南水北调中线工程北京段工程地质勘察工作历经十几年,其间经过一次由明渠改为管道的重大设计方案调整,随着设计方案的调整与建筑物的变化,相继进行了相应设计阶段的地质勘察工作。本文总结了本工程历经十几年的工程地质勘察工作的实践与经验,尤其是对施工中遇到的工程地质问题的处理以及施工开挖对前期勘察成果的验证作了比较详细的介绍。 After more than a decade of geological prospecting of the Beijing section of the mid-route of the South-to-North Water Diversion Project, a major design change from a open channel to a pipeline has been made. With the adjustment of the design scheme and the change of buildings, geological reconnaissance work has been carried out in the corresponding design stages . This article summarizes the practice and experience of this project after more than ten years of engineering geological survey work, especially the handling of engineering geological problems encountered in the construction and the excavation of the excavation on the previous survey results made a more detailed introduction.