Journal
FRATTURA ED INTEGRITA STRUTTURALE
Volume -, Issue 30, Pages 578-592Publisher
GRUPPO ITALIANO FRATTURA
DOI: 10.3221/IGF-ESIS.30.69
Keywords
Ballast resistance; Track stability; Full scale test; CWR track; Railway track; Test system
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In the present paper, testing methods currently adopted to measure the in service ballast resistance are synthetically reviewed to identify the main sources of uncertainty influencing the test loads and to define an experimental methodology allowing the optimal control of the testing parameters without the introduction of spurious or parasitic actions on the track sample. An alternative testing system, which allows applying on a fullscale sample of a railway track testing loads very close the real ones, is presented. Of the new system, both the ways of use for measuring the transversal and axial ballast strength, the general procedure to carry out the experimentation and its application to a real scenario are described, highlighting its main advantages in terms both of modalities for applying the loads and of testing parameter control.
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