Blasting is a pivotal technique in quarrying, entailing controlled explosions to fracture rock formations for extraction. It is highly efficient in breaking down rocks into large quantities of material swiftly. However, it is not without its drawbacks. Blasting generates significant noise pollution, which can impact nearby communities and ...
The method of drilling and blasting with explosives is widely used in rock fragmentation applications in underground construction projects, such as tunnels and caverns.
Hence, each method is suitable for some specific purposes. This study evaluates and compares the particle size distribution of FYS granite aggregate quarry using WipFrag digital image processing software and the Kuz-Ram empirical model. Three different blasts of the quarry performed with the same design were analysed using the …
A better approach – than attempting to blame factors that are beyond the shotfirer's control – is to try to solve these problems by following a systematic approach to identify what is causing the toe. This …
The exposure to respirable crystalline silica found in granite dust presents significant health hazards to quarry workers and nearby communities, including silicosis and various respiratory ailments. This study evaluates the efficacy of various pollution control measures implemented in granite quarries. It aimed to provide a comprehensive …
This paper introduces different methods and their progress to safely break rock. Ideally, safe rock breaking would have little vibration, no fly stone, and no toxic gases, which can be widely...
When blasting is not a viable option in a quarry a large-sized excavator equipped with a heavy, powerful breaker can be the answer. Patrick Smith reports Law regulations or the proximity of houses or other buildings may mean drill and blast is not possible in some quarries. Breaker manufacturer Promove says breakers offer the …
Evaluation of fragmentation efficiency is an integral aspect of blasting operation. This study therefore assesses the efficiency of fragmentation size at Eminent granite quarry, Ibadan, Nigeria using Split Desktop software and Kuz-Ram empirical model. Five muckpiles of blasted rocks with the same blast design were analysed.
14 April, 2020. First published in the April 2020 issue of Quarry Management. Julian Cleeton, director of Stemtek, examines the conventional and alternative methods for achieving a stable face. Pre-splitting can be defined as 'a technique using lightly charged, closely spaced holes to induce a fracture plane along a required design profile ...
For any quarry operation bordered by residential or commercial property, restricted by noise, dust or vibration legislation, or facing closure due to environmental pressures, primary breaking using hydraulic hammers could prove to be the only viable means of getting rock from ground to customer.
Rockville White granite (Quarry #2) Cold Spring, MN Monthly Block Production: 20,000 cubic meters. Equipment Used: slot drills with a custom drilling head. Cold Spring Granite Co.'s Rockville #2 quarry typically produces about 20,000 cubic feet of material per month, which is used for structural building, mausoleums and markers.
The method of soundless chemical demolition agents (SCDA) is evaluated in more detail and its merits over others are highlighted, making it a potentially viable alternative to blasting with...
The method of drilling and blasting with explosives is widely used in rock fragmentation applications in underground construction projects, such as tunnels and caverns. However, the use of explosives is associated with rigorous safety and environmental constraints, since blasting creates toxic fumes, ground vibrations, and …
For any quarry operation bordered by residential or commercial property, restricted by noise, dust or vibration legislation, or facing closure due to environmental …
This review discusses some nonexplosive rock breakage methods, particularly the hydraulic splitter and expansive chemical agents, that can be employed instead of the conventional blasting method...
The method of soundless chemical demolition agents (SCDA) is evaluated in more detail and its merits over others are highlighted, making it a potentially viable alternative to blasting with...
This review showed that hard rock breaking can be executed effectively and safely using alternative methods, which have a wide range of advantages, including safe operation, ease of use, and environmental friendliness, over conventional explosive methods.
In order to check the applicability and accuracy of the investigated methods, PPV values of 95 datasets were predicted using the mentioned methods, and the results Ground vibration prediction in quarry blasting Fig. 13 Predicted PPVs by the proposed ANN model versus measured PPVs Fig. 14 Predicted PPVs by the proposed ICA-ANN model versus ...
Comparison between mechanical and drill and blast extraction techniques. • Quarry optimization based on the environmental constraints. • Emission analysis for the …
Comparison between mechanical and drill and blast extraction techniques. • Quarry optimization based on the environmental constraints. • Emission analysis for the production of aggregates and natural stones.
Blasting is an important unit operation in mining and civil engineering projects that is aimed at effective rock fragmentation. However, it is always associated with some harmful and unwanted effects on the surrounding environment and humans, including ground vibration, air blast, flying rock, etc. Open-pit mining is the most widely used …
Five blasting events in the FYS granite aggregate quarry have been studied, and design parameters have been obtained. As an indicator of blast-induced environmental discomfort, vibrations and air ...
The article presents the analysis of the drilling and blasting operations at the Ponds-Mokhovoye-Yaskinskoye granite-gneiss quarry, during which the need to make changes in the parameters of ...
Blasting today is not simply about breaking the rock into manageable pieces, but properly fragmenting and placing that rock to minimise overall quarry costs and environmental effects. • Anthony …
A better approach – than attempting to blame factors that are beyond the shotfirer's control – is to try to solve these problems by following a systematic approach to identify what is causing the toe. This will reduce excess blasting, uneven floors, and possibly mechanical removal.
This review discusses some nonexplosive rock breakage methods, particularly the hydraulic splitter and expansive chemical agents, that can be employed instead of the conventional blasting method...
Blasting is a pivotal technique in quarrying, entailing controlled explosions to fracture rock formations for extraction. It is highly efficient in breaking down rocks into large quantities of material swiftly.
The drill and blast method is used in many quarries to win stone for crushing, but there are alternatives. Patrick Smith reports European restrictions on blasting operations are now …
The drill and blast method is used in many quarries to win stone for crushing, but there are alternatives. Patrick Smith reports European restrictions on blasting operations are now so rigorous that some quarry operators have abandoned the practice in …
14 April, 2020. First published in the April 2020 issue of Quarry Management. Julian Cleeton, director of Stemtek, examines the conventional and alternative methods for …
The Swenson Granite quarry in Concord is expanding to the north, partly to meet demand from customers seeking to reduce their climate impact by using an alternative to curbing made of concrete ...
