Interference Effect of Buried Pipeline under Fault Condition of High Speed Railway

With the development of economy, there are more and more cases where high-speed railways and buried steel pipelines in service are approaching, long-distance parallel and crossing. When high-speed railway runs or breaks down, it will cause steady-state AC interference and fault large current interference to the buried pipeline nearby. Through numerical simulation, the fault interference of buried pipelines crossing the high-speed railway under construction was predicted, and the interference influence and its law were analyzed. Based on the predicted personal safety voltage and coating withstand voltage, the degree of interference was evaluated, and mitigation design and effect prediction were made for the situation where the interference did not meet the standard.