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Calculation Model of Supporting System for Tunnel Under Shallow and Weak Surrounding Rock Considering the Synergistic Effects

  • Haorong Cao
  • Limin Peng
  • Mingfeng LeiEmail author
  • Qianlong Tang
  • Long Peng
  • Fudong Chen
Original Paper
  • 9 Downloads

Abstract

In order to give full play to the bearing capacity of the various components of a tunnel supporting system under shallow and weak surrounding rocks, a study is conducted on the synergistic mechanism of the tunnel supporting system in these conditions. In this paper, the synergistic mechanism of the tunnel supporting system is investigated by considering each function of the supporting equipment. Then, a theoretical model is proposed to calculate the overall bearing capacity of the supporting system for the tunnel under the shallow-buried weak surrounding rocks. The ultimate calculation formula for the supporting system, which includes advanced pipe roof, leading conduit, steel arch and feet-lock anchor bolt, is obtained on the basis of the structural mechanics and elastic foundation beam theory. To validate the proposed model, the interacting forces and deformation of each support structure component are calculated respectively. Next, the calculation results are compared with those of the load-structure method and strata-structure method. Statistical analysis shows that the deformations obtained by the three methods are consistent, and that the results of each method are rather similar. It indicates that the theoretical method proposed is reliable and applicable.

Keywords

Tunnel under shallow and weak surrounding rock Synergistic mechanism System model Constraint relation 

Notes

Acknowledgements

Projects funded by the National Natural Science Foundation of China (Nos. 51508575, U1734208), the Natural Science Foundation of Hunan Province, China (No. 2018JJ3657), and The Education Department Science and Technology Research Project of Jiangxi Province, China (No. GJJ171292) are gratefully acknowledged.

References

  1. Chan MP (2003) Support capacity estimation of a diversion tunnel in weak rock. Eng Geol 68(3–4):319–331Google Scholar
  2. Chen LJ, Zhang YL, Ma ZY (2015) Theoretical study on the reasonable angle of anchor pin lock. J Rock Mech Eng 34(7):5Google Scholar
  3. Emergency Rescue Command Center for National Production Safety (ERCCNPS) (2014) Analysis of rescue and disposal work for 3 tunnel collapse accidents. Mod Occup Saf 12:26–29Google Scholar
  4. Gere JM, Goodno BJ (2012) Mechanics of materials brief edition. Nelson Education, Toronto.Google Scholar
  5. Gu SC, Liu HD (2009) Application of concrete-filled steel tubular arch in subway tunnel. Railw Archit 12:56–60Google Scholar
  6. Huang Y, He FS (2005) Beam, plate and shell on elastic foundation. Science Press, BeijingGoogle Scholar
  7. Jia PJ (2016) Numerical analysis of mechanical properties of STS tube curtain members with different structural parameters. J Northeast Univ Nat Sci Ed 37(8):1177–1181Google Scholar
  8. Jukes SG (1983) An investigation into steel arch support characteristics of mining tunnels (Doctoral dissertation, University of Nottingham)Google Scholar
  9. Li HY (2002) Small pipe grouting technology and its application in tunnel and underground engineering. Southwest Jiaotong University, ChengduGoogle Scholar
  10. Li SC, Xu BS, Li SC (2005) Ling structure type of subsea tunnel and its suport parameters optimizing. Chin J Rock Mech Eng 24(21):3894–3902Google Scholar
  11. Liu G, Long JK, Liu XQ et al (2012) Synergetic principle and application technology of roadway stability. Acta Sin 37(12):1975–1981Google Scholar
  12. Luo YB, Chen JX (2013) Mechanical characteristics and mechanical calculation model of tunnel feet-lock bolt in weak surrounding rock. Chin J Geotech Eng 35(8):1519–1525Google Scholar
  13. Oke J, Vlachopoulos N, Marinos V (2013) Umbrella arch nomenclature and selection methodology for temporary support systems for the design and construction of tunnels. Geotech Geol Eng 32(1):97–130CrossRefGoogle Scholar
  14. Pasternak PL (1954) On a new method of analysis of an elastic foundation by means of two foundation constants. Gosudarsrvennoe Izdatelstvo Literaturi po Stroitelstvu i Arkhitekture: Moscow, Russia, 1954 (In Russian)Google Scholar
  15. Schumacher FP, Kim E (2013) Modeling the pipe umbrella roof support system in a Western US underground coal mine. Int J Rock Mech Min Sci 60:114–124CrossRefGoogle Scholar
  16. Wang HT, Jia JQ (2009) Analytical approach and field monitoring for mechanical behaviors of pipe roof reinforcement. J Cent South Univ 16(5):827–834CrossRefGoogle Scholar
  17. Xia YX, Wang YD (2012) Tunnel structure mechanics calculation. China Communications Press, BeijingGoogle Scholar
  18. Xia CC, Que CK, Liu S (2011) Internal force research and case analysis of steel curtain in jacking box culvert full section replacement pipe curtain method. Rock Mech 32(12):3355–3360Google Scholar
  19. Xiao SG, Zhu HH, Xia CC et al (2005) Analysis of the bearing capacity of the top curtain of culvert in pipe curtain. J Rock Mech Eng 24(18):3355–3359Google Scholar
  20. Xiao JZ, Dai FC, Wei YQ et al (2016) Analysis of mechanical behavior in a pipe roof during excavation of a shallow bias tunnel in loose deposits. Environ Earth Sci 75(4):293CrossRefGoogle Scholar
  21. Yang T (2017) Analysis of the collapse of Wusha tunnel and its countermeasures. Low Carbon World 28:231–232Google Scholar
  22. Zhou SH (2005) Scaffolding principle of pipe roof method in shallow underground excavation of soft ground. Chin J Rock Mech Eng 24(14):2565–2570Google Scholar
  23. Zhou WH (2015) Study on treatment method for large section, shallow buried and water rich loess tunnel collapse. Sichuan Archit 35(6):120–123Google Scholar
  24. Zhou SH, Dong XP (2007) Calculation principleand application of pipe roof method. Tongji University Press, ShanghaiGoogle Scholar
  25. Zuo QK, Liu TB, Meng LB, Zheng YX (2011) Numerical simulation analysis of the stress characteristics of tunnel steel arch support structure. J China Foreign Highw 31(4):203–206Google Scholar

Copyright information

© Springer Nature Switzerland AG 2019

Authors and Affiliations

  1. 1.School of Civil EngineeringCentral South UniversityChangshaChina
  2. 2.Hunan University Design Institute Co., LtdChangshaChina
  3. 3.Key Laboratory of Engineering Structure of Heavy Haul Railway (Central South University)ChangshaChina
  4. 4.Jiangxi Transportation Vocational and Technical CollegeNanchangChina
  5. 5.No. 3 Engineering Co., Ltd. of CCCC Third Harbor Engineering Co., Ltd.NanjingChina

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