| 发明名称 |
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 |
| 摘要 |
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.;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. |
| 申请公布号 |
US2015293000(A1) |
申请公布日期 |
2015.10.15 |
| 申请号 |
US201314439544 |
申请日期 |
2013.10.28 |
| 申请人 |
SOCIETE NATIONALE DES CHEMINS DE FER FRANCAIS SNCF ;UNIVERSITE DE MONTPELLIER 2 SCIENCES ET TECHNIQUES ;UNIVERSITE BLAISE PASCAL - CLERMONT II ;LE CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (CNRS) |
发明人 |
Saussine Gilles;Quezada Juan Carlos;Breul Pierre;Radjai Franck |
| 分类号 |
G01N3/48;G01N33/42 |
主分类号 |
G01N3/48 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A method for evaluating the compactness of a layer of railroad ballast near a railroad tie, comprising:
at least one step of taking at least two measurements of penetration resistance (Qd) of a ballast near a same railroad tie, and a step of calculating a mean value (Qdmean) of the at least two measurements of penetration resistance (Qd). |
| 地址 |
Saint Denis FR |
