Research on Combined Construction Technology for Cross-Subway Tunnels in Underground Spaces

Xiangsheng Chen

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Engineering ›› 2018, Vol. 4 ›› Issue (1) : 103-111. DOI: 10.1016/j.eng.2017.08.001
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Research on Combined Construction Technology for Cross-Subway Tunnels in Underground Spaces

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Abstract

Given the increasingly notable segmentation of underground space by existing subway tunnels, it is difficult to effectively and adequately develop and utilize underground space in busy parts of a city. This study presents a combined construction technology that has been developed for use in underground spaces; it includes a deformation buffer layer, a special grouting technique, jump excavation by compartment, back-pressure portal frame technology, a reinforcement technique, and the technology of a steel portioning drum or plate. These technologies have been successfully used in practical engineering. The combined construction technology presented in this paper provides a new method of solving key technical problems in underground spaces in effectively used cross-subway tunnels. As this technology has achieved significant economic and social benefits, it has valuable future applications.

Keywords

Operating subway tunnel / Underground space / Construction / Combined technology

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Xiangsheng Chen. Research on Combined Construction Technology for Cross-Subway Tunnels in Underground Spaces. Engineering, 2018, 4(1): 103‒111 https://doi.org/10.1016/j.eng.2017.08.001
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2018 2018 THE AUTHORS. Published by Elsevier LTD on behalf of Chinese Academy of Engineering and Higher Education Press Limited Company. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
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