Seismic Effects of Blasting in Rock
fundamental concepts on rocks and seismic effects of a blast, 2. frequency spectra of seismic vibrations, 3. effect of blasting a cylindrical charge in soils with a free face, 4. seismic effects due to blasting of a cylindrical charge, 5. reducing the magnitude of blast-induced seismic wave effects by using artificial screens, 6.
Fundamentals of seismic rock physics | GEOPHYSICS
During the past 50 years or so, tremendous progress has been made in studying physical properties of rocks and minerals in relation to seismic exploration and earthquake seismology. During this period, many theories have been developed and many experiments have been carried out. Some of these theories and experimental results have played …
Seismic Effects of Blasting in Rock
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 ...
On the seismic response of deep-seated rock slope …
Landslides are also triggered in IR slopes with a 60° layer inclination, which are generally stable in gravity-dominant environments. This study examines the effect of seismic motion on the response characteristics and failure patterns of IR slopes with steep layers to develop a landslide hazard assessment tool for earthquake-prone regions.
A Detailed Overview of Cone Crushers and What …
Rock crushers, like the cone crushers we'll be discussing in just a moment, generate incredible force to break raw material into smaller pieces. Once material exits the crusher, the user can refine it further to …
Effect of pore structure on seismic rock-physics characteristics of
The Ordovician carbonate rocks of the Yingshan formation in the Tarim Basin have a complex pore structure owing to diagenetic and secondary structures. Seismic elastic parameters (e.g., wave velocity) depend on porosity and pore structure. We estimated the average specific surface, average pore-throat radius, pore roundness, and …
Particle Crushing of a Filled Fracture During …
This significantly influences the stablity of the rock mass engineering, the seismic fault, and even the regional crust. It is …
Seismic performance of earth-core and concrete-faced rock …
Kong et al. [12] investigated the dynamic failure phenomena of homogeneous rock-fill dam and CFRD by shaking table tests, and discussed the effect of concrete slab on slope stability. Torisu et al. [10] probed into the seismic performance of both earth-core and a surface membrane fill dam models by shaking table model tests, and assessed the ...
Hydraulic Impacts of Quarries and Gravel Pits
• interruption of ground-water conduit flow paths by rock removal, and • temperature change (thermal impacts) in springs and surface-water streams. ... changes of this magnitude could have a negative effect on fish populations in Camp Creek, a designated trout stream. Figure 4. Temperature monitoring of water at Big Spring Quarry in Harmony.
Probabilistic analysis of tunnel face seismic stability in layered rock …
The sensitivity index of k h can be found in Fig. 19 b, and it is seen that the seismic effects are more significant with the increase of the horizontal and vertical seismic coefficient. Therefore, the vertical seismic effect cannot be ignored in the layered rock tunnel face stability analysis. Download: Download high-res image (238KB)
P-wave seismic attenuation by slow-wave diffusion: Effects …
Recent research has established that the dominant P-wave attenuation mechanism in reservoir rocks at seismic frequencies is because of wave-induced fluid flow (mesoscopic loss). The P-wave induces a fluid-pressure difference at mesoscopic-scale inhomogeneities (larger than the pore size but smaller than the wavelength, typically tens of centimeters) …
Effect of Rock Weathering on the Seismic Stability of
In this study, authors will be dealing with seismic effect under the influence of rock weathering in case of different shaped tunnels. There are many methods to analyze the problems, one can do it either by the experimental approach, or analytical approach or numerical approach, etc. The experimental work requires sophisticated machineries and ...
Seismic Effects of Blasting in Rock
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 …
How to Reduce Noise and Dust Emissions from Your Jaw …
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 sound" and the "rock crusher sound" are common terminologies used to describe these noises.
Comparison of seismic effects during deep tunnel excavation …
The rapid release of strain energy is an important phenomenon leading to seismic events or rock failures during the excavation of deep rock. Through theoretical …
Rock Crushers & Pulverizers
Key features of Williams Rock Crushers include: The ability to crush a wide variety of materials; Durable, reliable machine construction that lasts for decades; Customized systems and designs to meet your specific needs . Benefits of Williams Rock Crushers. The rock crushers we design are versatile and can be used in a variety of industries.
Seismic site characterization baseline data for microzonation …
This study presents the findings of a comprehensive geotechnical and seismic site investigation conducted at Otuasega Town located in Bayelsa State within the Niger …
Simulating Crack Development and Failure …
During the 2 to 5 s of strong seismic intensity, crack increases sharply and energy of particles fluctuates greatly. The impacts of the amplitude of seismic loading and loading method in PFC are …
Seismic Effects of Blasting in Rock | Semantic Scholar
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 …
Liner wear in jaw crushers
1. Introduction. Jaw and cone crushers are commonly used in the mining and aggregates industry. Today, it is possible to predict the performance of a cone crusher, provided the geometry, crusher settings and the characteristics of the material fed into the crusher are known (Evertsson, 2000).The geometry of the crusher will change because …
Effects of Rock Damage on Seismic Waves Generated by Explosions
— In studying the physical processes involved in the generation of seismic waves by explosions, it is important to understand what happens in the region of high stresses immediately surrounding the explosion. This paper examines one of the processes that takes place in this region, the growth of pre-existing cracks, which is described …
The effect of seismic surveys on catch rates of rock lobsters …
The effect of seismic discharges on rock lobsters was investigated through statistical analysis of the coincidence between seismic surveys and changes in commercial catch rates in western Victoria between 1978 and 2004. In 12 depth-stratified regions, the number of acoustic pulses during seismic surveys was correlated with catch per unit …
The Dynamic Deformation Properties of Rock Materials …
As stated in the introduction, seismic load can be treated as a medium and low-strain-rate dynamic cyclic loading. Therefore, the dynamic constitutive model under …
Effects of Seismicity on Rock Support in Tunnels of …
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.
A Simplistic Method for Assessing Seismic Damage in Rock
Numerous researchers worked on classifying the post-earthquake damages in tunnels. These post-earthquake damage classifications are modified by researchers …
Seismic rock physics
Rock physics studies the relationship between physical and elastic properties of rocks and is the basis of quantitative seismic interpretation.It has arguably given exploration geophysicists a solid quantitative basis to their interpretation of seismic data.It can be tackled at different scales of investigation by people with various backgrounds — …
Seismic performance and failure mechanism of interbedded …
The effect of rock strength on the seismic stability of slopes can be found in the literature (e.g., Lv et al., 2017; Massey et al., 2017). Download: Download high-res image (385KB) Download: Download full-size image; Fig. 17. Damage indicator of slope with various weak rock layer stiffnesses at different seismic intensities.
Effect of grain-scale gas patches on the seismic properties …
THEORY. We consider a rock as a solid matrix containing soft pores—cracks and intergranular contacts—surrounded by isometric stiff pores. In the following, we treat the case of pore space partially saturated with a viscous liquid (volume fraction S fl) and a much more compressible and inviscid gaseous phase (volume fraction 1-S fl).However, …
Thermo-seismic characteristics of a crushed-rock interlayer …
Crushed rock is a highly porous medium widely used to cool embankments in permafrost regions. The thermal transfer of a crushed-rock embankment (CRE) was fully investigated by experimental and numerical methods. However, the CRE's mechanical process, especially under dynamic loading, is a key factor for its safe operation but has …
8.3: Seismic Waves
The higher density reduces the speed of seismic waves. However, the effects of increased rigidity and compressibility in the deep mantle are much greater than the effect of the increased density. P-waves travel through materials with rigidity and/or compressiblity, and density; greater rigidity: