| 软弱破碎围岩双连拱隧道安全施工与监测 |
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| 引用本文： | 赖金星,谢永利,李华,赵严峰.软弱破碎围岩双连拱隧道安全施工与监测[J].工程地质学报(英文版),2006,14(4):513-517. |
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| 作者姓名： | 赖金星 谢永利 李华 赵严峰 |
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| 作者单位： | 1.长安大学桥梁与隧道陕西省重点实验室,西安710064; |
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| 基金项目： | 交通部行业联合科技攻关项目(200235336127)，陕西省交通科技重点项目(01-06K) |
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| 摘 要： | 针对软弱破碎Ⅱ类围岩双连拱隧道采用三导洞施工方法的特点,阐述了其安全施工技术要点,实际施工中,就其监测内容及监测结果进行了实时分析,为隧道安全施工提供了依据,长期监控量测结果表明,该隧道结构是安全的,达到了围岩与支护结构体系安全与稳定的要求,所采用的安全施工措施以及信息化施工方法对类似工程具有指导和借鉴意义.
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| 关 键 词： | 软弱围岩 连拱隧道 安全施工技术 监控量测 |
| 文章编号： | 1004-9665/2006/14(04)-0513-05 |
| 收稿时间： | 2005-11-25 |
| 修稿时间： | 2006-01-23 |
REAL TIME MONITORING AND ANALYSIS FOR SAFE CONSTRUCTION OF DOUBLE -ARCH HIGHWAY TUNNEL IN SOFT AND WEAK SURROUNDING ROCK MASS |
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| LAI Jinxing,XIE Yongli,LI Hua,ZHAO Yanfeng.REAL TIME MONITORING AND ANALYSIS FOR SAFE CONSTRUCTION OF DOUBLE -ARCH HIGHWAY TUNNEL IN SOFT AND WEAK SURROUNDING ROCK MASS[J].Journal of Engineering Geology,2006,14(4):513-517. |
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| Authors: | LAI Jinxing XIE Yongli LI Hua ZHAO Yanfeng |
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| Institution: | 1.Key Laboratory for Bridge and Tunnel of Shaanxi Province,Chang′an University,Xi′an 710064;2.School of Science,Xi′an University of Architecture and Technology,Xi′an 710055;3.Institute for Industry Design and Research of Zhejiang Province,Hangzhou 310003 |
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| Abstract: | Considering the characteristics of Hujiaba double-arch highway tunnel constructed with three pilot tunnels excavated in advance and its large excavation width and shallow buried depth,safety construction measures were put forward such as the grouting from the ground surface,excavating by manpower in the upper bench and blasting in lower bench,blasting with small detonation dose,timely installation of the inverts,and so on.The field monitoring works focused on the following three items:(1) the displacement of surrounding rock;such as crown settlement,displacement of the ground,displacement of inner surrounding rock;(2) the stress and stain of support structure;(3) the internal force in the mid-partition wall.During construction,monitoring data was analyzed in time.Structural material parameters were analyzed backward and modified in response to the monitoring data in order to guarantee safety construction.The engineering practice has proved the applicability and feasibility of the safety monitoring and informationization construction methods. |
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| Keywords: | Soft and weak surrounding rock Multi-arch highway tunnel Safety construction technology Field monitoring |
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