Withdrawal Resistance of Cut Track Spikes in Wood Railroad Crossties


This report presents the procedure and results from the tests or withdrawal resistance of cut track spikes driven into wood crossties. The tests were performed using conventional track spikes and chemically treated wood crossties, both solid and prebored. Five different, by common, crosstie materials were used, which included three hardwoods and two softwoods. Each test sample consisted of sixteen spikes, and a total of 192 spikes were tested. The measured variables included the driving force, withdrawal force and spike displacement.
All of the tests were conducted at the Track Research Laboratory of the Association of American Railroad Research and Test Department in Chicago, Illinois.