Jinchao Wang, Zengqiang Han, Chao Wang, Guohua Zhang, Xiaobin Li
State Key Laboratory of Water Resource Protection and Utilization in Coal Mining, Beijing, 102211, China.
State Key Laboratory of Geomechanics and Geotechnical Engineering Safety, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan, 430071, China.
Sci Rep. 2025 Jul 1;15(1):22050. doi: 10.1038/s41598-025-06049-y.
The integrity of the roadway surrounding rock is directly related to the safety and stability of the mine, and it is of great significance to carry out a rapid evaluation method for the surrounding rock integrity of the coal mine roadway during the construction process. In response to the limitation of traditional borehole rock integrity evaluation methods on borehole wall images, this paper proposes a coal mine roadway rock integrity evaluation method based on borehole image-acoustic-radar data, utilizing the unique advantages of borehole image, acoustic scanning, and radar detection technologies in-situ. Firstly, by constructing a multivariate characteristic parameter analysis method for borehole rock mass structure, the multivariate characteristic parameter description of borehole rock mass structure can be achieved. Subsequently, by constructing and integrating integrity factors of different scales, an evaluation method for multi-scale surrounding rock integrity of coal mine roadway is formed. Finally, combined with practical case analysis, the correctness and superiority of the method proposed in this paper are verified. The results show that the method proposed in this paper can reveal the structure and defect characteristics of rock masses from different perspectives and levels, providing rich data support for the evaluation of surrounding rock integrity. This method integrates multiple borehole testing techniques and simultaneously considers the global and local integrity analysis of rock mass structures of different scales around the borehole.
巷道围岩完整性直接关系到矿井的安全与稳定，在施工过程中开展煤矿巷道围岩完整性快速评价方法具有重要意义。针对传统钻孔岩石完整性评价方法对钻孔壁图像的局限性，本文提出一种基于钻孔图像 - 声波 - 雷达数据的煤矿巷道岩石完整性评价方法，利用钻孔图像、声波扫描和雷达探测技术现场的独特优势。首先，通过构建钻孔岩体结构多元特征参数分析方法，实现对钻孔岩体结构的多元特征参数描述。随后，通过构建和整合不同尺度的完整性因子，形成煤矿巷道多尺度围岩完整性评价方法。最后，结合实际案例分析，验证了本文所提方法的正确性和优越性。结果表明，本文所提方法能够从不同角度和层面揭示岩体的结构和缺陷特征，为围岩完整性评价提供丰富的数据支持。该方法集成了多种钻孔测试技术，同时考虑了钻孔周围不同尺度岩体结构的全局和局部完整性分析。
