Considerations on the sublevel stoping method; Conditions for application of the deposit; Characteristic of Sublevel Stoping Method; Application; Development; Sublevel overhand; Sublevel underhand; Slot; Configuration of stopes; Drawpoints
Open pit mining is the process of mining a near surface deposit by means of a surface pit excavated using one or more horizontal benches.
The term open pit mining is usually used for metallic or non-metallic deposits and sparingly used for bedded deposits like coal.
Reporting and Representation of Dilution. Examples and Case Histories
Example 1: Relationship Between Over-break and Planned Dilution
Example 2: Dilution Often Included in the Resource Model
Example 3: Manipulation of Density
Example 4: Internal Dilution within the ore Envelope
Example 5: Misleading Reports of Dilution
Example 6: Misleading Reports of Dilution and Tonnes
Sketches for Mineral Loss and Dilution
Reference Texts
Aggregate Factors for Mineral Losses
Quality of Evaluation
More Ore Will be Discovered
Mine Reserve Cut-Off Grade Too Low
High Grading and Fiscal Imprudence
Modeling, Design, Decision and Execution errors
Efforts to Combat Dilution
Resource Upgrade
Ore Contact Variability
Example 1: Ore Contact Variability and Resource Upgrade
Example 2: Ore Contact Variability Narrow Vein Longhole
Example 3: Ore Contact Variability and Planning Sublevel Intervals
Factors Affecting Dilution and Mineral Losses
rock excavation, different open cast or open pit excavation machinery, application, limitations, highwall miner, bucket wheel excavatorr, bucket chain excavator, shovels
Considerations on the sublevel stoping method; Conditions for application of the deposit; Characteristic of Sublevel Stoping Method; Application; Development; Sublevel overhand; Sublevel underhand; Slot; Configuration of stopes; Drawpoints
Open pit mining is the process of mining a near surface deposit by means of a surface pit excavated using one or more horizontal benches.
The term open pit mining is usually used for metallic or non-metallic deposits and sparingly used for bedded deposits like coal.
Reporting and Representation of Dilution. Examples and Case Histories
Example 1: Relationship Between Over-break and Planned Dilution
Example 2: Dilution Often Included in the Resource Model
Example 3: Manipulation of Density
Example 4: Internal Dilution within the ore Envelope
Example 5: Misleading Reports of Dilution
Example 6: Misleading Reports of Dilution and Tonnes
Sketches for Mineral Loss and Dilution
Reference Texts
Aggregate Factors for Mineral Losses
Quality of Evaluation
More Ore Will be Discovered
Mine Reserve Cut-Off Grade Too Low
High Grading and Fiscal Imprudence
Modeling, Design, Decision and Execution errors
Efforts to Combat Dilution
Resource Upgrade
Ore Contact Variability
Example 1: Ore Contact Variability and Resource Upgrade
Example 2: Ore Contact Variability Narrow Vein Longhole
Example 3: Ore Contact Variability and Planning Sublevel Intervals
Factors Affecting Dilution and Mineral Losses
rock excavation, different open cast or open pit excavation machinery, application, limitations, highwall miner, bucket wheel excavatorr, bucket chain excavator, shovels
It is a powerpoint presentation that discusses about the lesson or topic: Literary Devices. It also talks about the definition and different types and examples about the types of Literary Devices.
This Mine Hazard topic is disruption of basic Mining Activity hazard occur during mining operation of Drilling,Blasting,Excavation,Transportation ,Dumping
Can be headhunted for senior level managerial assignments as NDT Operations / Project Manager NDT & Inspection with an organisation of repute
Preferred Industry: Oil & Gas / NDT, Inspection & Construction Company
An astute professional with over 20 years of experience in NDT Testing & Inspection as well as Project Execution across NDT companies.
Currently associated with Engineering And Research International LLC, Abu Dhabi, UAE as Operations Manager – NDT & Metlab.
Holds important Industry certifications for Inspections like ASNT NDT Level III, CSWIP 3.1.
Holds the merit of imparting Personnel Training in various NDT methods & General/ Radiation Safety.
An effective communicator with excellent relationship management skills and strong analytical, leadership, decision-making, problem solving & organisational abilities.
Course Description
The business of fuelling the world through hydrocarbon production must be carried out with optimum profitability. Participants will learn how sand production and inadvertent formation damage can erode these profits. Methods and procedures will be presented to guide the participants in decision making with regard to completing a well with optimum control of formation sand while incurring minimal damage to the well or production zone. Extensive theory will be presented illustrating why certain practices should either be employed or strictly avoided. The very latest in the use of forecasting methods, tools, techniques, and personal experiences will be presented.
By attending the 5 day training course, you will be able to:
Assess how rock will fail and how this analysis is used to determine the appropriate sand control method.
Interpret particle size distribution data.
Determine the appropriate sand control method when provided with appropriate reservoir and production data.
Select completion equipment and associated tooling for sand control (screens, gravels, work strings, barrier valves etc.)
Produce an outline installation procedure for the main types of sand control.
Troubleshoot sand control problems.
Optimizing completions in deviated and extended reach wells is a key to safe drilling and optimum
production, particularly in complex terrain and formations. This work summarizes the systematic methodology
and engineering process employed to identify and refine the highly effective completions solution used in ERW
completion system and install highly productive and robust hard wares in horizontal and Extended Reach Wells
for Oil and Gas. A case study of an offshore project was presented and discussed. The unique completion design,
pre-project evaluation and the integrated effort undertaken to firstly, minimize completion and formation damage.
Secondly, maximize gravel placement and sand control method .Thirdly, to maximize filter cake removal
efficiencies. The importance of completions technologies was identified and a robust tool was developed .More
importantly, the ways of deploying these tools to achieve optimal performance in ERW’s completions was done.
The application of the whole system will allow existing constraints to be challenged and overcome successfully;
these achievements was possible, by applying sound practical engineering principle and continuous optimization,
with respect to the rig and environmental limitation space and rig capacity.
Keywords: Well Completions , Deviated and Extended Rearch Wells , Optimization
A critical study on availability and capacity utilization of side discharge l...eSAT Journals
Abstract Improvement in production and productivity has become an important aspect for today’s coal industry especially in case of underground coal mines. The record of production and productivity of Indian underground coal mines over the years is dismal, to say the least. Mechanization in loading system has made possible major breakthroughs in underground coal mining technology. Side Discharge Loaders (SDL) is now used as a loading machine for intermediate mechanization in underground coal mining. To meet the production and productivity issues the SDL machine should be maintained effectively and efficiently to have maximum availability. Higher availability of machine shall enable optimum utilization thus increasing production and productivity of these capital intensive items.. This paper intends to identify and highlight the various factors and problems affecting performance of SDL machine. Further an attempt is made to calculate the percentage availability and utilization of SDL deployed in underground coal mines and analyzes the contributing factors to improve the overall efficiency. In addition, the problems of SDL application, breakdown and its management have also been identified and resolved in these studies to propose suitable measures for improving them. Keywords: Side Discharge Loaders, performance, assessment, scheduled hours, maintenance hours, available hours, percentage availability, percentage utilization, production efficiency, operating efficiency, management efficiency, overall efficiency.
Elevating Tactical DDD Patterns Through Object CalisthenicsDorra BARTAGUIZ
After immersing yourself in the blue book and its red counterpart, attending DDD-focused conferences, and applying tactical patterns, you're left with a crucial question: How do I ensure my design is effective? Tactical patterns within Domain-Driven Design (DDD) serve as guiding principles for creating clear and manageable domain models. However, achieving success with these patterns requires additional guidance. Interestingly, we've observed that a set of constraints initially designed for training purposes remarkably aligns with effective pattern implementation, offering a more ‘mechanical’ approach. Let's explore together how Object Calisthenics can elevate the design of your tactical DDD patterns, offering concrete help for those venturing into DDD for the first time!
Generating a custom Ruby SDK for your web service or Rails API using Smithyg2nightmarescribd
Have you ever wanted a Ruby client API to communicate with your web service? Smithy is a protocol-agnostic language for defining services and SDKs. Smithy Ruby is an implementation of Smithy that generates a Ruby SDK using a Smithy model. In this talk, we will explore Smithy and Smithy Ruby to learn how to generate custom feature-rich SDKs that can communicate with any web service, such as a Rails JSON API.
Builder.ai Founder Sachin Dev Duggal's Strategic Approach to Create an Innova...Ramesh Iyer
In today's fast-changing business world, Companies that adapt and embrace new ideas often need help to keep up with the competition. However, fostering a culture of innovation takes much work. It takes vision, leadership and willingness to take risks in the right proportion. Sachin Dev Duggal, co-founder of Builder.ai, has perfected the art of this balance, creating a company culture where creativity and growth are nurtured at each stage.
Connector Corner: Automate dynamic content and events by pushing a buttonDianaGray10
Here is something new! In our next Connector Corner webinar, we will demonstrate how you can use a single workflow to:
Create a campaign using Mailchimp with merge tags/fields
Send an interactive Slack channel message (using buttons)
Have the message received by managers and peers along with a test email for review
But there’s more:
In a second workflow supporting the same use case, you’ll see:
Your campaign sent to target colleagues for approval
If the “Approve” button is clicked, a Jira/Zendesk ticket is created for the marketing design team
But—if the “Reject” button is pushed, colleagues will be alerted via Slack message
Join us to learn more about this new, human-in-the-loop capability, brought to you by Integration Service connectors.
And...
Speakers:
Akshay Agnihotri, Product Manager
Charlie Greenberg, Host
Smart TV Buyer Insights Survey 2024 by 91mobiles.pdf91mobiles
91mobiles recently conducted a Smart TV Buyer Insights Survey in which we asked over 3,000 respondents about the TV they own, aspects they look at on a new TV, and their TV buying preferences.
UiPath Test Automation using UiPath Test Suite series, part 3DianaGray10
Welcome to UiPath Test Automation using UiPath Test Suite series part 3. In this session, we will cover desktop automation along with UI automation.
Topics covered:
UI automation Introduction,
UI automation Sample
Desktop automation flow
Pradeep Chinnala, Senior Consultant Automation Developer @WonderBotz and UiPath MVP
Deepak Rai, Automation Practice Lead, Boundaryless Group and UiPath MVP
Neuro-symbolic is not enough, we need neuro-*semantic*Frank van Harmelen
Neuro-symbolic (NeSy) AI is on the rise. However, simply machine learning on just any symbolic structure is not sufficient to really harvest the gains of NeSy. These will only be gained when the symbolic structures have an actual semantics. I give an operational definition of semantics as “predictable inference”.
All of this illustrated with link prediction over knowledge graphs, but the argument is general.
JMeter webinar - integration with InfluxDB and GrafanaRTTS
Watch this recorded webinar about real-time monitoring of application performance. See how to integrate Apache JMeter, the open-source leader in performance testing, with InfluxDB, the open-source time-series database, and Grafana, the open-source analytics and visualization application.
In this webinar, we will review the benefits of leveraging InfluxDB and Grafana when executing load tests and demonstrate how these tools are used to visualize performance metrics.
Length: 30 minutes
Session Overview
-------------------------------------------
During this webinar, we will cover the following topics while demonstrating the integrations of JMeter, InfluxDB and Grafana:
- What out-of-the-box solutions are available for real-time monitoring JMeter tests?
- What are the benefits of integrating InfluxDB and Grafana into the load testing stack?
- Which features are provided by Grafana?
- Demonstration of InfluxDB and Grafana using a practice web application
To view the webinar recording, go to:
https://www.rttsweb.com/jmeter-integration-webinar
GDG Cloud Southlake #33: Boule & Rebala: Effective AppSec in SDLC using Deplo...James Anderson
Effective Application Security in Software Delivery lifecycle using Deployment Firewall and DBOM
The modern software delivery process (or the CI/CD process) includes many tools, distributed teams, open-source code, and cloud platforms. Constant focus on speed to release software to market, along with the traditional slow and manual security checks has caused gaps in continuous security as an important piece in the software supply chain. Today organizations feel more susceptible to external and internal cyber threats due to the vast attack surface in their applications supply chain and the lack of end-to-end governance and risk management.
The software team must secure its software delivery process to avoid vulnerability and security breaches. This needs to be achieved with existing tool chains and without extensive rework of the delivery processes. This talk will present strategies and techniques for providing visibility into the true risk of the existing vulnerabilities, preventing the introduction of security issues in the software, resolving vulnerabilities in production environments quickly, and capturing the deployment bill of materials (DBOM).
Speakers:
Bob Boule
Robert Boule is a technology enthusiast with PASSION for technology and making things work along with a knack for helping others understand how things work. He comes with around 20 years of solution engineering experience in application security, software continuous delivery, and SaaS platforms. He is known for his dynamic presentations in CI/CD and application security integrated in software delivery lifecycle.
Gopinath Rebala
Gopinath Rebala is the CTO of OpsMx, where he has overall responsibility for the machine learning and data processing architectures for Secure Software Delivery. Gopi also has a strong connection with our customers, leading design and architecture for strategic implementations. Gopi is a frequent speaker and well-known leader in continuous delivery and integrating security into software delivery.
DevOps and Testing slides at DASA ConnectKari Kakkonen
My and Rik Marselis slides at 30.5.2024 DASA Connect conference. We discuss about what is testing, then what is agile testing and finally what is Testing in DevOps. Finally we had lovely workshop with the participants trying to find out different ways to think about quality and testing in different parts of the DevOps infinity loop.
Transcript: Selling digital books in 2024: Insights from industry leaders - T...BookNet Canada
The publishing industry has been selling digital audiobooks and ebooks for over a decade and has found its groove. What’s changed? What has stayed the same? Where do we go from here? Join a group of leading sales peers from across the industry for a conversation about the lessons learned since the popularization of digital books, best practices, digital book supply chain management, and more.
Link to video recording: https://bnctechforum.ca/sessions/selling-digital-books-in-2024-insights-from-industry-leaders/
Presented by BookNet Canada on May 28, 2024, with support from the Department of Canadian Heritage.
Designing Great Products: The Power of Design and Leadership by Chief Designe...
Mine Tech Seminar '10 - Gist of Papers
1. Mine Tech ‘10(7th & 8th May 2010)@ Bhubaneswar by The Indian Mining & Engineering Journal Venkat Tata Steel
2. Key note Address G.S.Kuntia, Former ED-SAIL explained about the mineral wealth of Orissa. 1/5th of national coal reserves are present in Orissa. Prof.Jayanthu– thrust on outsourcing of non-statutory activities of mining as discussed in national safety conference. S.N.Padhi, Ex-DGMS – importance of self regulation required for industries.
3. Key note Address RanaSom, CMD-NMDC – Out of 25.2 BT of iron reserves in India only 6.6 BT is proved till now. Requirement of policy decision for iron exploration. NMDC approached state governments for doing exploration at free of cost. Technology is a mixture of policy and economics. Sustenance is possible through protection of environment , CSR and generation of employment.
4. Key note Address DC.Garg, CMD-WCL explained the production figures of WCL and their future plans to introduce more number of continuous miners (present-5, future-38) and longwalls (working-4, proposed-5) for reaching higher production levels. V.K.Singh, CMD-NCL Highest consumption of explosives in CIL Maximum depth of Jayanthu OC is 238m 1.2LT explosive used in 2010-11 to produce 72MT of Coal & 248M.Cu.m of OB. Blasts are simulated before hand to find out the fragmentation and powder factor.
6. Technical Sessions SAP application in Mining – Seal Info Tech & SCCL Challenges – Operational management, supply chain, asset base, manage growth, project execution, HR, SHE, Contract management, Vendor Management. Needs – visibility & control, improvement efficiency & cost containment, sustainability & risk. 290 major customers of mining are using SAP 22 Mining scenarios are developed in SAP till now. Shared the experiences of implementation of SAP in SCCL and its usefulness in reducing the manpower, delays, avoiding duplication and corruption.
7. Technical Sessions Mining & Exploration techniques – case study at BagjataUranium Mine, Jharkhand– mainly discussed about the available mining methods and its impact on safety & environmental issues. Cut & fill method is selected for the present mine. MOIL – Manganese Ore (India) Limited Operates 7 underground & 3 opencast mines in Maharashtra. Mn -12th most abundant & 4th most used metal. Explained about the difficulties in supporting the roof in underground mines and found cable bolting as the best method of support.
8. Technical Sessions Application of life cycle cost (LCC) technique in equipment selection of OC mines – The cost of a system or equipment to the end user over it planned lifetime is its life cycle cost of ownership. LCC = Acquisition cost + Sustaining cost LCC concept in British standards called as “Terotechnology” – A combination of management, financial, engineering, building and other practices applied to physical assets in pursuit of economic life cycle costs. LCC software's are developed on Monte-Carlo Algorithm.
9. Technical Sessions Vermeer Continuous Miner – T1255 SEM Avoids blasting – thereby reducing the concerns about maintaining safety zone. Extraction of thin seams is possible and avoids primary crushing plant. It can cut 3.7m wide and 69mm deep cut in a single pass of a material with compressive strength upto 120MPa. For 680 T/Hr production with 2Km haul distance, the operating cost/hr for production is Rs. 16,400/- at 85% availability of the machine. Under trial stage in India in NCL.
10. Technical Sessions Application of Mining Software in Mine Planning & Design – They explained the advantages and different software's available in the market. But industry needs a comparative statement and which is best suited for which job. Permitted-HP, a new P5 explosive product to accelerate the production in underground mines – Explosive usage in the hole should be as per the DGMS standards, which limits the increase in the length of the hole. If we increase the length of hole from 1.8 to 2.7m and put spacers in between explosive cartridges keeping inview of DGMS standards then detonation wave does not transfer between cartridges. To solve this Gulf Oil prepared a new P5 explosive approved by DGMS which will pas detonating wave upto 15cm gap between two cartridges, thus increasing the depth of holes, pull and production.
11. Technical Sessions Strata Control problems in Coal mines About 2500 MT of Coal locked up in standing pillars in underground due to strata control problems Importance of maintaining strata control cells in each areas of mines operation as discussed in the national safety conference. Longwall experiences with varied face lengths in SCCL – mainly discussed on the observations made on the strata and acting of abutment pressures with the varied face lengths while working of a same longwall face.
12. Technical Sessions Wide Stall Method Application of this method with the use SDL machines in GDK.8A Mine of SCCL turned the mine into safe and profitable after a major accident of roof fall involving the death of 10 persons. Application of the same method in Sarni Mine, Pathakhera area of WCL to protect the surface features like HT power lines, seasonal nallahs, railway lines, roads, buildings, etc.
14. Technical Sessions VOD vs Diameter of blast hole for Bulk emulsion explosive VOD of an explosive not only controls the rate of release of energy but also influences the energy partitioning with respect to shock and heave energy. critical diameter is the dia below which explosive do not propagate a detonation at all and optimum diameter is the dia above which an increase in dia no longer has an appreciable effect on VOD. From the experiments and field trials it is found that for the unconfined space VOD has an effect between 50 to 125mm dia of the cartridge of the explosive & for rock confined space the dia is between 115 to 152m.
15. Technical Sessions Blasting Performance Index (BPI) – A tool for blast evaluation: it is a quantitative criteria for assessment of blast performance based on the post blast conditions on day to day basis to modify the pre blast conditions. New concept of Fly rock zone – This paper mainly explained the analysis made into an accident occurred due to fly rock beyond the statutory danger zone of 500m because of elevation difference between blasting point and the hitting point using the laws of motion of a projectile under uniform acceleration.
19. Technical Sessions Bright prospects of non-coaking coal preparation in India – This mainly discussed about the need for washability of coal used for power plants thereby avoiding the unnecessary cost in transportation of ash to the tune of 15 to 16%. Significance of petrographic study in selection of feed coals to coking coal washeries – Mainly discussed on the importance of conducting petrographic analysis in combination with washability characteristics and liberation studies so as to produce clean coking coal with less ash content and more vitrinite content, improving caking/coking properties suitable for blast furnace.
20. Technical Sessions Application of Robotics in Mining – A Drag line with 120T capacity, 100m boom length converted into robot is working at Queens land pit featured on NASA’s “cool robot of the week” website. Applications like surveying, mapping, accessing remote places, water logged areas, post blast environmental assessments, etc in underground mines can be made with the help of robots. In association with CMPDI a robot has been prepared for mine mapping in underground. Trials are under progress. Cold setting building brick from Mining & Industry waste – explained the process of preparation of bricks by polymerization reaction using 95% fly ash, 50% beneficiated iron ore tailings and red mud in the raw mix which attains 80-150kg/sq.cm crushing strength at a cost of Rs.2.20-2.60/-
21. Technical Sessions Green Mining industry initiative – explained about the importance of generating energy from wind & solar power to use for mining activity. MSPL in India is generating about 127.8MW of electricity from wind power. Discussed on the other environmental management & control issues related to uranium mining at Domiasiat, Meghalaya & Lime stone mining at Katni, MP involving transport of limestone to a distance of 11.2Km by conveyor.