华中科技大学学报（自然科学版）2026，Vol.54Issue(8)：20-30,11.DOI:10.13245/j.hust.250575
深部金属矿山充填开采高阶段矿柱岩体力学参数确定方法
Methodology for determining rock mass mechanical parameters of high-level pillars in deep underground metal mines using cut-and-fill method
摘要
Abstract
The traditional Hoek-Brown strength criterion was improved by modifying the calculation model of the geological strength index(GSId)after blast-induced damage.The improved Hoek-Brown strength criterion was applied to a deep high-level cut-and-fill metal mine in Northeastern China.The research results indicate that considering only the disturbance effect of excavation blasting on the geological strength index of high-level pillars effectively avoids the accumulation of errors that may arise from considering both GSId and the disturbance factor(D),and also avoids the influence of subjective factors in the determination of D.The modified GSId model better reflects the structural characteristics of high-level pillar rock masses in engineering practice,and the improved Hoek-Brown criterion provides accurate mechanical parameters for stability evaluation.The calculated mechanical parameters of high-level pillar rock masses are within the reasonable range obtained by the engineering BQ value method,and numerical simulation verifies the rationality of the improved Hoek-Brown criterion for such calculations in deep metal mine backfill mining.The research results provide a theoretical basis for the stability evaluation of high-level pillars in deep metal mine backfill mining.关键词
深部金属矿山/高阶段矿柱/Hoek-Brown准则/扰动的地质强度指标/岩体力学参数Key words
deep underground metal mine/high-level pillars/Hoek-Brown criterion/disturbed geological strength index/rock mass mechanical parameters分类
建筑与水利引用本文复制引用
吕辉,夏开宗,刘秀敏,司志伟,王田龙,郑志..深部金属矿山充填开采高阶段矿柱岩体力学参数确定方法[J].华中科技大学学报（自然科学版）,2026,54(8):20-30,11.基金项目
国家自然科学基金面上资助项目(42377175) （42377175）
中国科学院青年创新促进会会员资助项目(2023346). （2023346）
