Assessment of geotechnical properties of Draa El Mizane highway tunnel (Algeria)
/ 0
- Details
- Category: Content №6 2020
- Last Updated on 22 December 2020
- Published on 30 November -0001
- Hits: 2320
Authors:
N.Fellouh, Laboratory of Mineral Resources Valorization and Environment, Badji Mokhtar University, Annaba, Algeria, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
M.L.Boukelloul, Laboratory of Mineral Resources Valorization and Environment, Badji Mokhtar University, Annaba, Algeria, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
A.Aissi, Mining, Metallurgy and Materials Laboratory, National High School of Mining and Metallurgy, Annaba, Algeria
M.Fredj, Laboratory of Mineral Resources Valorization and Environment, Badji Mokhtar University, Annaba, Algeria, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Naukovyi Visnyk Natsionalnoho Hirnychoho Universytetu. 2020, (6): 055 - 060
https://doi.org/10.33271/nvngu/2020-6/055
Abstract:
Purpose. To show the results of geotechnical studies and design the support system chosen in complex geological conditions especially in fault zones. The Draa El Mizane highway tunnel was a research site.
Methodology. The determination of geotechnical properties by different classification systems for the quality of the rock mass such as the Q index, Rock Mass Rating RMR and the Geological Resistance Index GSI. In addition, the choice of the support system is validated by numerical modeling via the 2D Phase 2 program.
Findings. The geotechnical measures developed through extensometer monitoring show a major compatibility between the geotechnical design and the digital simulation, which validates the reliability of the selected support system.
Originality. A type of support chosen during construction is established, which corresponds to local specific conditions in order to eliminate instabilities.
Practical value. The values obtained by numerical modeling can give us a final decision for the support system chosen: values in terms of deformations in order of 1.5 cm at the top, 7.5 and 13.5 cm for the left and right wings respectively, 9.0 and 18 cm in the lower half left and right, 22.5 cm for the base of the tunnel. Furthermore, the results obtained by the measurements of instrumentation in the dimensioning of the support type are well illustrated through the measurements by an extensometer, which are very compatible with the results of numerical modeling.
Keywords: classification systems, geotechnical engineering, Phase2 2D, Fault zone, underground structures, Draa El Mizane highway tunnel
References.
1. Kun, Mete (2015). The effect of shallow depth tunnelling on aboveground constructions. Arabian Journal of Geosciences, 8(7), 5247-5256. https://doi.org/10.1007/s12517-014-1507-7.
2. Marinos, V. (2019). A revised, geotechnical classification GSI system for tectonically disturbed heterogeneous rock masses, such as flysch. Bulletin of Engineering Geology and the Environment, 78(2), 899-912. https://doi.org/10.1007/s10064-017-1151-z.
3. Chen, J., Liu, W., Chen, L., Luo, Y., Li, Y., Gao, H., & Zhong, D. (2020). Failure mechanisms and modes of tunnels in monoclinic and soft-hard interbedded rocks: a case study. KSCE Journal of Civil Engineering, 1-17. https://doi.org/10.1007/s12205-020-1324-3.
4. Arab, M., Rabineau, M., Dverchre, J., Bracene, R., Belhai, D., Roure, F., & Sage, F. (2016). Tectonostratigraphic evolution of the eastern Algerian margin and basin from seismic data and onshore-offshore correlation. Marine and Petroleum Geology, 77, 1355-1375. https://doi.org/10.1016/j.marpetgeo.2016.08.021.
5. Adi, Ch., Beslierb, M.-O., Yelles-Chaouchea, A.K., Klingelhoeferc, F., Bracened, R., Galveb, A., Bounife, A., , & Dverchref, J. (2018). Deep structure of the continental margin and basin off Greater Kabylia, AlgeriaNew insights from wide-angle seismic data modeling and multichannel seismic interpretation. Tectonophysics, 728, 1-22. https://doi.org/10.1016/j.tecto.2018.01.007.
6. Kumar, R., Choudhury, D., & Bhargava, K. (2016). Determination of blast-induced ground vibration equations for rocks using mechanical and geological properties. Journal of Rock Mechanics and Geotechnical Engineering, 8(3), 341-349. https://doi.org/10.1016/j.jrmge.2015.10.009.
7. Barton, N., & Shen, B. (2017). Risk of shear failure and extensional failure around over-stressed excavations in brittle rock. Journal of Rock Mechanics and Geotechnical Engineering, 9(2), 210-225. https://doi.org/10.1016/j.jrmge.2016.11.004.
8. Hatzor, Y.H., He, B.G., & Feng, X.T. (2017). Scaling rockburst hazard using the DDA and GSI methods. Tunnelling and Underground Space Technology, 70, 343-362. https://doi.org/10.1016/j.tust.2017.09.010.
9. Ren, Q., Wang, G., Li, M., & Han, S. (2019). Prediction of rock compressive strength using machine learning algorithms based on spectrum analysis of geological hammer. Geotechnical and Geological Engineering, 37(1), 475-489. https://doi.org/10.1007/s10706-018-0624-6.
10. Fattahi, H., & Moradi, A. (2018). A new approach for estimation of the rock mass deformation modulus: a rock engineering systems-based model. Bulletin of Engineering Geology and the Environment, 77(1), 363-374. https://doi.org/10.1007/s10064-016-1000-5.
11. Kayabasi, A., & Gokceoglu, C. (2018). Deformation Modulus of Rock Masses: An Assessment of the Existing Empirical Equations. Geotechnical and Geological Engineering, 36, 2683-2699. https://doi.org/10.1007/s10706-018-0491-1.
12. Bahaaddini, M., & Moghadam, E.H. (2019). Evaluation of empirical approaches in estimating the deformation modulus of rock masses. Bulletin of Engineering Geology and the Environment, 78(5), 3493-3507. https://doi.org/10.1007/s10064-018-1347-x.
13. Komu, M.P., Guney, U., Kilickaya, T.E., & Gokceoglu,C. (2020). Using 3D Numerical Analysis for the Assessment of TunnelLandslide Relationship: BahceNurdag Tunnel (South of Turkey). Geotechnical and Geological Engineering, 38(2), 1237-1254. https://doi.org/10.1007/s10706-019-01084-9.
14. Kanik, M. (2019). Evaluation of the limitations of RMR89 system for preliminary support selection in weak rock class. Computers and Geotechnics, 115, 103159. https://doi.org/10.1016/j.compgeo.2019.103159.
15. Katsigiannis, G. (2017). Modern Geotechnical Codes of Practice and New Design Challenges Using Numerical Methods for Supported Excavations (Doctoral dissertation, UCL (University College London)). Retrieved from https://discovery.ucl.ac.uk/id/eprint/10037673.
16. Rehman, H., Naji, A.M., Ali, W., Junaid, M., Abdullah,R.A., & Yoo, H.K. (2020). Numerical evaluation of new Austrian tunneling method excavation sequences: A case study. International Journal of Mining Science and Technology. https://doi.org/10.1016/j.ijmst.2020.03.009.
Newer news items:
- Determining conditions of using draglines in single-tier internal dump formation - 22/12/2020 00:15
- Obtaining kinetic characteristics of combustion of the coke from solid biofuels - 22/12/2020 00:15
- Influence of particle geometry on the efficiency of operation of quasistatic and inertial disintegrators - 22/12/2020 00:15
- Dynamic analysis of thin laminated viscoelastic structures under elevated temperature using finite element modeling - 22/12/2020 00:15
- Sodium silicate solute foaming in a flat slot-type capillary under microwave radiation influence - 22/12/2020 00:15
- Effect of alloying heat-resistant packing coatings on their tribotechnical, physical and mechanical properties - 22/12/2020 00:15
- Forecasting of wear of pads of modernized brake system devices of bogies of freight cars using ARIMA models - 22/12/2020 00:15
- Energy-efficient predictive control for field-orientation induction machine drives - 22/12/2020 00:15
- Integrated system of modular power supply and multilevel control of brushless dc motor for electric vehicles - 22/12/2020 00:15
- Adaptation of the high-pressure electrolyzer in the conditions of joint operation with TPP and NPP power-generating units - 22/12/2020 00:15
Older news items:
- Determining conditions of using draglines in single-tier internal dump formation - 22/12/2020 00:15
- Obtaining kinetic characteristics of combustion of the coke from solid biofuels - 22/12/2020 00:15
- Influence of particle geometry on the efficiency of operation of quasistatic and inertial disintegrators - 22/12/2020 00:15
- Dynamic analysis of thin laminated viscoelastic structures under elevated temperature using finite element modeling - 22/12/2020 00:15
- Sodium silicate solute foaming in a flat slot-type capillary under microwave radiation influence - 22/12/2020 00:15
- Effect of alloying heat-resistant packing coatings on their tribotechnical, physical and mechanical properties - 22/12/2020 00:15
- Forecasting of wear of pads of modernized brake system devices of bogies of freight cars using ARIMA models - 22/12/2020 00:15
- Energy-efficient predictive control for field-orientation induction machine drives - 22/12/2020 00:15
- Integrated system of modular power supply and multilevel control of brushless dc motor for electric vehicles - 22/12/2020 00:15
- Adaptation of the high-pressure electrolyzer in the conditions of joint operation with TPP and NPP power-generating units - 22/12/2020 00:15
Archive