Approximate and precise mathematical equations to determine the grouting maximum pressure and grouting intensity number of cement grout in joint rocks to prevent hydraulic jacking

Document Type : Original Article

Authors

1 Civil Engineering, Tabriz Branch, Islamic Azad University, Tabriz, Iran

2 Department of Civil Engineering, Tabriz Branch, Islamic Azad University, Tabriz, Iran.

3 Assistant professor,Department of civil engineering, Tabriz Branch, Islamic azad University, Tabriz, Iran

4 Department of Civil Engineering, Tabriz Branch , Islamic Azad University, Tabriz, Iran

Abstract

Cement grout is grouted in rock joints of the foundations of dams to prevent water leakage and strengthen the foundation. One of the techniques used to control the grouting operation is the grouting intensity number (GIN), which is equal to the sum of the grouting pressure and volume and represents the grouting energy. Pressure in the rock joints creates a hydraulic lifting force that should not exceed its allowable limit so as not to lead hydraulic jacking and failure. The maximum pressure and grouting intensity number are determined accordingly. Simplifying the plan of the grouted joint, which is modeled as a thin cylinder with a radius of the grouting extension radius, the present study determines the relationship between hydraulic lifting force with grouting pressure and grouting intensity number. In this regard, the joint aperture coefficient was defined and determined based on the rock permeability (the amount of joint aperture). Then, following the geometry of rock-soil mass at the top of the joint, which is considered as a truncated cone with a β angle, for the first time approximate and exact mathematical equations were obtained to determine the permissible hydraulic lifting force (based on the approximate and exact formulas of truncated cone volume). Besides, its approximate and exact mathematical equations were compared. Then, following the principle that the hydraulic lifting force should not exceed the allowable limit, the maximum pressure and grouting intensity number were determined. Finally, by defining two parameters the normal pressure and the normal spreading length, the maximum normal pressure was set so that the hydraulic lifting force to be within the allowable range and prevent hydraulic jacking and failure

Keywords

Main Subjects


[1] Zhang, S., Johnsson, F. and Stille, H. (2021). Design Methodology for Grout Curtain Under Dams Founded on Rock. Geotechnical and Geological Engineering, 449.
[2] Petković, B., Agdas, A.S. Zandi, Y., Nikolić, I., Denić, N., Radenkovic, S.D., Almojil, S.F., Roco-Videla, A., Kojić, N., Zlatković, D. and Stojanović, J. (2021). Neuro fuzzy evaluation of circular economy based on waste generation, recycling, renewable energy, biomass and soil pollution. Rhizosphere, 19.
[3] Zandi, Y. (2015). Technology of Grout Engineering from Dam Construction. Tabriz: Froozesh.
[4] Cai, T., Zandi, Y., Agdas, A. S., Selmi, A. Issakhov, A. and Roco-Videla, A. (2021). The compressive strength of concrete retrofitted with wind ash and steel slag pozzolans with a water-cement based polymers. Advances in concrete construction, 11(6), 507-519.
[5] Yanzhen, Q., Zandi, Y., Rahimi, A., Pourkhorshidi, S., Roco-Videla, A., Khadimallah, M., Jameel, M. and Kasehchi, E. and Assilzadeh, H. (2021). Nano-SiO2 for efficiency of geotechnical properties of fine soils in mining and civil engineering. Advances in Nano Research, 11 (3), 301-312.
[6] Ma, R., Karimzadeh, M., Ghabussi, A., Zandi, Y., Baharom, S., Selmi, A. and Maureira-Carsalade, N. (2021) Assessment of composite beam performance using GWO-ELM metaheuristic algorithm. Eng. Comput.
[7] Zandi,Y. and Alayi, M. (2019). Effect of comparison of Ardabil pozzuoli cement and type 2 Sufyan cement compressive strength viewpoints and improvement solutions. Journal of Structural and Construction Engineering, 6 (4), 95-110.
[8] Arani, K.S., Zandi, Y., Pham, B.T. Mu’azu, M.A. Katebi, J. Mohammadhassani, M., Khalafi, S., Mohamad, E.T., Wakil, K. and Khorami, M. (2019). Computational optimized finite element modeling of mechanical interaction of concrete with fiber reinforced polymer. Comput. Concr., 23 (061).
[9] Jain, A. and et al. (2017). Effect of Magnetic Water on Properties of Concrete. International Journal of Engineering Science and Computing, 7(5).
[10] Zandi, Y., Burnaz, O. and Durmus, A. (2012). Determining the temperature distributions of fire exposed reinforced concrete cross sections with different methods. Res. J. Env. Earth Sci., 4(8), 782- 788.
[11] Zanadi, Y. and Akpinar, M. V. (2012). An experimental study on separately ground and together grinding Portland slag cement strength properties. Res. J. Recent Sci., 1(4), 27- 40.
[12] Zandi, Y. (2021). Durability evaluation of concrete made of fly ash and copper slag. Pollack Periodica. 16(3), M. V. 76-82.
 [13] Shahgoli, A., Zandi, Y., Heirati, A., Khorami, M. Mehrabi, P. and Petkovic, D. (2020) Optimisation of propylene conversion response by neuro-fuzzy approach. Int. J. Hydromechatronics, 3(228).
[14] Reddy, S., V., Kumar, K., Sumanth, A. (2017). Effect of Magnetic Field Treated Water on Fresh and Hardened Properties of Concrete. Journal of Civil Engineering and Environmental Technology, 4(2), 134-138.
[15] Saleh, S. and et al. (2019). Improving the strength of weak soil using Polyurethan grouts: A review. Construction and Building Materials, 202, 738-752.
[16] Cai, T., Zandi, Y., Agdas, A. S., Selmi, A., Issakhov, A. and Roco-Videla, A. (2021). The compressive strength of concrete retrofitted with wind ash and steel slag pozzolans with a water-cement based polymers. Advances in concrete construction, 11(6), 507-519.
 [17] Zhang, X. and et al. (2019). Developing an epoxy resin with high toughness for grouting material via co-polymerization method. E-Polymers, 19 (1), 489-498.
[18] Yaghoobi Rafi, J. and Stille, H. (2021). A method for determining grouting pressure and stop criteria to control grout spread distance and fracture dilation. Tunnelling and Underground Space Technology, 112.
[19] Xiao, F., Liu, Q. and Zhao, Z. (2021). Information and knowledge behind data from underground rock grouting. Journal of Rock Mechanics and Geotechnical Engineering, 13(6), 1326-1339.
[20] Rastegarnia, A. and Sohrabi bidar, A. (2017). Assessment of Relationship Between Grouted Values and Calculated Values in Bazoft Site. Geotechnical and Geological Engineering, 35, 1299-1310.
[21] Chen, J., Yang, X. and Ling Li, F. (2020). Investigation into Energy Dissipation During Grouting Uplift. Indian Geotechnical Journal, 56, 930-970.
[22] Majdi, A. and Yazdani, M. (2021). Determination of Hydraulic Jacking Mechanism and Maximum Allowable Grout Pressure during Grout Injection in Anisotropic Rocks. Journal of Mining and Environment, 12 (2), 589-603.
[23] Talukada, P. and Day, A. (2019).  Hydraulic failures of earthen dams and embankments. Innovative Infrastructure Solutions, 42.
[24] Rafi, j. and Stille, H. (2014) Control of rock jacking considering spread of grout and grouting pressure. Tunnelling and underground space technology, 40, 1-15.
[25] Wang, F. and Dai, Z. (2018). Experimental study to identify premonitory factors of landslide dam failures. Engineering Geology, 232, 123-134.
[26] Sagong. Myung. (2021). A proposal and evaluation of a revised GIN method. Journal of Korean Tunnelling and Undergrounding Space Association, 23, 151-165.
[27] Sharifzadeh, M. (2008). Reinforce of rock mass by cement grout in Grouting Intensity Number (GIN) method. Tehran. Jahad daneshgahi Amirkabir industrial university.
[28] Lombardi, G. (2011). CONCRETE FACE ROCKFILLDASUSE OF GIN CRITERIA FOR CONSOLIDATION AND IMPERMEABILIZATION OF THE FOUNDATION ROCK. Consultant, Via R.
[29] Lombardi, G. and Deere, D. (1993). Grouting design and control using the GIN principle0 journal of water power International and dam construction, 15-22.
[30] Jingya, L. and et al. (2017). Optimization Study on Grouting Method Based on the Grouting Intensity Number. International Journal of Simulation: Systems science & technology. 17(1), 35.1-53.3. DOI 10.5013/IJSSST.a.17.01.35.
[31] Turcotte, L. and et al. (1994). The use of stable grout and GIN technique in grouting for dam rehabilitation. Canadian dam safety conferences, 137-161.
[32] Janson, T. (1993). Grouting of fracture planes- the Aspo tunnel. Stockholm, Sweden: Inswidesh; abstract in English, 93/10.
[33] Shahzad, M.I. and et al. (2017). A Case Study of Trial Grouting using Grouting Intensity Number (GIN) and Conventional Method at Trabela 4th Foundation Trabela Dam. Journal of Geotechnical and Transportation Engineering, 3(2), 47-52.
[34] Yaghoobi Rafi, J. and Stille, H. (2015). Applicability of using GIN method, by considering theoretical approach of grouting design. Geotechnical and geological Engineering, 33(6), 1431-1448.
[35] Brantberger, M., Stille, H. and Erikson, M. (2000). Controlling grout spreading in tunnel grouting analyses and developments of the GIN-method. Tunneling and underground space technology,15(4), 343-352.
[36] Stille, H., Janson, T. and Olsson, P. (1994). Experiences from the grouting of the section 1340-2565 m of the tunnel. Progress report 25-94-13, SKB-Aspo HRL, Swedish Nuclear fuel and waste management Co.
[37] Henderson, A. and others. (2008). A New Method for Real-Time Monitoring of Grout Spread through Fractured Rocks. Materials Research Society. 1107.
[38] Al-Kuisi, M. and et al. (2007).  Improvement of dam foundation using grouting intensity number (GIN) technique at Tannur dam site, South Jordan. ESGE, 1-15.
[39] liu w, C. and et al. (2018). Groundwater control and curtain grouting for tunnel construction in completely weathered granite. Bulletin of Engineering Geology and Environment, 77, 515- 531.
[40] Saeidi, O. and others. (2012). Predication of grout penetration length into the jointed rock mass using regression analyses. Scientific Research and Essays, 7(45), 3931-3943.
[41] Janson, T. (1998). Calculation models for estimation of grout take in hard jointed rock. Doctoral thesis 1018.Royal institute of technology, Stockholm, Sweden.