Difference between UNSAFE ACTS, UNSAFE CONDITIONS, NEAR MISS and ACCIDENT
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UNSAFE ACTS, UNSAFE CONDITIONS, NEAR MISS and ACCIDENT
Raghav Prasad Dubey
- Apr 9, 2021
- 1 min
FAN LAWS
FAN LAWS The fan laws are a set of proportionalities relating each of the following parameters of airflow with fan speed (n), air density...
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Siddharth Urmaliya
- Apr 8, 2021
- 1 min
Motive Column :
Motive column Motive column is a height of imaginary column of air that produces a pressure equal to difference of pressure between...
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Ankit kerketta
- Apr 8, 2021
- 1 min
Roof bolt & its components
Roof Bolt:- It is made of MS or TMT steel bar & fixed in a hole by drilling vertical in roof & it grips the strata & support the...
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Siddharth Urmaliya
- Apr 7, 2021
- 1 min
NATURAL VENTILATION
Natural ventilation- Mine Airflow caused by pressure difference between upcast & downcast shaft [Because of unequal densities of weight...
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Raghav Prasad Dubey
- Apr 7, 2021
- 2 min
Remote Sensing
Remote sensing is the science (and to some extent ,art) of acquiring information about the Earth's surface without actually being in...
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Ankit kerketta
- Apr 7, 2021
- 1 min
Ignition temperature & Lag on ignition
•Ignition temperature:- The minimum/lowest temperature at which any substance or gas starts to burn. Ignition temp.of methane is usually...
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Prashant prajapati
- Apr 7, 2021
- 1 min
About BREAK DETECTORS
BREAK DETECTOR It is used to detect cracks or breaks in blasting hole in U/G Mines. Regulation require that no shot hole shall be charged...
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- Apr 7, 2021
- 1 min
CLASSIFICATION OF EXPLOSIVES AND ACCESSORIES :
CLASS 1 - GUN POWDER CLASS 2 - NITRATE MIXTURE (EXAMPLE- GN/1 , POWERFLO, GODYNE, PENTADYNE ETC.) CLASS 3- NITRO COMPOUNDS. EXAMPLE-...
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- Apr 6, 2021
- 1 min
Kuz ram model
Kuz ram model is used to predict blast fragmentation distribution in mining industry. This model uses rockmass property , Blast pattern...
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Siddharth Urmaliya
- Apr 6, 2021
- 1 min
MINE Gases & EXPOSURE LIMIT-
Composition of Atmospheric Air : Exposure LIMITS - Threshold limit values (TLV): It is the maximum/minimum concentration of constituent...
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Raghav Prasad Dubey
- Apr 6, 2021
- 1 min
ROCK BURST - Phenomenon and Triggering agents
ROCK BURST Rock burst is a case of rock failure in underground that combines suddenness and violence on a sufficiently large scale to...
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shivank pandey
- Apr 6, 2021
- 1 min
What is solid blasting and what type of initiation system we used and why ?
Solid blasting - solid blasting is a new approach blasting system by eliminating a cutting methodology for generating free face. In this...
46 views0 comments
shivank pandey
- Apr 6, 2021
- 1 min
Explosive and their types
Explosive is the mechanical mixture of substances chemical or chemical compound that can be exploded by application of fire or...
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Abhishek Sahu
- Apr 6, 2021
- 1 min
HOLE UTILISATION FACTOR
It is the ratio between length of advanced face to the Length of drilled hole. In drilling technology we consider a important factor to...
88 views0 comments
Ankit kerketta
- Apr 5, 2021
- 1 min
Difference b/w Low & High Rank of Coal
Low Rank coal. High Rank coal •Low carbon • High carbon content content •Low calorific ...
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Siddharth Urmaliya
- Apr 5, 2021
- 1 min
Some Important UNITS:
PRESSURE 1mmHg=13.6mmwg=133.3N/m²(pa) 1mmwg=9.81N/m²(pa) 1atm=10.36m of water = 760 MM of mercury 1 bar = 10⁵ pa = 1 atm 1mmwg=1kg/m²...
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Ankit kerketta
- Apr 4, 2021
- 1 min
Inertisation
It is a process by which compressed Carbon di-oxide or Nitrogen gas is circulated to underground mine through borehole or pipe. •It is...
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Siddharth Urmaliya
- Nov 11, 2020
- 1 min
Degree of gassiness based upon METHANE EMISSION-
CLASSIFICATION OF COAL MINES- Degree of gassiness (A/c to Emission of gas) 1. % of Inflammable gas on the general body of air. 1st degree ...
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Siddharth Urmaliya
- Nov 10, 2020
- 1 min
Contiguous Seam Extraction⛏
Contiguous Seam Extraction Parting Between two seam less than 9 mtrs but more than 3 mtrs.. TOP Seam ------------------------------------...
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