Performance of double-arch tunnels under internal BLEVE

Abstract

Double-arch tunnels, as one of the popular forms of tunnels, might be exposed to boiling liquid expanding vapour explosions (BLEVEs) associated with transported liquified petroleum gas (LPG), which could cause damage to the tunnel and even catastrophic collapse of the tunnel in extreme cases. However, very limited study has investigated the performance of double-arch tunnels when exposed to internal BLEVEs and in most analyses of tunnel responses to accidental explosions. The TNT-equivalence method was used to approximate the explosion load, which may lead to inaccurate tunnel response predictions. This study numerically investigates the response of typical double-arch tunnels to an internal BLEVE resulting from the instantaneous rupture of a 20 m³ LPG tank. Effects of various factors, including in-situ stresses, BLEVE locations, and lining configurations on tunnel responses are examined. The results show that the double-arch tunnels at their early-operation ages are more vulnerable to severe damage when exposed to the BLEVE due to the low action of in-situ stress of rock mass on the response of early-age tunnels. It is also found that directing the LPG tank to different driving lanes inside tunnels can affect the BLEVE-induced tunnel response more significantly than varying the configurations of tunnel lining. Moreover, installing section-steel arches in the mid-wall can effectively improve the blast resistance of the double-arch tunnels against the internal BLEVE. In addition, the prediction models based on multi-variate nonlinear regressions and machine learning methods are developed to predict the BLEVE-induced damage levels of the double-arch tunnels without and with section-steel arches.

Keywords

Double-arch tunnel / BLEVE / Lining configuration / Section-steel arch / Damage prediction

Data availability

The data that support the findings of this study are available from the corresponding author upon reasonable request.

CRediT authorship contribution statement

Ruishan Cheng: Conceptualization, Data curation, Formal analysis, Investigation, Methodology, Software, Visualization, Writing - original draft. Wensu Chen: Conceptualization, Project administration, Resources, Supervision, Validation, Writing - review & editing. Hong Hao: Conceptualization, Funding acquisition, Supervision, Validation, Writing - review & editing.

Declaration of competing interest

The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.

Acknowledgement

The authors acknowledge the financial support from the Australian Research Council (ARC) via Australian Laureate Fellowship (FL180100196).

References

[1] ANSTER. (2017). Fuel Tank Trailer Guide-Diesel, Petrol, Oil Tanker Trailers Designs & Specs. https://anstertrailer.com/wp-content/uploads/2017/09/Tank-trailer-guide-book.pdf.

[2] Birk, A. M., Davison, C., & Cunningham, M. (2007). Blast overpressures from medium scale BLEVE tests. Journal of Loss Prevention in the Process Industries, 20(3), 194-206.

[3] Bobet, A., & Einstein, H. H. (2011). Tunnel reinforcement with rockbolts. Tunnelling and Underground Space Technology, 26(1), 100-123.

[4] Brown, E. T., & Hoek, E. (1978). Trends in relationships between measured in-situ stresses and depth. International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts, 15(4), 211-215.

[5] Cheng, R. S., Chen, W. S., Hao, H., & Li, J. D. (2021). A state-of-the-art review of road tunnel subjected to blast loads. Tunnelling and Underground Space Technology, 112, 103911.

[6] Cheng, R. S., Chen, W. S., Hao, H., & Li, J. D. (2022a). Dynamic response of road tunnel subjected to internal Boiling liquid expansion vapour explosion (BLEVE). Tunnelling and Underground Space Technology, 123, 104363.

[7] Cheng, R. S., Chen, W. S., Hao, H., & Li, J. D. (2022b). Effect of internal explosion on tunnel secondary and adjacent structures: A review. Tunnelling and Underground Space Technology, 126, 104536.

[8] Cheng, R. S., Chen, W. S., Hao, H., & Li, J. D. (2023a). Numerical prediction of ground vibrations induced by LPG boiling liquid expansion vapour explosion (BLEVE) inside a road tunnel. Underground Space, 12, 44-64.

[9] Cheng, R. S., Chen, W. S., Hao, H., & Li, J. D. (2023b). Performance of road tunnel subjected to BLEVE occurring inside adjacent tunnel. Tunnelling and Underground Space Technology, 140, 105292.

[10] Cheng, R. S., Chen, W. S., Li, J. D., & Hao, H. (2022c). Effects of cover depth and rock type on dynamic response of road tunnels against internal explosions. International Journal of Applied Mechanics, 14(7), 2250067.

[11] Feldgun, V. R., Karinski, Y. S., & Yankelevsky, D. Z. (2014). The effect of an explosion in a tunnel on a neighboring buried structure. Tunnelling and Underground Space Technology, 44, 42-55.

[12] Goel, M. D., Verma, S., Mandal, J., & Panchal, S. (2021). Effect of blast inside tunnel on surrounding soil mass, tunnel lining, and superstructure for varying shapes of tunnels. Underground Space, 6(6), 619-635.

[13] Hao, Y. F., & Hao, H. (2014). Influence of the concrete DIF model on the numerical predictions of RC wall responses to blast loadings. Engineering Structures, 73, 24-38.

[14] Hong, Z. X., Tao, M., Cui, X. J., Wu, C. Q., & Zhao, M. S. (2023). Experimental and numerical studies of the blast-induced overbreak and underbreak in underground roadways. Underground Space, 8, 61-79.

[15] Japan Society of Civil Engineers (JSCE). (2018). Standard Specifications for Tunneling: Mountain Tunnels.

[16] Koneshwaran, S., Thambiratnam, D. P., & Gallage, C. (2018). Blast Response and Failure Analysis of a Segmented Buried Tunnel. Structural Engineering International, 25(4), 419-431.

[17] Li, J., & Hao, H. (2014). Numerical study of concrete spall damage to blast loads. International Journal of Impact Engineering, 68, 41-55.

[18] Li, J. D., Hao, H., Chen, W. S., & Cheng, R. S. (2022). Calculation of BLEVE energy and overpressures inside a tunnel using analytical and CFD methods. Tunnelling and Underground Space Technology, 120, 104263.

[19] Li, M. H., Zong, Z. H., Hao, H., Zhang, X. H., Lin, J., & Xie, G. Y. (2019). Experimental and numerical study on the behaviour of CFDST columns subjected to close-in blast loading. Engineering Structures, 185, 203-220.

[20] Li, X. B., Cao, W. Z., Tao, M., Zhou, Z. L., & Chen, Z. H. (2016). Influence of unloading disturbance on adjacent tunnels. International Journal of Rock Mechanics and Mining Sciences, 84, 10-24.

[21] Liu, K., Li, Q. Y., Wu, C. Q., Li, X. B., & Li, J. (2018). A study of cut blasting for one-step raise excavation based on numerical simulation and field blast tests. International Journal of Rock Mechanics and Mining Sciences, 109, 91-104.

[22] Malvar, L. J. (1998). Review of static and dynamic properties of steel reinforcing bars. ACI Materials Journal, 95(5), 609-616.

[23] McVay, M. K. (1988). Spall damage of concrete structures. Technical Report SL-88-22. U.S. Army Corps of Engineers, Waterways Experiment Station, Vicksburg, Mississippi.

[24] Meng, Q. F., Wu, C. Q., Li, J., Liu, Z. X., Wu, P. T., Yang, Y. K., & Wang, Z. Q. (2020). Steel/basalt rebar reinforced Ultra-High Performance Concrete components against methane-air explosion loads. Composites Part B: Engineering, 198, 108215.

[25] Ministry of Transport of the People’s Republic of China (MTPRC). (2018). JTG 3370.1—2018: Specifications for Design of Highway Tunnels Section 1. Civil Engineering. China Communications Press, Beijing, China (in Chinese).

[26] Mussa, M. H., Mutalib, A. A., Hamid, R., Naidu, S. R., Radzi, N. A. M., & Abedini, M. (2017). Assessment of damage to an underground box tunnel by a surface explosion. Tunnelling and Underground Space Technology, 66, 64-76.

[27] Phulari, V. S., & Goel, M. D. (2021). Dynamic response of tunnel under blast loading and its blast mitigation using CFRP as protective barrier. In Recent Advances in Computational Mechanics and Simulations (pp.555-562). Singapore: Springer.

[28] Qian, H. M., Li, J., Zong, Z. H., Wu, C. Q., & Pan, Y. H. (2021a). Behavior of precast segmental utility tunnel under ground surface Explosion: A numerical study. Tunnelling and Underground Space Technology, 115, 104071.

[29] Qian, H. M., Zong, Z. H., Wu, C. Q., Li, J., & Gan, L. (2021b). Numerical study on the behavior of utility tunnel subjected to ground surface explosion. Thin-Walled Structures, 161, 107422.

[30] Shi, Y. C., Hao, H., & Li, Z. X. (2008). Numerical derivation of pressure- impulse diagrams for prediction of RC column damage to blast loads. International Journal of Impact Engineering, 35(11), 1213-1227.

[31] Wang, J. X., Cao, A. S., Wu, Z., Sun, Z. P., Lin, X., Sun, L., Liu, X. T., Li, H. Q., & Sun, Y. W. (2021). Numerical Simulation of Ultra- Shallow Buried Large-Span Double-Arch Tunnel Excavated under an Expressway. Applied Sciences, 12(1), 39.

[32] Wang, W., Zhang, D., Lu, F. Y., Wang, S. C., & Tang, F. J. (2012). Experimental study on scaling the explosion resistance of a one-way square reinforced concrete slab under a close-in blast loading. International Journal of Impact Engineering, 49, 158-164.

[33] Wang, X. J., Zhang, X. J., Song, L. Y., Zhou, H. Y., Wang, Y. H., Zhang, H., & Cong, P. L. (2021). Mitigating confined blast response of buried steel box structure with foam concrete. Thin-Walled Structures, 169, 108473.

[34] Xie, L. X., Lu, W. B., Zhang, Q. B., Jiang, Q. H., Chen, M., & Zhao, J. (2017). Analysis of damage mechanisms and optimization of cut blasting design under high in-situ stresses. Tunnelling and Underground Space Technology, 66, 19-33.

[35] Xu, J. F., Xie, X. Y., Zhou, Y. X., Qian, Z. F., Jin, G. L., Liu, Z. Y., & Ruan, X. C. (2020). Numerical simulation of explosion of late-excavated tunnel parts of double-arch tunnel without middle drift. IOP Conference Series: Earth and Environmental Science, 570(2), 022023.

[36] Yang, G. D., Wang, G. H., Lu, W. B., Yan, P., & Chen, M. (2019). Damage assessment and mitigation measures of underwater tunnel subjected to blast loads. Tunnelling and Underground Space Technology, 94, 103131.

[37] Yang, G. D., Wang, G. H., Lu, W. B., Zhao, X. H., Yan, P., & Chen, M. (2018). Numerical modeling of surface explosion effects on shallowburied box culvert behavior during the water diversion. Thin-Walled Structures, 133, 153-168.

[38] Yang, H. J. (2006). Deformation characteristic of tunnel surrounding rock under complex conditions. Journal of Railway Engineering Society, 23 (1), 57-60 (in Chinese).

[39] Yang, J. C., Liu, K. W., Li, X. D., & Liu, Z. X. (2020). Stress initialization methods for dynamic numerical simulation of rock mass with high insitu stress. Journal of Central South University, 27(10), 3149-3162.

[40] Zhao, C. J., Tang, Z. X., Wang, P., Feng, J., Zhou, J. N., Kong, X. L., Geng, H. S., Jin, F. N., & Fan, H. L. (2022). Blast responses of shallow-buried prefabricated modular concrete tunnels reinforced by BFRP-steel bars. Underground Space, 7(2), 184-198.

[41] Zhao, H. L., Yu, H. T., Yuan, Y., & Zhu, H. B. (2015). Blast mitigation effect of the foamed cement-base sacrificial cladding for tunnel structures. Construction and Building Materials, 94, 710-718.

[42] Zhao, J. L. (2012). Construction Control Technology of Drilling and Blasting Method in Multi-arch Tunnel. Applied Mechanics and Materials, 204-208, 1293-1296.