大直径主动铰接盾构小曲线下穿地铁施工技术——以长春市地铁6号线为例

Construction Technology of Small Curve Underground Subway with Large Diameter Active Hinged Shield—Take Changchun Metro Line 6 as An Example

铰接盾构小曲线下穿地铁施工技术采用平衡盾构机进行主动铰接的方式完成地铁掘进施工工程。本文以长春地铁6号线隧道工程为例,通过对其中采用的主动铰接盾构小曲线下穿地铁施工技术的施工重点和难点进行详细的论述,着重讨论了主动铰接盾构施工技术的控制措施和安全性能的提升方式,为在隧道地铁掘进施工工程中进一步完善主动铰接盾构施工技术提供可行性建议。

The construction technology of the small curve underpass subway of articulated shield adopts the balanced shield machine to carry out the active articulation to complete the subway excavation construction project.Taking Changchun Metro Line 6 as an example,this paper discusses the key and difficult points of the construction technology of the active hinged shield under the small curve,and discusses the improvement of the control measures and the way of improving the safety performance of the construction technology.The feasibility suggestions are provided for further improving the construction technology of active hinged shield in the construction of tunnel.