Opening: 00AM - 24PM
Controlling the Adverse Effects of Blasting

Controlling the Adverse Effects of Blasting This module addresses the control of offsite impacts that result from blasting, namely: • vibrations, • airblast, and • flyrock. Much of the information in the module is derived from the Surface Mining Control and Reclamation Act of 1977 (SMCRA). The performance standards apply to all

[PDF]Get Price
Best practices for avoiding highwall hazards - aggman

Aug 12, 2019 · When performing drilling and blasting activities at the top of the site, watch for back break, cavities, and overhang or sloping conditions. Establish a safety line based on distance from any of those conditions, rather than simply the edge itself. Anyone working beyond that safety line must use fall protection. 2 Create wider benches.

Get Price
Drilling - Wikipedia

Drilling is a cutting process that uses a drill bit to cut a hole of circular cross-section in solid materials. The drill bit is usually a rotary cutting tool, often -point.The bit is pressed against the work-piece and rotated at rates from hundreds to thousands of revolutions per minute.This forces the cutting edge against the work-piece, cutting off chips (swarf) from the hole as it is ...

Get Price
Drilling and Blasting - Health and Safety Authority

This section looks at all aspects of drilling and blasting and the use of explosives at Quarries and covers profiling of the Quarry face and tracking of drillholes, the preparation of shotfiring rules, the appointment and necessary competence of the explosives supervisor, shotfirer and driller and the specific responsibilities they have including their statutory duties.

Get Price
Drilling and blasting - Wikipedia

Drilling and blasting is the controlled use of explosives and other methods such as gas pressure blasting pyrotechnics, to break rock for excavation. It is practiced most often in mining, quarrying and civil engineering such as dam, tunnel or road construction.

  • History · Procedure · Rock supportGet Price
J. Roy's Inc. - For All Your Drilling & Blasting Needs

Blasting caps, electric blasting caps, delay electric blasting caps, and non-electric delay blasting caps. Electric Blasting Cap. A blasting cap designed for and capable of detonation by means of an electric current. Electric Blasting Circuitry. Bus wire. An expendable wire, used in parallel or series, in parallel circuits, to which are ...

Get Price
Facts About: Underwater Drilling & Blasting

and consideration to adjusting explosives charges to avoid overbreak when blasting is done. Overbreak is defined as the removal of rock beyond the required lines and levels. Line drilling and blasting The line drilling technique involves drilling a series of holes that are spaced only several inches apart on the desired line of breakage.

Get Price
Construction safety in hard rock tunnelling (Handout) - .

Drilling Charging Blasting Ventilation Shotcrete Mucking out Rockbolt Survey The Tunnel Cycle ... avoid the job hazards i.e. regular safety meetings, briefings, seminars & audits. ... Microsoft PowerPoint - Construction safety in hard rock tunnelling (Handout)

Get Price
I-Blast Software

New functionalities. For the most versatile and powerful blasting design solution ! Whether you are a mining engineer designing blasts everyday, a manager looking for a better control of blasting operation or a blaster starting out learning how to improve blast design, DNA-Blast Software has the .

[PDF]Get Price
Drilling Techniques for Mining Exploration - Equipment ...

Dec 13, 2018 · Reverse Circulation Drilling. Reverse circulation drilling, or RC drilling, is more expensive than rotary air blasting. It also requires more equipment and greater driving skills. However, RC drilling results in greater sample accuracy, making it a more popular form of mining exploration.

[PDF]Get Price
Rock Drilling and Blasting | Brubacher Excavating, Pad ...

Our pre-blasting analysis, geotechnical reports and exploratory rock probes enable us to avoid the delays and unanticipated costs that may come with buried obstacles. Our team can provide the full scope of site development services or stand-alone drilling and blasting services.

Get Price
FTE Drilling

In February 2016, FTE Drilling was hired to drill phases 1 and 2 for the blasting related to the construction of leaching installations. Since we were facing solid granite, we brought in a ROC L8 down-the-hole drill, equipped with a compressor and a dust-eliminating system.

Get Price
Héming Limestone Quarry France - RESPEC

RESPEC also proved that the drilling and blasting would not affect the chemistry of the raw material and that implementing drilling and blasting would reduce operating costs significantly while avoiding large capital expenditures.

Get Price
Best Practices to ... - Mine Safety and Health Administration

Since 2010, blasting accidents involving flyrock, misfires and toxic fumes have claimed the lives of seven miners. Two miners perished in a single event in 2013 and four died in explosives accidents in that year alone. The victims ranged from thirty to sixty-three years of age and their mining experience varied from a few weeks to thirty-six years.

Get Price
Drilling and Blasting Services - Commercial & Residential ...

Maine Drilling & Blasting arrived in Dyer Brook the first of May. The quarry was a new quarry developed specifically for the MDOT I95 Island Falls to Oakfield reconstruction. The project required 150,000 yards of dense graded aggregate and 40K hot mix stone. Getting the quarry up and running was vital to meeting a very aggressive schedule to ...

[PDF]Get Price
Drilling and Blasting Safety is Critically Important

MSHA's Accident Prevention Program includes tips on drilling and blasting safety. Following are several items the agency wants to bring to the attention of plant operators or contractors performing drilling and blasting operations in quarries. Avoid Surface Entanglements

Get Price
P&Q University Lesson 4- Drilling & Blasting : Pit & Quarry

Aug 28, 2019 · Blasting is heavily regulated and watched by federal, state and local agencies. In terms of processing, blasting is the critical first step in the rock-fragmentation process. Maximum profitability depends largely on an optimized blast. Consider that drilling and blasting are the first operations performed in any hard rock quarry operation.

Get Price
Drilling ... - Metallurgist & Mineral Processing Engineer

Drilling in stopes is done with pneumatic-feed stopers, light handheld hammer drills of the jackhammer type and heavier plugger machines, drifters of the Leyner type mounted on crossbars or on columns, and drifters (and, now, only occasionally, piston drills) mounted on tripods; more recently, with the more extensive use of bort instead of carbon for diamond drilling, diamond drills are ...

Get Price
Best practices for avoiding highwall hazards - aggman

Aug 12, 2019 · When performing drilling and blasting activities at the top of the site, watch for back break, cavities, and overhang or sloping conditions. Establish a safety line based on distance from any of those conditions, rather than simply the edge itself. Anyone working beyond that safety line must use fall protection. 2 Create wider benches.

Get Price
case of goa and mining companies avoiding drilling and ...

case of goa and mining companies avoiding drilling and blasting. gq4 grinding machines, welding rectifier, ag4 grinding machine Mining Mine Case. grinding media ball goa mining equipment expoter some of the products Biodiversity in the Sacred Groves Case Study Goa Goa, Oxford Mining applied of drilling and blasting for the mining company . Read ...

Get Price