超大直径土压平衡盾构在中心城区公路隧道中的应用技术探讨

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摘要在上海外滩公路隧道施工中，首次采用了直径为14.27 m的超大直径土压平衡盾构。文章以此为工程背景，围绕超大断面的开挖面稳定、浅覆土施工、近距离穿越运营中地铁和历史保护建筑群等诸多难题，从盾构的针对性设计、关键施工技术、构筑物保护措施等方面对超大直径土压平衡盾构的施工技术进行了详细的论述；分析了超大直径土压平衡盾构推进对周边环境的影响规律，并与常规的地铁盾构、同级别的超大直径泥水平衡盾构进行了比较，指出了超大直径土压平衡盾构的优劣；结合中国城市交通建设的发展趋势，对超大直径土压平衡盾构在城市中心区域的应用前景和进一步的研究方向进行了展望。

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关键词：城市公路隧道土压平衡盾构针对性设计关键施工技术

Abstract： An EPB shield with an extra-large diameter of 14.27m was used for the first time in China in the construction of the Shanghai Bund Channel Project. According to the engineering characteristics, this paper: presents the technical problems concerning the face stability of the extra-large section, excavation under shallow cover, crossing of an adjacent operating metro tunnel and historical buildings; describes in detail the specific design, key construction techniques, and protective measures for the structures; analyzes the impacts on the surrounding environment induced by the extra-large diameter EPB shield driving; and points out the pros and cons of the extra-large diameter EPB shield in comparison to the conventional shield and extra-large diameter slurry shield. In conjunction with the development trends of urban transportation projects in China, the application prospects and directions for the development of extra-large diameter EPB shields in central urban areas are presented.

Keywords： , Urban road tunnel, EPB shield, Specific design, Key construction technique

出版日期: 2012-06-13

作者简介: 周文波（1964- ），男，博士生导师，教授级高级工程师，主要从事地下工程力学问题研究，E-mail：bobchow@vip.163.com.

引用本文:

.超大直径土压平衡盾构在中心城区公路隧道中的应用技术探讨[J] 现代隧道技术, 2013,V50(3): 1-7

.Discussion of the Application of Extra-Large Diameter EPB Shields
to Road Tunnels in Central Urban Areas[J] MODERN TUNNELLING TECHNOLOGY, 2013,V50(3): 1-7

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