加拿大某硬岩矿山现场胶结堆石的非均质性

IF 8.3 1区工程技术 Q1 ENGINEERING, CIVIL

Underground Space Pub Date : 2025-06-02 DOI:10.1016/j.undsp.2025.02.008

Chong Wei , Derek B. Apel , Huawei Xu , Jun Wang , Krzysztof Skrzypkowski

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引用次数: 0

摘要

对加拿大某硬岩矿山大型胶结堆石体岩心进行了单轴和三轴压缩试验。应力-应变曲线显示了不同深度下强度和变形特性的非均匀性。离析导致水泥和骨料分布不均匀，影响单轴抗压强度，且抗压强度随着靠近排放点而减小。研究结果证实了CRF柱的强度变异性，有助于稳定性评估和优化。

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Heterogeneity of field cemented rockfill at a Canadian hard-rock mine

This study presents uniaxial and triaxial compression tests on large-scale cemented rockfill (CRF) core samples from a Canadian hard-rock mine. Stress–strain curves indicate heterogeneity in strength and deformation properties at various depths. Segregation causes uneven cement and aggregate distribution, affecting uniaxial compressive strength, which decreases with proximity to the discharge point. Findings confirm CRF column strength variability, aiding stability assessment and optimization.

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来源期刊

Underground Space ENGINEERING, CIVIL-

CiteScore

10.20

自引率

14.10%

发文量

审稿时长

63 days

期刊介绍： Underground Space is an open access international journal without article processing charges (APC) committed to serving as a scientific forum for researchers and practitioners in the field of underground engineering. The journal welcomes manuscripts that deal with original theories, methods, technologies, and important applications throughout the life-cycle of underground projects, including planning, design, operation and maintenance, disaster prevention, and demolition. The journal is particularly interested in manuscripts related to the latest development of smart underground engineering from the perspectives of resilience, resources saving, environmental friendliness, humanity, and artificial intelligence. The manuscripts are expected to have significant innovation and potential impact in the field of underground engineering, and should have clear association with or application in underground projects.