Use of highly drained eventually contaminated fine sediments separated thereof, in the form of building elements for the under water dry filling of waters, especially of harbor basins

摘要

The present invention relates to the use of highly dewatered, possibly contaminated sediments and/or possibly contaminated fine sediments (silt) separated off therefrom, in the form of constructional units for underwater filling-in of water bodies to be drained, in particular harbour basins. The constructional elements produced according to the invention comprise a highly compressed, highly dewatered, homogeneous shaped body of possibly contaminated sediments and/or possibly contaminated fine sediments separated off therefrom which is enclosed on all sides by a deformable water-permeable packaging casing. The constructional elements may be transported and sunk in the water without releasing pollutants. After they have been laid in the water bodies to be drained or filled in, the constructional elements, under load deformation, form a monolithic whole having relatively high strength in which the pollutants are incorporated so as to be immobile. With proper installation, the creation of buidling land from water bodies to be drained (land reclamation) is ensured with simultaneous environmentally compatible land filling of the possibly contaminated sediment or the possibly contaminated fine sediment separated off therefrom.