基于广义Hoek-Brown准则的某矿山边坡岩体力学参数取值研究与应用

现代矿业 ›› 2025, Vol. 41 ›› Issue (12): 152-156.

基于广义Hoek-Brown准则的某矿山边坡岩体力学参数取值研究与应用

方嵩根^1，2，3陈国强^1，2，3郭吉葵^1，2，3吴伟^1，2，3 胡思汉^1，2，3

1. 中钢集团马鞍山矿山研究总院股份有限公司；2. 金属矿山开采安全与灾害防治全国重点实验室； 3. 华唯金属矿产资源高效循环利用国家工程研究中心有限公司

出版日期:2025-12-25 发布日期:2026-01-26

Research and Application on the Values of Mechanical Parameters of Rock Mass in a Mine Slope Based on the Generalized Hoek-Brown Criterion

1. Sinosteel Maanshan General Institute of Mining Research Co.，Ltd.; 2. State key Laboratory of Metal Mining Safety and Disaster Prevention and Control; 3. Huawei National Engineering Research Center for Ef‐ ficient Recycling of Metallic Mineral Resources Co.，Ltd.

Online:2025-12-25 Published:2026-01-26

摘要/Abstract

摘要： 岩体力学参数的合理选取是露天矿山边坡稳定性分析的核心问题。以某露天矿山为对象，针对传统参数取值方法难以反映岩体非线性强度特征的问题，选择基于广义 Hoek-Brown 准则的岩体参数折减方法，通过室内岩石力学试验数据折减，获取完整岩石力学参数。再结合地质强度指标和爆破扰动因子，构建了考虑岩体非均质性和强度非线性的参数折减模型。在此基础上，系统对比分析了完整 Hoek-Diederichs、修正 Hoek-Diederichs、早期 Hoek 及简化 Hoek-Died‐ erichs 公式 4 类变形模量计算方法的适用性。研究表明：广义 Hoek-Brown 准则将爆破扰动与岩体结构特征耦合至参数折减过程，能够有效反映硬质岩体的非均质性和强度非线性特征，显著提升了硬质岩体参数的工程适用性。在变形模量计算中，完整 Hoek-Diederichs 公式计算结果精度最优，适用于边坡稳定性定量分析，而修正的 Hoek-Diederichs 公式可作为参数缺失条件下的替代方案，成果为高强度扰动硬岩边坡的力学参数选取提供了方法支撑，而简化 Hoek-Diederichs 公式仅适用于快速的趋势估算。研究为高强度扰动硬岩边坡的力学参数选取提供了理论依据和技术支撑，对类似矿山工程具有重要参考价值。

关键词: 广义Hoek-Brown准则, 强度折减, 变形模量, 岩体力学参数

Abstract: The reasonable selection of rock mass mechanical parameters is the core issue in the sta‐ bility analysis of open-pit mine slopes. Taking an open-pit mine as the object，aiming at the problem that the traditional parameter value selection method is difficult to reflect the nonlinear strength characteristics of the rock mass，the rock mass parameter reduction method based on the generalized Hoek-Brown criteri‐ on is selected. Through the reduction of indoor rock mechanics test data，the complete rock mechanics pa‐ rameters are obtained. Combining geological strength indicators and blasting disturbance factors，a parame‐ ter reduction model considering the heterogeneity of rock mass and the nonlinearity of strength was con‐ structed. On this basis，the applicability of four types of deformation modulus calculation methods，namely the complete Hoek-Diederichs，the modified Hoek-Diederichs，the early Hoek and the simplified Hoek�Diederichs formulas，was systematically compared and analyzed. Research shows that the generalized Hoek-Brown criterion couples blasting disturbances with the structural characteristics of rock mass into the parameter reduction process，which can effectively reflect the heterogeneity and strength nonlinear charac‐teristics of hard rock mass，and significantly improve the engineering applicability of the parameters of hard rock mass. In the calculation of deformation modulus，the complete Hoek-Diederichs formula has the best calculation accuracy and is suitable for quantitative analysis of slope stability. The modified Hoek�Diederichs formula can be used as an alternative solution under the condition of missing parameters. The results provide methodological support for the selection of mechanical parameters of high-intensity dis‐ turbed hard rock slopes. The simplified Hoek-Diederichs formula is only applicable to rapid trend estima‐ tion. The research provides a theoretical basis and technical support for the selection of mechanical param‐ eters of high-intensity disturbed hard rock slopes，and has important reference value for similar mining projects.

Key words: generalized Hoek-Brown criterion, strength reduction, deformation modulus, rock mass mechanics parameters

方嵩根, 陈国强, 郭吉葵, 吴伟, 胡思汉. 基于广义Hoek-Brown准则的某矿山边坡岩体力学参数取值研究与应用[J]. 现代矿业, 2025, 41(12): 152-156.

FANG Songgen, CHEN Guoqiang, GUO Jikui, WU Wei, HU Sihan, . Research and Application on the Values of Mechanical Parameters of Rock Mass in a Mine Slope Based on the Generalized Hoek-Brown Criterion[J]. Modern Mining, 2025, 41(12): 152-156.

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