To Lich River (TLR) system receives wastewaters from a population of nearly two million people and 100 manufactories of five industrial zones in inner city Hanoi, Vietnam. To improve quality of TLR, the embankment was carried out in 1998 and finished in 2002, resulted in width of 20 45 m, depth of 2 4 m, and maximum water flow capacity of 30 m/s. Water and sediment quality indices based on heav...

Dam breach width significantly influences peak breach outflow, inundation levels, and flood arrival time, but uncertainties inherent in the prediction of its value for embankment dams make its accurate estimation a challenging task in dam risk assessments. The key focus of this paper is to provide a fuzzy logic (FL) model for estimating the average breach width of embankment dams as an alternat...

Strong earthquake excitation usually induces large shear strains to earth structures resulting to the generation of low shear-strength surfaces, and subsequently, to sliding along these surfaces. The generation of permanent deformations is a phenomenon commonly examined through the well-known procedure of sliding block proposed by Newmark. Nevertheless, many types of earth structures include pr...

Displacements induced by earthquake can be very large and result in severe damage to earth and earth supported structures including embankment dams, road embankments, excavations and retaining walls. It is important, therefore, to be able to predict such displacements. In this paper, a new approach to prediction of earthquake induced displacements of slopes (EIDS) using hybrid support vector re...

some heavy clay soils of the A6 and A7 types with tar emul­ sions and cutbacks on an experimental subgrade stabilization during the summer of 1937, we found that this type of soil stabilization presents some very different problems from those of soil-aggregate stabilization. Soil-cement stabilization, as described by Mr. Myers, also presents some interesting problems. According to its claims, t...

In dam construction stages when an earth embankment has retained a reservoir with constant water surface elevation for long time, seepage conditions within the will be reach steady state. If it is necessary to drain quickly, pore-water pressures in may remain relatively high while stabling effect of reservoir's weight along upstream (U/S) side removed. This process referring as "Rapid Drawdown"...