摘要
针对高倾角裂隙岩体的特点,以及渗透张量计算参数统计方法上存在的不足,利用钻孔电视成像技术进行裂隙统计,建立裂隙介质模型,并提出利用针对性更强的斜孔压水试验成果来修正渗透张量的新方法。运用该方法对某水利工程坝址区裂隙岩体渗透张量进行了实例测量计算,结果表明,相对于传统的垂直孔压水试验,新方法更具说服力和准确性,具有较强的工程实用价值。
In view of the characteristics of fractured rock mass with high dip - angles and the defects in statistics for calculation parameters of permeability tensor, the television imaging log technique is applied for fracture statistics. The author establishes the fractured medium model, and puts forward a new method of modifying the permeability tensor by inclined water pressure test. The measurement and calculation are conducted by using the new method for the dam site of a hydropower project. The results indi- cate that the new method is more convincing and accurate with a high engineering value compared with the traditional vertical wa- ter pressure test.
出处
《人民长江》
北大核心
2014年第1期53-56,共4页
Yangtze River
关键词
斜孔压水试验
钻孔成像
渗透张量
高倾角裂隙岩体
inclined water pressure test
borehole imaging
permeability tensor
fractured rock mass with high dip -angles
