Based on these curves which completed by simple profile instument, we can analyze statistically JRC and shear strength of discontinuity, so that the defects of bad representative caused by less samples can be overcome.

• 用简易纵剖面仪可快速绘制大量结构面表面轮廓曲线,以便进行JRC统计分析和结构面抗剪强度的统计估算,克服了由于样本数少而估算结果代表性差的缺陷;