Patent · US Active

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

US9810614B2 · kind B2 · utility

1Cited by

7References

23Claims

0Family size

Assignees

SNCF RESEAU · FR
UNIVERSITE MONTPELLIER 2 SCIENCES ET TECHNIQUES · FR
UNIVERSITÉBLAISE PASCAL- CLERMONT II · FR
LE CENTRE NATIONAL DE LARECHERCHE SCIENTIFIQUE · FR

Inventors

Gilles Saussine · Issy-les-Moulineaux, FR
Juan Carlos Quezada · Malakoff, FR
Pierre Breul · Corent, FR
Franck Radjai · Montpellier, FR

Key dates

Filing date	Oct 28, 2013
Grant date	Nov 7, 2017
Priority date	—
Expiry date	Mar 15, 2034

Classification

Technology area (CPC G)Physics
CPC primaryG01N2203/0082
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.