基于超声波钻孔电视的深部岩体结构面特征研究

Study on structural plane characteristics of deep rock mass based on acoustic borehole TV

深部岩体结构面特征是岩体质量评价的基础数据之一。利用超声波钻孔电视对甘肃北山芨芨槽花岗岩体的BS15#、BS16#钻孔进行测量,获得了深部岩体结构面的数量、密度、产状、优势方向组和结构面宽度等数据,并与岩心编录结果进行对比分析。分析结果表明超声波钻孔电视在深部岩体结构面研究中具有良好效果,但也存在一些不足,需要结合其他资料综合分析才能更好地发挥作用。

Deep rock mass structural plane characteristics are one of the basic data for evaluating the quality of rock mass. Based on acoustic borehole TV, the structural plane quantity, density, attitude, dominant set, structural plane aperture of deep rock mass in boreholes BS15^# and BS16^# located in Beishan granite rock mass of Gansu Province have been calculated and compared with the results of geological documentation of drill core. The results indicate that acoustic borehole TV has the effect in study on characteristics of structural plane. But as a kind of technique of geophysical logging, the acoustic borehole TV has certain defect, and need to combine with the analysis of the other geological materials in applications.