高速铁路故障状态对埋地管道的干扰影响

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

随着经济的发展,高速铁路与在役埋地钢质管道临近、长距离平行和交叉的情况越来越多,高速铁路在运行和故障时会对附近的埋地管道产生稳态交流干扰和故障大电流干扰。通过数值模拟方式,预测了与在建高速铁路交叉的埋地管道受到的故障干扰,分析了干扰影响及其规律,基于预测的人身安全电压和涂层耐受电压评价了干扰程度,并针对干扰不达标的情况进行了缓解设计和效果预测。

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.