Investigation of Disturbed Rock Zones in Open-Pit Mine Walls by Seismic Tomography

Mel'nikov, N. N.; Mesyats, Svetlana; Ostapenko, S. P.; Cherepetskaya, Elena B.; Shibaev, Ivan A.; Morozov, Nikolii A.; Kravcov, Alexander; Konvalinka, Adam

doi:10.4028/www.scientific.net/kem.755.147

Cited by 6 publications

(2 citation statements)

References 8 publications

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“…Westman et al [92] conducted time-lapse tomography using doubledifference tomography for an underground hard rock mine; the aim is to monitor the spatial evolution of a block cave; the data were retrieved from microseismic monitoring system from September through March 2010; the tomography results clearly show the high stress zone during the caving process and the caved height can be inferred combined with the distribution of microseismic events. Melnikov et al [118] imaged the shallow surface of the Zhelezny open-pit mine and then estimated Poisson's ratio and Young's modulus by using V P /V S values. Poisson's ratios can be used to detect induced fractures or weathering processes in the stepped walls.…”

Section: Shock and Vibrationmentioning

confidence: 99%

Review of the Evolution of Mining‐Induced Stress and the Failure Characteristics of Surrounding Rock Based on Microseismic Tomography

Zhu

Xingdong

Westman

2021

Shock and Vibration

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With the gradual depletion of shallow resources, deep mining has become an inevitable trend and has become an important part of the world mining industry. The high stress concentration caused by redistribution of original stress field will lead to stress-driven failure of surrounding rock; conventional methods, such as point-location stress measurement, analytical analysis, numerical simulation, and physical modeling, are not able to completely reflect the distribution and evolution characteristics of the mining-induced stress field in real time and at mine scale, so it is difficult to fully understand, control, and prevent mining-induced injuries and fatalities. In the past decades, microseismic monitoring technology, velocity tomography, numerical simulation, and laboratory test technology have been successfully applied to better understand mining-induced stress and rock mass failures. The combination of these methods has led to innovative ways to investigate the mining-induced stress field, surrounding rock failure, and hazard prevention. This review focuses on the mining-induced stress and velocity tomography based on microseismic monitoring data. Research progress in analysis and measurement methods of mining-induced stress, rock mechanics for mining, and velocity tomography practices are presented.

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Section: Shock and Vibrationmentioning

confidence: 99%

Review of the Evolution of Mining‐Induced Stress and the Failure Characteristics of Surrounding Rock Based on Microseismic Tomography

Zhu

Xingdong

Westman

2021

Shock and Vibration

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“…In work [22], data on the seismic wave velocities are used to estimate Young's modulus and Poisson's ratio, in [23], the damage characterisations of granites were studied by a combination of AE and ultrasonic transmission methods under a quasi-static uniaxial compression test. Mechanical characteristics and failure prediction of cement mortar with a sandwich structure was investigated in [24].…”

Section: Introductionmentioning

confidence: 99%

Estimation of stresses in a massive granite using laser ultra-sonic testing and stress memory effect

et al. 2023

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This paper addresses in-situ stress-estimation methods based on the Kaiser effect. The physical and mechanical properties of granite, diorite, and granodiorite samples selected at different depth intervals of the core obtained from a wellbore were examined. The ultimate uniaxial compressive strength, modulus of elasticity, and Poisson’s ratio of the rock samples were determined using presses and strain gauges. Also, local longitudinal and shear wave velocities were measured using a high-accuracy laser-ultrasonic system with a view to assessing the structure of the samples. Based on the resulting elastic wave velocity maps, samples with no obvious discontinuities were chosen. These undisturbed samples were subjected to uniaxial compression and their acoustic emission was simultaneously measured. In-situ stresses were estimated from the results of the interpretation of acoustic emission measurements. The experimental in-situ stresses were compared with the results of a numerical simulation. The ratio of the estimated in-situ stresses to the calculated ones is within the range from 0.81 to 1.11. This means that the laser ultrasonic and acoustic emission methods make it possible to effectively estimate in-situ stresses in a rock mass and assess the degree of rock mass damage.

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Evaluation of the Physical and Mechanical Properties and Structure of Geological Materials by Broadband Ultrasonic Structuroscopy

Shibaev

Belov

Kravcov³

et al. 2018

Recent Advances in Geo-Environmental Engineering, Geomechanics and Geotechnics, and Geohazards

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Investigation of Disturbed Rock Zones in Open-Pit Mine Walls by Seismic Tomography

Cited by 6 publications

References 8 publications

Review of the Evolution of Mining‐Induced Stress and the Failure Characteristics of Surrounding Rock Based on Microseismic Tomography

Review of the Evolution of Mining‐Induced Stress and the Failure Characteristics of Surrounding Rock Based on Microseismic Tomography

Estimation of stresses in a massive granite using laser ultra-sonic testing and stress memory effect

Evaluation of the Physical and Mechanical Properties and Structure of Geological Materials by Broadband Ultrasonic Structuroscopy

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