Research on Seismic Measures of Double-arch Tunnel Portals in High-intensity Earthquake Zone

WANG Zheng-zheng, WANG Zheng-song, GAO Bo

China Journal of Highway and Transport ›› 2011, Vol. 24 ›› Issue (6) : 80-85.

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China Journal of Highway and Transport ›› 2011, Vol. 24 ›› Issue (6) : 80-85.
Original Article

Research on Seismic Measures of Double-arch Tunnel Portals in High-intensity Earthquake Zone

  • WANG Zheng-zheng1, WANG Zheng-song2, GAO Bo3
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Abstract

Based on the background of a double-arch tunnel which was constructed on high-intensity earthquake zone in southwestern China, two types of grout consolidation projects for tunnel portals, i.e., the whole chain alternative grouting and the whole chain touch grouting were proposed. Different types and thicknesses of grout were studied by three dimensional numerical simulation. Results show that two types of grout consolidation projects of double-arch tunnel can reduce the dynamic interaction of tunnel and surrounding rock system and improve the whole seismic performance of tunnels. The effect of the whole chain touch grouting is optimal, the effect of the whole chain alternative grouting is better and the effect of local grouting is not obvious. When thickness of whole chain touch grouting reaches 0.5 times of excavation width, the effect of grouting nearly remains unchanged. The research conclusion can provide reference for seismic design and construction of tunnels.

Key words

tunnel engineering / double-arch tunnel / three dimensional numerical simulation / seismic measure / tunnel portal / grout consolidation

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WANG Zheng-zheng, WANG Zheng-song, GAO Bo. Research on Seismic Measures of Double-arch Tunnel Portals in High-intensity Earthquake Zone[J]. China Journal of Highway and Transport, 2011, 24(6): 80-85

References

[1] HASHASH Y M A,HOOK J J,SCHMIDT B,et al.Seismic Design and Analysis of Underground Structures [J].Tunnelling and Underground Space Technology,2001,16(4):247-293.
[2]李天斌.汶川特大地震中山岭隧道变形破坏特征及影响因素分析[J].工程地质学报,2008,16(6):742-750.
LI Tian-bin.Failure Characteristics and Influence Factor Analysis of Mountain Tunnels at Epicenter Zones of Great Wenchuan Earthquake[J].Journal of En-gineering Geology,2008,16(6):742-750.
[3]WANG Zheng-zheng,GAO Bo,JIANG Yuan-jun,et al.Investigation and Assessment on Mountain Tunnels and Geotechnical Damage After the Wenchuan Earthquake[J].Science in China Series E:Technological Sciences,2009,52(2):546-558.
[4]高 波,王峥峥,袁 松,等.汶川地震公路隧道震害启示[J].西南交通大学学报,2009,44(3):336-341,374.
GAO Bo,WANG Zheng-zheng,YUAN Song,et al.Lessons Learnt from Damage of Highway Tunnels in Wenchuan Earthquake[J].Journal of Southwest Jiaotong University,2009,44(3):336-341,374.
[5]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 En-gineering,2005,24(2):222-229.
[6]黄 胜,陈卫忠,杨建平,等.地下工程地震动力响应及抗震研究[J].岩石力学与工程学报,2009,28(3):483-490.
HUANG Sheng,CHEN Wei-zhong,YANG Jian-ping,et al.Research on Earthquake-induced Dynamic Responses and Aseismic Measures for Underground Engineering[J].Chinese Journal of Rock Mechanics and Engineering,2009,28(3):483-490.
[7]潘昌实.隧道力学数值方法[M].北京:中国铁道出版社,1995.
PAN Chang-shi.Numerical Method for Tunnel Mechanics[M].Beijing:China Railway Publishing House,1995.
[8]王峥峥.跨断层隧道结构非线性地震损伤反应分析[D].成都:西南交通大学,2009.
WANG Zheng-zheng.Nonlinear Seismic Damage Response of Tunnel Structures Across Faults[D].Chengdu:Southwest Jiaotong University,2009.
[9]周荣军,何玉林.北京至昆明高速公路四川境雅安至泸沽项目地震安全性评价报告[R].成都:四川赛思特科技有限责任公司,2005.
ZHOU Rong-jun,HE Yu-lin.Seismic Safety Appraisal Report of Ya'an-Lugu Expressway for Beijing-Kunming Expressway Project[R].Chengdu:Sichuan Sast Technology Co.Ltd.,2005.
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