结合当前非工程因素引发的高速铁路线路沉降问题相关案例，分析了线路沉降超标产生的原因及其危害，归纳了相关问题类型，提出了解决问题的相关建议和意见，希冀有助于类似问题的解决。

Combined with the cases of the track settlement led by non- engineering factor，the paper analyzed the reason and its hazard to the high speed railway track which are over the design and code standard，then concluded the correlation question type and gave out the suggestion and opinion，hoping to help solve the similar questions.