A method with its corresponding apparatus for tamping railway track gravel, with a machine provided with a chassis mounted on wheels that comprises a first roller head and a second roller head disposed behind said first roller head to move with respect to this, whose the method is characterized in that the operation of said heads is carried out in such a sequence that while the first head carries out its tamping cycle, the second head moves on the chassis towards the first head and while the second head moves its cycle of tamping, the first head travels along the track away from the second head, overlapping the tamping cycles with a phase difference of substantially 180º. (Machine-translation by Google Translate, not legally binding)
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