高等级公路隧道施工及监控技术研究

【作者】 王岚；

【导师】 赵明华； 郭时安；

【作者基本信息】 湖南大学 ， 建筑与土木工程， 2003， 硕士

【摘要】 随着我国交通建设的发展，特别是西部大开发战略的实施，公路隧道方案在山区和丘陵地区高等级公路建设中日益引起重视，不同长度、不同类型的山岭隧道大量涌现。因此，及时总结和研究山岭隧道施工和监控技术，深入探讨隧道施工中各种不良现象产生的原因，掌握已有隧道的成功经验和失败教训，才能为新建的工程提供重要的参考资料和决策依据，对经济地、高质量地建设公路隧道十分必要。 本文结合深圳坪山至西冲一级公路中的雷公山隧道工程实践情况，对隧道超前支护预加固技术和初期支护施工技术进行了深入的探讨。对山岭隧道施工中的传统矿山法和新奥法在理论体系、力学概念、设计原理、实际应用等方面进行了探讨，对比和分析了这两种方法在施工坍塌方中的处理应用，并针对不同塌方类型，深入地探讨了用新奥法的思路处理塌方的过程。在综合分析隧道围岩稳定性的基础上，对隧道施工中出现的各种不良现象进行了研究，分析了问题产生的原因，提出了预防措施及解决办法。介绍了隧道施工监控量测的过程和方法，对量测数据的处理技术与分析方法进行了研究，深入地研究了隧道围岩稳定位移的预测预报，并针对岩土工程的不确定性，在优化GM(1，1)模型的基础上，提出了用灰色Verhulst模型预测隧道围岩位移。最后扼要介绍了雷公山隧道的施工方法和过程，重点阐述了监控量测结果的分析及其在施工中的指导作用，并对施工中发生的不良现象进行了评述。更多还原

【Abstract】 As the development of traffic construction of our country, especially the implement of western development strategy, the highway tunnel plan are leading to important increasingly in the high class highway construction of the mountain and the hills. And more and more mountain tunnels with different length and different type have been built up. So, to summary and study the mountain tunnels construction and monitoring technology in time, especially have a deeper understanding of the bad situation in the tunnel construction and grasp the successful experience and failure lesson from the tunnels already built up could provide important reference details and decision basis for newly built project, and also it is necessary for building up highway tunnels economically and high qualifiedly.Combined with the examples of Leigongshan tunnel project which is from Pingshan of Shenzhen to Xichong, tunnel advance support pre-reinforcing technology and initial support construction technology are deeply discussed in this article. Traditional mining method and NATM(New Austrian Tunneling Method) in mountain tunnel construction are researched in theory system, mechanical concept, designation principle and actually use. According to contrast and analysis of the usage of these two ways in construction slide, the whole process handle slide in the way of NATM are deeply discussed to different kind of slide type. On the basis of thorough analysis tunnel surrounding rock’s stability, bad situation appear in the tunnel construction are probed into, meanwhile, the reason are analyzed and precautionary measure and the ways to solve the problem are provided. The process and methods of monitoring measurement in the course of construction are detailed the measuring data analyzed and treated are studied. Besides the forecast and calculate of tunnel surrounding rock stably displacement are deeply researched, and according to the uncertainty of geotechnical engineering, grey Verhulst Model is put forward to forecast tunnel surrounding rock displacement based on optimizing GM(1,1) Model. Finally, the special emphasis is laid upon the construction operation process of Leigongshan tunnel. Furthermore, analysis of results from monitoring measurement and its guide to construction operation is briefed. In addition, the bad situation in the construction process is commented.更多还原