基于岩体切屑图像处理的岩体可钻孔性评价指标及分类体系

IF 8.4 1区工程技术 Q1 ENGINEERING, GEOLOGICAL

Engineering Geology Pub Date : 2025-06-06 DOI:10.1016/j.enggeo.2025.108176

Changbin Yan , Weirong Zhao , Tengfei Wang , Ziang Gao , Xiang Xiao , Jianpeng Qin , Yalong Jiang

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引用次数: 0

摘要

岩体的可钻孔性对隧道施工效率和成本有着重要影响。为了克服现有经验分类系统的局限性，本研究采用新的表面理论和图像处理技术，包括三维扫描、分割和分形分析，引入了基于岩屑特征的可钻孔性定量指数（BIp）。BIp与单轴抗压强度（UCS）和完整性指数（Kv）有很强的相关性(R2 >；0.84)，与现场穿透指数（FPI）吻合良好，最大限度地减少了非地质因素的影响。K-means聚类证实了BIp与刀盘磨损率（ωc）之间的明确关联，从而能够开发出新的钻孔性分类标准和刀盘磨损风险预警机制。研究结果对提高盾构掘进可钻孔性评价和设备防护具有一定的实用价值。

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Evaluation indicators and classification system for rock mass boreability based on rock mass chip image processing

The boreability of rock masses significantly affects tunnel construction efficiency and cost. To overcome limitations of existing empirical classification systems, this study introduces a quantitative boreability index (BI_p) based on rock chip characteristics, using new surface theory and image processing techniques including 3D scanning, segmentation, and fractal analysis. BI_p shows strong correlations with uniaxial compressive strength (UCS) and intactness index (K_v) (R² > 0.84), and aligns well with the field penetration index (FPI), minimizing the influence of non-geological factors. K-means clustering confirms clear associations between BI_p and cutter head wear rate (ω_c), enabling the development of a new boreability classification standard and a cutter wear risk warning mechanism. These results offer practical value for improving boreability assessment and equipment protection in shield tunnelling.

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来源期刊

Engineering Geology 地学-地球科学综合

CiteScore

13.70

自引率

12.20%

发文量

327

审稿时长

5.6 months

期刊介绍： Engineering Geology, an international interdisciplinary journal, serves as a bridge between earth sciences and engineering, focusing on geological and geotechnical engineering. It welcomes studies with relevance to engineering, environmental concerns, and safety, catering to engineering geologists with backgrounds in geology or civil/mining engineering. Topics include applied geomorphology, structural geology, geophysics, geochemistry, environmental geology, hydrogeology, land use planning, natural hazards, remote sensing, soil and rock mechanics, and applied geotechnical engineering. The journal provides a platform for research at the intersection of geology and engineering disciplines.