Based on the practical problems in the geological modeling of rail transit engineering in Chongqing, this study conducts a comparative analysis of the commonly use methods of engineering geological modeling. In view of the special geological conditions such as sand-mudstone interbedding and lens in mountainous cities, the problem of unified stratification of complex strata is solved by means of three-dimensional auxiliary layering and a process of three-dimensional modeling suitable for regular underground running tunnels and deep-buried underground running tunnels in mountainous cities is established.

中文翻译：

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山区城市轨道交通工程地质勘查BIM流程及应用

本研究针对重庆市轨道交通工程地质建模中存在的实际问题，对常用的工程地质建模方法进行了对比分析。针对山区城市砂泥岩互层、透镜体等特殊地质条件，采用三维辅助分层和适合地下规律运行的三维建模过程，解决复杂地层统一分层问题。建立山区城市隧道和深埋地下运行隧道。