摘要
采用相关分析法，对座落在花岗岩体上的三斗坪坝址区部分钻孔压水试验的单位吸水量与压水试验孔段的岩心获得率、岩体质量指标、声波指标进行分析，得到它们的相关关系。根据已知的岩心获得率、岩体质量指标、声波指标，可以推求未知的单位吸水量。这一方法可以校核压水试验成果的正确性，推断无压水试验资料地段岩体的单位吸水量，拟定防渗设施的设置深度。
elationships between the unit absorption in the packer permeability test and core recovery percentage(CRP)in the tested part,rock mass quality index(RQD),and sonic index(Vp)Are obtained for the granite mass located in Sandoupeng dam foundation by regression analysis.In terms of given CRP,RQD and Vp,the unit absorption can be estimated.This method can be used to check the results of packer permeability test,estimate unit absorption in some boreholes where packer permeability tests have not been operated,and determine the depth of impervious elements.
出处
《河海大学学报（自然科学版）》
CAS
CSCD
1994年第4期91-94,共4页
Journal of Hohai University(Natural Sciences)
关键词
花岗岩
岩体
单位吸水量
质量指标
Rock mass Unit absorption Core recovery percentage Rock mass quality index Sonicindex
