高速公路隧道安全施工关键技术研究

发布时间：2018-05-30 07:41

本文选题：高速公路 + 隧道　；参考：《河北工业大学》2014年硕士论文

【摘要】：近二十多年来，我国高等级公路的建设十分迅速。公路隧道作为公路路线的基本组成部分，与公路建设同步发展。大量长大公路隧道和隧道的建设，既可以缩短行车的距离，又能提高提高行车速度，发展地方经济，取得良好的社会及经济效益，但隧道工程由于地质构造的复杂性以及工作面狭小，不可预见性因素多，各种危险有害因素相交织等特点，其施工的事故率比其他工程要严重得多。本文以张涿高速公路隧道工程为背景开展研究工作，深入调查国内隧道施工实践，再借鉴国外经验，总结隧道工程安全事故的主要因素和施工安全措施。通过对东马各庄隧道、西马各庄隧道和南峪隧道Ⅴ级围岩浅埋段施工过程数值模拟，研究隧道施工方法，，施工顺序及施工布距对围岩支护或衬砌的影响，以期确定工法的合理性，用于指导现场施工。分析表明随着石质路基模量的增大，层间剪应力、拉应力都随之增大，但增大的幅值较小，而弯沉值减小，且减小的幅值较大。通过对大量监控量测数据进行分析，并结合现有隧道塌方监测和预警方面的国内外成果，对现有的国内外隧道洞室稳定控制指标种类进行了归类，并结合张涿高速公路隧道，制定了该项目的预警建议标准。
[Abstract]:In the past twenty years, the construction of high-grade highway in our country is very fast. As a basic part of highway route, highway tunnel develops synchronously with highway construction. The construction of a large number of long and long highway tunnels and tunnels can not only shorten the driving distance, but also increase the driving speed, develop the local economy, and achieve good social and economic benefits. However, due to the complexity of geological structure and the narrow working face, many unpredictable factors and intertwined dangerous and harmful factors, the accident rate of tunnel construction is much more serious than that of other projects. Based on the Zhangzhuo expressway tunnel project, this paper makes a thorough investigation of the domestic tunnel construction practice, and then summarizes the main factors and construction safety measures of the tunnel engineering safety accident based on the experience of foreign countries. Through numerical simulation of the construction process of grade V surrounding rock shallow section of Dongma Gezhuang Tunnel, Xima Gezhuang Tunnel and Nanyu Tunnel, the influence of tunnel construction method, construction sequence and construction spacing on surrounding rock support or lining is studied. In order to determine the rationality of the construction method, used to guide the site construction. The analysis shows that with the increase of the modulus of the stone subgrade, the interlayer shear stress and tensile stress increase, but the amplitude of the increase is smaller, the deflection value decreases, and the decreasing amplitude is larger. By analyzing a large number of monitoring and measuring data and combining with the domestic and foreign achievements in monitoring and early warning of tunnel collapse, this paper classifies the existing categories of stability control indexes of tunnel caverns at home and abroad, and combines with the tunnel of Zhangzhuo Expressway. A standard for early warning recommendations for the project has been developed.
【学位授予单位】：河北工业大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：U455.4

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