seismic velocity of coal in indian mines



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Geophysical detection of outbursts – Mining Science and ,
Geophysical detection of outbursts – Mining Science and ,

Home / Coal Mine Outburst / Management / Prediction / Geophysical detection of outbursts , It is also possible to use the seismic noises created by shearers to develop tomographic images of seismic velocity and seismic attenuation in the near vicinity of the face The velocity and attenuation can be related to the stress in the rock mass

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Seismic Monitoring Strategies for Deep Longwall Coal Mines
Seismic Monitoring Strategies for Deep Longwall Coal Mines

for Deep Longwall Coal Mines Seismic Monitoring Strategies for Deep Longwall Coal Mines RI 9700 REPORT OF INVESTIGATIONS/2016 Report of Investigations 9700 Seismic Monitoring Strategies for Deep Longwall Coal Mines Peter Swanson, M Shawn Boltz, and Chambers , Shift in calculated event locations when seismic velocity model fails .

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Coal Mine Safety Applications of Seismic Monitoring - CDC
Coal Mine Safety Applications of Seismic Monitoring - CDC

To implement in-mine seismic monitoring techniques in coal mines to evaluate and demonstrate potential mine safety benefits of this technology These benefits include use of the resulting data for improved ground control hazard management, rock mass modeling, and mine and support design practices in deep coal environments

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27th Seismic Research Review: Ground-Based Nuclear ,
27th Seismic Research Review: Ground-Based Nuclear ,

SOURCE PARAMETERS OF SEISMIC EVENTS IN A COAL MINE IN INDIA , Sponsored by Coal India, Ministry of Mines, Government of India Contract No WOS052121 ABSTRACT Longwall mining is one of the most widely used mining methods in underground coal mining Longwall mining , velocity of ground motion versus time at the location of the sensor The .

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Assessment of Geo-mechanical properties of some Gondwana ,
Assessment of Geo-mechanical properties of some Gondwana ,

India is a country rich in coal reserv Estimation of geo-mechanical properties of the coal has a direct bearing on the production of the mine It is directly related to the design and stability of slope benches, dumps, in surface mine and pillar

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Seismic, Magnetic, and Geotechnical Properties of a ,
Seismic, Magnetic, and Geotechnical Properties of a ,

A^, Seismic velocity curves from ground-surf ace data J3, Lithology and least-squared seismic , Exploitation of vast coal and other resources in the Powder River Basin has caused recent, rapid increases in population and in commercial and , were provided by members of the Colorado School of Mines: Phil lip R Romig (Chairman), Keith A .

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A source generation model for near-field seismic impact of ,
A source generation model for near-field seismic impact of ,

Much research has been carried out to study seismic impacts in coal mines (Orlecka-Sikora et al 2012, Zhang et al 2013, Lu and Dou 2014, Vinoth and Ajay Kumar 2014) and the results show that coal fractures in stress concentration zones are one of the main factors causing strong seismic impacts or even rock bursts (Li et al 2014) Therefore, it .

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Seismic Characterization of the Navajo Reservoir, Buzzards ,
Seismic Characterization of the Navajo Reservoir, Buzzards ,

1New Mexico Institute of Mining and Technology, Socorro, NM, United States , Two coal fired power plants in the area will provide CO 2 , The Seismic-Well Tie velocity model was created from seismic horizons interpreted with the aid of well tops in the tieing well The

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Coal Exploration and Mining Geology
Coal Exploration and Mining Geology

GEOLOGY – Vol V – Coal Exploration and Mining Geology - Colin R Ward , Coal mining geology embraces a number of special skills and , seismic lines and other sites should be precise enough to allow plotting at the larger scale when mining is under way

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Application of Seismic Refraction Survey to Delineate the ,
Application of Seismic Refraction Survey to Delineate the ,

shallow under ground coal mining areas of Indian coal fields for the determination of seismic velocities of subsurface layers with respective thickness which in ,

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Integration of Active and Passive Seismic Data for ,
Integration of Active and Passive Seismic Data for ,

fluid front instead of the seismic velocity chang Compared with deep aquifer and gas/oil reservoir storages, coal beds have some special features related to in-situ monitoring

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SEISMIC CHARACTERISTICS AND STRAIN OF COAL DURING ,
SEISMIC CHARACTERISTICS AND STRAIN OF COAL DURING ,

SEISMIC CHARACTERISTICS AND STRAIN OF COAL DURING THE SORPTION OF CO 2 AND CH 4 A THESIS IN Environmental and Urban Geosciences Presented to the Faculty of the University

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Monitoring Velocity Changes Caused By Underground Coal ,
Monitoring Velocity Changes Caused By Underground Coal ,

Abstract We use passive seismic interferometry to monitor temporal variations of seismic wave velocities at the area of underground coal mining named Jas- Mos in Poland

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Seeing coal-seam top ahead of the drill bit through ,
Seeing coal-seam top ahead of the drill bit through ,

Coal has distinctive physical properties compared with other sedimentary rocks (eg, sandstones, shales, mudstones, and siltstones) in which it is found juxtaposed: low density, low seismic velocity, low magnetic susceptibility, low natural radioactivity, and high electrical resistivity

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Aspects of seismic hazards caused by the Mining - IJEIT
Aspects of seismic hazards caused by the Mining - IJEIT

events in Saarland with a maximum vibration velocity of 9354 mm / s, which corresponds to a value of 40 on the Richter scale II EFFECT OF MINING ON GROUND , accidents in the gold mines in Kolar, India where within 3 , Experiences have shown that in situ coal mines seismic waves increase as the size grows underground operating room If .

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Applying real time seismic monitoring technology for slope ,
Applying real time seismic monitoring technology for slope ,

With the development of sophisticated seismic instru- ity, it is proposed to apply the microseismic monitoring technique mentation in the recent years, the application of microseismic for an opencast coal mines in India for predicting slope failur

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Tomographic imaging of high seismic activities in ,
Tomographic imaging of high seismic activities in ,

Passive velocity tomography starts fairly late in China and is mostly used in earthquake field (Zhang et al 2013) and geophysical exploration (Zhao et al 2000; Peng et al 2002), while the application in seismic hazard evaluation in underground coal mining has been seldom involved (Gong 2010) The site chosen for this study is an underground .

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Update on the WV Miner Location Seismic System
Update on the WV Miner Location Seismic System

zAn accident has happened in an underground coal mine that has left some number of miners trapped , (60% of P wave velocity) zSeismic waves travel through the ground (5000 m/s), water (1450 m/s), and air (330 m/s) , zWV Mine Safety Roundtable on Seismic Miner Location, June 28th, 2006

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application of geophysics in coal mining at operation stage
application of geophysics in coal mining at operation stage

Underground coal mining in Australia is done , extracted in a second stage of mining , longwall mining operation commenced in the late 1990s using , Application of seismic velocity tomography in ,

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Land Processing - velseis
Land Processing - velseis

The information derived from our imaging and interpretation are of significant importance to the economics and safety of coal mining operations Velseis Processing has been providing specialized seismic processing services to the Mineral’s industry since 2002

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The Application of Seismic Attribute Analysis Technique in ,
The Application of Seismic Attribute Analysis Technique in ,

dimensional seismic data, which is acquired by digital geophone, with a group interval of 5 meters and a sample interval of 1 ms Here we use the seismic attributes analysis technique to identify minor faults, subsidence columns, gob and coal mine tunnels

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A NOVEL METHOD OF MEASURING SEISMIC VELOCITY IN ,
A NOVEL METHOD OF MEASURING SEISMIC VELOCITY IN ,

A NOVEL METHOD OF MEASURING SEISMIC VELOCITY IN OFF-EARTH CONDITIONS: IMPLICATIONS FOR FUTURE RESEARCH M Dello-Iacovo1, R C Anderson2 and S Saydam3, 1School of Mining Engineering, UNSW Australia, Kensington, NSW, Australia 2052; mdello-iacovo@unsweduau, 2Jet Propulsion .

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Underground Coal Mining | Institute of Mine Seismology
Underground Coal Mining | Institute of Mine Seismology

Underground Coal Mining OPERATION An installation of permanent surface and temporary underground seismometers communicates with a central seismic server located on surface for real-time seismic monitoring of the rock mass

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Application of seismic velocity tomography in underground ,
Application of seismic velocity tomography in underground ,

Abstract A better understanding of geological structures, stress regimes, and rock burst risks around longwall mining panels can allow for higher extraction efficiency with reduced safety concerns

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Assessment of Geo-mechanical properties of some Gondwana ,
Assessment of Geo-mechanical properties of some Gondwana ,

The seismic techniques are frequently employed to resolve and characterize the dynamic , load index of Gondwana coal, India, with the P-wave velocity due to its greater applicability in planning , different coal mines of Western Coal Field Limited in 264 Int R J Biotechnol

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refraction seismic for coal exploration - BINQ Mining
refraction seismic for coal exploration - BINQ Mining

>Crusher and Mill >refraction seismic for coal exploration; Print refraction seismic for coal exploration Posted at:January 22, 2013[ 48 - 1876 Ratings] Seismograph Information, Downloads and Case Studies | , Seismic Surveys for Coal Exploration and Mine , In this type of survey you examine low and high velocity layers down to the .

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Monitoring Velocity Changes Caused By Underground Coal ,
Monitoring Velocity Changes Caused By Underground Coal ,

Monitoring Velocity Changes Caused By Underground Coal Mining Using Seismic Noise RAFAł CZARNY, 1 HENRYK MARCAK,1 NORI NAKATA,2 ZENON PILECKI,1 and ZBIGNIEW ISAKOW 3 Abstract—We use passive seismic interferometry to monitor

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Blast optimisation with In Situ rock mass characterization ,
Blast optimisation with In Situ rock mass characterization ,

This seismic refraction survey technique was applied at sandstone benches of a coal mine for rock mass characterisation and blast optimisation by impedance matching of explosiv Field experiments were conducted on seismic profiling to characterise sandstone rock mass on the basis of P-wave velocity (Vp) measurements

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Quantification and Characterization of Regional Seismic ,
Quantification and Characterization of Regional Seismic ,

2 Abstract Cast blasts in coal mines, designed to move large volumes of overburden, are a source of large (1-5 kt), frequent explosions in parts of the world with near-surface coal resourc

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Contract No: B2532535 Technology: Crosshole Seismic ,
Contract No: B2532535 Technology: Crosshole Seismic ,

The presence of high velocity layers above and below the coal seam provides faster routes of travel for the seismic waves than through the coal seam This may mask the low velocity coal

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