TRB Pubsindex
Text Size:
x

« Prev Next »

Return to Results | New Search

Bookmark and Share

Title:

In-situ investigation of the behaviour of a French conventional railway platform
Cover of In-situ investigation of the behaviour of a French conventional railway platform

Accession Number:

01551270

Record Type:

Component

Availability:

Transportation Research Board Business Office

500 Fifth Street, NW
Washington, DC 20001 United States

Abstract:

Concerning the 30,000 km French conventional railway network (94% of the entire network), the speed is currently limited to 220 km/h as maximum, whereas for the 1,800 km high speed lines, the speed can go up to 250 - 320 km/h. Nowadays, there is a growing need to reduce the travel time and improve the service by increasing the speed limits on the conventional network. This paper aims to study the influence of train speed on the mechanical behaviour of an experimental site representative of the French conventional network. Emphasis is put on the behaviour of the interlayer soil. The selected experimentation site is located near Vierzon (Centre/FR). More than 40 sensors, including accelerometers and soil pressure gauges, have been installed. A testing campaign has been performed with a fully instrumented experimental intercity train composed of a locomotive and seven coaches running at different speeds (60 – 100 – 140 – 160 – 180 and 200 km/h). This campaign has revealed that when the train speed is increased, the loads transmitted to the platform increase. Moreover, these loads are amplified at the depth of interlayer soil. Indeed, the upgrade of limit speed of a line leads an increase of the vertical soil pressure and the vertical acceleration in the soil. The acceleration data obtained from the accelerometers will be used to determine the maximum vertical strain induced in the interlayer soil for different train speeds.

Supplemental Notes:

Alternate title: In Situ Investigation of Behavior of French Conventional Railway Platform. This paper was sponsored by TRB committee AFS20 Soils and Rock Instrumentation.

Monograph Accession #:

01550057

Report/Paper Numbers:

15-1076

Language:

English

Corporate Authors:

Transportation Research Board

500 Fifth Street, NW
Washington, DC 20001 United States

Authors:

Lamas-Lopez, Francisco
Cui, Yu-Jun
Costa d'Aguiar, Sofia
Calon, Nicolas
Robinet, Alain
Canou, Jean
Dupla, Jean-Claude
Tang, Anh-Minh

Pagination:

16p

Publication Date:

2015

Conference:

Transportation Research Board 94th Annual Meeting

Location: Washington DC, United States
Date: 2015-1-11 to 2015-1-15
Sponsors: Transportation Research Board

Media Type:

Digital/other

Features:

Figures; Photos; References; Tables

Geographic Terms:

France

Subject Areas:

Geotechnology; Railroads; I42: Soil Mechanics

Source Data:

Transportation Research Board Annual Meeting 2015 Paper #15-1076

Files:

PRP, TRIS, TRB, ATRI

Created Date:

Dec 30 2014 12:26PM