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双线地铁区间隧道长度大于1km时,一般需在上、下行隧道之间设置联络通道(简称旁通道)和泵站,用于发生意外事故时人员疏散和渗漏水排放。经建设、设计、施工单位反复研究,决定在上海地铁2号线陆家嘴路站至东昌路站两条区间隧道之间采用矩形顶管法建造联络通道和泵站,顶进距离10.8m,通道覆土厚度17.9m。联络通道采用钢管节顶进后浇筑混凝土,通道截面净尺寸为2.1m×1.4m,联络通道中间设
When the length of double-track subway tunnel is more than 1km, it is generally necessary to set up a communication channel (referred to as bypass channel) and a pump station between the upper and lower tunnels for personnel evacuation and leakage of water during accidents. After repeated research by the construction, design and construction units, the decision was made to construct a liaison channel and a pumping station between the two tunnels of Lujiazui Road Station and Dongchang Road Station of Shanghai Metro Line 2 with a distance of 10.8m and a channel Cover the soil thickness of 17.9m. The contact channel adopts the steel pipe section to push in and then pour the concrete, the net section size of the channel is 2.1m × 1.4m, and the middle of the communication channel