Browse > Article
http://dx.doi.org/10.9711/KTAJ.2013.15.6.637

Evaluation of rock load based on critical shear strain concept on tunnels  

Kim, Jung-Joo (Hanyang university)
Lee, Jae-Kook (Hanyang university)
Kim, Jong-Uk (Hanyang university)
Yoo, Han-Kyu (Hanyang university)
Publication Information
Journal of Korean Tunnelling and Underground Space Association / v.15, no.6, 2013 , pp. 637-652 More about this Journal
Abstract
After studying the characteristics of three different evaluation methods of rock load; namely theoretical method, empirical method and numerical method, there were too many limitations for them to be applied on tunnels. Therefore, in this research paper, the method based on numerical analysis is selected to use as this method is the most reasonable one since it considers all parameters that are necessary for rock load estimations, and it also considers the interaction between ground and tunnel support. The critical shear strain concept formulated by Sakurai (1981) was used in order to measure exact rock load values based on numerical analysis. Evaluation on a Level 1 rock load height, which is depicted by the stable region in the graph shows that rock load is not affecting between ground grade 1~3, and it was evaluated that the fourth and fifth grades show less values of rock load height which led to the conclusion of a more economical design of concrete lining.
Keywords
Critical strain; Critical shear strain; Rock load; Concrete lining; In-situ stress ratio;
Citations & Related Records
Times Cited By KSCI : 7  (Citation Analysis)
연도 인용수 순위
1 Sakurai, S. (1997), "Lesson learned from field measurements in tunnelling", Tunnelling and Underground Space Technology, Vol. 12, No. 4, pp. 453-460.   DOI   ScienceOn
2 Seo, S.H., Chang, S.B., Lee, S.D. (2002), "An analysis model of the secondary tunnel lining Considering ground-primary support-secondary lining interaction." J. of Korean Society for Rock Mech, Vol. 12, No 2, pp. 107-114.   과학기술학회마을
3 Shin, Y.S., Park, S.H. (2009), "Engineering interpretation of critical strains in the ground based on the tunnel engineering." J. of TUNNELLING TECHNOLOGY, Vol 11, No. 4, pp. 403-410.   과학기술학회마을
4 Terzaghi, K. (1943), Theoretical soil mechanics, John Wiley and Sons, New York, pp. 66-76.
5 The British Tunnelling Society and The Institution of Civil Engineers. (2004), Tunnel lining design guide, Thomas Telford, UK, pp. 92-95.
6 Unal, E. (1983), Design guideline and roof control standards for coal mine roofs, Ph.D. Thesis, The Pennsylvania State University.
7 Venkateswarlu, V. (1986), "Geomechanics classification of coal measure rocks vis-a-vis roof supports", Engineering Rock Mass Classification (ed. Bieniawski, Z. T.), John Wiley & Sons.
8 Yoo, K.H., Lee D.H., (2007), "The estimation of the relaxed rock mass height of a subsea tunnel under the overstressed ground conditions in coupled analysis." J. of Korean Society for Rock Mechanics, pp. 137-146.
9 Bierbaumer, A. (1913), "Die dimensionnierung des tunnelmanerwerks." pp. 101.
10 Bieniawski, Z.T. (1989), "Engineering rock mass classifications", John Wiley & Sons, pp. 162-169.
11 Chun, B.S., Shin, Y.W. (2000), "A case study on the design loads of tunnel concrete lining." Civil Expo, pp. 5-8.
12 Chun, B.S., Shin, Y.W. (2001), "A study on the design loads of NATM tunnel concrete lining." J. of Korean Society for Rock Mechanics TUNNEL & UNDERGROUND, Vol. 11, No. 2, pp. 96-108.   과학기술학회마을
13 Grimstad, E., Barton, N. (1993), "Updating the Q-system for NMT." Proc. int. symp. on sprayed concrete - modern use of wet mix sprayed concrete for underground support, Fagernes. Oslo, pp. 46-66.
14 Huh, D.H., Chang, S.B., Moon, H.K. (2008), "A study on the secondary tunnel lining design using a ground lining interaction model." J. of The Korean Society for Geosystem Engineering, Vol. 45, No. 4, pp. 370-380.   과학기술학회마을
15 Korean Tunneling Association. (2009), A manual of tunnel design criteria, CIR, Korea, pp. 145-165.
16 Kim, S.H., Park, I.J., Moon, H.K., Shin, Y.S. (2010), "A study on behavioral characteristics of concrete lining based on the equations of relaxed rock loads." J. of Korean Tunnelling and Underground Space Association, Vol. 12, No. 6, pp. 443-450.   과학기술학회마을
17 Kim, S.H., Kim, K.L., Jeong, S.S., Choi, W.I. Lee, K.J., Lee, S.W. (2012), "Estimation of the ground loads acting on concrete lining in NATM tunnel." Korean Society for Railway pp. 415-420.
18 Park, S.H. (2013), "Engineering interpretation of critical strains in the ground and a new approach to assess the tunnel stability." Proc. of Tunnelling and Underground Space Construction for Sustainable Development., Korea Tunnelling Underground Space Association, Seoul, Korea, pp. 273-276.
19 Kwa'sniewsji, M., Takahashi, M. (2010), "Strainbased failure criteria for rocks : State of the art and recent advances." Rock Mechanics in Civil Environmental Engineering. pp. 45-56.
20 Park, J.J., Kim, Y.M., Hwang, T.J., Jeong, S.S. (2011), "Numerical analysis of tunnel lining under lossening Load." J. of THE KOREAN GEOTECHNICAL SOCIETY, Vol. 27, No. 7, pp. 35-45.
21 Park, K.H., Shin, Y.W., Kim, J.J., Yoo, H.K. (2013), "A study on the estimation method of rock load applied to concrete lining using back analysis." J. of the Korean Society of Civil Engineers, Vol. 33, No. 5, pp. 1957-1968.   과학기술학회마을   DOI   ScienceOn
22 Rose, D. (1982), "Revising Terzaghi's tunnel rock load coefficient", Proc. 23rd U.S Symposium on Rock Mechanics., AIME, New york, pp. 953-960.
23 Ryu, D.H., Kim, S.C., Lee, C.J., Park, J.Y., Lim J.G., Moon, J.W. (2012), "A study on the application based on the equations of loosening loads for the optimized design of concrete lining." Korean Society for Railway, pp. 7-18.
24 Sakurai, S. (1981), "Direct strain evaluation technique in construction of underground opening", Proc. 22nd U,S, Sympo. Rock Mech., Cambridge, MIT, pp. 298-302.
25 Sakurai, S. (1982), "An evaluation technique of displacement measurements in tunnels", Journal of Geotechnical Engineering, JSCE, Vol, 317, pp 93-100.
26 Sakurai, S., I.Kawashima & T.Otani. (1995), "A criterion for assessing the stability of tunnels." Eurock'93, Ribeiro e Sousa & Grossmann(eds), pp. 969-973.