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blast vibration studies in surface mines

Underground vibrations from surface blasting at Jenny Mine

A maximum particle velocity of Inches per second was recorded on the mine roof. The vibration data were analyzed and comparisons were made between roof vibration levels and those recorded on the mine floor and at the ground surface. Results are compared with previous blast vibration studies.

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Blast Vibration Studies in Surface Mines CORE

Blast Vibration Studies in Surface Mines . By Kujur Badal K. Download 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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Report of Studies Being Considered and Conducted by West

study at different mine locations to verify the current data and conclusions. When investigating blasting complaints, it is difficult to forensically determine the actual blast parameters and offsite effects in the absence of seismograph monitoring. Monitoring provides sitespecific data for airblast and ground vibration from blast events.

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Resources ARblast: All Resources on Blasting A

Siskind: RI 9078 LowFrequency Vibrations Produced by Surface Mine Blasting over Abandoned Underground Mines 1986 Stachura: RI 9008 Delayed Blasting Tests to Improve Highwall Stability A Final Report 1986 Kopp: RI 9026 Effects of MillisecondDelay Intervals on Vibration and Airblast from Surface Coal Mine Blasting

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SFM Mine Blasting Study

Mine Blasting Study. Chief Financial Officer and State Fire Marshal Jimmy Patronis was sworn into office July 1, 2017. In his role as CFO and State Fire Marshal, he oversees the use of explosives for construction materials mining.

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Vibration Waihi Gold

Some mines use as much as 1000kg of explosive in each drill hole. In Waihi the charge has been reduced to as little as kilograms in areas considered more vibration sensitive. It is believed that no other open pit mines routinely use less than 15kg of explosive per blast hole.

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Analysing the Ground Vibration Due to Blasting at

In most of surface mines, blasting operation is the first. element of the ore extraction process. The primary purpose. of blasting is rock fragmentation and displacement of the. broken rock. Thus, blasting operation requires a large. amount of explosives.

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List of accepted abstracts Fragblast 12

New products and development (2) Blast design for underground long hole stope to safeguard surface Industrial structures from blast induced vibration.

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Research Article Research on Effects of Blast Casting

Research Article Research on Effects of Blast Casting Vibration and Vibration Absorption of Presplitting Blasting in Open Cast Mine LiMa, 1,2 KeminLi, 2 ShuangshuangXiao, 2 XiaohuaDing, 2 andSydneyChinyanta 2 State Key Laboratory for Geomechanics Deep Underground Engineering, China University of Mining and Technology,

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Abstract Database Search ISEE

Jun 29, 2005· Direct measurements were made of structural response, and damage was observed in residences from actual surfacemine production blasting. 2. Damage data from six additional studies, not available in 1962, were com bined with three studies analyzed by Duvall and Fogelson, plus the new Bureau of Mines measurements.

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Structure Response and Damage Produced by Ground .

STRUCTURE RESPONSE AND DAMAGE PRODUCED BY GROUND VIBRATION FROM SURFACE MINE BLASTING by D. E. Siskind1, Stagg!,J. W. Kopp5, and Dowding4 ABSTRACT The Bureau of Mines studied blastproduced ground vibration 1 :·om surface mining to assess its damage and annoyance potential, and to de1 ~rmine safe

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Understanding Blast Vibration and Airblast, their Causes

1. Introduction to Blast Vibration and Airblast When a blast is detonated, only a portion of the total energy is consumed in fracturing and shifting the rock. The remaining energy is dissipated in two forms: (a) as vibration, in the form of seismic waves traveling very rapidly within the ground and along the ground surface and,

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Characterisation of blast vibration generated from open

AbstractThe safety and stability of underground coal mine workings may be affected by opencast mines operating in close proximity. A study was conducted to investigate the level of vibration generated from opencast blasting in the nearby underground coal mine openings and at a similar distance at the surface. Eight production blasts were performed and nineteen blast vibration data sets were

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Bench Blasting Peak Particle Velocity (PPV) for

Notes on Bench Blasting Peak Particle Velocity (PPV) for Assessment of Structural Damage Potential. This tool determines peak particle velocity (PPV) for specified values of explosive charge, distance and site factors. Select Blast Type to set a range of typical values for the site factors k and b for different types of blast.

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Effect of Underground Blasting on Surface Slope Stability

Where, this dynamic loading is usually expressed in peak particle velocity (PPV) which reflects slope stability with respect to the intensity of blast vibration waves 5, 24, 25. In this paper, surface slope stability at Indian coal mine will be investigated as a function of PPV resulted from underground mine blasting.

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VIBRATIONS INDUCED BY CONSTRUCTION TRAFFIC: A .

Soil type and stratification can influence the level of vibration greatly. Vibration levels increase as soil stiffness and damping decrease. Traffic vibrations appear worst in areas underlain by a soft silty clay layer between 7 meters and 15 meters deep (Hunaidi and Tremblay, 1997).

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