Importance of Blast-Design in Reduction of Blast-Induced Vibrations

AJAKA; Ebenezer Oyedele; ADESIDA; Patrick Adeniyi

doi:doi:10.11648/j.ijsts.20140203.14

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Importance of Blast-Design in Reduction of Blast-Induced Vibrations

AJAKA, Ebenezer Oyedele, ADESIDA, Patrick Adeniyi

Published in International Journal of Science, Technology and Society (Volume 2, Issue 3)

Received: 6 May 2014 Accepted: 17 May 2014 Published: 30 May 2014

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Abstract

The dissipated energy generated during blasting creates environmental problems in the form of ground vibration, air overpressure and flyrock. With increasing mining and construction activities in areas close to human settlements, ground vibration has become a critical environmental issue as it can cause human annoyance and structural damage. The magnitude of ground movement was measured in term of Peak Particle Velocity (PPV) with the aid of USS 2000-DK Seismograph. Site constant K, and site geological factor m were determined for both quarries by plotting the log-log graph of the maximum PPV against scaled distance. The data collected for the twenty blasting activities in each of the quarry sites have shown that the peak particle velocities (PPV) recorded varied directly with the charge weight per delay but inversely with scaled distance (SD) and shot to monitored distance for both selected sedimentary and igneous rock. A comparative analysis between the results obtained for constant charge per delay of 1000 kg, and monitoring distance of 500 m, 750 m and 1000 m were carried out. The magnitude of vibration for limestone is about twice that of granite at 300 m from the shot point and increase to about five times at 2200 m. This is evident when considering the main mechanisms which contribute to ground motion dissipation such as; damping of ground vibrations which cause lower ground vibration frequencies with increasing distance, discontinuities causing reflection, refraction and diffraction, internal friction causing frequency dependent attenuation, which is greater for coarser grained rocks and geometrical spreading of rock.

Published in	International Journal of Science, Technology and Society (Volume 2, Issue 3)
DOI	10.11648/j.ijsts.20140203.14
Page(s)	53-58
Creative Commons	This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.
Copyright	Copyright © The Author(s), 2014. Published by Science Publishing Group

Keywords

Blast-Induced Vibrations, Scaled Distance, Peak Particle Velocity, Seismograph, USBM Predictor Equation

References

[1]	Abdel-Rasoul, E. I., (2000). Assessment of the particle velocity characteristics of blasting vibrations at Bani Khalid quarries. Bulletin of the Faculty of Eng., Vol. 28, No. 2, Assiut University, Assiut, Egypt, pp. 135 - 150.
[2]	Douglas, E.L., (1989). An Investigation of Blasting Criteria for Structural and Ground Vibrations pp.1-1
[3]	Dowding, C.H., (1985). Blast vibration monitoring and control. Englewoods Cliffs, NJ: Pren-tice-Hall; pp. 288–90.
[4]	Dowding, C.H., (1992). Suggested Method for Blast Vibration Monitoring. Int J Rock Mech, January, 145-156.
[5]	Federal Environ-mental Protection Agency, (1991). Interim Guidelines and Standard for Industrial Effluents, Gaseous Emission and Hazardous Waste in Nigeria. pp. 52
[6]	Pal, B. K. and Brahma K.C., (2010). An Application of Regression Model for Evaluation of Blast Vibration in an Opencast Coal Mine – a Case Analysis, Canadian Journal on Com-puting in Mathematics, Natural Sciences, Engineering & Medicine Vol. 1, No. 3, April 2010 pp106-109.

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AJAKA, Ebenezer Oyedele, ADESIDA, Patrick Adeniyi. (2014). Importance of Blast-Design in Reduction of Blast-Induced Vibrations. International Journal of Science, Technology and Society, 2(3), 53-58. https://doi.org/10.11648/j.ijsts.20140203.14

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ACS Style

AJAKA; Ebenezer Oyedele; ADESIDA; Patrick Adeniyi. Importance of Blast-Design in Reduction of Blast-Induced Vibrations. Int. J. Sci. Technol. Soc. 2014, 2(3), 53-58. doi: 10.11648/j.ijsts.20140203.14

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AMA Style

AJAKA, Ebenezer Oyedele, ADESIDA, Patrick Adeniyi. Importance of Blast-Design in Reduction of Blast-Induced Vibrations. Int J Sci Technol Soc. 2014;2(3):53-58. doi: 10.11648/j.ijsts.20140203.14

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@article{10.11648/j.ijsts.20140203.14,
  author = {AJAKA and Ebenezer Oyedele and ADESIDA and Patrick Adeniyi},
  title = {Importance of Blast-Design in Reduction of Blast-Induced Vibrations},
  journal = {International Journal of Science, Technology and Society},
  volume = {2},
  number = {3},
  pages = {53-58},
  doi = {10.11648/j.ijsts.20140203.14},
  url = {https://doi.org/10.11648/j.ijsts.20140203.14},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijsts.20140203.14},
  abstract = {The dissipated energy generated during blasting creates environmental problems in the form of ground vibration, air overpressure and flyrock. With increasing mining and construction activities in areas close to human settlements, ground vibration has become a critical environmental issue as it can cause human annoyance and structural damage. The magnitude of ground movement was measured in term of Peak Particle Velocity (PPV) with the aid of USS 2000-DK Seismograph. Site constant K, and site geological factor m were determined for both quarries by plotting the log-log graph of the maximum PPV against scaled distance. The data collected for the twenty blasting activities in each of the quarry sites have shown that the peak particle velocities (PPV) recorded varied directly with the charge weight per delay but inversely with scaled distance (SD) and shot to monitored distance for both selected sedimentary and igneous rock. A comparative analysis between the results obtained for constant charge per delay of 1000 kg, and monitoring distance of 500 m, 750 m and 1000 m were carried out. The magnitude of vibration for limestone is about twice that of granite at 300 m from the shot point and increase to about five times at 2200 m. This is evident when considering the main mechanisms which contribute to ground motion dissipation such as; damping of ground vibrations which cause lower ground vibration frequencies with increasing distance, discontinuities causing reflection, refraction and diffraction, internal friction causing frequency dependent attenuation, which is greater for coarser grained rocks and geometrical spreading of rock.},
 year = {2014}
}

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TY  - JOUR
T1  - Importance of Blast-Design in Reduction of Blast-Induced Vibrations
AU  - AJAKA
AU  - Ebenezer Oyedele
AU  - ADESIDA
AU  - Patrick Adeniyi
Y1  - 2014/05/30
PY  - 2014
N1  - https://doi.org/10.11648/j.ijsts.20140203.14
DO  - 10.11648/j.ijsts.20140203.14
T2  - International Journal of Science, Technology and Society
JF  - International Journal of Science, Technology and Society
JO  - International Journal of Science, Technology and Society
SP  - 53
EP  - 58
PB  - Science Publishing Group
SN  - 2330-7420
UR  - https://doi.org/10.11648/j.ijsts.20140203.14
AB  - The dissipated energy generated during blasting creates environmental problems in the form of ground vibration, air overpressure and flyrock. With increasing mining and construction activities in areas close to human settlements, ground vibration has become a critical environmental issue as it can cause human annoyance and structural damage. The magnitude of ground movement was measured in term of Peak Particle Velocity (PPV) with the aid of USS 2000-DK Seismograph. Site constant K, and site geological factor m were determined for both quarries by plotting the log-log graph of the maximum PPV against scaled distance. The data collected for the twenty blasting activities in each of the quarry sites have shown that the peak particle velocities (PPV) recorded varied directly with the charge weight per delay but inversely with scaled distance (SD) and shot to monitored distance for both selected sedimentary and igneous rock. A comparative analysis between the results obtained for constant charge per delay of 1000 kg, and monitoring distance of 500 m, 750 m and 1000 m were carried out. The magnitude of vibration for limestone is about twice that of granite at 300 m from the shot point and increase to about five times at 2200 m. This is evident when considering the main mechanisms which contribute to ground motion dissipation such as; damping of ground vibrations which cause lower ground vibration frequencies with increasing distance, discontinuities causing reflection, refraction and diffraction, internal friction causing frequency dependent attenuation, which is greater for coarser grained rocks and geometrical spreading of rock.
VL  - 2
IS  - 3
ER  -

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Author Information

AJAKA
Ebenezer Oyedele
ADESIDA
Patrick Adeniyi

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Plain Text BibTeX RIS

APA Style

AJAKA, Ebenezer Oyedele, ADESIDA, Patrick Adeniyi. (2014). Importance of Blast-Design in Reduction of Blast-Induced Vibrations. International Journal of Science, Technology and Society, 2(3), 53-58. https://doi.org/10.11648/j.ijsts.20140203.14

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ACS Style

AJAKA; Ebenezer Oyedele; ADESIDA; Patrick Adeniyi. Importance of Blast-Design in Reduction of Blast-Induced Vibrations. Int. J. Sci. Technol. Soc. 2014, 2(3), 53-58. doi: 10.11648/j.ijsts.20140203.14

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AMA Style

AJAKA, Ebenezer Oyedele, ADESIDA, Patrick Adeniyi. Importance of Blast-Design in Reduction of Blast-Induced Vibrations. Int J Sci Technol Soc. 2014;2(3):53-58. doi: 10.11648/j.ijsts.20140203.14

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@article{10.11648/j.ijsts.20140203.14,
  author = {AJAKA and Ebenezer Oyedele and ADESIDA and Patrick Adeniyi},
  title = {Importance of Blast-Design in Reduction of Blast-Induced Vibrations},
  journal = {International Journal of Science, Technology and Society},
  volume = {2},
  number = {3},
  pages = {53-58},
  doi = {10.11648/j.ijsts.20140203.14},
  url = {https://doi.org/10.11648/j.ijsts.20140203.14},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijsts.20140203.14},
  abstract = {The dissipated energy generated during blasting creates environmental problems in the form of ground vibration, air overpressure and flyrock. With increasing mining and construction activities in areas close to human settlements, ground vibration has become a critical environmental issue as it can cause human annoyance and structural damage. The magnitude of ground movement was measured in term of Peak Particle Velocity (PPV) with the aid of USS 2000-DK Seismograph. Site constant K, and site geological factor m were determined for both quarries by plotting the log-log graph of the maximum PPV against scaled distance. The data collected for the twenty blasting activities in each of the quarry sites have shown that the peak particle velocities (PPV) recorded varied directly with the charge weight per delay but inversely with scaled distance (SD) and shot to monitored distance for both selected sedimentary and igneous rock. A comparative analysis between the results obtained for constant charge per delay of 1000 kg, and monitoring distance of 500 m, 750 m and 1000 m were carried out. The magnitude of vibration for limestone is about twice that of granite at 300 m from the shot point and increase to about five times at 2200 m. This is evident when considering the main mechanisms which contribute to ground motion dissipation such as; damping of ground vibrations which cause lower ground vibration frequencies with increasing distance, discontinuities causing reflection, refraction and diffraction, internal friction causing frequency dependent attenuation, which is greater for coarser grained rocks and geometrical spreading of rock.},
 year = {2014}
}

Copy | Download

TY  - JOUR
T1  - Importance of Blast-Design in Reduction of Blast-Induced Vibrations
AU  - AJAKA
AU  - Ebenezer Oyedele
AU  - ADESIDA
AU  - Patrick Adeniyi
Y1  - 2014/05/30
PY  - 2014
N1  - https://doi.org/10.11648/j.ijsts.20140203.14
DO  - 10.11648/j.ijsts.20140203.14
T2  - International Journal of Science, Technology and Society
JF  - International Journal of Science, Technology and Society
JO  - International Journal of Science, Technology and Society
SP  - 53
EP  - 58
PB  - Science Publishing Group
SN  - 2330-7420
UR  - https://doi.org/10.11648/j.ijsts.20140203.14
AB  - The dissipated energy generated during blasting creates environmental problems in the form of ground vibration, air overpressure and flyrock. With increasing mining and construction activities in areas close to human settlements, ground vibration has become a critical environmental issue as it can cause human annoyance and structural damage. The magnitude of ground movement was measured in term of Peak Particle Velocity (PPV) with the aid of USS 2000-DK Seismograph. Site constant K, and site geological factor m were determined for both quarries by plotting the log-log graph of the maximum PPV against scaled distance. The data collected for the twenty blasting activities in each of the quarry sites have shown that the peak particle velocities (PPV) recorded varied directly with the charge weight per delay but inversely with scaled distance (SD) and shot to monitored distance for both selected sedimentary and igneous rock. A comparative analysis between the results obtained for constant charge per delay of 1000 kg, and monitoring distance of 500 m, 750 m and 1000 m were carried out. The magnitude of vibration for limestone is about twice that of granite at 300 m from the shot point and increase to about five times at 2200 m. This is evident when considering the main mechanisms which contribute to ground motion dissipation such as; damping of ground vibrations which cause lower ground vibration frequencies with increasing distance, discontinuities causing reflection, refraction and diffraction, internal friction causing frequency dependent attenuation, which is greater for coarser grained rocks and geometrical spreading of rock.
VL  - 2
IS  - 3
ER  -

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