Calculation and Analysis of Stray Current Distribution in Urban Rail Transit

With the rapid development of urban rail transit, the stray current problem has many adverse effects on the urban underground environment. Based on the basic principle of stray current distribution in urban rail transit, this paper expounds the mechanism of stray current distribution, as well as many complicated influencing factors and simplified analysis schemes. Finally, based on the improved grounding calculation model, a computational analysis method of the stray current distribution of urban rail transit is proposed. Taking the stray current distribution of Shanghai Rail Transit Line 1 as an example, the distribution law of stray current under different working conditions is compared.