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以某地下水封洞库工程为例,在分析其工程地质特征的基础上,以详细工程地质勘察的资料为基础,通过BQ和RMR岩体质量分级方法,对地下水封洞库区的钻孔进行岩体质量分级;对比了两种分级方法对钻孔岩体质量分级的差异,并研究了库址区岩体质量的竖向分布规律;通过洞库影响深度范围内岩体质量的平面分布的统计,研究了深度岩体质量的平面分布规律,从而获得了洞库区的岩体质量空间分布规律。
Taking a groundwater sealing cavern project as an example, based on the analysis of its engineering geological features and on the basis of detailed engineering geological survey data, the borehole of the groundwater caverns reservoir area was subjected to the BQ and RMR rock mass grading methods The quality of rock mass is graded. The differences of two grading methods are compared with the grading of rock mass quality, and the vertical distribution of rock mass quality in reservoir area is studied. The distribution of rock mass mass distribution in the depth range Statistics and study of the plane distribution of the quality of deep rock mass, so as to obtain the spatial distribution of rock mass quality in the reservoir area.