隧道监控量测技术的现场应用 毕业设计论文.doc

隧道监控量测技术的现场应用 摘 要：由于隧道工程的特殊性、复杂性和隧道围岩的不确定性，对隧道围岩及支护结构等结构进行监控量测是保证隧道工程质量、安全的必不可少的手段。通过量测，及时对隧道个别围岩失稳趋势的区段提供了预报，为施工单位及时调整支护参数以及合理确定二次衬砌时间提供了可靠的科学依据。通过大量量测发现隧道开挖及初期支护后大约30d围岩基本上稳定，于是建议施工单位及时施作二次衬砌。同时由于监控措施得当，及时的指导施工和修改设计，从而保证了隧道施工的安全、经济、收到了良好的效果。 关 键 词 ：隧道工程；特殊性；监控量测；质量；手段 Tunnel MonitoringAbstract: Because of the particularity of the tunnel project, complexity and uncertainty surrounding the tunnel, the tunnel structure surrounding and supporting monitoring and measuring the structure of the tunnel project to ensure quality and safety of essential means. By measured, in particular to the tunnel in the section on the forecast for the construction units to adjust the parameter of the city and properly identify the second time to provide sound scientific reason. through a tunnel excavation and measured out of the city about 30d basically stable, and the proposed construction units to apply for a second . Key words: Tunnel Construction;Specificity; Monitoring; Quality; Means 目 录 1 绪 论 1.1、全新的隧道施工概念···············································2 1.2、检测依据及目的···················································3 2 隧道施工监控量测内容 2.1监控量测要求·······················································3 2.2监控量测项目·······················································4 2.3监控量测频率·······················································4 2.4监控量测的注意事项················································5 3 监控量测点布设要求 3.1布点原则··························································5 3.2测点埋设时间·····················································5 4 必测项目的监控量测方法 4.1隧道现场调查························································6 4.2 洞内围岩观察························································7 4.3周边位移监测························································9 4.4 拱顶下沉监测·······················································11 4.5 部分选测项目的监控检测···········································13 4.6 非接触测量························································16 5 监控量测数据的应用 5.1监控量测控制基准·······