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.
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References
Chan MP (2003) Support capacity estimation of a diversion tunnel in weak rock. Eng Geol 68(3–4):319–331
Chen LJ, Zhang YL, Ma ZY (2015) Theoretical study on the reasonable angle of anchor pin lock. J Rock Mech Eng 34(7):5
Emergency Rescue Command Center for National Production Safety (ERCCNPS) (2014) Analysis of rescue and disposal work for 3 tunnel collapse accidents. Mod Occup Saf 12:26–29
Gere JM, Goodno BJ (2012) Mechanics of materials brief edition. Nelson Education, Toronto.
Gu SC, Liu HD (2009) Application of concrete-filled steel tubular arch in subway tunnel. Railw Archit 12:56–60
Huang Y, He FS (2005) Beam, plate and shell on elastic foundation. Science Press, Beijing
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):1177–1181
Jukes SG (1983) An investigation into steel arch support characteristics of mining tunnels (Doctoral dissertation, University of Nottingham)
Li HY (2002) Small pipe grouting technology and its application in tunnel and underground engineering. Southwest Jiaotong University, Chengdu
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):3894–3902
Liu G, Long JK, Liu XQ et al (2012) Synergetic principle and application technology of roadway stability. Acta Sin 37(12):1975–1981
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):1519–1525
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):97–130
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)
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 60:114–124
Wang HT, Jia JQ (2009) Analytical approach and field monitoring for mechanical behaviors of pipe roof reinforcement. J Cent South Univ 16(5):827–834
Xia YX, Wang YD (2012) Tunnel structure mechanics calculation. China Communications Press, Beijing
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):3355–3360
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):3355–3359
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):293
Yang T (2017) Analysis of the collapse of Wusha tunnel and its countermeasures. Low Carbon World 28:231–232
Zhou SH (2005) Scaffolding principle of pipe roof method in shallow underground excavation of soft ground. Chin J Rock Mech Eng 24(14):2565–2570
Zhou WH (2015) Study on treatment method for large section, shallow buried and water rich loess tunnel collapse. Sichuan Archit 35(6):120–123
Zhou SH, Dong XP (2007) Calculation principleand application of pipe roof method. Tongji University Press, Shanghai
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):203–206
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.
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Cao, H., Peng, L., Lei, M. et al. Calculation Model of Supporting System for Tunnel Under Shallow and Weak Surrounding Rock Considering the Synergistic Effects. Geotech Geol Eng 38, 1379–1388 (2020). https://doi.org/10.1007/s10706-019-01097-4
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DOI: https://doi.org/10.1007/s10706-019-01097-4