拜读杨新安、黄宏伟两位先生在《岩土工程学报》１９９８年第３期上发表的“围岩变形内比及一种新的巷道围岩分类法”［１］一文后，深受启发，现就该文所提出的深表比用于围岩分类问题与作者作如下讨论。（１）一般来说，巷道围岩变形的程度从表面向内部是逐渐降低的，作... After reading Yang Xinan, Huang Hongwei two Gentlemen in “Geotechnical Engineering” in 1998 the third published in the “surrounding rock deformation ratio and a new roadway surrounding rock classification” [1], inspired by , The following discussion about the deepness ratio proposed by this paper and the authors for the classification of surrounding rock is given. (1) In general, the degree of surrounding rock deformation from the surface to the interior is gradually reduced for ...