Characterization of Track Substructure Using Falling Weight Deflectometer and Automatic Ballast Sampling: Research Results

Maal, Luis; Carr, Gary; United States. Federal Railroad Administration. Office of Research and Development; United States. Federal Railroad Administration. Office of Railroad Policy and Development

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Characterization of Track Substructure Using Falling Weight Deflectometer and Automatic Ballast Sampling: Research Results

2016-06-15
By Maal, Luis ; Carr, Gary

[PDF-617.23 KB]

English

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Creators:

Maal, Luis ; Carr, Gary

Maal, Luis ; Carr, Gary Less -
Corporate Creators:

United States. Federal Railroad Administration. Office of Research and Development ; United States. Federal Railroad Administration. Office of Railroad Policy and Development

United States. Federal Railroad Administration. Office of Research and Development ; United States. Federal Railroad Administration. Office of Railroad Policy and Development Less -
Corporate Contributors:

United States. Department of Transportation
Subject/TRT Terms:

[+]

Ballast (Railroads) Falling Weight Deflectometers Railroad Tracks Rails Raleigh Wave Safety And Human Factors Track Substructure Characterization
Publication/ Report Number:

RR 16-16
Resource Type:

Brief
Geographical Coverage:

United States
Corporate Publisher:

United States. Federal Railroad Administration. Office of Railroad Policy and Development
Abstract:

Transportation Technology Center, Inc. (TTCI) tested a falling weight deflectometer (FWD) diagnostic apparatus and verified it using automatic ballast sampling (ABS). The company examined the ability of the apparatus to measure track substructure characteristics by determining shear wave speed and deflection signatures for various substructure soil types and conditions. Since the tests showed good results and the FWD’s signal information was correlated to the ABS depth data, potentially identifying problem areas, so remediation could be determined for a particular area of track.
Format:

PDF
Collection(s):

Federal Railroad Administration
Main Document Checksum:

[+]

urn:sha256:30d6212517d2e7b32312c098fcfda8bd4e08533db5c142bece3a84ce310cf330
Download URL:

https://rosap.ntl.bts.gov/view/dot/39712/dot_39712_DS1.pdf
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Characterization of Track Substructure Using Falling Weight Deflectometer and Automatic Ballast Sampling: Research Results

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