Experimental study of rock mass characteristics for Kariba Power Station based on the acoustic and optical logging technology

摘要

In order to estimate the geological and structural rock mass characteristics in the site of upper course cofferdam of water inlet, gate shaft of water inlet and Sd1 district in south bank expansion project of Kariba south power station, Some experimental investigations were done based on the acoustic and optical logging technology. BH4#, BH4-1#, BH5#, BH12# is the identity for each test drill hole, and the parameters of thickness of covering layer, weathering degree of bedrock, fissures development degree, wave velocity of rock mass were got by single hole acoustic wave tests and optical drill hole television recordings.