苏丹大坝勘察岩体压水试验存在问题浅析及试验成果分析研究

Analysis and study of problems and results in Lugeon test in dam investigation project in Sudan

在大坝地质勘察中,压水试验是检测岩体渗透性的关键实验。随着科技的发展,利用电脑和人工智能仪器进行压水试验的新方法日益成熟。本文通过介绍新型压水试验仪器,理论计算和操作过程中存在的问题及解决方法,同时结合苏丹Dagash大坝032号钻孔岩体的压水试验结果,分析研究了吕荣值和岩体完整度之间的关系,总结了利用吕荣值判断岩体裂隙发育情况的经验,为类似工程提供一定的参考。

Lugeon test is the key method testing the the development of science and technology, the new rock permeability in dam investigation projects. With method that using computer and artificial intelligent apparatus for Lugeon test is increasingly maturity. This article introduces the new Lugeon test apparatus, theory and problems happening during operation as well as solutions thereof. In the meanwhile, using the Lugeon test data of borehole 032 in Dagash dam investigations project in Sudan as example, this article analyses and researches the relationship between Lugeon values and soundness of rock, summarizes the experiences that judging the joints by Lugeon value, and provides some references for similar project in future.