Abstract
The vibrations of existing service tunnels induced by blast-excavation of adjacent tunnels have attracted much attention from both academics and engineers during recent decades in China. The blasting vibration velocity (BVV) is the most widely used controlling index for in situ monitoring and safety assessment of existing lining structures. Although numerous in situ tests and simulations had been carried out to investigate blast-induced vibrations of existing tunnels due to excavation of new tunnels (mostly by bench excavation method), research on the overall dynamical response of existing service tunnels in terms of not only BVV but also stress/strain seemed limited for new tunnels excavated by the full-section blasting method. In this paper, the impacts of blast-induced vibrations from a new tunnel on an existing railway tunnel in Xinjiang, China were comprehensively investigated by using laboratory tests, in situ monitoring and numerical simulations. The measured data from laboratory tests and in situ monitoring were used to determine the parameters needed for numerical simulations, and were compared with the calculated results. Based on the results from in situ monitoring and numerical simulations, which were consistent with each other, the original blasting design and corresponding parameters were adjusted to reduce the maximum BVV, which proved to be effective and safe. The effect of both the static stress before blasting vibrations and the dynamic stress induced by blasting on the total stresses in the existing tunnel lining is also discussed. The methods and related results presented could be applied in projects with similar ground and distance between old and new tunnels if the new tunnel is to be excavated by the full-section blasting method.
Similar content being viewed by others
Abbreviations
- BVV:
-
Blasting vibration velocity, cm/s
- σ cc :
-
Equivalent comprehensive strength of concrete, MPa
- R c :
-
Uniaxial comprehensive strength of rock, MPa
- K v :
-
Index of intactness of rock mass
- V pm :
-
Longitudinal wave velocities of rock mass in field
- V pr :
-
Longitudinal wave velocities of intact rock sample
- σ p :
-
Normal stress at the given point induced by stress wave, MPa
- ρ :
-
Mass density, kg/m3
- γ m :
-
Unit weight, kN/m3
- C p :
-
Longitudinal wave velocities, m/s
- V :
-
Particle vibration velocity, m/s
- ε :
-
Uniaxial strain at given point
- E :
-
Young’s modulus (GPa)
- ξ :
-
Constant of media, s/m
- \( \underset{\raise0.3em\hbox{$\smash{\scriptscriptstyle-}$}}{M} \) :
-
Total mass matrix
- \( \underset{\raise0.3em\hbox{$\smash{\scriptscriptstyle-}$}}{C} \) :
-
Total damping matrix
- \( \underset{\raise0.3em\hbox{$\smash{\scriptscriptstyle-}$}}{K} \) :
-
Total stiffness matrix
- \( \underset{\raise0.3em\hbox{$\smash{\scriptscriptstyle-}$}}{F}_{t + \Updelta t} \) :
-
External load matrix, i.e. blasting force matrix at t + Δt
- \( \underset{\raise0.3em\hbox{$\smash{\scriptscriptstyle-}$}}{\ddot{u}}_{t + \Updelta t} \) :
-
Nodal acceleration of system at t + Δt
- \( \underset{\raise0.3em\hbox{$\smash{\scriptscriptstyle-}$}}{\dot{u}}_{t + \Updelta t} \) :
-
Velocity of system at t + Δt
- \( \underset{\raise0.3em\hbox{$\smash{\scriptscriptstyle-}$}}{u}_{t + \Updelta t} \) :
-
Displacement of system at t + Δt
- δ, γ :
-
Integration constants
- Δt :
-
Integration time step
- T max :
-
Maximum period of system calculated through mode analysis
- α, β :
-
Damping constants
- ω i , ω j :
-
Different vibration frequencies of the system
- ξ i , ξ j :
-
Damping ratio corresponding to ω i and ω j
- P max :
-
Peak stress of blasting pulse, MPa
- Z :
-
Scaled distance, m/kg1/3
- R :
-
Distance between explosive centre and observation point, m
- Q :
-
Explosive charge detonated at the same time, kg
- t R :
-
Increasing time of triangle load, s
- t S :
-
Total time of triangle load, s
- K :
-
Volume compressive modulus of ground, 105 kPa
- µ :
-
Poisson’s ratio of ground
- a :
-
Radius of borehole, m
- \( \overline{r} \) :
-
Acting radius of blasting load, m
- E d :
-
Dynamic Young’s modulus for rock mass, GPa
- E s :
-
Static Young’s modulus for rock mass, GPa
- \( \mu_{\text{d}} \) :
-
Dynamic Poisson’s ratio for rock mass
- µ s :
-
Static Poisson’s ratio for rock mass
- c :
-
Cohesion, MPa
- φ :
-
Internal friction angle, degrees
References
Berta G (1994) Blasting-induced vibration in tunnelling. Tunn Undergr Space Technol 9:175–187
Bi J, Zhong J (2004) Study on influence of blasting vibration from excavation of a new tunnel on existing tunnel. Eng Bl 10(4):69–73 (in Chinese, with abstract in English)
Bian K, Liu D, Jia J (1988) Investigation and analysis of effect of engineering blasting on railway tunnel failure. In: Feng S (ed) Colloquium on engineering blasting. Metallurgical Industry Press, Beijing, pp 199–205 (in Chinese)
Chen D, Xu S (2009) Tunnel blasting adjacent to existing tunnel and safety technology. International Conference on Transportation Engineering, pp 3748–3753
Chengdu VIDTS Dynamic Instrument Co, Ltd, 2008. http://www.vidts.com
Dai J (2002) Dynamical properties of rock and blasting theory. Metallurgical Industry Press, Beijing, pp 147–149 (in Chinese)
Dhawan KR, Singh DN, Gupta ID (2004) Dynamic analysis of underground openings. Rock Mech Rock Eng 37(4):299–315
Ding H, Zheng Z (2002) Source model for blasting vibration. Sci China (Series E) 45(4):395–407
Fu H (2006) Blasting design and construction of long distance with little space tunnel. Eng Bl 12(3):30–32 p. 39 (in Chinese, with abstract in English)
Geng N, Hao J, Li J et al (1990) Comparative research by tests on dynamical Young’s modulus of some rocks. In: Proceedings of 2nd rock dynamics, Wuhan Surveying and Mapping Technical University Publishing House, Wuhan, pp 50–54 (in Chinese)
Guo H (2006) Blasting vibration monitoring and control technology applied in construction of Huaishuping Tunnel. Tunnel Constr 26(5):47–49, 78 (in Chinese, with abstract in English)
Hao H, Wu C, Zhou Y (2002) Numerical analysis of blast-induced stress waves in a rock mass with anisotropic continuum damage models part 1: equivalent material property approach. Rock Mech Rock Eng 35(2):79–94
Industrial Standards of People’s Republic of China (2005) Code for design on tunnel of railway (TB10003-2005). China Railway Publishing House, Beijing, pp 18–22
Li S (1998) Some experience on tunnel blasting construction with small clear spacing. Railw Constr Technol 6(4):26–28 (in Chinese, with abstract in English)
Li H, Zhao J, Li J et al (2001) Experimental and theoretical study on dynamic compressive mechanical properties of a granite. J Liaoning Tech Univ (Natural Science) 20(4):474–477 (in Chinese, with abstract in English)
Li Y, Ai C, Han C et al (2007) Study on dynamics effect caused by blasting construction by numerical simulation for tunnels with small spacing. Explos Shock Waves 27(1):75–81 (in Chinese, with abstract in English)
Li L, Li S, Zhang Q et al (2008) Analysis of dynamic response on blasting excavation of close-spaced tunnel. J Highw Transp Res Dev 25(7):100–106 (in Chinese, with abstract in English)
Liang Q, An Y, Zhao L et al (2011) Comparative study on calculation methods of blasting vibration velocity. Rock Mech Rock Eng 44:93–101
Liao Z (1992) Essential knowledge on wave theory and its preliminary application to earthquake engineering (continued). South China J Seismol 12(4):77–84 (in Chinese, with abstract in English)
Liu H (1999) Study progress of influence of nearby blasting on a tunnel. Blasting 16(1):57–63 (in Chinese, with abstract in English)
Liu Y, Chen J (2008) Monitoring and analysis of blasting vibration in Daxuanling Tunnel with small clear space. Blasting 25(2):92–94 (in Chinese, with abstract in English)
Liu Y, Gao W (2001) Numerical simulations on rock damage under explosion loading. Chin J Rock Mech Eng 20(6):789–792 (in Chinese, with abstract in English)
Liu G, Wang Z (2004) Dynamic response and blast-resistance analysis of a tunnel subjected to blast loading. J Zhejiang Univ (Engineering Science) 38(2):204–209 (in Chinese, with abstract in English)
Low HY, Hao H (2001) Reliability analysis of reinforced concrete slabs under explosive loading. Structural Safety 23:157–178
Meng J, Xi H (1992) Blasting test techniques. Metallurgical Industry Press, Beijing, pp 51–89 (in Chinese)
Nateghi R (2011) Prediction of ground vibration level induced by blasting at different rock units. Int J Rock Mech Min Sci 48:899–908
National Standards of the Peoples Republic of China (2011) Blasting Safety Regulations (GB6722-2011). China Standards Publishing House, Beijing, pp 41–45 (in Chinese)
Pan X, Lin G (2004) Study on the influence of blasting induced vibration from newly constructed tunnel upon the safety of existing tunnel. Sichuan Archit 24(5):112–113 (in Chinese)
Pan C, Zhang M, Wu H (1994) Numerical methods in tunnel mechanics. China Railway Publishing House, Beijing, pp 256–347 (in Chinese)
Peng D, Li Z, Yang N (2005) Vibration effect on the working tunnel induced by an adjacent blasting. Chin Railw Sci 26(4):73–76 (in Chinese, with abstract in English)
Sambuelli L (2009) Theoretical derivation of a peak particle velocity–distance law for the prediction of vibrations from blasting. Rock Mech Rock Eng 42:547–556
Shen M, Chen J (2006) Rock mass mechanics. Tongji University Publishing House, Shanghai, pp 52–55 (in Chinese)
Shin J-H, Moon H-G, Chae S-E (2011) Effect of blast-induced vibration on existing tunnels in soft rocks. Tunn Undergr Space Technol 26:51–61
Sun J, Hou X (1991) Underground structures. Science Press, Beijing, pp 696–697 (in Chinese)
Tan Z, Yang X, Wang M (2003) Effect of blast in doubleline tunnel on existing tunnel. Chin J Rock Mech Rock Eng 22(2):281–285 (in Chinese, with abstract in English)
Tripathy GR, Gupta ID (2002) Prediction of ground vibrations due to construction blasts in different types of rock. Rock Mech Rock Eng 35:195–204
Wang W (1984) Drill hole and blast. Coal Industry Publishing House, Beijing, pp 177–179 (in Chinese)
Wang S, Wu Z, Dong W (1980) Test on elastic wave of rock masses in hydropower engineering. The Institute of Geology, China Academy of Science editors, Problems on engineering geological mechanics of rock mass (3). Science Press, Beijing, pp 229–253 (in Chinese)
Wang M, Pan X, Zhang C et al (2004) Study of blasting vibration influence on close-spaced tunnel. Rock and Soil Mech 25:412–414 (in Chinese, with abstract in English)
Wu H, Liu H, Shi Y et al (2002) Analysis of the vibration reduction in tunnel contour induced by adjacent side blasting. Blasting 19(2):74–76 (in Chinese, with abstract in English)
Xiong D, Gu Y (2002) Advances in the theory and technology of rock blasting. Metall Ind Press, Beijing, pp 155–179 (in Chinese)
Yang S, Liu B (1998) Linear dynamic analysis on rock-media of old tunnel effected by blasting vibration of new tunnel with small line-clearance. Eng Bl 4(1):1–6 (in Chinese, with abstract in English)
Yang N, Liu H (2000) Vibration field at tunnel contour induced by a close-in blasting. Eng Bl 6(2):6–10 (in Chinese, with abstract in English)
Yang X, Wang M (2001) Mechanism of rock crack growth under detonation gas loading. Explos Shock Waves 21(2):111–116 (in Chinese, with abstract in English)
Yang W, Yang B (2005) Numerical analysis of explosion seismic effect. Earthq Eng Eng Vib 25(1):8–13 (in Chinese, with abstract in English)
Yang S, Zhou J, Li X (2005) Blasting vibration analysis of little-space road tunnel. Eng Bl 11(3):62–65 (in Chinese, with abstract in English)
Zhao D, Wang M (2007) Study on influence of blasting vibration on cross tunnels with small clearance. Chin J Geotech Eng 29(1):116–119 (in Chinese, with abstract in English)
Zhou W (1994) Advanced rock mechanics. Water Conservancy and Electricity Publishing House, Beijing, pp 216–222 (in Chinese)
Zhu R (1985) The critical vibration velocity for tunnels in rock under the action of blasting seismic waves. Metallurgical Industry Press, Beijing, Colloquium on engineering blasting in rock and soil, pp 285–291 (in Chinese)
Acknowledgments
This research was supported by ‘Qing Lan’ Talent Engineering Funds (QL-08-19A) from Lanzhou Jiaotong University and by the Program for Changjiang Scholars and Innovative Research Team in University (IRT1139). The support and help during in situ tests and sampling from China Railway Construction Co., Ltd., 21st Group, are also sincerely appreciated, especially Senior Engineer Yu Zhu and Dr. Shulin Tang. The authors would like to thank the anonymous reviewers for their valuable comments and suggestions to improve the quality of the paper.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Liang, Q., Li, J., Li, D. et al. Effect of Blast-Induced Vibration from New Railway Tunnel on Existing Adjacent Railway Tunnel in Xinjiang, China. Rock Mech Rock Eng 46, 19–39 (2013). https://doi.org/10.1007/s00603-012-0259-5
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s00603-012-0259-5