hydro-mechanical interaction effects on concrete dam stability
Publish place: Symposium on Uncertainty Assessment in Dam Engineering
Publish Year: 1384
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:
SUADE01_072
تاریخ نمایه سازی: 15 آبان 1390
Abstract:
This work presents the study of the interaction between seepage phenomenon and mechanical stability of jointed rock mass in concrete dam foundation. The main goal of this research is the evaluation of design parameters like uplift forces, rock stress state etc, by considering the hydromechanical coupling in jointed rock mass in concrete dam foundation. The mechanical behavior of intact rock is assumed to be elastic but rock joints because of special nature have a nonlinear behavior. The material constitutive law modeled by Barton-Bandis criterion. The governing hydraulic equation is according to the Darcy's law based on laminar flow assumption through rock joints effective aperture. The algorithm is encoded on the platform of the finite element program FEAPpv. The hydromechanical interaction effects are evaluated for several cases of mathematical models. It is shown that contrary to the current practice, the inclusion of the hydromechanical interaction might be quite essential.
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Authors
M. KHANDAN BAKAVOLI
Tarbiat Modares University
M. T. AHMADI
School of Engineering, Tarbiat Modares University
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