Process for the neutralisation of preferably forest soils by means of a drive-in probe with injection holes made on all sides

摘要

In order to neutralise the high-acidification of forest soils, such as is caused by the so-called acid rain, it is proposed according to the invention that, by means of drive-in probes coupled by means of feed hoses and a proportioning pump to a tanker in which a liquid mixed with appropriate neutralising agents is available, the desired injection liquid be pumped into the forest soil without drilling after the probe has been driven in. The device consists of a drive-in probe containing a rigid tube (14) which preferably consists of a high-grade spring steel not experiencing deformation under hammer blows and which is connected to an inflation chamber (12) provided with orifices (9) opening out from the inner tube (14), according to the invention these orifices (9) having larger throughflow cross-sections than the porous or hole-shaped orifices (10) of the inflation chamber after inflation, and this flat probe possessing as a head an anvil (8) and as grip-like extensions the filling valve (16) and the vent valve (15) and being equipped with a preferably exchangeable driving tip (11) which is of a diameter equal to or larger than that of the injection probe with the inflation chamber deflated. IMAGE