Analysis of Longitudinal Cracks in the Crest of Doroodzan Dam

 

Hossein Moayedi

PhD Candidate, Department of Civil Engineering, University Putra Malaysia, Serdang, Selangor, Malaysia
e-mail: Hossein.Moayedi@gmail.com

Bujang B. K. Huat

Professor, Department of Civil Engineering, University Putra Malaysia, Serdang, Selangor, Malaysia
e-mail: bujang@eng.upm.edu.my

Thamer Ahmad Mohammad Ali

Associate Professor, Department of Civil Engineering, University Putra Malaysia, Serdang, Selangor, Malaysia
e-mail: thamer@eng,upm.edu.my

Ali Torabi Haghighi

Researcher/PhD candidate, Water Resources and Environmental Engineering Laboratory, University of Oulu, Oulu, Finland
e-mail: Ali.TorabiHaghighi@oulu.fi

Afshin Asadi

PhD Candidate, Department of Civil Engineering, University Putra Malaysia, Serdang, Selangor, Malaysia
e-mail: afshin.asadi@yahoo.com

 

ABSTRACT

Doroodzan earth dam is located in 85 km north western of Shiraz, Iran. Because of the unusual seepage flow in the left abutment, in 1992 an impermeable vane was grouted there. Soon after that, obvious changes in water table profile occurred and simultaneously some incremental number of cracks in left abutment crest was appeared. In present study seepage through left abutment has been analyzed by considering water table changes. Different phreatic surface line was carried out from recent 20 years in order to find the most vulnerable one. In addition, Seismic loading used to get proper perception of seismic stability. First, by gathering data from pizometric head through the left abutment, most critical phreatic line in left abutment section of dam was observed. Then by using present phreatic surface in numerical modeling of critical section in the left abutment of dam, long term stability of downstream in different situation were calculated. The conditions were changed by increasing the saturation zone and the time which saturation zone stay through the downstream body.

Keywords: Earth fill dam, Seepage, Longitudinal Crack, Doroodzan dam.

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