Effect of hydro-mechanical behavior of joints in concrete arch dams safety Tkyhgah

Sakhtgahhay Tkyhgah and serve as the foundation stone of concrete arch dams selected Are due to the specific structures and delivery of this precipitation should have a strength And hardness are high. The other hand, fragile nature of stones due to their hard Typically joint and several categories are discontinuities. There serve as joint Pages weakness and important influences their properties can stability of these structures Is associated with enormous risk. Bhhmyn discontinuties role because it is necessary to Concrete arch dams on sustainability will be investigated thoroughly. The study Software using UDEC, the stability of concrete dams Tkyhgah There arcduring the dry Dvhalt joints based on two methods to increase Parameters of water pressure behind the dam and the reduction of joint strength parameters, SRF, Evaluation. In this regard, and to better compare the two modes, Sliding and opening values at discontinuties and water leakage inside They have been evaluated and the total amount of their development serve as Tkyhgah Indicator to estimate Tkyhgah dam safety is used. Well results Lhazkrdn necessary water flow and hydro-mechanical phenomenon in the evaluation discussion Rock mass stability of these dams Tkyhgah shows that Bhnhvy Not simulate water flow, in addition to mechanisms of incorrect predictions Tkyhgah rock mass behavior may results in the opposite direction to safety Dam lead.