Impact of Massive Blasts on Stability of Tectonic Faults

Kocharyan, G. G.; Kulikov, V. I.; Павлов, Д. В.

doi:10.1134/s1062739119066283

Cited by 6 publications

(4 citation statements)

References 9 publications

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“…The jump in the stresses under that trigger and their further relaxation initiates aftershocks [24]. The same mechanism is valid for the trigger events triggered by blasts [10,12,15]. Blasts have no directivity patterns and occur irrespective of the stress level.…”

Section: Distribution Of Distances From Trigger Blasts To Trigger Eventsmentioning

confidence: 89%

“…The impact of blasting on the energy of seismic events is comprehensively considered in the studies [10][11][12]. Blasts violate the local stress field near a hypocenter and generate stress concentrate zones, which leads to brittle fracture of rock mass (induced seismicity).…”

Section: Introductionmentioning

confidence: 99%

“…Blasts violate the local stress field near a hypocenter and generate stress concentrate zones, which leads to brittle fracture of rock mass (induced seismicity). Although blasting-induced seismic events are small as compared to the natural seismicity [12], they can endanger mining operations [13,14].…”

Section: Introductionmentioning

confidence: 99%

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Spatial distribution of blast-triggered seismic events: a case-study of the Khibiny Massif

Motorin,

Baranov,

Shebalin

2023

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Section: Distribution Of Distances From Trigger Blasts To Trigger Eventsmentioning

confidence: 89%

Section: Introductionmentioning

confidence: 99%

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Spatial distribution of blast-triggered seismic events: a case-study of the Khibiny Massif

Motorin,

Baranov,

Shebalin

2023

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“…Considering this question is out of the frames of this article. We should only note that excavation of material from a large operating quarry with the sizes of kilometers in plane and hundreds of meters in depth leads to a reduction of Coulomb stresses up to 1 MPa at the planes of faults located at depths of several kilometers [114]. This value is negligible compared to the level of lithostatic stresses.…”

Section: Excavation and Displacement Of Rock In Miningmentioning

confidence: 94%

Fault Sliding Modes—Governing, Evolution and Transformation

Kocharyan

Остапчук

Павлов

2020

Springer Tracts in Mechanical Engineering

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A brief summary of fundamental results obtained in the IDG RAS on the mechanics of sliding along faults and fractures is presented. Conditions of emergence of different sliding regimes, and regularities of their evolution were investigated in the laboratory, as well as in numerical and field experiments. All possible sliding regimes were realized in the laboratory, from creep to dynamic failure. Experiments on triggering the contact zone have demonstrated that even a weak external disturbance can cause failure of a “prepared” contact. It was experimentally proven that even small variations of the percentage of materials exhibiting velocity strengthening and velocity weakening in the fault principal slip zone may result in a significant variation of the share of seismic energy radiated during a fault slip event. The obtained results lead to the conclusion that the radiation efficiency of an earthquake and the fault slip mode are governed by the ratio of two parameters—the rate of decrease of resistance to shear along the fault and the shear stiffness of the enclosing massif. The ideas developed were used to determine the principal possibility to artificially transform the slidding regime of a section of a fault into a slow deformation mode with a low share of seismic wave radiation.

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