南水北调中线工程通过的地质单元多，地质情况复杂，其中陶岔-鲁山南渠段的膨胀土及渠道地下水是该渠段的主要工程地质问题。施工地质工作成效对渠道施工的顺利进行及工程问题处理措施的优化具有重要的意义。结合陶岔-鲁山南渠段工程地质特性和地质勘察工作特点，介绍了膨胀土渠道施工地质基本要求、裂隙及滑坡编录的方法和手段、膨胀土膨胀等级现场快速判别的方法，以及针对膨胀土特点在资料收集整理中应注意的事项。其工作经验与方法可为类似工程施工地质工作提供借鉴和参考。%The Middle Route Project of South-to-North Water Diversion is characterized by multiple geological sections and complex geological conditions, especially the expansive soil and underground water are the main geological problems in canal en-gineering. Therefore, the construction geological work has significant meanings for smooth construction and optimization of geolog-ical problems treatment. According to the engineering practice of canal construction of Taocha to Lushan section, we propose bas-ic requirements of construction geological work, geological logging for landslide and fissures, quick discrimination method of ex-pansive degree as well as some notes in data collection and organization for expansive soil.
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