Managing Rail Integrity in Heavy Axle Load Regime in Mixed Traffic Scenario: Experience of Indian Railway

摘要

The paper outlines Indian Railway's experience in running heavy axle loads in a mixed traffic scenario. Results of field studies for assessment of key parameters influencing track stresses namely track modulus and dynamic augment factors for present day track structure and rolling stocks and track forces imparted by upgraded rolling stocks are presented. Specific studies pertaining to defect generation in rails and welds suggest that Indian Railway (IR) has so far been able to increase axle loads without compromising safety and integrity of rails with slew of preventive measures and a highly effective monitoring regime. The monitoring has provided valuable insight in to challenges faced by IR in sustaining the operation. Actions initiated to effectively meet these challenges are also covered.