impact of mine blasting point on power line

The impact of blasting on the environment in the open pit mining

In the mass blasting at the open pits of metal ore, there is a rise of cloud composed of gases and dust, blasting mining products, which have negative effects on the surrounding environment. This work presents the calculations of a cloud size, concentration of …

Effects of Mine Blasting on Residential Structures | Journal of Performance of Constructed Facilities …

The ground vibrations and air blast produced by blasting are often felt by residents surrounding the mines. There has been a trend for regulatory authorities, especially those concerned with the environment, to impose low limits on blast vibration levels in response to community pressure, based on human perception and response to vibration.

[PDF] Effects of Mine Blasting on Residential Structures

 · Blasting is common in the coal industry to remove rock overburden so that the exposed coal can be mechanically excavated. The ground vibrations and air blast produced by blasting are often felt by residents surrounding the mines. There has been a trend for regulatory authorities, especially those concerned with the environment, to impose low limits on blast …

Blasting costs

 · The higher energy of Vistis 250 seemed to deliver much finer, more consistent fragmentation than the conventional Fortis Advantage blasts. However, while the material was most definitely finer, the method used to assess the impact of Vistis was fundamentally flawed.

The blasting in underground mining: The effect of doing things …

Blasting is the initial stage of rock comminution. It preconditions the material for all the following operations until the processing. The goal is to increase the efficiency and decrease the cost in each of these stages. It is because of it that specialists in the area aim for the freed energy in the blasting to be transferred efficiently.

Impact of blasting in productivity and safety in mining

 · A focus on Improvement in Blasting is revolutionizing the performance of mining companies with increased safety. Blasting is the most cost effective way to fracture rock. Therefore effective blasting reduces the costs of consumer goods such as coal, electricity, aluminum, copper and many other products manufactured from mined resources.

Managing impacts of open cut mine blasting

 · Wind and solar power wanted for aluminium refineries. EnviroSuite''s Matt Scholl discusses how predictive software has been effective in managing the impacts of blasting activities. Open cut ...

The Effects of Blasting on Crushing and Grinding Efficiency and Energy Consumption

The work input shown for blasting is calculated by the Bond equation. The actual energy input is .33 kg/ton, or .31 kwh/ton. Thus, the efficiency compared to Bond is 77 percent. This is likely due to the variable nature of rock and the transmission of the energy

Impact Analysis of Blasting Vibration on the Slope and Dump

The stability of slope is also a very important issue in the process of open pit mining while the vibration mining of blasting has some impact on the stability of dump and slope ( Xing, 2004; Zheng et al ., 2011; Li et al ., 2010; Huang et al ., 2011 ). Therefore, the study of blasting vibration''s influence on the stability of dump and slope ...

Breaking down the legalities of blasting within 500 m of structures

 · Consulting engineers should compile a report of risk compliance to blast within a 500 m radius from the identified structures. A drill and blast procedure are required when blasting is to be carried out within 500 m to ensure drilling and blasting is executed as designed. A sketch plan is also required to indicate the distance from the blasting ...

Controlling Adverse Environmental effects Of Blasting Operations …

Keywords: Blast Design, Environmental Impacts, Software for Predictions, Control of Blasting Impacts, Blast Information 1.0 Introduction Blasting operations cause several adverse environmental effects: ground vibrations, airblast, flyrock, generation of fines, fumes ...

BLAST VIBRATION STUDIES IN SURFACE MINES

4 Details of a blast vibration study report of Jindal power open cast coal mine 22 5 Peak Particle Velocity (PPV) observed for various blasts at Jindal power open cast coal mine 23 6 The safe charge per delay recommended to keep the vibration level below 527

Blasting Methods in Mining and Quarrying – GRT review

 · Bench blasting is a common technique used in open-pit mines. It is blasting in a vertical or sub-vertical hole or a row of holes towards a free vertical surface. More than one row of holes can be blasted in the same round. A time delay in the detonation between the rows creates new free surfaces for each row.

The blasting in underground mining: The effect of doing things well. – IDMining

Blasting is the initial stage of rock comminution. It preconditions the material for all the following operations until the processing. The goal is to increase the efficiency and decrease the cost in each of these stages. It is because of it that specialists in the area aim for the freed energy in the blasting to be transferred efficiently.

The stability analysis of blasting excavation in short distance on water diversion tunnel underpassing Jinduicheng Molybdenum Mine

To investigate effect induced by blasting in Jinduicheng molybdenum mine on the Dongchuan river diversion tunnel, the tunnel vibration has been monitored. According to the actual conditions, the corresponding numerical simulation is performed in FLAC3D, and dynamic response of the lining and surrounding rock of the diversion tunnel caused by blasting load is analyzed. The …

Drilling and Blasting in Underground Mining

 · Drill and blast design is an important part of the mine planning and management, with major impact on safety and efficiency. Underground mines usually have designated primary times daily. Primary blasting is carried out in both development and stoping. Working safety in underground mining is related to blast operations, rock conditions and ...

Modelling the effect of blast-induced vibrations on the stability of a faulted mine …

Modelling the effect of blast-induced vibrations on the stability of a faulted mine slope H. Bazzi1, H. Noferesti2, and H. Farhadian2 Synopsis Blasting, which is carried out regularly in open-pit mines, causes considerable ground vibration in the vicinity of the

Mine blasting vibration and its effects on buildings and structures …

The blast design was then altered by using different delay sequences and the highest amplification experienced in subsequent blasts was 3×. An FFT of a single trial shot is shown in Figure 2. For a single charge, a whole-of-waveform FFT provides useful

Blasting Impact on Environment and their Control Measure Techniques in Open Cast Mining

of blasting control as well as whole mining operation. These tools will help us in all the stage of mining operation including drilling & Blasting to the production of minerals. Also the control blasting technique can be used to utilize the blasting energy and will help

Rock blasting for mining

 · 79 Trim (Cushion) Blasting, Smooth blasting (contour or perimeter blasting) for underground mines and muffle blasting as a solution to prevent fly-rock from damaging human habitants and structures. Presplitting Presplitting is a technique that involves loading a single row of holes that have been drilled along a desired highwall crest or excavation line.

Blasting Techniques Used in Underground and Opencast Mines | Mining Technology

Pull per round – 1.06 m. Coal yield/kg of explosive – 2.0 te (soligex) Coal yield/detonator – 0.9 te. One driller and two helpers drill 60-70 holes in a shift of 8 hours; one shot firer, 2 explosive carriers and 1 stemming material carrier constitute the blasting crew and fire nearly 60 shots in a shift of 8 hours.

Controlling Adverse Environmental effects Of Blasting Operations Using Information Technology

Keywords: Blast Design, Environmental Impacts, Software for Predictions, Control of Blasting Impacts, Blast Information 1.0 Introduction Blasting operations cause several adverse environmental effects: ground vibrations, airblast, flyrock, generation of fines, fumes ...

FOUNTAIN HEAD GOLD MINE, NORTHERN TERRITORY BLASTING IMPACT ON RAILWAY LINE …

PNX-2101_FountainHeadGold_BlastImpact.docx 5 TERROCK Table 3 – Ground vibration predicted levels (Kv) = 1140 Location Distance PPV Level Gas Pipeline 380m 5.6mm/s Railway 550 m 3.1 mm/s The actual site constant (K v) is unlikely to be greater

Blasting Impact Simulation Test and Fragmentation Distribution Characteristics in an Open-Pit Mine …

The calculation formula of the blasting shock wave is as follows [19–21]: where α and K are the empirical coefficients, 1.31 and 0.67, respectively; η is the attenuation index, 0.49; Q is the charge quantity, kg; and R is the distance from a certain point …

Predicting the Impact of Rock Blasting on Building Structures at …

Blast 20 1.28 impact prediction indicates that blasting at the Father 15 0.95 12 0.76 Brown pit has a potential of It is instantaneous charges is summarised in Table 1.

Applicability of Controlled Blasting in Large Opencast Mine at Dragline Bench Blast …

 · The diameter of blast holes was approximately 269 and 311 mm for dragline benches. The explosives loaded in a hole varied from 1,150 to 2,300 kg for dragline blast. Total explosive weight detonated in a blast round varied between 1279 to 84,000 kg. The vibration measuring distances ranged from 200 to 5,480 m.

THE IMPACT OF BLASTING ON THE ENVIRONMENT IN THE OPEN PIT MINING…

No. 3-4, 2017 Mining & Metallurgy Engineering Bor169 and raised dust threaten the environment by dangerous concentrations of gases and har-mful dust. On the basis of this, it can be es-tablished that a direct impact on the envi-ronment due to the wind

Chapter 11 SPECIALIZED BLASTING TECHNIQUES

170 sometimes served by arming the explosives in a shelter before starting on the control route. Under no circum-stances should the ignitor be put on the fuse until just before tossing the charge. Arming Cast Primer - Figure 11-3 shows the steps for double arming cast primers gure 11-3 shows the steps for double arming cast primers.

Figure 3 from ENVIRONMENTAL IMPACT OF MINE BLASTING

Figure 3. Variation of peak particle velocities in basic rocks of limestone on blasting level (H=0): 1 - regression equation line, 2 - upper 95% confidence line. - "ENVIRONMENTAL IMPACT OF MINE BLASTING"

Impact of blasting in productivity and safety in mining

 · Blasting has a significant impact on face condition, equipment effectiveness, haul road housekeeping, dump/ coal depot maintenance and smooth operation cycle in the mine. A good blasting not only increases the over all production efficiency but also enhances the performance of HEMM and CHP by giving more output and trouble free dispatch of coal.

Effects of Mine Blasting on Residential Structures

 · Many scientists confirmed that the adverse effects caused by blasting, especially PPV, are mainly caused by the useless energy of explosives (accounting for 70 …

(PDF) ENVIRONMENTAL IMPACT OF MINE BLASTING

 · Abstract and Figures. The blasting is the predominating method o f breaking rocks in various surface and underground mines. At the same time …

Effects of mine blasting on residential structures (Journal …

 · The U.S. Bureau of Mines and the State of Indiana cooperated with AMAX Coal Company and its consultants to determine the effects of coal mine overburden blasting on nearby pipelines. Five pressurized 76-m pipeline sections were installed on the Minnehaha Mine highwall near Sullivan, IN for testing to failure.

Effects of Mine Blasting on Residential Structures

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!.

Impact of rock blasting on mining engineering

Comminution costs represent an important contribution, 30-50% of total mining operation costs. (Radziszewski, 2000). It has been well known that rock fragmentation by …

Environmental effects of blasting and their control (Conference) …

 · Five major environmental effects of rock blasting are ground vibrations, airblast, flyrock, dust and fumes. What makes them {open_quotes}environmental {close_quotes} as opposed to occupational health and safety issues is that their impacts are felt off the mine, quarry or construction site. For some impacts, safe zones are defined through ...

Blasted: Homeowners near mine seek recourse for property damage

 · The homeowners can pursue a state-administered process, or seek compensation on their own through a civil lawsuit or an insurance claim. Typically, however, inspectors find that the blasts were within legal limits, even when homeowners witness damages to their property that coincide with the explosions.

Spotlight on mine blasting

 · Spotlight on mine blasting. Anthony Konya (right) with MERA Employee (left) T-13 Plant, Mongolia, holding first emulsion chubs produced at a new emulsion explosive plant which has since provided ...