Research on the Loading and Reinforcement of Propellant Storage Tanks in Boxcar Transportation

Abstract

Cargo securing methodology is a critical component of railway freight safety analysis, directly impacting the secure transportation of hazardous materials. Currently, the lack of standardized loading protocols for tank propellants—due to their low usage volume—results in inconsistent inspection criteria across railway bureaus, leading to delays in transport schedules. This study addresses this issue by proposing a unified reinforcement framework for 1.6 m³ propellant tanks. Using moment analysis, key parameters such as longitudinal, transverse, and vertical inertia forces, friction forces, overturning coefficients (longitudinal and transverse), stability coefficients, center of gravity deviation, reinforcement strength, cargo placement, and material specifications were systematically calculated and optimized. The results demonstrate that a reinforcement height of 800 mm at both ends and sidewalls of the tank ensures compliance with safety standards. This work provides a foundational guideline for standardizing propellant tank loading and reinforcement in railway transport, thereby improving efficiency and reliability