転てつ装置の密着度の管理手法に関する提案

抄録

At maintenance work of switching equipment, fixing force between a tongue rail and a stock rail is managed indirectly by opening force on toe of a tongue rail, because it had been known empirically that these forces are proportional. In our studies, it was confirmed that these forces have proportional relation in many cases of measurements and simulations, however the relation are affected by a closure status between rails and measurement method of opening force. In this paper, we report the test results for investigation that the effects for strains of switching devices and lateral displacement on toe of a tongue rail against fixing force strength, when vehicle passed on a turnout. By the test results, we confirmed that the effect of the strength is small for those parameters in normal fixing force between 1.9kN to 3.0kN. In addition, we propose new standards and methods for maintenance work of fixing force based on this study.