![]() This bund can be constructed on top of a sand filled trench cut down to more competent strata. If the subsoil of the reclamation area consists of soft material having a low shear strength, a stable bund around the perimeter of the area may help to improve the stability of the fill. In general it can be stated that with increasing coarseness of the bund material the slopes can be constructed at steeper angles. ![]() Should the fill not be contained by bunds, large volumes of fill may be deposited outside the actual footprint of the reclamation area.īy constructing bunds and profiling their slopes to their required stable slope angle, it is possible to limit the volume of fill. These slopes will depend on the placement method, the particle size distribution of the fill and the exposure to waves and currents. Natural slope angles of fill after hydraulic placement are usually (very) gentle. Should the site be located in a seismic active region, it may also be required to analyse the response of the bunds to earthquake loading. If required, more complicated finite element analyses should be done. These analyses may include critical slip circle calculations, the verification of the bearing capacity and horizontal equilibrium. ![]() Stability analyses have to be undertaken to investigate the integrity of the bunds during the filling operations. to compartmentalise the reclamation area and.Sometimes bunds are required for operational reasons: ![]()
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