研究目的：台山核电海底隧道工程是我国首条盾构海底隧道，隧道外径9 m，穿越中风化岩层、软土、砂层及土石交界面，地质条件复杂且位于海底。主要工程特点：大直径、长距离、复杂地质条件下盾构施工。存在难点包括：隧道工法选择、纵断面设计、结构设计、盾构选型及刀盘设计、盾构穿越土石分界及孤石群处理方案。通过理论分析研究和工程类比，确定安全合理设计方案。
研究结论：（1）本工程海底隧道设计采用复合式泥水平衡盾构，钻爆法结合盾构法施工，通用管片+二次衬砌的复合式衬砌模式，能有效解决复合地层长距离水下掘进难题；（2）复合式盾构刀盘设计、水下孤石爆破处理能有效地解决盾构在土石交界面掘进高风险、低效率的难题；（3）通过实践证明本工程设计能有效地解决海底隧道相关技术难点，施工风险得到有效控制，可为今后同类工程及海峡隧道研究建设提供借鉴。
Abstract
Abstract：Research purposes：The subsea tunnel project in Taishan nuclear power station is the first subsea shield tunnel in China with external diameter 9 m through middle weathered rock, clay, sand and the interface of soil and rock. The geological and geotechnical condition in this tunnel is very complex. The main character of this project is large diameter shield tunnel, long distance construction in complex geological strata. The difficulties include tunneling construction method, longitudinal profile design, structure design, TBM selection and cutting head design, the treatment of tunneling through interface of soil and rock and boulders group. Through theory analysis and experience analogy, the safe and reasonable design scheme was demonstrated.
Research conclusions：(1)The tunnel machine in this project adopt the mix-shield TBM, Shield tunneling method combines with New Austria Tunneling Method. The lining of the tunnel is combined type of universal segments lining and cast in concrete lining. It effectively solves the problem of long distance and under the sea tunneling. (2) The mix-shield cutter head design, boulders blast under the sea solves the problem of high risk and low efficiency speed of tunneling. (3)Through practice, it is demonstrated that this design can effectively solve the technical problems of subsea tunnel, and effectively control the construction risks, which can provide some references for the related projects and future channel tunnels construction.
关键词
海底隧道 /
盾构与钻爆法结合 /
复杂地质
{{custom_keyword}} /
Key words
Key words: subsea tunnel /
Shield tunneling method combines with New Austria Tunneling Method /
complex geology
{{custom_keyword}} /
{{custom_sec.title}}
{{custom_sec.title}}
{{custom_sec.content}}
参考文献
［1］洪开荣. 我国盾构隧道发展中的几个问题［C］//地下工程高层论坛会议论文集，2004.
Hong Kairong. Some Problems of the Shield Tunnelling Development in China［C］//Conference Proceedings of The Top Forum For The Underground Engineering, 2004.
［2］卿三惠, 谢文清, 辜文凯, 等. 胶州湾海底隧道钻爆发施工关键技术创新［J］. 铁道工程学报，2011（9）：63-69.
Qing Sanhui, Xie Wenqing, Gu Wenkai,etc. Innovation of Key Construction Technology for Kiaochow Bay Submarine Tunnel with Boring and Blast Method［J］. Journal of Railway Engineering Society, 2011(9):63-69.
［3］周文波. 盾构法隧道施工技术及应用［M］. 北京：中国建筑工业出版社，2004.
Zhou Wenbo. Shield Tunnelling Technology and Application［M］. Beijing: China Architecture & Building Press, 2004.
［4］朱伟，译. 隧道标准规范（盾构篇）及解说［M］. 北京：中国建筑工业出版社，2001.
Translated by Zhu Wei. Standard Code for Tunnel(Shield Tunnelling)［M］. Beijing: China Architecture & Building Press, 2001.
［5］刘建航，侯学渊. 盾构法隧道［M］. 北京：中国铁道出版社,1991.
Liu Jianhang, Hou Xueyuan. Shield Tunnelling Method［M］. China Railway Publishing House，1991.
［6］张凤祥，朱合华，傅德明. 盾构隧道［M］. 北京：人民交通出版社，2004.
Zhang Fengxiang, Zhu Hehua, Fu Deming. Shield Tunnel［M］. Beijing: China Communications Press,2004.
［7］王效文. 地铁盾构隧道施工组织影响因素分析［J］. 现代隧道技术，2005（12）：53-57.
(下转第101页To P.101)（上接第79页From P.79）Wang Xiaowen. Analysis of the Factors Affecting the Construction Organization of Shield Tunnels of Subway［J］. Modern Tunnelling Technology, 2005(12):53-57.
［8］齐震明，唐检军. 深圳复杂地质条件下盾构法隧道施工技术［J］. 西部探矿工程，2005（8）:97-98.
Yan Zhenming, Tang Jianjun. Shield Tunnelling Method in the Complex Geotechnical Strata of Shenzhen［J］. West-China Exploration Engineering, 2005（8）:97-98.
［9］GB 50446—2008，盾构法隧道施工与验收规范［S］.
GB 50446—2008，Code for Construction and Acceptance of Shield Tunnelling Method［S］.
［10］张庆贺，王慎堂，严长征，等. 盾构隧道穿越水底浅覆土施工技术对策［J］. 岩石力学与工程学报，2004（5）:857-861.
Zhang Qinghe, Wang Shentang, Yan Changzheng,etc. Tunnelling Methods Through River(Lake, Sea) Bed under Shallow Covering by Shield［J］. Chinese Journal of Rock Mechanics and Engineering，2004（5）:857-861.
［11］陈韶章, 洪开荣, 张弥. 复合地层盾构设计概论［M］. 北京：人民交通出版社，2010.
Chen Shaozhang, Hong Kairong, Zhang Mi. Introduction to Shield Tunnel Design in Complex Strata［M］. Beijing: China Communications Press,2010.
{{custom_fnGroup.title_cn}}
脚注
{{custom_fn.content}}
PDF(843 KB)
