Sunday, May 16, 2021

FEAR KILLS ZEAL AND ABILITY

NO MORE FEAR: EXAM IS FOR ASSESSMENT AND NOT TO BE FEARED (with testimony)

BY: GIANT MINER

Is there anything to fear than GOD? NO, not even the fear of exam!
Fear is a great barrier to many students and not only affect them emotionally but also close the door of mind to remember things in exam.
Human soul is made of three compactments, 
The mind (room of knowledge)
The Emotion
The will (Decision divider) all connected.
Fear makes student fail because they loss access to their mind which is the base of information for breaking the barrier of examination and test.
If you never experienced it you won't understand, every student wants to have good grade, 98% is fully prepared but not all will finally actualize their expectation this is a fact!
Fear is one of the cloud of limitation when sitting for examination, you may even be prepared but still you have that mind that the question may likely not be from what you have read all over night, imagine!
Fear is a system that kills Christian's Faith, it shut the door of believe and damage the consciousness of God's possibilities available for man.
Fear had exist from the beginning even the fear from disobedient on Adam and Eve after eating the fruit.
But we have not receive the spirit of fear but that of sound mind whereby we cry Abba Father..
I myself was always a victim of fear on many of my exam days this is not limit to even professors.
But later I understand that this so  called fear is a brick mould in sequence even from the first day you print out your course form.
I sometimes feel worried after checking my course load for the semester. The mind of human being is sensitive and have ability to conceive both positive and negative thoughts.
You won't break this brick until you have the mind of christ... 
Ways to conquer fear
We human has an inbuilt fear of failure and criticism naturally.
There are many ways to bury fear of failure which is the base source of  examination fear. Even though not all students like education but no body wants to fail!!
The very first way to overcome the fear of examination is by engaging the holy spirit in your academics.
The holy Spirit is the helper given to us by our creator to help us in all things both spiritual, academical and in all things.
The Lord want us to glorify him in our academics Matt 5:13-16, Isaiah 60:1-2, you have sometime in you that will make you soar above the cloud of fear.
THE HOLY SPIRIT is our senior partner, he is our teacher, he is the thought of our lecturers and he can easily reveal their mind to us.
Many believers never believe the fact that the holy Spirit speaks and can be called upon to Assist in anything even academics.
You have the auction from above you know all things that was apostle Paul confession in 1John 2:20.
It takes faith to recieve this fact, the spirit of God is in us, this same spirit dwells in all men and even those in different countries.
The extent to which you manifest the spirit is the limit to which you can enjoy his full assistance.
Many times fear comes on us in exam Hall  as a result of lack of knowledge about the question.
I submit to you that if you know all the questions ask you will be as bold as a lion and even hear the sound of joy within you as you behold the question.
During 2021 academic Sunday in CACCF fellowship I was to answer this great question about fear, I was so much caught up that I gave the summary of why fear comes in one's mind during exams and test as lack of preparation.
This is the fact, you lack knowledge about the exam question because you haven't effectively and efficiently prepared for the exam. There is different between doing things right and doing the right thing.
Your inability to prepare may be as a result of time factor or lack of access to information both which can be helped by the holy Spirit.
The gift of revelation is the skill manifest by a man through the help of the holy Spirit. The gift belongs to him and he choose to manifest it if we want him to for the glory of God.
This gift of revelation is in three dimension (1 cor: 12)
1. Gift of word of knowledge: The holy spirit through this give you sufficient information to study, to prepare and to explore your handout.
2. Gift of word of wisdom: The holy spirit through this help you to understand the direction to get the best of the course, how to put things when answering the questions, direction to studying among others. 
3. Gift of discernment: You through this enjoy a picture of how the question looks like, what you will be asked, where you will be examined among others.
With the information, direction and discernment data, you don't have to fear anything but just relax and boldly make JESUS proud in your academics.
Many don't have the spirit because they are not yet born again, many have it but they don't engage him, we are limited by what the holy Spirit is capable of doing even in our academics.
As a worker in the vineyard of God someone may have short time to study truly because of fellowship activities which must be First (matt6:33),  but you overcome fear when the spirit gives you all you need, you have the easiest access to the holy spirit help than everyone anytime you use your time for GOD, the holy spirit is the one to optimize your time for you and make you recover all for greater glory.
God knows we will surely need to overcome fear, he surely knows we will need help in our academics that is why we have the person of the holy Spirit to help.
The holy spirit is not a story to talk about, he is real, you speak to him and he will speak to you.
But you can't engage him when you don't even know him, when you are not even a son, when you don't even believe Jesus the source and the finisher of our faith.
The first thing to overcome fear is to get the holy Spirit and you can access him by becoming the son of God. And how can someone become the son of GOD? through acknowledging your sin, confessing them, ask for forgiveness with believe that Jesus Christ had come and had died for us all that we should no longer be a slave to sin. Confess Jesus as you Lord and savior.
With this done, talk to the holy Spirit which is the inheritance of salvation (Ephesians 1) and he will respond to you. You sustain him through the fruit of the spirit, and feeding on the bread of life.
My part which I must not forsake: Preparation
Finally, the holy Spirit is not a magician you have your part to play by preparing. Proper preparation prevent poor performance (5ps' of shift).
You have to be diligent in studying, you must study strategically and consistently.
Be committed and be consistent
The holy Spirit will never engage in zero preparation, he will give you the address, the direction, the energy and the best way to get there you do the traveling.
If you travel less you get less if you travel far you get the fattest. What ever you sow you will reap.
But that little, he will always multiply it for you at all time.
Trust in the Lord and conclude not on your own underhandling, in all your ways acknowledge him and he will direct your path (academic, reading, writing) proverb 3:5-6

Testimony About the Holy spirit
 
I was to write a test one day thou I have prepared fully as the Lord was so faithful to me, on getting to the hall there was a question which is so strange and I wasn't able to decode it.
Then I stopped and pray shortly asking the holy Spirit to help me, then he responded and said start from those you can do, when you get to the one you don't know I will take over. Truly when I got to the unknown question, he takes over and solved it for me in a miraculous way. I was so confused even after the test that when the script came out I was the only one who answered it correctly.
The miracle there is that, when I checked through the answer, it wasn't my strategy of solving question, it was a total approach differ from my statics and sense of thinking.
The holy spirit kills fear and help our weakness.
We are sons of God and not slave, we have access to Dominion through the spirit of God in us.

The Lord bless you in Jesus name

Tuesday, May 4, 2021

SUBDRILL AN IMPORTANT PARAMETER IN BLASTING

 
SUBDRILL: AN IMPORTANT PARAMETER IN BLASTING
BACKGROUND OF THE ARTICLE
To a non mining Engineer or Blasting Engineer, the question must have come to you most time that, 
1. why subdrill in Blasting, what is the important?
2. Why most subdrill be included in of rock blast and which formation will subdrill not required?
This article provides brief answers to the above knowledge gap.
1. INTRODUCTION
Subdrill by definition is the additional hole length included to the Bench height to improve Blasting result and Bench safety. Most drillhole blasted in the mine especially in small scale miners and artisanal blasting Operation don't include subdrill because they tend not to know it important.
As I have define earlier, there is a specified bench height design to mine an orebody, but the extended hole length beyond the bench height is known as subdrill length. Subdrill is one of the most important Blasting parameters that is use to improve not just the fragmentation rate at the bench toe but also to enhance safety by producing a stable and smooth bench floor and toe.
What are the important of subdrill in Blasting?
The following are the major important of subdrill in blast design:
1. subdrill improve fragmentation at the bench floor
2.subdrill assist the blaster in planing for next blast operation.
3. It aid the mine slope from failing.
4. Subdrill produce a smooth and reliable new bench floor during blasting.

As I have explained in my previous video on Explosive and Rock Interaction part 1&2 and in my journal publication on effect of charge distribution on fragmentation (Taiwo, 2022), I explained that the efficiency of rock fragmentation depends on; powder weight, Burden distance which are few but the major factor that determines the rate of micro-fracturing in rock before explosion. Explosive release shock Energy for fracturing and gas Energy.
The efficiency and performance of the gas Energy depends on the fracturing rate during shock energy distribution according to Sushil Bhandari (1997). The fracturing rate is maximum at tensile slabbing because rock is weak in tensile than in compression (check Ash&Konya,1978 work)
At the toe of a mine bench, the tensile strength of the rock or ore deposit is high due to small or no free face available. This reduce the efficiency of Explosive shock an gas Energy at the toe resulting into poor fragmentation and rough floor. Most time the oversize and boulders are formed from the bench toe, in other cases like underground mine you have put out with sockets in Boulders. 
You have boulder and sockets (hollow cavity) in rocks due to pull out of Explosive charge because the Explosive released shock wave Energy is lower than the rock intact Strength at the toe level. What about this! at the point of Detonation, the shock wave fracture by compression at the crushing zone round the hole collar because the Explosive compressive strength is high at initiation point, the wave further fracture by shearing due to rock Anisotropic and heterogenous nature then fracture by tensioning through tensile slabbing using change in medium impledence and Sonic Velocity. At the bench toe, the rock is intact at all dimension, there's less weak zone.
The Explosive energy is also weak and exhausted, because the primer charge or bottom charge make use of it release energy to initiate the column charge and also perform fracturing, this makes the toe fragmentation becomes difficult and in efficient. Also, note that, the base charge is initiate first and the energy only split without complete tensile slabbing because of unavailability of free face for shock wave reflection, this makes the bench toe yield poor fragmentation.
With this, subdrill provide additional charge length, Explosive charge weight at the bench toe to overcome the high tensile strength. It confirmed that the longer the drill hole the higher the powder factor, the higher the blast powder factor, the higher the Explosive energy (shock and gas) release at Detonation. Having subdrill help to provide sufficient energy which is ultilize to intoxicate initiation and also gear up tensioning time at the CJ plane to ensure completion of wave reflection within hole cracks before explosion and casting time of the insitu rock. Other important of subdrill in Blasting is that, subdrill help to ensure smooth and stable bench floor.
subdrill also ensure the production plan and schedule per blast is achieved.As a Mining Engineer we have plan and Target per blast, our mill and beneficiary plant must operate Continuous non stop, therefore all fleet operation had been planned with several target production per day. If for example 50holes are blasted and we expect 100Tonnes of material, and According to our plan, three haul trucks is needed with one loader to ensure 20 trips per day. Which is expected to keep the mill working for days. Assuming the blast failed at the toe, Producing oversize material, and only 60Tonnes are loadable. This will not only affect operation plan it will also affect operation cost. More diesel will be waste on selective loading, haul truck will be underused, plant will also operate in efficiently.
Subdrill is important, it makes the bench floor smooth and good for Tyre mounted trucks ploughing, in most case after Blasting a need for leveling and surveying to ensure pit is accessible for haul trucks, this becomes additional cost and stress. Subdrill will not just solve this challenge it will improve Blasting fragmentation.
 Is subdrill needed for all type of rock formations?
No, not all formation requires subdrill.
Bedded sedimentary formation Like limestone among others don't require subdrill because of there stratigraphy.strata or layered formation response positively to bottom charge energy because if the weakeness status of the beds. The bed tend to shift under low Explosive Energy because the shock wave will propagate along the cleavage plane (weak plane) of the formation and improve fracturing at the bench toe. Also, the bedding nature of the rock will support creation of smooth bench floor after Blasting.
 In conclusion, bedded formation will support high tensile slabbing with low Explosive Energy. This makes subdrill unimportant.
"How to design subdrill length for a typical Blasting operation" Subdrill is calculate according to rule of thumb as 0.3*Burden distance.
For Langford research work he proposed 0.3*Maximum Burden distance. Subdrill can also be calculated using drill bit diameter using 7.5*D. Subdrill increase charge length by 15.8%. subdrill is important and most be use to optimize Blasting result.

Blast it safely and profitably, all workers and blasters working on the mine site must return home safely to have a happy dinner with their families.. say no to all unsafe Blasting act and conditions...
® Giant Miner

CHECK, VERIFY AND ENSURE IS SAFE: MINING OPERATION PROFIT METER IS NOT MONEY IS SAFETY

IF SAFE AND PRODUCTIVE IS MINABLE
Explosive charge can vary from rock to rock due to the different in discontinuity property, rock Strength, rock impedance, rock type, rock grains packing and other non controllable factors.
Make a good pre-planning before Blasting and also use test Blasting to build a standard blast design for your mine. SAFTEY and Profit must be balance.
Our miners must return home to their children and wife safely. We mine the ore and keep the earth healthy for the next generation.
As you resume to morning, evening and afternoon shift take note of the possible hazards in the mine due to previous operation. Check the mine face in case of overbreak, check the ramp in case of slabbing effect, check blast pile for undetonated Explosive charge, cord, check drilled hole dimension and accuracy, check the operation Condition of your equipment. Check records from last shift person, try and look into any recommendations and complain in the Reports to put them in order. Understand the production target for the day, Design the blast that will produce the target in a good fragment, plan on need items to make the blast and mine run safely and efficiently. 
Reach out to your team, be concerned about their welfarism, get your team into action as a team player, start mining with prayer and end with thanks giving. What we do is simple, liberate the ore from the host rock, load the material into a haul truck, stock pile the run off mine at the processing plant.but more than this, we check for consequences of every operation, carryout job safety analysis JSA, adjust blast controllable factors to sweet and blend the uncontrollable factors. Work with the design slope angle to avoid increase in stripping ratio,and to ensure safety in place of slope face stability. Mining is just a profession you will like to involve in, let the firing Begins 
 As you extract and exploit the earth, check the health of the lithosphere also, treat any form of weaken rock stability Malaria, every possible slope discontinuity daylight fever in the rock face, every typhoid in the continuity of intact rocks must be treated with perfect design. Some need to be eliminated, suspended, isolated, control with Engineering design, administration policy of avoid high risk level on workers through the use of safety PPE. Let understanding be available for all your workers, let all Engineering design be with optimum factor of safety and let all policy, rules and regulations be fully enforced by concern supervisor and Mine managers.  In most mine oversight is the disease consuming their profitability, managers should be involved and carry along in all operation. Blasting most not be done without the *ALL CLEAR* order from the blast coordinator or Blasting Engineer. Let all blasting time be consistent and made known to all workers, let all alarm be sound at least three times before the blast and then after the blast. Working equipments should be trekked away from blast zone do not use them as shield to hold flyrock. Get the machine to a safe place, let all Explosive be use without additional combustive material. Don't do this to increase Explosive Energy it affect the Explosive design OXYGEN BALANCE. 
 Have an emergency response team, and incident Management plan to handle any form of mine emergency, let all policy be in place and visible to all workers. Where Blasting is carried out in unstable temperature or pressure condition proper Explosive and Blasting accessories selection must be done and adjustment must be done to blast design to suit the Working condition. Let all holes be checked properly for in filterated edge water before charging, using ANFO swelled or dissolved in water result in the release of Carbon monoxide fume or other notorious gases with brownish or pale brown color which is toxic and irritants great source of harm to human lungs and health generally. Let mining be a safe Mining and blast be a safe and productive mining. Blast fragment should contain less than 5%undersize and oversize material to ensure smooth run-in of processing plant as planned. Plan ahead of raining season also, design your dewatering system and make it clear to bear your producing capacity. Disappointing buyer is a sign of demolition in market and a sign of reduction in mine revenue. Raining season is know to be a time of low production due to limited access to the mine and low efficiency in productivity, poor pit accessibility, small working space, low haulage operation, unstable mine face due to increase in material bulk density, high rate of misfire. Plan ahead, work ahead and work safely.
Let you mine be safe and let you workers be secured, make environmental health and safety garantee for community, release of dust, ground vibration and high decibel noise during your Blasting and other operations will add to the people's problem, likewise projection of rock debris can break human skull and tear brain appart, it can also break door, crash cars and even amputate body part avoid over charging of hole and control your fly rock. We must make peace with nature to make peace with men, control the rate of ozone layer depletion, reduce rate of green house gases release into the atmosphere. Let make mining work out, if the material is not mine, then it is grown. Industry feed on us let production rate increase to reduce poverty rate through production of materials, employment, source of income to people, infrastructural development, social economy growth among others. Mining Engineer is a profession and not a hand skill, let all company be managed by competent person, supported by as many as needed assistance to make things work.
Be safe and make the mine safe.. Follow my page, read my blog articles @ giantminer.blogspot.com
 ® Giant Miner

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ROCK AND MINING REVIEW

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