Details Details PDF BIBTEX RIS Title Replacing RQD and Discontinuity Spacing with the Modified Blockiness Index in the Rock Mass Rating System Journal title Archives of Mining Sciences Yearbook 2018 Volume vol. 63 Issue No 2 Authors Chen, Qingfa ; Yin, Tingchang ; Niu, Wenjing Keywords Rock Quality Designation ; Discontinuity spacing ; Modified blockiness index ; Substitution ; Rock Mass Rating Divisions of PAS Nauki Techniczne Publisher Committee of Mining PAS Date 2018.06.30 Type Artykuły / Articles Identifier DOI: 10.24425/122452 ; ISSN 0860-7001 Source Archives of Mining Sciences; 2018; vol. 63; No 2 <div class="test"></div>