نوع مقاله : مقاله پژوهشی
نویسندگان
1 استادیار گروه عمران دانشکده مهندسی دانشگاه صنعتی خاتم الانبیاء بهبهان
2 دانشیار گروه مهندسی عمران، دانشگاه صنعتی خاتم الانبیاء بهبهان
چکیده
کلیدواژهها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
Various factors influence the stability and flow rate of earth dams, including geometric characteristics, material permeability, and upstream water height. Understanding unsaturated soil behavior in earth dams is crucial, necessitating the application of unsaturated soil mechanics principles due to the complexities involved. Ignoring uncertainties in geotechnical studies can lead to inaccurate safety factor estimations for dam slope stability. In this research, the effect of unsaturated soil on the seepage discharge value and the safety factor of stability downstream of the earth dam under different conditions has been studied. For this, the Seydon Dam in Khuzestan province in Iran has been studied. The results show that considering the soil of the dam body as a saturated-unsaturated model reduces the calculated flow rate passing through the dam and increases the safety factor of the downstream slope in probabilistic and deterministic analysis. Also, sensitivity analysis shows that the parameters of the earth dam shell have the greatest effect on the stability of the downstream slope. The results of the spatial variation analysis show that considering the spatial changes for the soil parameters will reduce the safety factor of the slope downstream of the dam compared to the normal state.
کلیدواژهها [English]
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