Research on the Application of Single Hole Acoustic Testing Method in Dam Foundation Detection of Shangmiao Reservoir in Wengyuan County
The quality inspection results of rock foundation in hydraulic engineering dams have a profound impact on the quality and safety of dams.To explore the development of foundation cracks and rock integrity of Shangmiao Reservoir Dam in Wengyuan County,this paper provides a detailed introduction to the calculation principle,operation process,and applicable scope of the single hole acoustic testing method.It analyzed the possible difficulties and corresponding solutions in using this method to detect the integrity of engineering rock masses,and conducted detection analysis on 6 boreholes.The results show that the rock mass of ZK-108 in 6 boreholes is fragmented,the rock masses of ZK-360 and ZK-366 are relatively fragmented,and the rock mass integrity of ZK-399 is poor.It indicates that the bearing capacity of the bedrock of the reservoir dam is weak,and local curtain grouting is needed for reinforcement treatment,providing a method and empirical reference for rock mass testing in other projects.
rock mass integritysingle hole acoustic testing methoddam foundationcurtain grouting
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