出发区2采用临时高压消防系统,赛区内其他单体建筑采用高压消防系统,两系统共用消防水池,形成高压与临时高压相结合的消防给水系统方案,可为山地大型场馆和山地建筑群组的消防供水系统设计提供参考。

The National Sliding Centre in Yanqing Competition Area of 2022 Beijing Winter Olympics is the first standard venue constructed in China.It is also one of the venues with the highest design and construction difficulty and the most complex construction technology in the Winter Olympics.It has the characteristics such as large floor space,multiple building subitems,scattered distribution and large terrain elevation difference.Therefore,its fire water supply system design is quite challenging.Combined with project characteristics and municipal conditions,four kinds of fire water supply system schemes were formed with the development of the project and the evolution of external conditions.The advantages and disadvantages of different schemes were discussed from three aspects including engineering quantity,feasibility and reliability.The schemeⅣwas eventually adopted.That is,the departure area 1 and departure area 2 adopt temporary high-pressure fire protection systems,while other single buildings in the competition area adopt high-pressure fire protection system.The two systems shared the same fire water tank,forming a combination of high-pressure and temporary high-pressure fire water supply system scheme,which can provide a reference for the design of fire water supply system of large venues in mountainous areas and mountain building groups.