某水电站坝基岩体变形模量与波速相关性研究

坝基岩体开挖过程中，需要快速简便的测试方法测得岩体的变形模量和波速，以满足建基岩体验收的需要。在构皮滩水电站坝基开挖工程中，开展了钻孔变形和声波测试，得到建基岩体的变形模量值和声波波速值，建立了二者之间的相关关系．后者已全面应用于大坝建基岩体的验收工作，并证明是可行的有效方法。基岩固结灌浆后只需快速测得岩体的声波波速，就可根据钻孔变形模量与声波波速之间的相关关系，很方便地计算岩体变形模量，为坝基的快速验收提供依据。

Correlation Study on Borehole Deformation Modulus and Wave Velocity of Certain Hydropower Plant''''s Foundation Rock

In order to meet the requirement for acceptance checking of dam foundation during the excavation of rock foundation,fast measurement of rock deformation modulus and acoustic wave velocity of rock mass using some fast and convenient test methods are necessary.In the case of Goupitan Hydropower Plant's dam foundation excavation,borehole deformation modulus and single-hole acoustic wave velocity have been measureed,and their correlation relationship is established.Such process is widely applied to this engineering,it is approved to be a practical and efficient method.According to such correlation relationship,it is convenient to deduce the deformation modulus of rock mass from single-hole wave velocity,thus providing a sound basis for the fast acceptance checking of dam foundation.