Showing papers on "Pervious concrete published in 1985"

Draining of sheet-pile walls

Abstract: The invention relates to the draining of steel sheet-pile walls for removing the excess water pressure on the shore side, in particular in quay installations. The aim and object of the invention is to create a drainage structure which is installed during the placing of the sheet-pile wall without an additional subsequent operation. The essence of the invention consists in cantilever plates and retaining plates being welded into the sheet-pile wall as a holding means for pervious concrete elements with internal porosity of aggregate particles or prefabricated, geotextile-encased gravel filters. After the respective pile-driving unit of the sheet-pile wall has been driven so deep that this holding means reaches the pile-driving plane, the pervious concrete elements are inserted into the holding means, and with the continuation of the pile driving the drainage structure is taken to the planned depth and is thus ready-installed. Fig. 1 is regarded as the key drawing.