三峡二期工程固结灌浆设计中主要技术问题

三峡工程建基岩体工程地质与水文地质条件优良,基础处理设计中,一方面应考虑如何利用优良的地质条件,尽量节约工程量和投资;另一方面对存在的工程地质问题,应进行认真的分析与研究,确保工程安全和正常运行.根据开挖揭露的实际工程地质条件,对坝基出露的主要工程地质问题采取了相应的固结灌浆加固处理措施,为三峡后期工程及其它工程解决固结灌浆设计中主要技术问题提供了值得借鉴的方法.

Major technical issues in consolidation grouting design of Stage Ⅱ works of TGP

The foundation rock of the Three Gorges Project has excellent condition in terms of its engineering geology and hydrologic geology. In the project's foundation treatment, on the one hand, how to make use of the excellent geologic condition should be taken into consideration to reduce the amount of works and save the investment; on the other hand, the existing engineering geology problems should be conscientiously analysed and investigated to ensure the project's safe and normal operation. According to the actual engineering geology condition shown in excavation, corresponding treatment measures by consolidation grouting were adopted for solving the main engineering geology problems exposed in dam foundation, which provides a reference method for solving main technical problems on design of consolidation grouting for the later-stage works of the Three Gorges Project and for other projects.