Blast hole drilling is a technique used in mining where holes are drilled into rock, packed with explosives, and detonated. The seminar discusses the blast hole drilling process, which involves drilling holes, loading explosives into the holes, detonating the explosives to blast the rock, ventilating smoke and fumes, removing blasted rock, and installing ground support. Different drill hole patterns, explosives, and the typical drilling and blasting cycle are also covered.
In mining operations, blasting has become a routine work. With proper understanding of the rocks and blasting methods, the mining work can be done effectively. This module explains the rock blasting methods adopted in mining industries.
Its a presentation about the design aspect of open cast mine. The author believes it will surely help the mining engineering students at the beginning level.
In mining operations, blasting has become a routine work. With proper understanding of the rocks and blasting methods, the mining work can be done effectively. This module explains the rock blasting methods adopted in mining industries.
Its a presentation about the design aspect of open cast mine. The author believes it will surely help the mining engineering students at the beginning level.
This PPT contains data related to Drilling, its necessity, its types, precautions during drilling, Selection of Drilling method and Equipment & Factors Affecting the optimum drilling pressure.
Boring for exploration; various types of exploratory drills and their applicability Auger, Cable-tool, Odex, Core Drills; Core recovery: single and double tube core barrels, wire line core barrel; Storage of cores; Interpretation of borehole data
This presentation was given to test the students' ability of understanding the principle of mining. Many thanks to Mr. Adolphus M.G.D. Gleekia for introducing such unique topic.
Tunnel Engineering: Introduction to tunneling
Size and shape of tunnel and suitability
Tunneling in hard rock, and soft material
Shield method
Safety measures
Ventilation, lighting and drainage of tunneling
A Review Study on Methods of Tunneling in Hard Rocksijsrd.com
This article presents a review on the different methodologies that are used for tunnels excavations in hard rocks in present era. Growing needs for modern transportation and utility networks have increased the demand for a more extensive and elaborate use of underground space or through high mountains / hills. As a result, more projects have to be completed in various ground conditions and one of which is more challenging is to carry out excavation work in hard rocks. Significant technological advances have rendered these projects possible, but have also given rise to new challenges as many of these projects have to be completed in difficult conditions, with very strict environmental constraints, particularly in urban areas where the potential impact of tunneling on existing structures is a major concern. This paper addresses the main aspects of tunneling and underground works performed in hard rocks. A summary is presented of the more recent advances and widely adopted techniques in these regards.
Explore the innovative world of trenchless pipe repair with our comprehensive guide, "The Benefits and Techniques of Trenchless Pipe Repair." This document delves into the modern methods of repairing underground pipes without the need for extensive excavation, highlighting the numerous advantages and the latest techniques used in the industry.
Learn about the cost savings, reduced environmental impact, and minimal disruption associated with trenchless technology. Discover detailed explanations of popular techniques such as pipe bursting, cured-in-place pipe (CIPP) lining, and directional drilling. Understand how these methods can be applied to various types of infrastructure, from residential plumbing to large-scale municipal systems.
Ideal for homeowners, contractors, engineers, and anyone interested in modern plumbing solutions, this guide provides valuable insights into why trenchless pipe repair is becoming the preferred choice for pipe rehabilitation. Stay informed about the latest advancements and best practices in the field.
Forklift Classes Overview by Intella PartsIntella Parts
Discover the different forklift classes and their specific applications. Learn how to choose the right forklift for your needs to ensure safety, efficiency, and compliance in your operations.
For more technical information, visit our website https://intellaparts.com
COLLEGE BUS MANAGEMENT SYSTEM PROJECT REPORT.pdfKamal Acharya
The College Bus Management system is completely developed by Visual Basic .NET Version. The application is connect with most secured database language MS SQL Server. The application is develop by using best combination of front-end and back-end languages. The application is totally design like flat user interface. This flat user interface is more attractive user interface in 2017. The application is gives more important to the system functionality. The application is to manage the student’s details, driver’s details, bus details, bus route details, bus fees details and more. The application has only one unit for admin. The admin can manage the entire application. The admin can login into the application by using username and password of the admin. The application is develop for big and small colleges. It is more user friendly for non-computer person. Even they can easily learn how to manage the application within hours. The application is more secure by the admin. The system will give an effective output for the VB.Net and SQL Server given as input to the system. The compiled java program given as input to the system, after scanning the program will generate different reports. The application generates the report for users. The admin can view and download the report of the data. The application deliver the excel format reports. Because, excel formatted reports is very easy to understand the income and expense of the college bus. This application is mainly develop for windows operating system users. In 2017, 73% of people enterprises are using windows operating system. So the application will easily install for all the windows operating system users. The application-developed size is very low. The application consumes very low space in disk. Therefore, the user can allocate very minimum local disk space for this application.
CFD Simulation of By-pass Flow in a HRSG module by R&R Consult.pptxR&R Consult
CFD analysis is incredibly effective at solving mysteries and improving the performance of complex systems!
Here's a great example: At a large natural gas-fired power plant, where they use waste heat to generate steam and energy, they were puzzled that their boiler wasn't producing as much steam as expected.
R&R and Tetra Engineering Group Inc. were asked to solve the issue with reduced steam production.
An inspection had shown that a significant amount of hot flue gas was bypassing the boiler tubes, where the heat was supposed to be transferred.
R&R Consult conducted a CFD analysis, which revealed that 6.3% of the flue gas was bypassing the boiler tubes without transferring heat. The analysis also showed that the flue gas was instead being directed along the sides of the boiler and between the modules that were supposed to capture the heat. This was the cause of the reduced performance.
Based on our results, Tetra Engineering installed covering plates to reduce the bypass flow. This improved the boiler's performance and increased electricity production.
It is always satisfying when we can help solve complex challenges like this. Do your systems also need a check-up or optimization? Give us a call!
Work done in cooperation with James Malloy and David Moelling from Tetra Engineering.
More examples of our work https://www.r-r-consult.dk/en/cases-en/
Automobile Management System Project Report.pdfKamal Acharya
The proposed project is developed to manage the automobile in the automobile dealer company. The main module in this project is login, automobile management, customer management, sales, complaints and reports. The first module is the login. The automobile showroom owner should login to the project for usage. The username and password are verified and if it is correct, next form opens. If the username and password are not correct, it shows the error message.
When a customer search for a automobile, if the automobile is available, they will be taken to a page that shows the details of the automobile including automobile name, automobile ID, quantity, price etc. “Automobile Management System” is useful for maintaining automobiles, customers effectively and hence helps for establishing good relation between customer and automobile organization. It contains various customized modules for effectively maintaining automobiles and stock information accurately and safely.
When the automobile is sold to the customer, stock will be reduced automatically. When a new purchase is made, stock will be increased automatically. While selecting automobiles for sale, the proposed software will automatically check for total number of available stock of that particular item, if the total stock of that particular item is less than 5, software will notify the user to purchase the particular item.
Also when the user tries to sale items which are not in stock, the system will prompt the user that the stock is not enough. Customers of this system can search for a automobile; can purchase a automobile easily by selecting fast. On the other hand the stock of automobiles can be maintained perfectly by the automobile shop manager overcoming the drawbacks of existing system.
Water scarcity is the lack of fresh water resources to meet the standard water demand. There are two type of water scarcity. One is physical. The other is economic water scarcity.
Industrial Training at Shahjalal Fertilizer Company Limited (SFCL)MdTanvirMahtab2
This presentation is about the working procedure of Shahjalal Fertilizer Company Limited (SFCL). A Govt. owned Company of Bangladesh Chemical Industries Corporation under Ministry of Industries.
About
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
• Remote control: Parallel or serial interface.
• Compatible with MAFI CCR system.
• Compatible with IDM8000 CCR.
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
• Easy in configuration using DIP switches.
Technical Specifications
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
Key Features
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
• Remote control: Parallel or serial interface
• Compatible with MAFI CCR system
• Copatiable with IDM8000 CCR
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
Application
• Remote control: Parallel or serial interface.
• Compatible with MAFI CCR system.
• Compatible with IDM8000 CCR.
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
• Easy in configuration using DIP switches.
Vaccine management system project report documentation..pdfKamal Acharya
The Division of Vaccine and Immunization is facing increasing difficulty monitoring vaccines and other commodities distribution once they have been distributed from the national stores. With the introduction of new vaccines, more challenges have been anticipated with this additions posing serious threat to the already over strained vaccine supply chain system in Kenya.
Final project report on grocery store management system..pdfKamal Acharya
In today’s fast-changing business environment, it’s extremely important to be able to respond to client needs in the most effective and timely manner. If your customers wish to see your business online and have instant access to your products or services.
Online Grocery Store is an e-commerce website, which retails various grocery products. This project allows viewing various products available enables registered users to purchase desired products instantly using Paytm, UPI payment processor (Instant Pay) and also can place order by using Cash on Delivery (Pay Later) option. This project provides an easy access to Administrators and Managers to view orders placed using Pay Later and Instant Pay options.
In order to develop an e-commerce website, a number of Technologies must be studied and understood. These include multi-tiered architecture, server and client-side scripting techniques, implementation technologies, programming language (such as PHP, HTML, CSS, JavaScript) and MySQL relational databases. This is a project with the objective to develop a basic website where a consumer is provided with a shopping cart website and also to know about the technologies used to develop such a website.
This document will discuss each of the underlying technologies to create and implement an e- commerce website.
2. WHAT IS BLAST HOLE DRILL ?
It is a technique used in mining whereby a hole
is drilled into the surface of the rock, packed
with explosive material and detonated.
3. DESCRIPTION
Blast hole drilling is most commonly used in the
exploration of minerals.
Blast hole drilling is done by the use of explosives. The
rock is blasted and crushing and removing of the rock
and other materials.
Charging cavities are created and explosives are placed
into these cavities. Thus a blast hole is not the after effect
of an explosion, instead it is the hole created in which the
explosives, as well as the various components that go
along with the detonation of the explosives, are placed.
4. CONTINUE…
The drilling part of the blast hole drilling process is that
most expensive part of the project.
it is the most important part of the project. If the initial
drilling is done wrong then the future of the project
could end up being a problem.
6. ADVANTAGES :
Potential environmental impact in terms of
noise, dust and sensitive receive are significantly
reduced.
Blast would significantly reduced vibration as
compared with bored tunneling.
7. DISADVANTAGES :
Potential hazard associated with establishment of a
temporary magazine site for overnight of explosive shall
be addressed through avoiding populated areas in the site
selection process.
9. THE TYPICAL CYCLE OF EXCAVATION BY BLASTING IS
PERFORMED IN THE FOLLOWING STEPS:
Drilling blast holes and loading them with
explosives.
Detonating the blast, followed by ventilation to
remove blast fumes.
Removal of the blasted rock (mucking).
Scaling crown and walls to remove loosened
pieces of rock.
Installing initial ground support.
Advancing rail, ventilation, and utilities.
10. DRILLING AND BLASTING METHOD
1- Drilling :
Before the blasting takes place, the drilling
rig bores the drill holes – determined in
advance in a blasting plan.
A jumbo is used to drill holes in the rock face. This one
has three drilling arms and an operator tower. It is run by
electric cable; a hose brings water to the drills. The drills are
pneumatic. That means that the drill bits both hammer and
rotate. Broken bits of rock are flushed out by water. These drill
holes are 2.4-3.6 metres long.
11. The first sets are straight holes (parallel cut) located around the
edge of the face and in the middle. A second set (V-cut) is
angled toward the center. These allow the rock to be blown
away from the face into the drift (tunnel).
13. 2- LOADING AND BLASTING :
The drill holes are now filled with explosives, detonators are
attached to the explosive devices and the individual explosive
devices are connected to one another.
The holes are blasted in a proper sequence, from the center
outward, one after the other.
Although more than 100 explosions may be set off, one after
the other, the blast sequence is completed in several seconds.
14.
15. 3- VENTILATING :
The blast causes lots of rock to be flung through the tunnel,
dispersing clouds of dust that then mix with the combustion
gases of the explosion. So that the miners can resume work in
the tunnel, the bad air must be removed from the tunnel.
This is done by using so-called air-ducting systems, long steel
or plastic pipes, which are attached to the roof of the tunnel and
blow fresh air onto the working face.
This gives rise to localized excess pressure and the bad air is
pushed towards the tunnel exit.
16. 4.DISLODGING :
Dislodging refers to the stripping away and removal of loose
pieces of rock, which were not completely released from the
rock during the blasting procedure. This working step is
completed by a robust tunnel excavator.
17. TYPES OF EXPLOSIVE ADDED
BASED ON DIFFERENT CONDITION
DYNAMITE
ANFO (AMMONIUM NITRATE & FUEL OIL
MIX)
GUN POWDER
18. 1.The blast holes are made and
cleaned by using the tools.
2.The charge of explosive placed
at the bottom.
3.Remaining portion is filled with
clay and tamped.
4.Fuse is inserted, kept projecting
15-20 cm above the rock
surface.
5. Thereafter free end of fuse is
fired by detonator.