In collaboration with Iranian Watershed Management Association

Document Type : Research Paper

Authors

1 Assistant Professor, Soil Conservation and Watershed Management Research Department, Ardabil Agricultural and Natural Resources Research and Education Center, Agricultural Research, Education and Extension Organization (AREEO), , Ardabil, Iran

2 MSc on Civil Engineering and Geotechnic, Islamic Azad University, Marand Branch, Marand, Iran

Abstract

The southern areas of Ardebil Province have clay sedimentary rocks and many damages have been made because of new landslide occurrence or reactivation of old landslides every year. The clay sedimentary layers are related to the Upper Red Formations to the Neogene period in the study region. The clay minerals could be the main reason of the landslide occurrence because of swelling and shrinkage characteristics of soils. This research was carried out to test the hypothesis of the effect of clay expansive soils in slope instability. This area extends to 164500 ha, and 11.91% of it found to be affected by landslides. 32.8% of the whole area of the clay sedimentary rocks had experienced landslides. Minimum percentages of sand, silt and clay particles in the soil samples are 0.0, 23.4 and 8, and the maximum values ​​are 39.9, 72 and 54.5, respectively. Minimum liquid limit of samples is 36.7% and its maximum is 67.66. The plastic limit of the samples also varies between 19 and 33.13%. Soils have a pH above 8. The cation exchange capacity above 30.41 milligrams per 100 grams of soil, which reaches up to 76.52, is one of the main characteristics of the soils in the region. The swelling potential rates of the soils of landslide area have been classified to four respective zones indicating the low, medium, high and very high swelling potential using physical and chemical properties of soils and based on different methods. At least 80% of the soil samples in the area have a swelling potential with medium to high intensity and 87.2% of them are located in zones of high and very high landslide hazard. The expansive clay soils are one of the main causes of landslide occurrence in the region.

Keywords

  1. Aprile, F. and R. Lorandi. 2012. Evaluation of Cation Exchange Capacity (CEC) in tropical soils using four different analytical methods. Journal of Agricultural Science, 4(6): 278-289.
  2. Asgarei, F., A. Fakher. 1993. Swelling and dispersivity of soils: from geotechnical engineer point of view. Jahād-e Dāneshgāhi of Tehran University, 245 pages (in Persian).
  3. 1992. Standard test method for particle-size analysis of soils. Annual Book of ASTM Standards, Vol. 04-08, D422-63.
  4. Azañón, J.M., A. Azor, J. Yesares, M. Tsige, R. M. Mateos, F. Nieto, J. Delgado, M. López-Chicano, W. Martín and J. Rodríguez-Fernández. 2010. Regional-scale high-plasticity clay-bearing formation as controlling factor on landslides in Southeast Spain. Geomorphology, 120: 26–37.
  5. Bakhshipouri, Z., M. Abbaspour, M. Beygi and S. Nikdel. 2014. A comparison between methods for determining divergence of soil and proposed a new method based on soil activity number. The Electronic Journal of Geotechnical Engineering (EJGE), 19, Bund, G.: 1471-1480.
  6. Baynes, F.J. 2008. Anticipating problem soils on linear projects. In: Conference proceedings on Problem Soils in South Africa, 3–4: 9–21.
  7. Castellanos Abella, E.A., 2008. Multi-scale landslide risk assessment in Cuba. ITC, International Institute for Geo-Information Science and Earth Observation, Enschede, The Netherlands, ITC dissertation number 154, 293 pages.
  8. Chen, F.H. 1975. Foundation on expansive soils. Elsevier Scientific Publishing Company, New York.
  9. Chen, F.H.1988. Foundations on expansive soils. Elsevier, New York, 461 pages.
  10. Dakshanamurthy, V. and V. 1973. A simple method of identifying an expansive soil. Soils and Foundations, Japanese Society of Soil Mechanics and Foundation Engineering, 13(1): 97-104.
  11. Davies, R.G, G.C. Clark, B. Hamzepour and C.R. Jones. 1975. Explanatory text of the Bandar-e-Pahlavi quadrangle map, 1:250000. Geological Survey of Iran, No. D3, 203 pages.
  12. Davies, R.G., C.R. Jones, B. Hamzepour and G.C. Clark. 1972. The Geology of the Masuleh Sheet (northwest Iran). Geology Survey of Iran, Report No. 24, 110 pages.
  13. Faridi, M. and A. Anvari. 2000. Geological map of the Hashtchin area, 1:100000. Geological Survey of Iran, No. 5664 (in Persian).
  14. Galeandro, A., A. Doglioni, V. Simeone and J. Šimůnek. 2014. Analysis of infiltration processes into fractured and swelling soils as triggering factors of landslides. Environmental Earth Sciences, 71:2911–2923.
  15. Hunt, R.E., 1984. Geotechnical engineering investigation manual. McGraw Hill, 896 pages.
  16. Jie, X., T. Chao and X. He-ping. 2017. Causes of shallow landslides of expansive soil slopes. Journal of Highway and Transportation Research and Development, 11(1): 1-6.
  17. Jordaan, W.J., 2007. Meaningful CEC values of clay minerals from heavy mineral deposits. The 6th International Heavy Minerals Conference ‘Back to Basics’, the Southern African Institute of Mining and Metallurgy, 163-166.
  18. Khemissa, M. and A. Mahamedi. 2014. Cement and lime mixture stabilization of an expansive overconsolidated clay. Applied Clay Science: 95: 10-110.
  19. Kojima, H., F. Chung Chang-Jo, and C.J. van Westen. 2000. Strategy on the landslide type analysis based on the expert knowledge and the quantitative prediction model. International Archives of Photogrammetry and Remote Sensing, XXXIII, B7: 701-707.
  20. Mahmodi, K., H. Mehrnahad and K. Barkhordari. 2014. Laboratory studies to diagnosis problematic soils of Ardakan. Amirkabir University of Technology (Tehran Polytechnic) 46(1): 29- 31 (in Persian).
  21. Majidi, A., G. Lashkaripour and Z. Shoaei. 2017. Prediction of swelling potential of marl soils of Salt Lake Watershed. Watershed Engineering and Management, 9(3): 292-307 (in Persian).
  22. Manish, D., 2016. Damage mechanism in problematic soils. International Journal of Civil Engineering and Technology (IJCIET), 7(5): 232–241.
  23. Meisina, C., 2006. Characterisation of weathered clayey soils responsible for shallow landslides. Natural Hazards and Earth System Sciences, 6: 825–838.
  24. Mohammady, M., H.R. Pourghasemi and B. Pradhan. 2012. Landslide susceptibility mapping at Golestan Province, Iran: a comparison between frequency ratio, Dempster–Shafer and weights-of-evidence models. Journal of Asian Earth Sciences, 61: 221–236.
  25. Mugagga, F., V. Kakembo and M. Buyinza. 2012. A characterisation of the physical properties of soil and the implications for landslide occurrence on the slopes of Mount Elgon, Eastern Uganda. Natural Hazards, 60(3): 1113-1131.
  26. OFDA/CRED, 2007. EM-DAT, International emergency disaster database. em-dat.net, Université Catholique de Louvian, Brussels, Belgium.
  27. Pradhan, B. and S. Lee. 2010. Landslide susceptibility assessment and factor effect analysis: backpropagation artificial neural networks and their comparison with frequency ratio and bivariate logistic regression modeling. Environmental Modelling and Software, 25: 747–759.
  28. Raghuvanshi, T.K., J. Ibrahim and D. Ayalew. 2014. Slope Stability Susceptibility Evaluation Parameter (SSEP) rating scheme, an approach for landslide hazard zonation. Journal of African Earth Sciences, 99: 595–612.
  29. Schulz, W.H., J.B. Smith, G. Wang, Y. Jiang, and J.J. Roering. 2018. Clayey landslide initiation and acceleration strongly modulated by soil swelling. Geophysical Research Letters, https://www.researchgate.net/publication/323232586.
  30. Skempton, A.W. 1953. The colloidal activity of clays. 3rd International Conference on Soil Mechanics and Foundation Engineering, Switzerland, Vol. 1.
  31. Sudjianto, A.T., K.B. Suryolelono, A. Rifai and I.B. Mochtar. 2011. The effect of water content change and variation suction in behavior swelling of expansive soil. International Journal of Civil and Environmental Engineering, IJCEE-IJENS, 11(03): 11-17.
  32. Talaei, R. 2018. A combined model for landslide susceptibility, hazard and risk assessment. AUT Journal of Civil Engineering, 2(1): 11-28.
  33. Talaei, R., 2014. Landslide susceptibility zonation mapping using logistic regression and its validation in Hashtchin region, northwest of Iran. Journal of the Geological Society of India, 84(1): 68-86.
  34. Talaei, R., H. Peyrowan, A. Jafari ardekani, B. Beyrami and J. Ghayomian. 2013. Classification and determination of erodibility indices of Ardabil Province marls. Final Research Report, Soil Conservation and Watershed Management Research Institute, 113 pages (in Persian).
  35. Talaei, R., J. Gauomian, M. Shariat jafari and E. Aliakbarzadehe. 2004. Study on effective factor causing landslide. Final Research Report, Soil Conservation and Watershed Management Research Institute, 154 pages (in Persian).
  36. Van Der Merwe, D.H. 1964. The prediction of heave from the plasticity index and percentage clay fraction of soils. Civil Engineer in South Africa, 6(6):103-106.
  37. Weston, D.J., 1980. Expansive roadbed treatment for Southern Africa. Proceedings of the Conference on Expansive Soils ASCE, Denver, Colorado, June 16-18.
  38. Williams, A.B. and G.W. Donaldson. 1980. Developments relating to building on expansive soils in South Africa: 1973–1980. Proceedings of the 4th International Conference on Expansive Soils, Denver, 2: 834–844.
  39. Yalcin, A. 2007. The effects of clay on landslides: a case study. Applied Clay Science, 38: 77-85.
  40. Yilmaz, I., 1999. Relationships among cation exchange capacity, liquid limit and swelling percent: an example from Niksar and Erbaa Basin (in Turkish), in: Yeniyol, M., Öngen, S., Ustaömer, P.A., (Eds.), 9th National Clay Symposium, Istanbul, 39-42.
  41. Yilmaz, I., 2006. Indirect estimation of the swelling percent and a new classification of soils depending on liquid limit and cation exchange capacity. Engineering Geology, 85: 295- 301.
  42. Yukselen-Aksoy, Y. and A. Kaya. 2010. Predicting soil swelling behaviour from specific surface area. Proceeding of the Institution of Civil Engineers: Geotechnical Engineering, 163 (GE4): 229-238.
  43. Zheng, J.L. and H.P. Yang. 2009. Expansive soil engineering of highway. Beijing: China Communication Press.