Investigation on dispersivity potential of clayey soils of Varzagan Hajilar earth dam and its relationship with parent rock

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Dadashzadeh Nazila; Asghari Kaljahi Ebrahim; Mansouri Hadiseh

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Journal: ENGINEERING GEOLOGY Year:2019 | Volume:12 | Issue:2 Page(s): 27-41

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Information Journal Paper

Title

Investigation on dispersivity potential of clayey soils of Varzagan Hajilar earth dam and its relationship with parent rock

Author(s)

Dadashzadeh Nazila | Asghari Kaljahi Ebrahim | Mansouri Hadiseh | Issue Writer Certificate

Keywords

dispersive soilsQ1

Pinhole TestQ1

Hajilar damQ1

Leylab plainQ1

Borrow materialQ1

Abstract

The Hajilar earth dam is under construction near the Kharvana Town of Varzaghan County. The height of this earth dam is 95 meters from foundation level. During dam studies have been identified 11 Borrow material sources. As for, the evaporative formations outcrops in the project region and the presence of field evidence such as erosion of the sluice, erosion of the jars, the formation of pit and tunnel in the soil, and the flooding of the water after rainfall, it is necessary to study the potential of the dispersion of fine-grained soils in the area. In this research, the soil characteristics of five borrow sources of the clayey core of dam have been investigated, with emphasis on parent rocks, mineralogy and dispersive tests. For this purpose, field investigation and sampling and determination of parent rock related to Borrow material resources, dispersive tests such as Crumb, double hydrometer, Pinhole and chemical analysis were performed on the samples. The results of this study show that clayey soils with the origin of Neogene evaporation deposits in the Leylab plain have a high dispersive potential and are classified according to the results of Pinhole Tests in group D1. Based on the results of double hydrometer tests, the percentage of dispersion in the Leylab plain is between 45 and 68%. The fine-grained soils around the Hajilar River, which are often the source of igneous rocks, have a low dispersive to non-dispersive.

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APA: Copy

Dadashzadeh, Nazila, Asghari Kaljahi, Ebrahim, & Mansouri, Hadiseh. (2019). Investigation on dispersivity potential of clayey soils of Varzagan Hajilar earth dam and its relationship with parent rock. ENGINEERING GEOLOGY, 12(2 ), 27-41. SID. https://sid.ir/paper/379476/en

Vancouver: Copy

Dadashzadeh Nazila, Asghari Kaljahi Ebrahim, Mansouri Hadiseh. Investigation on dispersivity potential of clayey soils of Varzagan Hajilar earth dam and its relationship with parent rock. ENGINEERING GEOLOGY[Internet]. 2019;12(2 ):27-41. Available from: https://sid.ir/paper/379476/en

IEEE: Copy

Nazila Dadashzadeh, Ebrahim Asghari Kaljahi, and Hadiseh Mansouri, “Investigation on dispersivity potential of clayey soils of Varzagan Hajilar earth dam and its relationship with parent rock,” ENGINEERING GEOLOGY, vol. 12, no. 2 , pp. 27–41, 2019, [Online]. Available: https://sid.ir/paper/379476/en

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