PROCEDE ET INSTALLATION POUR LA STABILISATION DE L'INFRASTRUCTURE DESLITS DE BALLAST DES VOIES FERREES

摘要

The sub-grade of a railroad ballast bed is stablized by depositing sand on the bed, removing the sand and ballast in admixture with an excavating bucket conveyor until the sub-grade has been exposed, the sand and ballast are separated from each other on a screen which receives the admixture, and two endless conveyors mounted below the screen convey the separated sand and ballast to the exposed sub-grade to deposit the separated sand thereat at a point ahead of a succeeding point where the separated ballast is deposited, thus depositing the ballast on a layer of sand interposed between the sub-grade and the ballast.