分岔隧道大拱段围岩稳定性监控与爆破振动效应分析
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摘要
分岔隧道是一种新型的隧道结构形式,其设计方案、开挖支护方法对围岩稳定性至关重要。以沪蓉西高速公路庙垭隧道为工程背景,基于大拱段跨度大、浅埋等工程特点,通过围岩变形监测、支护体系受力监测和爆破振动现场监测,分析分岔隧道大拱段围岩变形特点和控制措施,并探讨爆破振动对浅埋地表稳定性的影响,得到浅埋大拱隧道施工开挖的围岩变形规律、支护体系受力状态以及其爆破振动效应的特点,判定浅埋山体的稳定性及支护参数选取的合理性。该研究为分岔隧道的现场施工提供了必要的依据,对今后类似工程的设计和施工具有重要的参考价值。
Bifurcated tunnel is one of the new type tunnelst,he excavation way and support style are key factors to the rock stability.A case study of Miaoya bifurcated tunnel is given;based on the character of large-span shallow part of bifurcated structure,the contents,technique,and method of monitoring in large-span shallow section are presented.Based on the measured data,such as the ground settlementr,ock deformation,bolt axial force,concrete ling stress and so on,the deformation and stress properties of surrounding rocks and supporting system are analyzed;in addition to the blasting dynamic characteristics of ground vibration for the serious blasting damage of shallow ground vibration,the in-time information is applied to guide tunnel construction and optimize the supporting system,and monitoring results are discussed in detail.The study provides indispensable evidence for the design and construction of the bifurcated tunnel.
Bifurcated tunnel is one of the new type tunnelst,he excavation way and support style are key factors to the rock stability.A case study of Miaoya bifurcated tunnel is given;based on the character of large-span shallow part of bifurcated structure,the contents,technique,and method of monitoring in large-span shallow section are presented.Based on the measured data,such as the ground settlementr,ock deformation,bolt axial force,concrete ling stress and so on,the deformation and stress properties of surrounding rocks and supporting system are analyzed;in addition to the blasting dynamic characteristics of ground vibration for the serious blasting damage of shallow ground vibration,the in-time information is applied to guide tunnel construction and optimize the supporting system,and monitoring results are discussed in detail.The study provides indispensable evidence for the design and construction of the bifurcated tunnel.
引文
[1]中华人民共和国行业标准编写组.JTGD70–2004公路隧道设计规范[S].北京:人民交通出版社,2004.(The Professional Standards Compilation Group of People′s Republic of China.JTGD70–2004 Design specifications for highway tunnel[S].Beijing:China Communications Press,2004.(in Chinese))
[2]崔茂玉.公路隧道三维动态信息监控与施工力学分析研究[博士学位论文][D].上海:同济大学,2000.(CUI Maoyu.Three-dimensional information monitoring and construction mechanical analysis of road tunnel[Ph.D.Thesis][D].Shanghai:Tongji University,2000.(in Chinese))
[3]卢耀宗,杨文武.莲花山大跨度连拱隧道施工方法研究[J].中国公路学报,2001,14(2):75–77.(LU Yaozong,YANG Wenwu.Research on construction scheme of Lianhuashan double-arch rock tunnel[J].China Journal of Highway and Transport,2001,14(2):75–77.(in Chinese))
[4]夏才初,龚建伍,唐颖,等.大断面小净距公路隧道现场监测分析研究[J].岩石力学与工程学报,2007,26(1):45–50.(XIA Caichu,GONG Jianwu,TANG Ying,et al.Study on site monitoring of large-section highway tunnels with small clear spacing[J].Chinese Journal of Rock Mechanics and Engineering,2007,26(1):45–50.(in Chinese))
[5]李二兵,王镝,王源,等.城市复杂条件下浅埋大跨度双连拱隧道的施工变形监测与控制[J].岩石力学与工程学报,2007,26(4):833–839.(LI Erbing,WANG Di,WANG Yuan,et al.Monitoring and control of construction deformation of urban shallow-buried large-span double-arched tunnel[J].Chinese Journal of Rock Mechanics and Engineering,2007,26(4):833–839.(in Chinese))
[6]张继春,曹孝君,郑爽英,等.浅埋隧道掘进爆破的地表震动效应试验研究[J].岩石力学与工程学报,2005,24(22):4 158–4 163.(ZHANG Jichun,CAO Xiaojun,ZHENG Shuangying,et al.Experimental study on vibration effects of ground due to shallow tunnel blasting[J].Chinese Journal of Rock Mechanics and Engineering,2005,24(22):4 158–4 163.(in Chinese))
[7]霍卫华.软岩大跨隧道施工力学研究[J].河北理工学院学报,2004,26(4):96–100.(HUO Weihua.Mechanical analysis and its application to large-span tunnel construction in weak rocks[J].Journal of Hebei Institute of Technology,2004,26(4):96–100.(in Chinese))
[8]刘新荣,孙辉,陈晓江,等.黄土连拱隧道二次衬砌的结构分析与监测研究[J].岩土工程学报,2005,27(6):695–697.(LIU Xinrong,SUN Hui,CHEN Xiaojiang,et al.Structural analysis and monitoring for secondary lining of double-arched tunnel in loess[J].Chinese Journal of Geotechnical Engineering,2005,27(6):695–697.(in Chinese))
[9]袁勇,王胜辉,杜国平,等.双连拱隧道支护体系现场监测试验研究[J].岩石力学与工程学报,2005,24(3):480–484.(YUAN Yong,WANG Shenghui,DU Guoping,et al.In-situ testing study on lining system of double-arched tunnel[J].Chinese Journal of Rock Mechanics and Engineering,2005,24(3):480–484.(in Chinese))
[10]王立忠,胡亚元,王百林,等.崩塌松散围岩隧道施工稳定分析与监控[J].岩石力学与工程学报,2003,22(4):589–595.(WANG Lizhong,HU Yayuan,WANG Bailin,et al.Stability analysis and monitoring for tunnel in loose soils during construction[J].Chinese Journal of Rock Mechanics and Engineering,2003,22(4):589–595.(in Chinese))
[11]姚显春,李宁,陈蕴生.隧洞中全长黏结式锚杆的受力分析[J].岩石力学与工程学报,2005,24(13):2 272–2 276.(YAO Xianchun,LI Ning,CHEN Yunsheng.Theoretical solution for shear stresses on interface of fully grouted bolt in tunnels[J].Chinese Journal of Rock Mechanics and Engineering,2005,24(13):2 272–2 276.(in Chinese))
[12]赵锦桥,李廷春,崔积弘.隧道掘进爆破地震频谱特性分析[J].爆破,2005,22(2):110–115.(ZHAO Jinqiao,LI Tingchun,CUI Jihong.Seismic spectra characteristics of tunnel excavation blasting[J].Blasting,2005,22(2):110–115.(in Chinese))
[13]谢全敏,夏元友,李新平.龙滩水电站蠕变边坡的爆破振动控制研究[J].岩石力学与工程学报,2003,22(11):1 929–1 930.(XIE Quanmin,XIA Yuanyou,LI Xinping.Study on blasting vibration control of creep mass slope of Longtan Hydropower Station[J].Chinese Journal of Rock Mechanics and Engineering,2003,22(11):1 929–1 930.(in Chinese))
[14]SHARMA J.Blasting induced vibration monitoring[J].The Indian Mining and Engineering Journal,1998,37(11):36.
[15]SISKIND E D.Frequency analysis and use of response spectra for blast vibration assessments in mining[C]//Proceedings of the 22nd Annual Conference on Explosives and Blasting Technique(Volume II).New Jersey,USA:[s.n.],1996:176–183.
[2]崔茂玉.公路隧道三维动态信息监控与施工力学分析研究[博士学位论文][D].上海:同济大学,2000.(CUI Maoyu.Three-dimensional information monitoring and construction mechanical analysis of road tunnel[Ph.D.Thesis][D].Shanghai:Tongji University,2000.(in Chinese))
[3]卢耀宗,杨文武.莲花山大跨度连拱隧道施工方法研究[J].中国公路学报,2001,14(2):75–77.(LU Yaozong,YANG Wenwu.Research on construction scheme of Lianhuashan double-arch rock tunnel[J].China Journal of Highway and Transport,2001,14(2):75–77.(in Chinese))
[4]夏才初,龚建伍,唐颖,等.大断面小净距公路隧道现场监测分析研究[J].岩石力学与工程学报,2007,26(1):45–50.(XIA Caichu,GONG Jianwu,TANG Ying,et al.Study on site monitoring of large-section highway tunnels with small clear spacing[J].Chinese Journal of Rock Mechanics and Engineering,2007,26(1):45–50.(in Chinese))
[5]李二兵,王镝,王源,等.城市复杂条件下浅埋大跨度双连拱隧道的施工变形监测与控制[J].岩石力学与工程学报,2007,26(4):833–839.(LI Erbing,WANG Di,WANG Yuan,et al.Monitoring and control of construction deformation of urban shallow-buried large-span double-arched tunnel[J].Chinese Journal of Rock Mechanics and Engineering,2007,26(4):833–839.(in Chinese))
[6]张继春,曹孝君,郑爽英,等.浅埋隧道掘进爆破的地表震动效应试验研究[J].岩石力学与工程学报,2005,24(22):4 158–4 163.(ZHANG Jichun,CAO Xiaojun,ZHENG Shuangying,et al.Experimental study on vibration effects of ground due to shallow tunnel blasting[J].Chinese Journal of Rock Mechanics and Engineering,2005,24(22):4 158–4 163.(in Chinese))
[7]霍卫华.软岩大跨隧道施工力学研究[J].河北理工学院学报,2004,26(4):96–100.(HUO Weihua.Mechanical analysis and its application to large-span tunnel construction in weak rocks[J].Journal of Hebei Institute of Technology,2004,26(4):96–100.(in Chinese))
[8]刘新荣,孙辉,陈晓江,等.黄土连拱隧道二次衬砌的结构分析与监测研究[J].岩土工程学报,2005,27(6):695–697.(LIU Xinrong,SUN Hui,CHEN Xiaojiang,et al.Structural analysis and monitoring for secondary lining of double-arched tunnel in loess[J].Chinese Journal of Geotechnical Engineering,2005,27(6):695–697.(in Chinese))
[9]袁勇,王胜辉,杜国平,等.双连拱隧道支护体系现场监测试验研究[J].岩石力学与工程学报,2005,24(3):480–484.(YUAN Yong,WANG Shenghui,DU Guoping,et al.In-situ testing study on lining system of double-arched tunnel[J].Chinese Journal of Rock Mechanics and Engineering,2005,24(3):480–484.(in Chinese))
[10]王立忠,胡亚元,王百林,等.崩塌松散围岩隧道施工稳定分析与监控[J].岩石力学与工程学报,2003,22(4):589–595.(WANG Lizhong,HU Yayuan,WANG Bailin,et al.Stability analysis and monitoring for tunnel in loose soils during construction[J].Chinese Journal of Rock Mechanics and Engineering,2003,22(4):589–595.(in Chinese))
[11]姚显春,李宁,陈蕴生.隧洞中全长黏结式锚杆的受力分析[J].岩石力学与工程学报,2005,24(13):2 272–2 276.(YAO Xianchun,LI Ning,CHEN Yunsheng.Theoretical solution for shear stresses on interface of fully grouted bolt in tunnels[J].Chinese Journal of Rock Mechanics and Engineering,2005,24(13):2 272–2 276.(in Chinese))
[12]赵锦桥,李廷春,崔积弘.隧道掘进爆破地震频谱特性分析[J].爆破,2005,22(2):110–115.(ZHAO Jinqiao,LI Tingchun,CUI Jihong.Seismic spectra characteristics of tunnel excavation blasting[J].Blasting,2005,22(2):110–115.(in Chinese))
[13]谢全敏,夏元友,李新平.龙滩水电站蠕变边坡的爆破振动控制研究[J].岩石力学与工程学报,2003,22(11):1 929–1 930.(XIE Quanmin,XIA Yuanyou,LI Xinping.Study on blasting vibration control of creep mass slope of Longtan Hydropower Station[J].Chinese Journal of Rock Mechanics and Engineering,2003,22(11):1 929–1 930.(in Chinese))
[14]SHARMA J.Blasting induced vibration monitoring[J].The Indian Mining and Engineering Journal,1998,37(11):36.
[15]SISKIND E D.Frequency analysis and use of response spectra for blast vibration assessments in mining[C]//Proceedings of the 22nd Annual Conference on Explosives and Blasting Technique(Volume II).New Jersey,USA:[s.n.],1996:176–183.
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