Method for evaluating the compactness of a layer of railway line ballast, device for implementing same and method for predicting the compaction of said layer of ballast

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United States of America Patent

PATENT NO 9810614
SERIAL NO

14439544

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Abstract

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The method for evaluating the compactness of a layer of railroad ballast near a railroad tie includes at least one step of taking at least two measurements (11,11a,11b) of the penetration resistance (Qd) of the ballast (13) near one and the same railroad tie (10), and a step of calculating the mean value (Qdmean) of these measurements (11,11a,11b) of penetration resistance (Qd). Also provided are a device for implementing such a method and a method for predicting the settlement of the ballast of a railroad track including a step of evaluating the compactness of a ballast near a railroad tie.

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Patent Owner(s)

  • LE CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (CNRS);SNCF RESEAU;SOCIETE NATIONALE DES CHEMINS DE FER FRANÇAIS SNCF;UNIVERSITE BLAISE PASCAL - CLERMONT II;UNIVERSITE DE MONTPELLIER 2 SCIENCES ET TECHNIQUES

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Breul, Pierre Corent, FR 2 3
Quezada, Juan Carlos Malakoff, FR 2 1
Radjai, Franck Montpellier, FR 1 1
Saussine, Gilles Issy les Moulineaux, FR 1 1

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