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4. Discussion4.1. Effect of water on friction re-strengthening rate. The different effect of the presence of pressurized liquid water on the frictional re-strengthening rate of micro-gabbro and Carrara marble suggested that different micro-physical processes operated during the deceleration phase of the slip pulse, as clearly supported by microstructural evidence (Fig. 5).
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Download Citation | Seismic Effects of Blasting in Rock | The results of theoretical and experimental investigations of seismic waves depending on natural and technological factors are discussed ...
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Pore fluid effects on seismic velocity in anisotropic rocks Tapan Mukerji; Tapan Mukerji Stanford University, Stanford Rock Physics Laboratory, Stanford, CA, United States ... predicts the high- and low-frequency saturated velocities in anisotropic rocks entirely in terms of measurable dry rock properties without the need for idealized crack ...
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@article{Guo2023DepthEO, title={Depth Effect of Rock-Breaking Seismic Source by Drilling Jumbo in Subsea Tunnel with the Drill and Blast Method and Its Application Prospects}, author={Weidong Guo and Zhenyan Tian and Shucai Li and Shao-shuai Shi and Wang Xin and Xiansen Li}, journal={Journal of Marine Environmental Engineering}, year={2023 ...
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The crusher type showed significant effects on the aggregate form.. The rock type showed important effects on the texture of coarse aggregate. • The effect of the crusher type on the characteristics of shape is more in the marble and less in the tuff aggregates.. Aggregate produced from HSI showed a higher cubical form, angularity, and roughness rather than JC.
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Taking into account the seismic effect in rock mass classification is a relatively new topic which has been addressed in this paper. Moreover, it has been attempted to investigate the seismic ...
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The terms "excavation" and "mining" apply to all activity occurring at excavation or mining sites, including sites identified as quarries, gravel, rock crushers and sand pits. The terms excavation and mining do not include exploratory activities as set forth below.
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ADVERTISEMENTS: In this article we will discuss about:- 1. Meaning of Faults 2. Causes of Faulting 3. Effects 4. Recognition 5. Engineering Considerations 6. Examples. Meaning of Faults: Under the influence of stresses developing from within the Earth, the rock masses adjust themselves either by bending, when they lie deep below the surface (in zone […]
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effect, disrupt the natural environment in the form of crushing, scattering pieces of rock, air strikes, occurrence of seismic effects, etc. The basic requirement for the use of explosive …
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Seismic waves are an efficient exploration tool that can penetrate underground media and interrogate their physical properties. Based on the rock physics acoustic experiments, Snieder et al. (2002) found that repeat coda waves can be used to accurately detect the seismic velocity changes inside the heated rock, which reflects the opening and closing of micro cracks.
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Includes: Kleemann Crusher Droppstadt Trommel 350 Cone Crusher Cone Crusher 2 materials Conveyor Silo Tracker Conveyor Mining Decorations Credits: FS Miner Download mod File File size …
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Causes and Effects of Noise from Jaw Crushers. Jaw crushers generate significant noise levels due to the nature of their operations, including impact and grinding noises produced during the crushing process. The "crusher exhaust …
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Instruments were installed in measurement line between 1.5 m and 80 m distance during 17 blast with total of 122 recorded events, to cover larger area than calculated for …
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442. solving practical prob of ems production, namely, the seismic action of a blast near populated built-up areas orin combined open-cut andnderground mining, the stability ofthe …
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The results of theoretical and experimental investigations of seismic waves depending on natural and technological factors are discussed, with methods for engineering calculations of industrial blast parameters. ... Seismic Effects of Blasting in Rock @inproceedings{Kuzmenko1993SeismicEO, title={Seismic Effects of Blasting in Rock}, …
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The scattered seismic waves of fractured porous rock are strongly affected by the wave-induced fluid pressure 12 diffusion effects between the compliant fractures and the stiffer embedding background. To include these poroelastic effects ... To validate the proposed viscoelastic modeling scheme can capture the impact of FPD effects on seismic wave
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The Nayong RA occurred on 28 August 2017, in Nayong County, Guizhou Province, China. The rock masses in the region always exhibit developed joints and karst …
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Seismic Effects of Reservoirs ... were many explosions, rock bursts, and coal bumps recorded at each station, and every effort was made to exclude these data. The data were substantiated by nearby seismograph stations at Logan, Salt Lake City, …
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Seismic Effects of Blasting in Rock. A.A. Dauetas, I.I. Denisyuk, A.A. Kuzmenko, V.D. Vorobev. CRC Press, Jan 1, 1993 - Science - 177 pages. The results of theoretical and experimental investigations of seismic waves depending on natural and technological factors are discussed, with methods for engineering calculations of industrial blast ...
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Gassmann's (1951) equations commonly are used to predict velocity changes resulting from different pore‐fluid saturations. However, the input parameters are often crudely estimated, and the resulting estimates of fluid effects can be unrealistic. In rocks, parameters such as porosity, density, and velocity are not independent, and values must be kept consistent and …
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Figures 7 and 8 show respectively the maximum axial force on the lining for the elastic and plastic analysis when both horizontal and vertical seismic coefficients are applied.
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Moreover, several shaking table tests have investigated the effects of rapid water drawdown (RWD) on the seismic response of rock slopes with discontinuities. Through time-frequency analysis, these studies investigated the spectral and energy propagation characteristics of reservoir rock slopes under RWD conditions.
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The results of theoretical and experimental investigations of seismic waves depending on natural and technological factors are discussed, with methods for
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In the crushing area, the majority of the explosion's energy is expended in the extensive crushing of the rock. In the fissure area, the explosive gas primarily exerts its force at the crack tips.
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Abstract. The scattered seismic waves of fractured porous rock are strongly affected by the wave-induced fluid pressure diffusion effects between the compliant fractures and the stiffer embedding background. To include these poroelastic effects in seismic modeling, we develop a numerical scheme for discretely distributed large-scale fractures embedded in fluid …
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The effects of scour depth on the seismic responses of rock-socketed single pile foundations and 2 × 2 pile group foundations were investigated by shaking table tests, and the seismic performance and differences of these two foundation types were analyzed. ... the single pile is more susceptible to seismic effects as the scour depth increases ...
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A simple dispatching app. Log in to Mathaul Use the email address you use for work
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Effects of in-situ stress on dynamic crushing and blast fracturing are quantified. Abstract The depletion of shallow-buried reserves has been driving the exploitation activities …
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7,209 rock crushers stock photos, 3D objects, vectors, and illustrations are available royalty-free. ... Vintage retro effect filtered hipster style image of Industrial background - crusher (rock stone crushing machine) at open pit mining and processing plant for crushed stone, sand and gravel. quarry stones for construction.
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