effects of explosive mines

Drilling and blasting

Drilling and blasting is the controlled use of explosives and other methods such as gas pressure blasting pyrotechnics to break rock for excavation It is practiced most often in mining quarrying and civil engineering such as dam or road construction...

Chapter 8 BLAST DESIGN

Chapter 8 BLAST DESIGN Figure 8-2 Staggered pattern The economic analysis of the use of explosives is an important part of blasting operations in mining and construction Explosives are energy and the efficient use of this energy is a major factor in keeping rock blasting Analysis of the cost of explosives requires that the effects...

Are Sea Mines Still Dangerous

Aug 23 2000 0183 32 Are Sea Mines Still Dangerous Anti-personnel land mines can have as little as 3 pounds of explosives and can cost as little as 3 while sea mines typically carry 500 pounds of explosives and...

Investigating the effect of explosive type on

513 Investigating the effect of explosive type on ground vibration in Sarcheshmeh copper mine Alipour1 S Chehreghani2 HHosseinzadeh3 M Eskandarzadeh4 1- Mining Engineering Department Urmia...

EXPLOSIONS IN MINES SYSTEMATIC FAILURE

EXPLOSIONS IN MINES One of the most devastating events that can occur in a mine is an explosion Having an explosion effects of changing pressure on the auto-ignition temperature and the widening of the flammable range with elevated temperatur These relate to the continuance of a chemical chain reaction that transfers...

90 years later effects of mine disaster still felt

90 years later effects of mine disaster still felt By Mark Bennett / Tribune-Star Mark Bennett Perry died in the underground coal mining explosion at the Sullivan City Mine on...

haracterizing Explosive Effects on Underground

iii ABSTRACT A literature review and finite element analyses were conducted to characterize the effects of explosions on underground structures for explosive charges...

Mine Gases

Find additional information on Mine Gases in underground mines in these ready-to-use PowerPoint Presentations Health Effects It is also an after-product of detonated explosives and diesel engin Carbon monoxide is highly toxic to the body...

BULK EMULSION EXPLOSIVE

By using Bulk Emulsion Explosive it was possible to achieve a better breakage performance In a copper mine this resulted in a decreased powder factor and thereby less cost for the explosive In a limestone quarry an expansion of the drilling pattern lowered the drilling cost and the...

explosives and explosives effects Flashcards Quizlet

explosives and explosives effects STUDY PLAY torpedoes mines bombs depth charges and mk 133 demo kit black powder classified as a low explosive very fine powder to dense pellets can be brownish to grayish to black in color burning rate is very subjective can be affected by grain size and moisture very sensitive to ignition by...

Land Mines and Explosive Remnants of War A Global

Land Mines and Explosive Remnants of War A Global Burden to death and injury the cost of medical care resulting unemployment and loss of usable land have detrimental effects on communities as well The Convention on the UNMAS is the branch of the United Nations dedicated to addressing the problem of land mines and explosive...

Handling Explosives in Underground Mines

Handling Explosives in Underground Mines Explosives Act 1999 Mining and Quarrying Safety and Health Act 1999 Coal Mining Safety and Health Act 1999 October 2008 Version 3 possible effects of an explosion will not adversely impact upon winders electrical substations pump stations ventilation equipment or other...

11 PHASES OF A MINING PROJECT

Chapter 1 3 11 PHASES OF A MINING PROJECT There are different phases of a mining project beginning with mineral ore exploration and...

Explosive Weapon Effects Geneva International Centre

The GICHD is an expert organisation working to reduce the impact of mines cluster munitions and other explosive hazards in close partnership with mine action organisations and other human security actors We support the ultimate goals of mine action saving lives returning land to productive use and promoting development Based at the Maison de la paix in Geneva...

Explosive chemical product Britannica

Explosive any substance or device that can be made to produce a volume of rapidly expanding gas in an extremely brief period There are three fundamental types mechanical nuclear and chemical A mechanical explosive is one that depends on a physical reaction such as overloading a container with compressed airSuch a device has some application in mining...

ON EXPLOSIVE MINE GASES AND DUSTS

department of the interior united states geological survey george otis smith director 383 notes on explosive mine gases and dusts with special reference to...

EFFECT OF CHARGE DIAMETER ON EXPLOSIVE

EFFECT OF CHARGE DIAMETER ON EXPLOSIVE PERFORMANCE by Harry R Nicholls 1 and Wilbur 1Duvall 2 ABSTRACT The Bureau of Mines studied the effect of varying the diameter of explo 173...

Dangers of Toxic Fumes from Blasting

Dangers of Toxic Fumes from Blasting By Richard J Mainiero Marcia L Harris This paper reviews the potential hazards posed by the toxic fumes produced by detonating explosives in surface mining and construction operations Blasting operations produce both toxic and nontoxic Figures 1 and 2 illustrate the effect of ANFO fuel oil...

The Most Common Accidents in the Mining Industry

The explosive or pyrotechnical products that remain in the ground or in the muckpile might be triggered by any mechanical effect during the digging milling or crushing stages of the mining process causing injuries or fatalities to blasters or operators...

Effects of rock dusting in preventing and

Effects of rock dusting in preventing and reducing intensity of coal mine explosions Authors Authors and affiliations the less is the possibility for the coal dust to participate in mine explosion Therefore the heat sink effect of the proper rock dusting can greatly reduce the possibility of coal dust ignition in a mine explosion event...

Learn About the Different Types of Explosives Used in Mining

Propellant for gun bullet or rockets fireworks and special effects are the most common applications for low explosiv But even though high explosives are safer low explosives are still in use today in some countries for mining...

Environmental Impact Statement for Mining with

Environmental Impact Statement for Mining with Explosives A QUANTITATIVE METHOD safety social relationship air and water quality flora and fauna The effect of the various impacting factors from the mining activities both directly and indirectly was then calculated for each be one of the most significant IMPACTING FACTORS for open...

Dangers of Abandoned Mines Abandoned Mine Land

Dangers of Abandoned Min IF YOU ENCOUNTER AN ABANDONED MINE DO NOT ATTEMPT TO ENTER Inside old mines shafts can be camouflaged by debris or hidden by darkness in the mine Explosives and toxic chemicals Blasting caps dynamite and chemicals were often left behind when the workings were abandoned Explosives...

Mine Gases Questions and Answers

A dangerous mine atmosphere is one that is or is likely to become poisonous to breathe deficient in oxygen or explosive Q What is the specific gravity of normal air...

Effect of Decreasing Barometric Pressure on Explosive

The Publishing Co Dordrecht-Holland fact that most of major mine explosions occurred during 7 S Wasilewski Influence of barometric pressure or after a sudden drop in barometric pressure supports this changes on ventilation conditions in deep mines barometric effect on the mine atmosphere...

Effect of Blasting Air Overpressure on Residential

A Summary of US Bureau of Mines Research When explosives are used to break rock in a mine or construction project the blast produces both...

Effect of variation in gas distribution on explosion

In order to investigate the effect of variation in the distribution of gas on explosion propagation characteristics in coal mines experiments were carried out in two different channels with variation in gas concentration and geometry...

12 Environmental Effects of Coal Mining

12 Environmental Effects of Coal Mining Kevin Hinton E911 >Our Environment >Observations Coal is a fossil fuel that s burned to generate electricity and heat or liquefied to produce gas and diesel fuel Coal begins as plant matter that s trapped underground for centuries and over time becomes petrified due to lack of exposure to air...

The impact of explosive 2 violence on mental health

1 Major disasters such as war have a significant impact on mental health and psycho-social well-being1 Events like physical assault serious bodily harm experiencing or witnessing horrific injury...

MEASUREMENT AND ANALYSIS OF THE EFFECT

MEASUREMENT AND ANALYSIS OF THE EFFECT OF GROUND VIBRATIONS In addition the effect of explosive initiation method on the level of ground vibrations and airblast is investigated This objective has been attained The United States Bureau of Mines USBM in RI 8507 concluded that particle velocity is...

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