兰渝铁路熊洞湾隧道信息化施工研究
发布时间：2018-09-11 13:33
【摘要】：在我国,随着偏远山区铁路交通的大力发展,铁路隧道在整个山区交通中的重要性日益凸显。伴随着长隧道的日益增加,隧道施工也成为一个炙手可热的话题。在新奥法没有出现很长一段时间,隧道工程施工中技术人员只能凭借工程中累积的经验。由于地质条件的复杂性,隧道环境在未开挖前是具有不可预见性的,因此,这种仅靠经验指导施工的方法具有一定的盲目性。新奥法的出现是隧道施工方法的一次飞跃,是隧道施工进入了动态化时代。 信息化施工是通过收集周边围岩以及掌子面前方未开挖围岩的动态信息,从而动态的指导隧道施工的一种方法。信息化施工是为了减少隧道风险而形成的一套系统、详细的监测计划,对隧道施工具有指导意义。 本文以兰渝铁路熊洞湾隧道为研究背景,通过进行超前地质预报、现场监控量测以及数值模拟分析对隧道信息化施工进行了深入的分析,主要包括以下内容： 1.本文介绍了超前地质预报的方法和技术要求,对进口段隧道运用TSP进行超前地质预报,并对预报结果进行分析、处理。 2.介绍了监控量测的内容、监控量测的方法以及监控量测数据的分析技术。对现场量测的地表沉降、拱顶下沉、周边收敛数据进行整理和回归分析,得出了围岩拱顶下沉和周边收敛的变形规律,判断围岩的稳定性以及支护结构的工作状态。 3.通过数值模拟得到围岩变形规律,将模拟的结果与现场实测数据进行对比,分析测点布置的准确性。根据数值模拟的锚杆应力及衬砌结构应力来指导后续开挖支护结构的设计参数及时修改不合理的支护结构。
[Abstract]:In China, with the development of railway traffic in remote mountainous areas, the importance of railway tunnel in the whole mountain area traffic is becoming increasingly prominent. With the increasing number of long tunnels, tunnel construction has become a hot topic. Not for a long time, technicians in tunnel construction can only rely on the accumulated experience in the project. Due to the complexity of geological conditions, the tunnel environment is unpredictable before excavation, so the method of guiding construction only by experience has certain blindness. The appearance of the new Olympic method is a leap in the tunnel construction method, and the tunnel construction has entered a dynamic era. Information construction is a method to dynamically guide tunnel construction by collecting dynamic information of surrounding rock and unexcavated surrounding rock in front of face. The information construction is a set of system formed to reduce the tunnel risk. The detailed monitoring plan has the guiding significance to the tunnel construction. Taking Xiong Dong Bay Tunnel of Lanyu Railway as the research background, this paper makes a thorough analysis of the tunnel information construction through advanced geological prediction, on-site monitoring and measurement, and numerical simulation analysis, mainly including the following contents: 1. This paper introduces the methods and technical requirements of advanced geological prediction, uses TSP to carry out the advanced geological prediction for the entrance tunnel, and analyzes and deals with the forecast results. This paper introduces the content of monitoring measurement, the method of monitoring measurement and the analysis technology of monitoring measurement data. Based on the data of ground subsidence, dome subsidence and peripheral convergence measured in the field, the deformation law of surrounding rock vault subsidence and peripheral convergence is obtained, and the stability of surrounding rock and the working state of supporting structure are judged. 3. The deformation law of surrounding rock is obtained by numerical simulation, and the accuracy of measuring point arrangement is analyzed by comparing the simulation results with the field measured data. According to the stress of anchor rod and lining structure of numerical simulation, the design parameters of subsequent excavation support structure can be modified in time.
【学位授予单位】：安徽理工大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：U456.3;U455
本文编号：2236830
[Abstract]:In China, with the development of railway traffic in remote mountainous areas, the importance of railway tunnel in the whole mountain area traffic is becoming increasingly prominent. With the increasing number of long tunnels, tunnel construction has become a hot topic. Not for a long time, technicians in tunnel construction can only rely on the accumulated experience in the project. Due to the complexity of geological conditions, the tunnel environment is unpredictable before excavation, so the method of guiding construction only by experience has certain blindness. The appearance of the new Olympic method is a leap in the tunnel construction method, and the tunnel construction has entered a dynamic era. Information construction is a method to dynamically guide tunnel construction by collecting dynamic information of surrounding rock and unexcavated surrounding rock in front of face. The information construction is a set of system formed to reduce the tunnel risk. The detailed monitoring plan has the guiding significance to the tunnel construction. Taking Xiong Dong Bay Tunnel of Lanyu Railway as the research background, this paper makes a thorough analysis of the tunnel information construction through advanced geological prediction, on-site monitoring and measurement, and numerical simulation analysis, mainly including the following contents: 1. This paper introduces the methods and technical requirements of advanced geological prediction, uses TSP to carry out the advanced geological prediction for the entrance tunnel, and analyzes and deals with the forecast results. This paper introduces the content of monitoring measurement, the method of monitoring measurement and the analysis technology of monitoring measurement data. Based on the data of ground subsidence, dome subsidence and peripheral convergence measured in the field, the deformation law of surrounding rock vault subsidence and peripheral convergence is obtained, and the stability of surrounding rock and the working state of supporting structure are judged. 3. The deformation law of surrounding rock is obtained by numerical simulation, and the accuracy of measuring point arrangement is analyzed by comparing the simulation results with the field measured data. According to the stress of anchor rod and lining structure of numerical simulation, the design parameters of subsequent excavation support structure can be modified in time.
【学位授予单位】：安徽理工大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：U456.3;U455
【参考文献】
相关期刊论文 前10条
1 冯文祥;;公路隧道施工中的变形测量方法探讨[J];测绘技术装备;2010年04期
2 罗寿斌;;多参数曲线拟合模型在隧道监控数据处理中的应用[J];贵州大学学报(自然科学版);2010年02期
3 孙国隆;张立民;;隧道工程施工各环节测量新理念[J];吉林交通科技;2007年03期
4 朱汉华;杨建辉;尚岳全;;隧道新奥法原理与发展[J];隧道建设;2008年01期
5 薛翊国;李术才;张庆松;李树忱;苏茂鑫;刘钦;;隧道信息化施工地质灾害预警预报技术研究[J];山东大学学报(工学版);2008年05期
6 邓勇;;我国长大隧道施工发展趋势探讨[J];铁道建筑技术;2009年11期
7 杨会军;王梦恕;;隧道围岩变形影响因素分析[J];铁道学报;2006年03期
8 曲海锋;刘志刚;朱合华;;隧道信息化施工中综合超前地质预报技术[J];岩石力学与工程学报;2006年06期
9 魏广庆;施斌;胡盛;李科;殷建华;;FBG在隧道施工监测中的应用及关键问题探讨[J];岩土工程学报;2009年04期
10 薛翊国;李术才;张庆松;李树忱;苏茂鑫;刘斌;刘钦;;隧道信息化施工岩溶裂隙水超前地质预报[J];岩土力学;2008年12期
，本文编号：2236830
本文链接：https://www.wllwen.com/kejilunwen/jiaotonggongchenglunwen/2236830.html
