Trestle-less hydraulic filling

TRESTLE-LESS HYDRAULIC FILLING (EN: trestleless hydraulic filling; DE: gerustfreies Bodenanspulen; FR: remblayage hydraulique sans estacade; ES: relleno hidraulico sin contencion; RU: безэстакадный намыв) is the method for the hydraulic filling of the rock at the storage depots, within the hydraulic waste dumps and tailing storage facilities, in case of which the filling pipeline is laid immediately onto the surface of the rock, which is being filled, or onto the dams within the limits of the tier for the filling.

In case of the trestle-less hydraulic filling, the slurry is discharged in the concentrated manner from the end of the pipeline, which is usually assembled of the pipes with quick-join funnel-shaped connections with the help of the crane, which is located on the surface, which has been filled. The technology of the trestle-less hydraulic filling has been developed during the 1952 within the USSR (V. A. Platonov, and others), and is widely used both within the mining-extracting productive industry, and also within the large hydro-technical construction works, for the filling of the earthwork built structures, the density of the filling of which ensures the location of the suitable machinery, pipelines, and servicing personnel at the site, which has been filled.

The trestle-less hydraulic filling is conducted with the layers with the thickness of 0.15-1 metres, sometimes (at the hydraulic waste dumps) up to 1.5 metres. The usage of the trestle-less hydraulic filling ensures the decreasing of the labour and cost of the waste dumping works, the increasing of the time for the reception of the slurry at the hydraulic waste dumps and at the tailing storage facilities, the decreasing of the consumption of the metal and timber.