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Key Construction Technology of Shield Tunneling Crossing underneath a Railway

School of Civil Engineering and Architecture, Anhui University of Science and Technology, Huainan 232001, China
Key Lab of Coal Deep-Well Structural Technique, Huaibei 235000, China
Author to whom correspondence should be addressed.
Academic Editors: Higinio González-Jorge and Pedro Arias-Sánchez
Infrastructures 2016, 1(1), 4;
Received: 14 August 2016 / Revised: 3 November 2016 / Accepted: 4 November 2016 / Published: 10 November 2016
PDF [988 KB, uploaded 10 November 2016]


The shield tunnel of the Kunming subway crosses beneath the Kun-Shi Railway. Due to the high requirements of railway track for settlement control, this article proposes the following technical measures for controlling the settlement based on the analysis of risks arising from the shield crossing railway: (1) Reinforcing the stratum of the region crossed by the shield in advance to achieve high stability; (2) Using a reinforced segment for the shield tunnel and increasing reserved grouting holes for construction; (3) Reasonably configuring resources, optimizing construction parameters, strengthening monitoring and information management during the shield crossing. In strict accordance with the construction plan, the shield successfully and safely crossed beneath the Kun-Shi Railway; this provides experience that can be used in similar projects in the future. View Full-Text
Keywords: subway tunnel; crossing railway; shield method; construction technology subway tunnel; crossing railway; shield method; construction technology

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Ge, J.; Xu, Y.; Cheng, W. Key Construction Technology of Shield Tunneling Crossing underneath a Railway. Infrastructures 2016, 1, 4.

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