摘要
城市轨道交通区间隧道废水泵房与联络通道普遍采用合并建设的方式。国内软土地区的联络通道(兼废水泵房)目前多采用冻结法+矿山法施工,废水泵房需在联络通道开挖完成后,在其底部往下开挖3~5 m,施工风险很大。结合宁波市轨道交通工程,设计了盾构区间内置式泵房,并详细介绍了泵房的总体布置和相关专业的设计方案。该设计能够满足废水泵房的使用功能,同时满足现行设计规范的要求。内置式泵房的泵房位置从区间隧道外调整至区间隧道内,大大减小了联络通道的体量,从而减小了区间隧道的施工风险。同时,泵房与联络通道分离,使得联络通道的平面位置选择和区间纵断面的设计更为灵活。
In urban rail transit tunnel project,the construction of connected aisle is always merged with waste water pump house. In soft soil areas,this construction often adopts freezing method and mine method to reinforce the soil and excavate the tunnel. During which,the waste water pump house is always built after the connected aisle and located 3 ~ 5 m downwards the connected aisle,encountering great engineering risks. Combined with a Ningbo rail transit project,a design scheme of the built-in pump house in shield tunnels is proposed,the general layout of pump house and the relevant program design are introduced in detail. The scheme could meet both the using functions of waste water pump house and the requirements of the applicable design codes at the same time. In the scheme,the pump house is removed from outside the tunnel to the interval tunnel,greatly reducing the dimension of the connected aisle and tunnel construction risks. Also,the separation of the pump house makes the location of connected aisle and the design of tunnel interval section more flexible.
作者
朱瑶宏
ZHU Yaohong(Ningbo Rail Transit Group Co.,Ltd.,315101,Ningbo,China)
出处
《城市轨道交通研究》
北大核心
2018年第8期12-16,共5页
Urban Mass Transit
关键词
城市轨道交通
内置式泵房
联络通道
区间隧道
urban rail transit
built-in pump house
connected aisle
interval tunnel
