双向八车道小净距公路隧道监控量测分析  

ANALYSIS OF MONITORING AND MEASUREMENT OF SMALL CLEAR SPACING HIGHWAY TUNNEL WITH EIGHT LANES

作　　者：蒋坤[1,2] 夏才初[1] 

机构地区：[1]同济大学岩土及地下工程教育部重点实验室,上海200092 [2]大连市政设计研究院有限责任公司,辽宁大连116001

出　　处：《岩石力学与工程学报》2010年第A02期3755-3761,共7页Chinese Journal of Rock Mechanics and Engineering

基　　金：国家自然科学基金委员会;二滩水电开发有限公司雅砻江水电开发联合研究基金资助项目(50579088)

摘　　要：为保证安全、顺利地进行隧道施工以及便于研究施工期间围岩的稳定情况,对魁岐2#隧道进行大量现场监控量测。通过分析监测数据,研究地表沉降、拱顶下沉及洞周收敛、围岩内部位移、锚杆轴力、围岩与初期支护压力的分布特征及其变化规律。研究结果可为隧道后续施工和设计方案优化调整提供依据,也可为类似条件下隧道工程的设计、施工和监测提供借鉴。In order to guarantee security when tunnel construction and study the stability of tunnel surrounding rock,some site monitoring and measurements have been performed in Kuiqi tunnel #2. Based on the analyses of measured data,the distribution characteristics and variation laws of the ground settlement,crown settlement and convergence around the tunnel,the displacement of the interior of surrounding rock,bolt axial forces and pressure of surrounding rocks and preliminary support are all studied. The study results are drawn to provide the basis for modifying and optimizing the design and construction scheme. This study will offer some useful references for the design,construction and monitoring of tunnels in the similar geological conditions.

关 键 词：隧道工程 特大断面 小净距 公路隧道 监控量测 

分 类 号：U45[建筑科学—桥梁与隧道工程]