Effect of Dimensions and Shape of Clay Core Section of Earth Dams on Reliability Coefficient of Hydraulic Failure

Authors

Faculty of Civil Engineering, University of Kharazmi, Tehran, Iran

Abstract

Hydraulic fracturing can occur in the fine-grained core of earthen dams. This phenomenon often occurs during the first water intake of the dam when the water pressure suddenly increases. Hydraulic fracturing in Erath dam has investigated laboratory by many researchers (Jaworski, 1981; Jian, 2022; Patel, 2017). In this research, the aim is to investigate numerically the phenomenon of hydraulic fracture and the effect of the dimensions and shape of the clay core section of the Hajiler Chai Dam (an earthen dam with impermeable clay core) located in East Azarbayjan province on the reliability coefficient of hydraulic fracture. For this purpose, first, using Geo-Studio, the phenomenon of hydraulic fracturing has been investigated in two sections in the middle of the core (A-A) and the upstream side of the core (B-B) of the dam for two types of materials CL and CH. Analyzes have been done in the stages of the end of construction, initial dewatering and steady state seepage, and the stages of dam construction have also been considered in the modeling. Also, the possibility of hydraulic fracture in thicker cores and the bottom of the core was also investigated. Finally, the reliability coefficient of hydraulic failure occurrence has been quantitatively calculated for each of the soils in stages and sections and with different criteria, and the suitable soil has been suggested for use in the dam core.

Keywords

Main Subjects

Bandab Consulting Engineering, “Development of Water Resource of Hajilar Dam River in 2th Phase Studies”, Regional Water Company of East Azarbayjan, 2008.

Beiranvand B, “Study of hydraulic failure mechanism in the core of Eyvashan earth dam with the effect of pore water pressure and arching”, Journal of Stress Analysis, 2020, 4 (2). https://doi.org/55-67, 10.22084/JRSTAN.2020.20022.1110.

Cornet FH, Doan ML, Fontbonne F, “Electrical imaging and hydraulic testing for a complete stress determination, International Journal of Rock Mechanics and Mining Sciences, 2003, 40, 2-6.

        https://doi.org/10.1016/S1365-1609(03)00109-6

Fukushima S, “Hydraulic fracturing criterion in the core of fill dam”, Report of Fujita Kogyo Technical Institute, 1986, 22, 131-136.

Ghanbari A, Shams Rad SH, “Development of an empirical criterion for predicting the hydraulic fracturing in the core of earth dams”, Acta Geotechnica 10(2), 243-254 2015. https://doi.org/10.1007/s11440-013-0263-2

Ghanbari A, “Principles of Earth Dams Engineering”, Kharazmi University Publisher, Tehran, 2015.

Gybert B, Andrew P, “Simulating hydraulic fracturing preconditioning in mines with the material point method”, Journal of Applied Geophysics, 2021, 195, 104471.

 https://doi.org/10.1016/j.jappgeo.2021.104471.

Haeri SM, Faghihi D, “Predicting hydraulic fracturing in Hyttejuvet dam”, Sixth International Conference on Case Histories in Geotechnical Engineering, Missouri University of Science and Technology, 2008.

Jaworski GW, Duncan JM, Seed HB, “Laboratory study of hydraulic fracturing”, Journal of the Geotechnical Engineering Division, 1981, ASCE, 107 (6), 713-732. https://doi.org/10.1061/AJGEB6.0001147

Jian CH, Kuaga Sheng ZH, Han L, “Laboratory investigation on hydraulic fracture propagation in sandstone-mudstone-shale layers”, Petroleum Science, 2022, 19 (4), 1664-1673.

 https://doi.org/10.1016/j.petsci.2022.03.018

Khamesi O, Mirghasemi A, “Investigation of hydraulic fracturing in the core of earth dams”, Civil and Survey Engineering, 2008, 44 (2), 181-191.

Lto T, “Effect of pore pressure gradient on fracture initiation in fluid saturated porous media”, Institute of Fluid Science, 2007, Tohoku University, 1-4.

Mori A, Tamura M, “Hydrofracturing pressure of cohesive soils, Soils and Foundations”, Japanese Society of Soil Mechanics and Foundation Engineering, 1987, 14-22.

 https://doi.org/10.3208/sandf1972.27.14

Nathan SH, Armando D, ”A three- dimensional generalized finite element method for simultaneous propagation of multiple hydraulic fracture from a wellbore”, Engineering Fracture Mechanics, 2022, 108360

 https://doi.org/10.1016/j.engfracmech.2022.108360

Patel SM, Sandergeld CS, Rai, “Laboratory Study of Hydraulic Fracturing by Ciclic Injection”, International Journal of Rock Mechanics and Mining Science, 2017, 95, 8-15.

 https://doi.org/10.1016/j.ijrmms.2017.03.008

Poudel S, Abby SJ, Ngambi S, “Mechanism of hydraulic fracturing in cohesive zone of embankment dam core-A Review”, International of Civil Engineering and Technology (IJCIET), 2017, 8 (7), 1202-1213.

Sadettin, Topchu, “Estimation of Hydraulic Fracturing Potential for Clay-Core Rockfill Dams and an Example: Çınarcık Dam”, International Eurasian Conference on Science, Engineering and Technology, 2018.

Satoh H, Yamaguchi Y, “Laboratory hydraulic fracturing tests for core materials using large size hollow cylindrical specimens”, The International Symposium on Rockfill Dams, 2009.

Shams Rad Shima, “Numerical study of hydraulic fracturing phenomena in the core of earth dams”, MSc Thesis, Kharazmi University, Tehran, 2011.

Solava, Delatte, “Teton Dam Failure Case Study”, Procedings of the 3th ASCE Forensice Congress, San Diego, California, 2003.

References

Bandab Consulting Engineering, “Development of Water Resource of Hajilar Dam River in 2th Phase Studies”, Regional Water Company of East Azarbayjan, 2008.
Beiranvand B, “Study of hydraulic failure mechanism in the core of Eyvashan earth dam with the effect of pore water pressure and arching”, Journal of Stress Analysis, 2020, 4 (2). https://doi.org/55-67, 10.22084/JRSTAN.2020.20022.1110.
Cornet FH, Doan ML, Fontbonne F, “Electrical imaging and hydraulic testing for a complete stress determination, International Journal of Rock Mechanics and Mining Sciences, 2003, 40, 2-6.
        https://doi.org/10.1016/S1365-1609(03)00109-6
Fukushima S, “Hydraulic fracturing criterion in the core of fill dam”, Report of Fujita Kogyo Technical Institute, 1986, 22, 131-136.
Ghanbari A, Shams Rad SH, “Development of an empirical criterion for predicting the hydraulic fracturing in the core of earth dams”, Acta Geotechnica 10(2), 243-254 2015. https://doi.org/10.1007/s11440-013-0263-2
Ghanbari A, “Principles of Earth Dams Engineering”, Kharazmi University Publisher, Tehran, 2015.
Gybert B, Andrew P, “Simulating hydraulic fracturing preconditioning in mines with the material point method”, Journal of Applied Geophysics, 2021, 195, 104471.
 https://doi.org/10.1016/j.jappgeo.2021.104471.
Haeri SM, Faghihi D, “Predicting hydraulic fracturing in Hyttejuvet dam”, Sixth International Conference on Case Histories in Geotechnical Engineering, Missouri University of Science and Technology, 2008.
Jaworski GW, Duncan JM, Seed HB, “Laboratory study of hydraulic fracturing”, Journal of the Geotechnical Engineering Division, 1981, ASCE, 107 (6), 713-732. https://doi.org/10.1061/AJGEB6.0001147
Jian CH, Kuaga Sheng ZH, Han L, “Laboratory investigation on hydraulic fracture propagation in sandstone-mudstone-shale layers”, Petroleum Science, 2022, 19 (4), 1664-1673.
 https://doi.org/10.1016/j.petsci.2022.03.018
Khamesi O, Mirghasemi A, “Investigation of hydraulic fracturing in the core of earth dams”, Civil and Survey Engineering, 2008, 44 (2), 181-191.
Lto T, “Effect of pore pressure gradient on fracture initiation in fluid saturated porous media”, Institute of Fluid Science, 2007, Tohoku University, 1-4.
Mori A, Tamura M, “Hydrofracturing pressure of cohesive soils, Soils and Foundations”, Japanese Society of Soil Mechanics and Foundation Engineering, 1987, 14-22.
 https://doi.org/10.3208/sandf1972.27.14
Nathan SH, Armando D, ”A three- dimensional generalized finite element method for simultaneous propagation of multiple hydraulic fracture from a wellbore”, Engineering Fracture Mechanics, 2022, 108360
 https://doi.org/10.1016/j.engfracmech.2022.108360
Patel SM, Sandergeld CS, Rai, “Laboratory Study of Hydraulic Fracturing by Ciclic Injection”, International Journal of Rock Mechanics and Mining Science, 2017, 95, 8-15.
 https://doi.org/10.1016/j.ijrmms.2017.03.008
Poudel S, Abby SJ, Ngambi S, “Mechanism of hydraulic fracturing in cohesive zone of embankment dam core-A Review”, International of Civil Engineering and Technology (IJCIET), 2017, 8 (7), 1202-1213.
Sadettin, Topchu, “Estimation of Hydraulic Fracturing Potential for Clay-Core Rockfill Dams and an Example: Çınarcık Dam”, International Eurasian Conference on Science, Engineering and Technology, 2018.
Satoh H, Yamaguchi Y, “Laboratory hydraulic fracturing tests for core materials using large size hollow cylindrical specimens”, The International Symposium on Rockfill Dams, 2009.
Shams Rad Shima, “Numerical study of hydraulic fracturing phenomena in the core of earth dams”, MSc Thesis, Kharazmi University, Tehran, 2011.
Solava, Delatte, “Teton Dam Failure Case Study”, Procedings of the 3th ASCE Forensice Congress, San Diego, California, 2003.

Files

Share

How to cite

Statistics