Monitoring the failure process of cemented paste backfill at different curing times by using a digital image correlation technique

Yang, Liujun; Hou, Chen; Zhu, Wancheng; Liu, Xige; Yan, Baoxu; Li, Lei

doi:10.1016/j.conbuildmat.2022.128487

Cited by 40 publications

(2 citation statements)

References 49 publications

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“…DIC has been widely used in rock testing. Yang et al [19] studied the deformation behavior, fracture development, and failure pattern of CPB using a digital image correlation (DIC) technique. Zhao et al studied the damage distribution characteristics and strain field evolution law of the filling body under different blast loading strengths using the DIC method and fractal theory.…”

Section: Introductionmentioning

confidence: 99%

Study on Mechanical and Acoustic Emission Characteristics of Backfill–Rock Instability under Different Stress Conditions

Dong,

Yan,

Chen

et al. 2024

Sensors

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Unveiling the mechanical properties and damage mechanism of the complex composite structure, comprising backfill and surrounding rock, is crucial for ensuring the safe development of the downward-approach backfill mining method. This work conducts biaxial compression tests on backfill–rock under various loading conditions. The damage process is analyzed using DIC and acoustic emission (AE) techniques, while the distribution of AE events at different loading stages is explored. Additionally, the dominant failure forms of specimens are studied through multifractal analysis. The damage evolution law of backfill–rock combinations is elucidated. The results indicate that DIC and AE provide consistent descriptions of specimen damage, and the damage evolution of backfill–rock composite specimens varies notably under different loading conditions, offering valuable insights for engineering site safety protection.

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Section: Introductionmentioning

confidence: 99%

Study on Mechanical and Acoustic Emission Characteristics of Backfill–Rock Instability under Different Stress Conditions

Dong,

Yan,

Chen

et al. 2024

Sensors

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“…As a safe and environmentally friendly disposal method for tailings, backfilling has significant advantages in controlling surface deformation and in improving ore recovery. Its benefits for use in underground mines are being recognized increasingly around the world [1][2][3][4][5][6][7]. The materials comprising cemented paste backfill (CPB) are important in maintaining mine safety and stability [8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

The Failure Mechanical Properties of Cemented Paste Backfill with Recycled Rubber

Yang

Wang

et al. 2023

Materials

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Understanding the mechanical properties and failure process of cemented paste backfill with recycled rubber (RCPB) is the foundation of backfill design in underground mining. In this study, physical and mechanical tests were conducted on RCPB to obtain its mechanical property parameters, such as its uniaxial compressive strength (UCS), toughness, and peak strain. The influence of the rubber dosage on the mechanical properties of RCPB was also analyzed. In addition, the deformation behavior, fracture development, and failure process of RCPB with different rubber contents were observed using the digital image correlation (DIC) technique. The experimental results suggested that, although the UCS of RCPB is reduced as more rubber is added, its toughness and ability to absorb energy is increased. Moreover, the impact resistance of RCPB is improved by this increased toughness. With the increase in the rubber content, the deformation corresponding to the plastic yield stage of RCPB increased, which resulted in better ductility and improved impact resistance. The failure of the RCPB specimens mainly showed an “X” shape. The results of this study help us to better understand the mechanical behavior of RCPB after backfilling underground.

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Evaluation of rheological and mechanical performance of gangue-based cemented backfill material: a novel hybrid machine learning approach

Shi

Zhang

Yan

et al. 2023

Environ Sci Pollut Res

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Monitoring the failure process of cemented paste backfill at different curing times by using a digital image correlation technique

Cited by 40 publications

References 49 publications

Study on Mechanical and Acoustic Emission Characteristics of Backfill–Rock Instability under Different Stress Conditions

Study on Mechanical and Acoustic Emission Characteristics of Backfill–Rock Instability under Different Stress Conditions

The Failure Mechanical Properties of Cemented Paste Backfill with Recycled Rubber

Evaluation of rheological and mechanical performance of gangue-based cemented backfill material: a novel hybrid machine learning approach

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