
4月11日23点50分,随着盾构机巨大的刀盘从洞门掌子面破土而出,杨塘路站~东大街站盾构区间左线顺利贯通!与此同时,也代表着宁句城际轨道交通全线盾构区间实现洞通!
南京至句容城际轨道交通工程起于马群站,终于句容站,全长约43.70km。其中DS6-TA02标全长17.286km,含5站(2座地下站,3座高架站)7区间1出入线及1车辆段,起点汤山站,向东经黄梅站、宝华山站,过肖杆河转向南,过杨塘路站后,逐渐由高架转为地下,经东大街站后,在二圣路南侧设终点站句容站。其中,杨塘路站~东大街站盾构区间左线里程范围YK38+974.735~YK40+604.548,区间长度1629.813m,采用盾构法施工。盾构始发井于文昌东路以南约150m处,区间沿东昌中路东侧向南延伸,下穿上阳小区,继续向南到达东大街站。盾构机在里程ZK39+987.129处进行开仓换刀作业。区间主要位于上软下硬地层,同一开挖断面地层均一性差、软硬差距大,隧道施工范围管线种类繁多,管网错综复杂,施工风险多,工程难度大。
宁句城际轨道交通杨塘路站~东大街站盾构区间左线顺利贯通暨宁句城际全线盾构区间实现洞通是宁句城际项目建设的重要节点,对年底通车预期目标的实现具有重要意义。
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