Introduction of the seepage device for examining the one to four hundred model of the Karkheh Dam.

Ali Mahbod; Hamid Reza Saba; Mostafa Yousofi Rad; Hamid Lajvardi

doi:10.63053/ijset.86

Authors

Ali Mahbod Civil Engineering Group, Arak Branch, Islamic Azad University, Arak, Iran
Hamid Reza Saba Assistant Professor, Faculty of Civil Engineering, Tafresh University, Iran
Mostafa Yousofi Rad Geology Group, Faculty of Earth Sciences, Arak Industrial University, Iran
Hamid Lajvardi Civil Engineering Group, Arak Branch, Islamic Azad University, Arak, Iran

DOI:

https://doi.org/10.63053/ijset.86

Keywords:

Cutoff Wall, Earth Dam, Plaxis, Seepage Test

Abstract

Earth dams, as one of the largest earthen structures, are subjected to various failure mechanisms, some of which, such as cracking and hydraulic failure, occur within the dam body, while other mechanisms like liquefaction, divergence, and dissolution arise from the geotechnical properties of the foundation or the region's bed. In this research, which is derived from a doctoral dissertation, an evaluation of the geomechanical parameters affecting the occurrence of hydraulic failure was conducted to understand the interaction between the dam body and these parameters and to provide a safe model for reducing the risk of constructing earth dams and studying ways to address problematic foundations. The modeling of the issue was performed using the finite element numerical method with the PLAXIS computational code. In this laboratory study, by varying the mixing percentage of the materials in the cutoff wall, their effects on the behavior of the earth dam were investigated. The results indicated that the laboratory results presented in this research have a suitable overlap with the software results, and using this device, the seepage in each mixing design can be calculated based on dimensional analysis.

References

Rahimi, H. (1389),"Embankment Dams," University of Tehran press, Iran, 671pp.

Hu, L., Wu, X., Liu, Y.,Meegoda, J.N., Gao, S., 2010. Physical modeling of air flow during air sparging remediation. Environ. Sci. Technol. 44 (10), 3883–3888.

Du, Y.J., Jiang, N.J., Liu, S.Y., Jin, F., Singh, D.N., Puppala, A.J., 2014a. Engineering properties and microstructural characteristics of cement-stabilized zinc-ontaminated kaolin. Can. Geotech. J. 51 (3), 289–302.

Du, Y.J., Wei, M.L., Reddy, K.R., Liu, Z.P., Jin, F., 2014b. Effect of acid rain pH on leaching behavior of cement stabilized lead-contaminated soil. J. Hazard.Mater. 271, 131– 40.

Xue, Q., Li, J.S., Liu, L., 2013. Experimental study on anti-seepage grout made of leachate contaminated clay in landfill. Appl. Clay Sci. 80–81, 438–442.

Evans, J.C., Costa, M.J., Cooley, B., 1995. The state-of-stress in soil–bentonite slurry trench cutoff walls. In: Acar, Y.N., Daniel, D.E. (Eds.), Geoenvironment 2000: Characterization, Containment, Remediation, and Performance in Environmental Geotechnics. ASCE GSP 46. ASCE, Reston, VA, pp. 1173–1191.

Sharma, H.D., Reddy, K.R., 2004. Geoenvironmental Engineering: Site Remediation,Waste Containment, and Emerging Waste Management Technologies. JohnWiley and Sons Inc., New York.

Malusis, M.A., Barben, E.J., Evans, J.C., 2009. Hydraulic conductivity and compressibility of soil–bentonite backfill amended with activated carbon. J. Geotech. Geoenviron. Eng. ASCE 135 (5), 664–672.

Ruffing, D.G., Evans, J.C., Malusis, M.A., 2010. Prediction of earth pressures in soil– bentonite cutoff walls. In: Fratta, D.O., Puppala, A.J., Muhunthan, B. (Eds.), GeoFlorida 2010: Advances in Analysis, Modeling and Design. ASCE GSP 199. ASCE, Reston, VA, pp. 2416–2425.

Hong, C.S., Shackelford, C.D.,Malusis,M.A., 2010. Consolidation and hydraulic conductivity of zeolite amended soil–bentonite backfills. J. Geotech. Geoenviron. Eng. ASCE 138 (1), 15–25.

Fan, R.D., Du, Y.J., Reddy, K.R., Liu, S.Y., Yang, Y.L., 2014a. Compressibility and hydraulic conductivity of clayey soil mixed with calcium bentonite for slurry wall backfill: initial assessment. Appl. Clay Sci. 101, 119–127.

Malusis, M.A., McKeehan, M.D., 2013. Chemical compatibility of model soil–bentonite backfill containing multiswellable bentonite. J. Geotech. Geoenviron. Eng. ASCE 139 (2), 189–198.

Yong, R.N., Ouhadi, V.R., Goodarzi, A.R., 2009. Effect of Cu2+ ions and buffering capacity on smectite microstructure and performance. J. Geotech. Geoenviron. Eng. ASCE 135 (12), 1981–1985.