Estimation of horizontal to vertical stress ratio (k) by using numerical modeling, case study: The left flank abutment of Seymareh dam- Ilam province

Subject Areas :

Mohammad Mehdi  Alimohammad ¹ (دانشجوی کارشناسی ارشد مهندسی معدن گرایش استخراج دانشگاه آزاد اسلامی واحد علوم و تحقیقات تهران)
Saeed  Aloodari ² (دانشجوی کارشناسی ارشد مهندسی معدن گرایش استخراج دانشگاه آزاد اسلامی واحد علوم و تحقیقات تهران)
Kaveh  Ahangari ³ (استادیار گروه مهندسی معدن دانشگاه ازاد اسلامی واحد غلوم و تحقیقات تهران)

Received: 2016-09-07 Accepted : 2016-09-07 Published : 2011-06-22

Keywords: Horizontal to Vertical Stress Ratio, Seymareh Dam, Failure Zone, UDEC,

Abstract :

Many rock slope stability problems involve complexities relating to geometry, material anisotropy, non-linear behavior, in situ stresses and the presence of several coupled processes (e.g. pore pressures, seismic loading, etc.). This study is about the survey of stability situation and estimation of horizontal to vertical stress ratio of failure zone existing in the left flank abutment of Seymareh Dam. Because of high costs of stress straight measurement, in this area has been used by empirical function for estimating (k). by concerning normal function of located faults and obtained results of empirical relations, was chosen suitable range of (k) values by means of stability analysis of mentioned slope. Value of (k) has been used 0.33 By evaluating of obtained results of slope stability analysis and by concerning important parameters for choosing (k) and their precedence importance