岩溶属于不良地质,产生地质灾害的可能性极高,在工程实践中需要认真对待,可溶岩是产生岩溶最基本的内在条件,但两者概念不同,要区别开来,避免引起认识上的错误和不必要的恐惧。将针对铁路修建的不同勘察阶段和不同工程类型,阐明需要解决的不同岩溶工程地质问题,并对可溶岩地区的铁路工程地质选线提出自己的认识。 Karst is a bad geology, the possibility of geological disasters is extremely high, in engineering practice need to be taken seriously, soluble rock is the most basic internal conditions of karst, but the two concepts are different, to distinguish, to avoid causing cognitive errors And unnecessary fear. According to different survey stages and different types of projects for railway construction, the different geological problems of karst engineering to be solved will be clarified and their own understanding of railway engineering geological alignment will be put forward.