论文部分内容阅读
近日,由中铁五局集团施工的北京地铁8号线三期05标天桥站-区间风井左线隧道贯通,该段顺利实现左右线贯通。天桥站-区间风井隧道全长408m,沿北京南中轴线布置,区间地质主要以砂卵石地层为主,地质情况复杂,施工难度大,技术要求高。自2016年4月11日始发以来,盾构成功穿越了天桥南大街地下通道、热力管沟、污水干渠等风险源,沉降控制在5mm以内,基本实现了地面“零沉降”的目标。
Recently, by the China Railway five groups construction of the Beijing Subway Line 8, No. 05 standard flyover station - section of the shaft through the tunnel, the smooth realization of the left and right lines through. Flyover Station - section of the tunnel with a total length of 408m, arranged along the south central axis of Beijing, the main interval of the main geological pebbles stratum, geological complex, difficult construction, high technical requirements. Since its launch on April 11, 2016, the shield successfully passed the risk sources such as the underground passage of Tianqiao South Street, the heat pipe trench and the trunk of the sewage pipe, and the settlement control is within 5 mm, basically achieving the goal of “zero settlement” on the ground .