岩体性质与最大水平应力的关系：以应力解除法测量数据为例

李鹏; 蔡美峰; 苗胜军; 李远; 王宇

doi:10.1007/s12613-024-2944-2

Volume 32 Issue 1

Jan. 2025

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文章导航 > 矿物冶金与材料学报（英文） > 2025 > 32(1): 39-48

Peng Li, Meifeng Cai, Shengjun Miao, Yuan Li, and Yu Wang, Correlation between the rock mass properties and maximum horizontal stress: A case study of overcoring stress measurements, Int. J. Miner. Metall. Mater., 32(2025), No. 1, pp. 39-48. https://doi.org/10.1007/s12613-024-2944-2

Cite this article as:

Peng Li, Meifeng Cai, Shengjun Miao, Yuan Li, and Yu Wang, Correlation between the rock mass properties and maximum horizontal stress: A case study of overcoring stress measurements, Int. J. Miner. Metall. Mater., 32(2025), No. 1, pp. 39-48. https://doi.org/10.1007/s12613-024-2944-2

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研究论文

岩体性质与最大水平应力的关系：以应力解除法测量数据为例

1)
北京科技大学金属矿山高效开采与安全教育部重点实验室, 北京 100083, 中国
2)
中国矿业大学煤炭资源与安全开采国家重点实验室, 徐州 221116, 中国

通讯作者:
李鹏 E-mail: pengli@ustb.edu.cn

苗胜军 E-mail: miaoshengjun@ustb.edu.cn

文章亮点

(1) 提出了一个新定义的特征参数C_ERP作为评估岩体结构性质的指标

(2) 使用信息分布方法建立了一个模糊关系矩阵

(3) 证明了最大水平应力σ_H和C_ERP之间相对详细的局部关系

中文摘要

了解岩性的力学性质对于准确确定水平应力大小至关重要。为了研究岩体性质与最大水平应力之间的相关性，采用了在中国9个矿山使用改进的应力解除法地应力测量技术确定的89个测点的三维地应力张量，提出了一个新定义的特征参数C_ERP作为评估岩体结构性质的指标，并使用信息分布方法建立了一个模糊关系矩阵。结果表明，垂直应力和水平应力均与深度呈良好的线性增长关系。弹性模量、泊松比与深度之间没有显著的相关性，数据点的分布比较分散和混乱。而且，岩石质量指标（RQD）与深度之间也没有明显的数学关系。最大水平应力σ_H是岩体性质的函数，在同一深度上，与C_ERP呈一定的线性关系。此外，通过建立的模糊识别方法确定的σ_H的整体变化趋势是随着C_ERP的增加而增加。模糊识别方法还证明了σ_H和C_ERP之间相对详细的局部关系，预测曲线以波动的方式增加，这与实测应力数据非常一致。

关键词:

Research Article

Correlation between the rock mass properties and maximum horizontal stress: A case study of overcoring stress measurements

+ Author Affiliations

Abstract

Abstract

Understanding the mechanical properties of the lithologies is crucial to accurately determine the horizontal stress magnitude. To investigate the correlation between the rock mass properties and maximum horizontal stress, the three-dimensional (3D) stress tensors at 89 measuring points determined using an improved overcoring technique in nine mines in China were adopted, a newly defined characteristic parameter C_ERP was proposed as an indicator for evaluating the structural properties of rock masses, and a fuzzy relation matrix was established using the information distribution method. The results indicate that both the vertical stress and horizontal stress exhibit a good linear growth relationship with depth. There is no remarkable correlation between the elastic modulus, Poisson’s ratio and depth, and the distribution of data points is scattered and messy. Moreover, there is no obvious relationship between the rock quality designation (RQD) and depth. The maximum horizontal stress σ_H is a function of rock properties, showing a certain linear relationship with the C_ERP at the same depth. In addition, the overall change trend of σ_H determined by the established fuzzy identification method is to increase with the increase of C_ERP. The fuzzy identification method also demonstrates a relatively detailed local relationship between σ_H and C_ERP, and the predicted curve rises in a fluctuating way, which is in accord well with the measured stress data.
- overcoring stress measurements;
- elastic modulus;
- Poisson’s ratio;
- rock quality designation;
- maximum horizontal stress;
- fuzzy identification

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References(49)

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岩体性质与最大水平应力的关系：以应力解除法测量数据为例

文章亮点

中文摘要

Correlation between the rock mass properties and maximum horizontal stress: A case study of overcoring stress measurements

Abstract

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