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Open access Aug 2026

Numerical Investigation of Rock–Backfill Composite Fracture Evolution Laws Under Deep Mining and Filling Stress Paths

Fracture evolution of rock–backfill composites (RBCs) under complex loading–unloading and dynamic disturbances is critical for stope stability in deep backfill mining. Using PFC3D, this study constructs numerical models of RBCs to investigate this process, considering burial depths (500, 1000, 1500, 2000 m), interface...

Hong-Jian Lu, Zhao-Yang Ren, Fan Jiang · 0 citations
2024

Fatigue Mechanical Behaviors of Rock-Backfill Composites: Laboratory Study

This book is intended as a reference book for advanced graduate students and research engineers in rock mechanics related to mining engineering. The cemented tailings backfill (CTB) technique is widely used in deep underground mining, since this technique is effective to support surrounding rock, control rockburst, r...

Yu Wang, Yongchun Yu · 0 citations
Open access Jul 2026

Dynamic Mechanical Properties and Damage Constitutive Model of Layered Cemented Backfill Under Blasting Disturbance

In this study, we explore the static and dynamic mechanical responses of layered cemented backfill subjected to blasting loads. Variable-rate uniaxial compression tests and Split Hopkinson Pressure Bar (SHPB) numerical simulations were performed on specimens with three different interlayer cement-to-tailings ratios. Al...

Yu-Ye Tan, Ziyi Zeng, Fenghao Zhu et al. · 0 citations
Open access Aug 2026

Creep-Induced Time-Dependent Deformation and Width Optimization of Slice Drifts in Underhand Backfill Mining: Analytical, Numerical, and Field Investigations

The stability of slice drifts is critical to the safety and sustainability of mining operations. In underhand cemented backfill mining, slice drifts may be subjected to a special condition in which both the roof and sidewalls are composed of cemented backfill. Therefore, evaluating their long-term stability is of signi...

Ji-Long Pan, Qin-Li Zhang, Yan Feng et al. · 0 citations
Jul 2026

Model Test Study on the Factors Influencing Anti-Slide Pile Reinforcement in High Backfill Slopes

In civil engineering projects, the practice of partial excavation or backfilling of slopes often results in landslide occurrences because of the redistribution of internal stress within the slope mass. This paper presents the findings from scaled-model tests conducted to investigate the reinforcement of high-fill emb...

Bingxiang Yuan, Weiyuan Xu, Kaipeng Yang et al. · 0 citations
Open access Aug 2026

Mechanical Properties and Damage Evolution of Cemented Gangue–Rubber Paste Backfill (CGRPB) Under Monotonic and Cyclic Compressions

Cemented paste backfill (CPB) is widely used in mining, but its high brittleness, low toughness, and limited ductility can cause it to crack and spall, or even damage the overall structure, thereby limiting its application in deep underground mine excavations. To this end, this study investigates the damage and failure...

Chengjin Gu, M. Silva, Baogui Yang et al. · 0 citations

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