城市轨道交通 urban rail transit/mass transit设计使用年限 designed lifetime运营概念 operation concept旅行速度 operation speed限界 gaugePlatform Screen Doors (PSD 平安门正线 main line辅助线 assistant line联络线 connecting line试车线 testing line轨道构造 track structure轨距 gauge of track无缝线路 seamless track整体道床 monolithic track-bed路基 subgrade站台计算长度 puted length of platform车站公共区 public zone of station无缝线路纵向水平力 longitudina horizontalforce of seamlesstrack无缝线路断轨力 broken rail force of seamless track名挖法 cut and cover盖挖顺筑法 cover and cut-bottom up盖挖逆筑法 cover and cut-top down矿山法 mining method盾构法 shield method沉管法 immersed tube method防水等级 grade of waterproof变形缝 deformation joint刚柔结合的密封区 rigid-fle*ible joint of sealed zone开式运彳亍 open made operation闭式运彳亍 close made operation活塞通风 piston action ventilation合流制排放 bined sewer system集中式供电 centralized p