高烈度地震区隧道减震模型的建立及其减震效果模型试验研究
|
摘要
现场调查表明:5.12汶川大地震共造成21条高速公路和16条国道、省道干线上总延长达20417m的24座隧道结构受损,严重影响了灾区救援和灾后重建。可见,传统的隧道抗震技术已不能保证高烈度地震区隧道结构的安全。为此,在分析隧道震害特点及原因的基础上,建立了隧道支护体系内设置减震层的减震模型,根据这一减震模型,研究了减震层刚度、地震波输入频率和减震层阻尼等参数对隧道减震效果的影响。通过三维数值模拟和室内模型试验,验证了该减震模型的减震效果。研究成果可为高烈度地震区隧道结构减震设计提供参考。
Field investigation showed that:21 expressways and 16 national and provincial roads were damaged during 5.12 Wenchuan earthquake. 24 tunnels (20 417 running meters) were damaged in this earthquake. It had seriously affected the disaster relief and post-disaster reconstruction. The traditional aseismic technology can not guarantee the safety of the tunnel structure. Therefore,by analyzing the earthquake disaster character and reason of tunnel,a damping model of setting shock absorption layer in the supporting system of tunnel is established. According to this damping model,shock absorption layer stiffness,the input of frequency of seismic and shock absorption layer damping on damping effect of tunnel are researched. Through three-dimensional numerical simulation and indoor model test,damping effect of this damping model is proved. Research results provide references for aseismic design of tunnel structure in a highly seismic area.
Field investigation showed that:21 expressways and 16 national and provincial roads were damaged during 5.12 Wenchuan earthquake. 24 tunnels (20 417 running meters) were damaged in this earthquake. It had seriously affected the disaster relief and post-disaster reconstruction. The traditional aseismic technology can not guarantee the safety of the tunnel structure. Therefore,by analyzing the earthquake disaster character and reason of tunnel,a damping model of setting shock absorption layer in the supporting system of tunnel is established. According to this damping model,shock absorption layer stiffness,the input of frequency of seismic and shock absorption layer damping on damping effect of tunnel are researched. Through three-dimensional numerical simulation and indoor model test,damping effect of this damping model is proved. Research results provide references for aseismic design of tunnel structure in a highly seismic area.
引文
[1]王明年.高地震区地下结构减震技术原理的研究[博士学位论文D].成都:西南变通大学,1999.
[2]孙铁成.双洞错距山岭隧道洞口段地震动力响应及减震措施研究[博士学位论文D].成都:西南变通大学,2009.
[3]高峰,石玉成,严松宏,等.隧道的两种减震措施研究[J].岩石力学与工程学报,2005,24(2):222-229.GAO Feng,SHI Yu-cheng,YAN Song-hong,et al.Study of two shock absorption measures in tunnel[J].Chinese Journal of Rock Mechanics and Engineering,2005,24(2):222-229.
[4]熊良宵,李天斌,杨林德.隧道两种减震措施的数值模拟研究[J].水文地质工程地质,2007,(4):36-40.XIONG Liang-xiao,LI Tian-Bin,YANG Lin-de.Study on numerical simulation of two shock absorption measures in tunnel[J].Hydrogeology and Engineering Geology,2007,(4):36-40.
[5]李利平,李术才,张庆松,等.浅埋大跨隧道施工爆破监测与减震技术[J].岩土力学,2008,29(8):2292-2296.LI Li-ping,LI Shu-cai,ZHANG Qing-song,et al.Monitoring blasting excavation of shallow-buried large-span tunnel and vibration reduction technology[J].Rock and Soil Mechanics,2008,29(8):2292-2296.
[6]索然绪,李乐洲,邓彬.双连拱隧道两种减震措施研究[J].公路隧道,2008,(4):15-18.SUO Ran-xu,LI Le-zhou,DENG Bin.Study of two shock absorption measures in double-arch tunnel[J].Highway Tunnel,2008,(4):15-18.
[7]高丽,陈燕华.基于ANSYS的隧道减震措施及分析[J].石河子大学学报(自然科学版),2008,26(4):495-498.GAO Li,CHEN Yan-hua.Analysis and shock absorption measures of tunnel based on ANSYS[J].Journal of Shihezi University(Natural Science),2008,26(4):495-498.
[8]凌燕婷,高波.高烈度地震区双线公路隧道减震措施研究[J].隧道建设,2008,28(4):412-415.LING Yan-ting,GAO Bo.Study on shock absorption measures for double-lane highway tunnels in high earthquake intensity regions[J].Tunnel Construction,2008,28(4):412-415.
[9]袁帅.浅埋隧道地震动力响应分析及减震措施研究[硕士学位论文D].武汉:武汉理工大学,2008.
[10]戴德沛.阻尼技术的工程应用[M].北京:清华大学出版社,1991.
[11]温熙森.机械系统动态分析理论与应用[M].长沙:国防科技大学出版社,1998.
[12]任和生.现代控制理论及其应用[M].北京:电子工业出版社,1992.
[13]顾瑞龙.工程控制理论[M].北京:北京科学技术出版社,1990.
[14]严济宽.机械震动隔离[M].上海:上海科学技术出版社,1985.
[15]张阿舟.震动控制工程[M].北京:航空工业出版社,1989.
[2]孙铁成.双洞错距山岭隧道洞口段地震动力响应及减震措施研究[博士学位论文D].成都:西南变通大学,2009.
[3]高峰,石玉成,严松宏,等.隧道的两种减震措施研究[J].岩石力学与工程学报,2005,24(2):222-229.GAO Feng,SHI Yu-cheng,YAN Song-hong,et al.Study of two shock absorption measures in tunnel[J].Chinese Journal of Rock Mechanics and Engineering,2005,24(2):222-229.
[4]熊良宵,李天斌,杨林德.隧道两种减震措施的数值模拟研究[J].水文地质工程地质,2007,(4):36-40.XIONG Liang-xiao,LI Tian-Bin,YANG Lin-de.Study on numerical simulation of two shock absorption measures in tunnel[J].Hydrogeology and Engineering Geology,2007,(4):36-40.
[5]李利平,李术才,张庆松,等.浅埋大跨隧道施工爆破监测与减震技术[J].岩土力学,2008,29(8):2292-2296.LI Li-ping,LI Shu-cai,ZHANG Qing-song,et al.Monitoring blasting excavation of shallow-buried large-span tunnel and vibration reduction technology[J].Rock and Soil Mechanics,2008,29(8):2292-2296.
[6]索然绪,李乐洲,邓彬.双连拱隧道两种减震措施研究[J].公路隧道,2008,(4):15-18.SUO Ran-xu,LI Le-zhou,DENG Bin.Study of two shock absorption measures in double-arch tunnel[J].Highway Tunnel,2008,(4):15-18.
[7]高丽,陈燕华.基于ANSYS的隧道减震措施及分析[J].石河子大学学报(自然科学版),2008,26(4):495-498.GAO Li,CHEN Yan-hua.Analysis and shock absorption measures of tunnel based on ANSYS[J].Journal of Shihezi University(Natural Science),2008,26(4):495-498.
[8]凌燕婷,高波.高烈度地震区双线公路隧道减震措施研究[J].隧道建设,2008,28(4):412-415.LING Yan-ting,GAO Bo.Study on shock absorption measures for double-lane highway tunnels in high earthquake intensity regions[J].Tunnel Construction,2008,28(4):412-415.
[9]袁帅.浅埋隧道地震动力响应分析及减震措施研究[硕士学位论文D].武汉:武汉理工大学,2008.
[10]戴德沛.阻尼技术的工程应用[M].北京:清华大学出版社,1991.
[11]温熙森.机械系统动态分析理论与应用[M].长沙:国防科技大学出版社,1998.
[12]任和生.现代控制理论及其应用[M].北京:电子工业出版社,1992.
[13]顾瑞龙.工程控制理论[M].北京:北京科学技术出版社,1990.
[14]严济宽.机械震动隔离[M].上海:上海科学技术出版社,1985.
[15]张阿舟.震动控制工程[M].北京:航空工业出版社,1989.
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心