%0 Journal Article
%A ZHOU Li-ming
%A WANG Fa-gang
%A XIAO Guo-qiang
%A FU Dai-guang
%A LUO Rong
%T Experimental Investigations of Rock Mass for South Bank Expansion Project of Kariba Power Station by Comprehensive Logging
%D 2016
%R 10.11988/ckyyb.20160174
%J Journal of Yangtze River Scientific Research Institute
%P 109-112
%V 33
%N 12
%X Well logging technology has been proved to be a reliable method to researching the rock mass structure and quality in  hydropower project. In order to estimate the geological conditions and structural characteristics of rock mass, we took the south bank expansion project of Kariba power station as an example and carried  out rock mass test at  position  Sd01, upstream cofferdam of water inlet and gate shaft of water inlet. By adopting acoustic and optical logging technology, we conducted  in-site test and obtained the  thickness of covering layer, weathering degree of bedrock, fissures development degree, and acoustic velocity of rock mass. The experimental results show that the water level at  these places is 11.7, 13.1, 14.1-16.5 m,respectively, and average wave velocity is  3 200, 3 500, 2 000 m/s ,respectively,and  the thickness of the covering layer is 21, 26 m, and above 30 m. Furthermore, the rock mass at Sd01 site and the gate shaft is relatively complete, with 12 and 11  fractures,whereas the rock mass of upstream cofferdam is broken and strongly weathered.
%U http://ckyyb.crsri.cn/EN/10.11988/ckyyb.20160174