Blasting Best Practices | T.M.I.
1. Evaluation of Blast Zone Whether in mining or construction, proper personnel first review the location and calculate the extent of the …
Blasthole Drilling Operations | The Driller
Good drilling and blasting practices start with the accurate layout and drilling of blastholes in planned – and sometimes unplanned – locations. ... Large mining operations, which may shoot several times a day with high-capacity drilling rigs, may use global positioning satellite (GPS) technology and on-board computers to precisely …
Initiating Safe and Successful Blast Practices | Agg-Net
Blasthole management post-drilling, including collar consolidation (collars that are stable and do not collapse), depth measurement, water content and backfill. No blast will be successful if …
A Dynamic Image Analysis Method for Fragmentation …
also influences down the line mining costs, that account for 80–85% of the mining cost.2 The cost equation therefore requires a focus on achieving the optimum fragment size in blasting which in turn will result in optimum performance of the MMFS. The required specifications or optimum fragment size
Optimization of Pre-Splitting Blasting Hole Network Parameters …
The blasting is located in the western 10 line mining area to the north of the tailings pond edge. There is no protective structure around 800 m, and the overall blasting environment is good, as shown in Figure 4.
Highwall Safety | Highwall Regulations | Mining Safety Topics
Highwall stability is essential for open-cut mining.In these particular projects, otherwise known as open-pit mining, employs a technique in which rock and minerals are extracted from a borrow pit, or sandbox.For long-term highwall performance, the substance properties that makeup mining sites—or more specifically, the rocks and minerals found within the …
Maptek
Drill and blast designs are crucial for downstream mining success. Knowing how to layout and load blast holes, run blast reports, edit holes, and adjust explosive tie-ins will help you create effective designs and increase blast accuracy and blast safety. Register for Open Pit Drill and Blast to learn: Best practices for drill pattern design.
Precision Rock Excavation: Beyond Controlled Blasting and …
the blast parameters in daily practice. Keywords: presplitting; smooth blasting; line drilling; mechanical cutting; controlled blasting 1. Introduction …
An Overview of Blasting Operations and Possible Techniques
Blasting is accompanied by a number of side effects that have a negative impact on the environment, such as ground vibration, flyrock, AOp, and backbreaks [33, 42].These effects are more severe if they are carried out in close proximity to residential buildings, factories, offices or if they are improperly designed [].Proper designing of a …
(PDF) Rock Fragmentation by Blasting – a review
Abstract and Figures. Rock Fragmentation by Blasting – a review The rock fragmentation process in mining currently being practiced in India needs re-examination to improve the productivity of ...
CCOHS: Underground (Hard Rock) Mining
Underground miners may have many roles, including: Production - responsible for blasting and moving the ore. These roles may include long hole blasters, narrow vein miners, load haul dump (LHD) (i.e., scoop operators), rock truck drivers, and rock breaker operators. Development - advance the drifts (tunnels) based on engineering …
Optimize Your Blasting, Drilling, and Loading Operations
5 Drill and blast optimization. Drill and blast optimization is the process of integrating and coordinating the drilling and blasting activities to achieve the best results and minimize the costs ...
Blasting in Mining
Blasting practices in mines have undergone many changes in the recent past and continue to be honed and reconfigured to meet the demands of today's mining needs. This volume compiles papers of the workshop Blasting in Mines – New Trends, hosted by the Fragblast 10 Symposium . The 17 papers provide a mix which highlight the evolving trends in …
(PDF) Selecting the optimal drilling and blasting …
Drilling and blasting are considered to be the first unit operations in mining. Proper rock fragmentation is the key first element of the ore winning process, as it affects the economics of ...
Overbreak Control in Development Face Blasting of
• Line-drill in the periphery holes played a vital role in the reduction of overbreak due to face blasting in an underground metal mine [71]. • PPV values dropped by 18 % due to 3 rows of line ...
Blasting: The story of breaking rock
In the mid-1890s, the first full-scale theory of blast design was developed and called shear theory. This new theory worked from rock breakage principles to design blasts and became the prominent blast design of the early 1900s. Shear theory, while now understood to be wrong in many cases, was one of the early theories about how a bench …
Controlled blasting for enhanced safety J in the
Good blasting practices based on the careful application of explosive ... surrounding line of 5 holes spaced at 0.5 m, but using fully ... amount of development lost by poor mining practices. By
BEST PRACTICES IN DRILL AND BLAST
1 DRILL & BLAST Fragmentation 2-5: Post blast activities FINE MATERIAL Excessive fragmentation, often a result of higher than optimum powder factor, leads to generation of signifi cant amounts of fi ne material.
Blasting Technology for Underground Hard Rock Mining
This book presents the principles and practices of rock blasting for underground hard rock mining. It covers a theoretical background of the rock blasting technology and comprehensive case studies on different stages of rock blasting for underground metalliferous mining. It includes the discussions on burn-cut face blasting …
Enabling better blasting
Ailbhe Goodbody examines how the e ciency of blasting at mining operations can be improved or optimised. According to 's Adrian Imre, blasting optimisation is a …
Eugene Preis on LinkedIn: #blasting #geology #mining | 41 …
Consistently producing good results requires adjusting the controllable pillars to match the unique geology of each blasting site. Focusing on understanding the uncontrollable can lead to better ...
The basics about blasting.
The basics about blasting. 4th February 2019. By: Creamer Media Reporter. Font size: - +. All mining operations requires blasting at one stage or another. Blast hole drilling is used in mining ...
Fracture Evolution between Blasting Roof Cutting Holes in a Mining
The problem of strong ground pressure caused by thick and hard roofs in coal mine stopes has become more prominent. Blasting roof cutting and pressure relief are effective technical ways to solve this engineering problem. The key to achieving roof cutting and pressure relief is the evolution and penetration of cracks between blasting roof …
Underground Ring Blasting | SpringerLink
The ring blasting pattern is practised for rock excavation in longhole stoping. The detailed discussion on the ring blasting practices has been made in this chapter. The summary of the discussions is as follows: I. The inclined blastholes are drilled in ring blasting pattern to cover the complete extent of the ore body.
Over break control in underground mines
Blasting is an integral part of hard rock mining and remains the most cost effective method of hard rock fragmentation. However, the costs associated with blast damage in terms of safety and productivity of mines are becoming a serious concern. In order to understand the mysterious nature of blast damage prediction and control, field …
GUIDELINES FOR INDUSTRIAL BLASTING
The blasting methods used are as follows: a) Electric blasting. 4.2 Surface Mining b) Blasting with safety fuse and plane detonators. c) Blasting by detonating cord. d) Nonel blasting. Surface Mining is the one, which attracts maximum attention due to its adverse environmental impact. Widely seen problems that are
Drill & Blast Best Practices Part One: Bench Preparation
The operations of drilling and blasting are the beginning of mining operations. The safety of a blast, the quality of the material fragmentation, the roads' conditions, and the resulting slope ...
A new methodology to predict backbreak in blasting operation
A good blasting programme is a prerequisite for improving the utilization rate and predicting the utilization rate before blasting operations can verify the feasibility of the blasting programme. ... Artificial intelligence-based optimizing blasting practices in mining. 2022, Implications of Industry 5.0 on Environmental Sustainability. Six ...
Blasting Impacts and Mitigation: A Guide for Mining Engineers
1 Identify potential impacts 2 Monitor and measure impacts 3 Implement mitigation measures 4 Review and improve 5 Here's what else to consider Blasting is a common …
How to Prevent & Control Flyrock | Blast Control …
Staying behind a blast shield or blast mats for flyrock protection during blasting. Making sure everyone has evacuated the blast area before proceeding. Always following the supervisor's instructions. Scrupulously …