Calculation Methods for Supporting Load of Highway Tunnels in Permafrost Regions

HAN Chang-ling, YAO Hong-zhi, DONG Chang-song

China Journal of Highway and Transport ›› 2015, Vol. 28 ›› Issue (12) : 114-119.

PDF Full Text Download(515 KB)
PDF Full Text Download(515 KB)
China Journal of Highway and Transport ›› 2015, Vol. 28 ›› Issue (12) : 114-119.

Calculation Methods for Supporting Load of Highway Tunnels in Permafrost Regions

  • HAN Chang-ling, YAO Hong-zhi, DONG Chang-song
Author information +
History +

Abstract

To clarify the supporting load and provide a scientific basis for structure design of highway tunnels in permafrost regions, the calculation methods for frost heave load and combination type of supporting load were researched. The analytical solution for frost heave load of a circular tunnel under the condition of non-uniform frost heave was derived using the non-uniform frost heave characteristic. The influences of the nature of surrounding rock, buried depth, lining form on the frost heave load were disclosed by the finite element analysis method. The envelope diagram of frost heave load was simplified and disintegrated. Simplified calculation formula of frost heave load on the curved wall lining was fitted. Characteristic parameters of load distribution and values were given. The combination type of supporting load around highway tunnel in permafrost regions was concluded. The results show that when the measured values of frost heave load are 0.8, 1.03 MPa, the calculation values of analytical formula are 0.62, 1.12 MPa, which agree well with the measured values, The average relative error between simplified calculation and the numerical calculation about frost heave load is 5.13%, which can meet the precision requirement of engineering application.

Key words

tunnel engineering / supporting load / numerical analysis / analytical solution / permafrost

Cite this article

Download Citations
HAN Chang-ling, YAO Hong-zhi, DONG Chang-song. Calculation Methods for Supporting Load of Highway Tunnels in Permafrost Regions[J]. China Journal of Highway and Transport, 2015, 28(12): 114-119

References

[1] 吴紫汪,赖远明,藏恩穆,等.寒区隧道工程[M].北京:海洋出版社,2003. WU Zi-wang,LAI Yuan-ming,ZANG En-mu,et al.Tunnel Engineering in Cold Regions[M].Beijing:China Ocean Press,2003.
[2] 孙文昊.寒区特长公路隧道抗防冻对策研究[D].成都:西南交通大学,2005. SUN Wen-hao.Study on Frost Resisting and Antifreezing Strategies of Extra-long Highway Tunnel in Cold Area[D].Chengdu:Southwest Jiaotong University,2005.
[3] 田俊峰,杨更社,刘 慧.寒区岩石隧道冻害机制及防治研究[J].地下空间与工程学报,2007,3(8):4484-4489. TIAN Jun-feng,YANG Geng-she,LIU Hui.Study on the Freezing Damage Mechanism and Its Prevention in Cold Region Rock Tunnel[J].Chinese Journal of Underground Space and Engineering,2007,3(8):4484-4489.
[4] 赖远明,吴紫汪,朱元林,等.寒区隧道冻胀力的黏弹性解析解[J].铁道学报,1999,21(6):70-74. LAI Yuan-ming,WU Zi-wang,ZHU Yuan-lin,et al.Analytical Viscoelastic Solution for Frost Force of Cold Regional Tunnels[J].Journal of China Railway Society,1999,21(6):70-74.
[5] 王建宇,胡元芳.隧道衬砌冻胀压力问题研究[J].冰川冻土,2004,26(1):112-119. WANG Jian-yu,HU Yuan-fang.A Discussion on Frost-heaving Force on Tunnel Lining[J].Journal of Glaciology and Geocryology,2004,26(1):112-119.
[6] 张祉道,王 联.高海拔及严寒地区隧道防冻设计探讨[J].现代隧道技术,2004,41(3):1-6. ZHANG Zhi-dao,WANG Lian.Discussion on the Design of Tunnels in High Elevation and Bitter Cold Region[J].Modern Tunnelling Technology,2004,41(3):1-6.
[7] GAO G Y,CHEN Q S,ZHANG Q S,et al.Analytical Elasto-plastic Solution for Stress and Plastic Zone of Surrounding Rock in Cold Region Tunnels[J].Cold Regions Science and Technology,2012,72:50-57.
[8] 张俊儒,仇文革.昆仑山隧道冻胀力现场测试及其数据分析[J].岩土力学,2006,27(增):564-568. ZHANG Jun-ru,QIU Wen-ge.In-situ Test and Data Analysis of Frost-heave Force of Kunlun Mountain Tunnel[J].Rock and Soil Mechanics,2006,27(S):564-568.
[9] 杨国柱.青藏铁路昆仑山隧道防冻胀结构研究[J].隧道建设,2008,28(3):263-267. YANG Guo-zhu.Case Study on Anti-frost-heaving Structure of Kunlunshan Tunnel on Qinghai-Tibet Railway[J].Tunnel Construction,2008,28(3):263-267.
[10] NAKAMURA D,GOTO T,ITO Y,et al.A Basic Study on Frost Susceptibility of Rock:Differences Between Frost Susceptibility of Rock and Soil[C]//ASCE.Proceedings of 14th Conference on Cold Regions Engineering.Reston:ASCE,2009:89-98.
[11] 徐光苗.寒区岩体低温冻融损伤力学特性及多场耦合研究[D].北京:中国科学院研究生院,2006. XU Guang-miao.Study on Mechanical Characteristics of Rock at Low Temperature Due to Freezing and Thawing and Multiphysical Coupling Problems of Rock in Cold Regions[D].Beijing:Graduate School of Chinese Academy of Sciences,2006.
[12] 康永水,刘泉声,赵 军,等.岩石冻胀变形特征及寒区隧道冻胀变形模拟[J].岩石力学与工程学报,2012,31(12):2518-2526. KANG Yong-shui,LIU Quan-sheng,ZHAO Jun,et al.Research on Frost Deformation Characteristics of Rock and Simulation of Tunnel Frost Deformation in Cold Region[J].Chinese Journal of Rock Mechanics and Engineering,2012,31(12):2518-2526.
[13] 童长江,管枫年.土的冻胀与建筑物冻害防治[M].北京:水利电力出版社,1985. TONG Chang-jiang,GUAN Feng-nian.Frost Heave of Soil and the Preventive Measure of Frost Damage of Construction[M].Beijing:Water & Power Press,1985.
[14] 贾晓云,李文江,朱永全.高原冻岩隧道施工中融化圈深度对围岩稳定性的影响分析[J].岩石力学与工程学报,2005,24(增2):5693-5697. JIA Xiao-yun,LI Wen-jiang,ZHU Yong-quan.Analysis of Stability for Surrounding Rock Caused by Depth of Thawing Range During Plateau Permafrost Tunnel Construction[J].Chinese Journal of Rock Mechanics and Engineering,2005,24(S2):5693-5697.
PDF Full Text Download(515 KB)

1513

Accesses

0

Citation

Detail

Sections
Recommended

/