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blast vibration studies in surface mines

    BLAST VIBRATION STUDIES IN SURFACE MINES

    This is to certify that the thesis entitled, ―Blast Vibration Studies in Surface Mines‖ submitted by Mr. Badal Kumar Kujur in partial fulfilment of the requirement for the award of Bachelor of Technology Degree in Mining Engineering at the National Institute of Technology, Rourkela (Deemed University) is an authentic work carried out by him ...

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    Blast Vibration Studies in Surface Mines - ethesis

    Blasting is very important process for mining operation and a lot of explosive is used for this purpose. The blasting process and usage of explosives, however, remain a potential source of numerous human and environmental hazards. Various studies indicate that fragmentation accounts for only 20-30% of the total amount of explosive energy used.

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    Blast Vibration Studies in Surface Mines - CORE

    Blast Vibration Studies in Surface Mines . By Kujur Badal K. Get PDF (868 KB) Abstract. Blasting is very important process for mining operation and a lot of explosive is used for this purpose. The blasting process and usage of explosives, however, remain a potential source of numerous human and environmental hazards.

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    Structure Response and Damage Produced by Ground

    PRODUCED BY GROUND VIBRATION FROM SURFACE MINE BLASTING by D. E. Siskind1, M.S. Stagg!,J. W. Kopp5, and C. H. Dowding' ABSTRACT The Bureau of Mines studied blast-produced ground vibration 1 :om surface mining to assess its damage and annoyance potential, and to de1 ~rmine safe levels and appropriate measurement techniques.

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    Comparative Study of Blasting Vibrations From Indiana ...

    COMPARATIVE STUDY OF BLASTING VIBRATIONS FROM INDIANA SURFACE COAL MINES By David E. Siskind,1 Steven V. Crum,2 Rolfe E. Otterness,3 and John W. Kopp4 ABSTRACT The Bureau of Mines performed a comparative study of nine sites at eight surface coal mines to determine if the presence of near-surface underground abandoned workings

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    Comparative Study of Blasting Vibrations From Indiana ...

    COMPARATIVE STUDY OF BLASTING VIBRATIONS FROM INDIANA SURFACE COAL MINES By David E. Siskind,1 Steven V. Crum,2 Rolfe E. Otterness,3 and John W. Kopp4 ABSTRACT The Bureau of Mines performed a comparative study of nine sites at eight surface coal mines to determine if the presence of near-surface underground abandoned workings

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    Blasting Vibration - Office of Surface Mining Reclamation ...

    Bureau of Mines (USMB) performed the most thorough research concerning coalmine blasting effects on residential structures. These studies involved mounting instruments inside homes adjacent to a mine site and making observations during the blasting. Seismographs were used to measure ground movement and air overpressure from the

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    Damage to surface structures due to blast vibration ...

    The significance of studying, monitoring and predicting blast induced vibration and noise level in mining and civil activities is justified in the capability of imposing damages, sense of uncertainty due to negative psychological impacts on involved personnel and also judicial complaints of local inhabitants in the nearby area.

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    STRUCTURE RESPONSE AND DAMAGE PRODUCED BY GROUND VIBRATION

    These results were combined with damage data from nine other blasting studies, including the three analyzed previously for Bureau of Mines Bulletin 656. AB - The Bureau of Mines studied blast-produced ground vibration to assess its damage and annoyance potential, and to determine safe levels and appropriate measurement techniques.

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    Blast Vibration and Fragmentation Control at Heavily ...

    Download Citation Blast Vibration and Fragmentation Control at Heavily Jointed Limestone Mine The presence of structural inhomogeneity in a

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    Reduction of Blast Induced Ground ... - Mining and Blasting

    2.1 Mine details In order to study the reduction of ground vibrations due to blasting by a trench, Venkatesh (2002) conducted field experiments in a surface coal mine with an annual production of 1.7 Mt of coal and 5.3 Mcu. m of overburden. The topsoil in this mine is about 6 m to 8 m thick comprising of Morrum/Sandy soil. The immediate formation

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    Blasting Vibrations - Vibrationdamage

    Feb 02, 2021  Regulation of Blasting. In theory at least, surface mine blasting is highly regulated in the U.S. by the U.S. Bureau of Mines (USBM), Office of Surface Mining (OSM). You can see the relevant regulations in the OSM Blasting Performance Standards, 30 Code of Federal Regulations, Sec. 816.61 (first page shown at right).

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    A Comparative Study of Ground and Underground Vibrations ...

    5.2. PPV Estimation of Surface Vibration. Peak particle velocity of the bench blasting induced vibrations in the mine can be estimated according to the transmission law of vibrations. In Figure 9, the peak particle velocity of surface vibration can be estimated depending on the maximum charge amount per delay and distance (). For structures of ...

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    RI 8507 Structure Response and Damage Produced by Ground ...

    The Bureau of Mines studied blast-produced ground vibration from surface mining to assess its damage and annoyance potential, and to determine safe levels and appropriate measurement techniques. Direct measurements were made of ground-vibration-produced structure responses and damage in 76 homes for 219 production blasts.

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    A nonlinear model to estimate vibration frequencies in ...

    A nonlinear model to estimate vibration frequencies in surface mines. Mojtaba Mokhtarian-Asl. a, *, Aref Alipour a a. Faculty of Mining and Metallurgical Engineering, Urmia University of Technology, Urmia, Iran . A B S T R A C T Twenty measured blast data from the Golegohar iron mine (southern Iran) were used to generalize nonlinear models for ...

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    ESTIMATING THE EFFECTS OF BLASTING VIBRATIONS ON

    the slope, the frequency and the amplitude, of the ground vibration produced by blasting, is explored using numerical models in 3DEC. The numerical models were calibrated initially with data collected using seismographs installed in a surface mine operation and recording vibrations produced by an underground mine drill and blast operation.

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    Structure Response and Damage Produced by Ground

    PRODUCED BY GROUND VIBRATION FROM SURFACE MINE BLASTING by D. E. Siskind1, M.S. Stagg!,J. W. Kopp5, and C.H. Dowding4 ABSTRACT The Bureau of Mines studied blast-produced ground vibration 1 :om surface mining to assess its damage and annoyance potential, and to de1 ~rmine safe levels and appropriate measurement techniques.

    More

    Blasting - Office of Surface Mining Reclamation and ...

    The Surface Mining Control and Reclamation Act of 1977 (SMCRA) requires that coal mining be conducted in a manner that prevents injury to people and damage to public or private property during blasting. The side effects of blasting are “flyrock” a rock or rocks moving through the air or along the ground after a blast and travel beyond the blast area (security zone),

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    Damage to surface structures due to blast vibration ...

    The significance of studying, monitoring and predicting blast induced vibration and noise level in mining and civil activities is justified in the capability of imposing damages, sense of uncertainty due to negative psychological impacts on involved personnel and also judicial complaints of local inhabitants in the nearby area.

    More

    STRUCTURE RESPONSE AND DAMAGE PRODUCED BY GROUND VIBRATION

    These results were combined with damage data from nine other blasting studies, including the three analyzed previously for Bureau of Mines Bulletin 656. AB - The Bureau of Mines studied blast-produced ground vibration to assess its damage and annoyance potential, and to determine safe levels and appropriate measurement techniques.

    More

    Structure Response and Damage Produced by Ground

    PRODUCED BY GROUND VIBRATION FROM SURFACE MINE BLASTING by D. E. Siskind1, M.S. Stagg!,J. W. Kopp5, and C.H. Dowding4 ABSTRACT The Bureau of Mines studied blast-produced ground vibration 1 :om surface mining to assess its damage and annoyance potential, and to de1 ~rmine safe levels and appropriate measurement techniques.

    More

    RI 8507 Structure Response and Damage Produced by Ground ...

    The Bureau of Mines studied blast-produced ground vibration from surface mining to assess its damage and annoyance potential, and to determine safe levels and appropriate measurement techniques. Direct measurements were made of ground-vibration-produced structure responses and damage in 76 homes for 219 production blasts.

    More

    Blast Vibration and Fragmentation Control at Heavily ...

    Download Citation Blast Vibration and Fragmentation Control at Heavily Jointed Limestone Mine The presence of structural inhomogeneity in a

    More

    Blasting Vibrations - Vibrationdamage

    Feb 02, 2021  Regulation of Blasting. In theory at least, surface mine blasting is highly regulated in the U.S. by the U.S. Bureau of Mines (USBM), Office of Surface Mining (OSM). You can see the relevant regulations in the OSM Blasting Performance Standards, 30 Code of Federal Regulations, Sec. 816.61 (first page shown at right).

    More

    Reduction of Blast Induced Ground ... - Mining and Blasting

    2.1 Mine details In order to study the reduction of ground vibrations due to blasting by a trench, Venkatesh (2002) conducted field experiments in a surface coal mine with an annual production of 1.7 Mt of coal and 5.3 Mcu. m of overburden. The topsoil in this mine is about 6 m to 8 m thick comprising of Morrum/Sandy soil. The immediate formation

    More

    Vibration Standards

    Ground vibration standard limits are usually depicted graphically similarly to the U.S. Office of Surface Mining (OSM) blasting standard and USBM RI 8507 blasting study plots at right,, using log (logarithmic or non-linear) scales in both the horizontal and vertical directions.

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    (PDF) Effects of Mine Blasting on Residential Structures

    However, the blasting vibration contains P waves, S 1 waves, and surface waves transmitted in all directions from the blast source (Gad et al. 2005),

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    Blasting injuries in surface mining with emphasis on ...

    Blasting injuries in surface mining. Forty-five fatal injuries were caused by explosives in surface mines between 1978 and 1998. Coal mines accounted for 19 (42.2%) of the fatalities; metal/nonmetal accounted for 26 (57.8%). A total of 367 nonfatal injuries occurred during the same period, averaging about 17.5 injuries per year.

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    Waveform analysis in mitigation of blast-induced ...

    With the application of electronic detonators, which have a minimum delay and a delay accuracy of 1 ms, a new blasting pattern using short-delay intervals is proposed in the present study in order to improve rock breaking and control blast-induced vibrations in cutting blasting with single free surface in underground mines.

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    Development and Application of Blast Casting Technique in ...

    Blast casting is a high-efficiency technique applied in surface mines for overburden removal and results in stripping cost savings. According to ballistic theory and center-of-mass frame basic movement principles, key factors influencing blast casting effect were analyzed, which include bench height and mining panel width, inclined angle of blast holes, explosive unit

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    Effects of Mine Blasting on Residential Structures

    Major studies investigating the response of buildings to blast have been carried out in a number of countries. The U.S. Bureau of Mines studied blast produced ground vibrations from surface mining to assess its damage and annoyance potential during the 1970s and 1980s ~Siskind et al. 1980; Stagg et al. 1984!. The

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    Novel Soft Computing Model for Predicting Blast-Induced ...

    Blasting is a useful technique for rocks fragmentation in open-pit mines, underground mines, as well as for civil engineering work. However, the negative impacts of blasting, especially ground vibration, on the surrounding environment are significant. Ground vibration spreads to rocky environment and is characterized by peak particle velocity (PPV). At high PPV intensity,

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