深穗中跨珠江口通道选用盾构法隧道方案的风险及对策  

Risks and Countermeasures for the Shenzhen-Guangzhou-Zhongshan(SGZ)Shield-Tunnel Project Crossing the Pearl River Estuary

作　　者：黄威然[1,2] 竺维彬[3] 刘人怀[1] 

机构地区：[1]暨南大学理工学院,广州510632 [2]广州轨道交通建设监理有限公司,广州510010 [3]广州市地下铁道总公司,广州510335

出　　处：《现代隧道技术》2014年第4期178-184,共7页Modern Tunnelling Technology

摘　　要：长大深水底隧道面临着复杂地质、环境保护、港口产业、航道交通、空域交通、异常气象等风险,盾构法隧道作为一种环境友好型工法,具有自身独特的优势去克服以上风险。文章针对深圳、广州至中山跨珠江口通道工程的特点,基于广州地铁在类同复合地层盾构工程的大规模实践成果,同时结合国内外大直径、高水压、长距离推进等盾构施工关键技术的突破和经验,对施工方案进行了综合研究,认为盾构法三隧洞方案"功能齐备、质量保障、经济合理、风险可控等优势明显,为本工程最优方案,并进一步分析了本盾构隧道工程的风险及对策。Regarding the risks involved in the construction of a long and deep submarine tunnel, such as complex geology, environmental protection, port industry, waterway transportation, air transportation, and abnormal meteorology, the environmentally friendly shield-driven tunnel construction method option has unique advantages. Based on the construction characteristics of the Shenzhen-Guangzhou-Zhongshan （SGZ） fixed link that crosses the Pearl River estuary, the achievements of the Guangzhou Metro in similar mixed ground, as well as the construction experience gained from international large-diameter, high-hydraulic-pressure and long-distance shield tunnel projects, the following conclusion is derived in this paper： the three-tube tunnel system is the optimal construction scheme because of its suitable functions, guaranteed quality, reasonable costs, and controllable risks. Additionally, a further analysis of the risks and countermeasures is described as a reference for similar projects.

关 键 词：珠江口通道 复合地层 盾构法隧道 风险及对策 

分 类 号：U455.43[建筑科学—桥梁与隧道工程] U458.1[交通运输工程—道路与铁道工程]