agricultural droughts are droughts that affect the crop production or the ecology of a region. ravar city that is located in margin of desert and the north of kerman province is one of these areas. due to the existence of enough underground water that entrance to desert and high evaporation to improving agricultural and cultivar activities, it needed to study the construction of underground dam...

Introduction The Army Corps of Engineers began the Gas Abatement Study in order to address the problem of gas and its effects on the Snake and Columbia Rivers. One important question is how much gas reductions caused by structural changes at a few or several of the dams would benefit fish survival. A gas sensitivity analysis was done using CRiSP to see how sensitive this model is to changes in ...

This study focuses on dam structures in Nigeria, its availability, features, usefulness, benefits and costs, functionality sustainability. The gap found World Commission Dams (WCD) Report Dam Development being inability to proffer solutions problems encountered by the downstream population was highlighted discussed also. procedure for this research work involved use of journals, books other rel...

Jordan‟s energy balance is largely dominated by combustible fuels. However, the country is well endowed with solar, wind and oil shale resources, in addition to large and small-scale hydropower projects. Based on available data and the current analysis, it is believed that there are at least 6-10 candidate sites in the western part of Jordan and 2-3 locations in the eastern plateau, which could...

Dynamic dam-foundation interaction is great important in the design and safety assessment of dam structures. Two classic boundary conditions, i.e., viscous-spring viscous boundary, are employed to consider radiation damping unbounded rock foundation. The input models seismic excitation derived. accuracy two conditions dynamic analysis foundation verified through using an impulsive load. influen...

Seismic performance evaluations of tailings dams are essential for characterizing the geoenvironmental risks posed by these earthen structures, which should include the geotechnical hazards implied by slope instability failure, free board loss and the potential release of contaminants. The observed damage is more important when liquefaction occurs on the dam body and foundation, which often lea...