Blasting Or Ripping
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- Blasting Or Ripping
When to Blast vs. Hammer. If you're working on roads, tunnels, large site projects, or dams, you will likely use the blasting method over slower methods like ripping or using a jackhammer.
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Blasting or ripping of some parts of the ore that cannot be dug easily. This involves drilling and placing explosives, or ripping with large bulldozers. Loading onto trucks and hauling to a crushing facility. Trucks ranging in size from 30 to 180 tonnes are used in different size mines.
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Many Different Types of Drilling, Blasting and Ripping Machines for Sale. Our quarry and aggregate equipment inventory includes: Rotary drills: rotary and rotary blasthole drills offer an impressive maximum bit load range of well over 160,000 lbs., enabling them to handle your most challenging hard or soft rock drilling jobs. You can also select a drill that can provide a …
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schedule and cost estimation, facilitate the selection of proper ripping equipment, and maximize production. If rock cannot be ripped, blasting will be used to remove rock. However, blasting will incur higher construction cost, affect the general configuration of the finished roadway template, and possess adverse impact on surrounding
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A ripping versus blasting decision will depend on the total volume of material to be moved, the production capabilities and costs of the ripping tractor(s) and on the size and …
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mounted, heavy-duty excavating equipment without drilling, blasting, or ripping. Rock is defined as material which cannot be effectively excavated during general grading with a D-8 or equivalent dozer drawing a new single-tooth ripper. Effective excavation is defined as the ability to remove 10 cubic yards or more of material after
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1) Blasting and ripping are methods used in civil engineering projects for excavation and construction. 2) Blasting involves placing explosive materials in boreholes drilled into rock to fragment it. Ripping uses bulldozer-mounted tines to shear and break up rock and soil. 3) Both methods have advantages over other excavation techniques like lower costs but require …
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Alternatively, ripping is the process carried out in harder rock by prolonged spikes attached to bulldozer. Blasting option is considered after adopting ripping as the ultimate mechanical method. Predication of geology and homogeneous hard material are key factors for making ripping work competent and profitable [3].
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If production requirements can be achieved, vertical ripping can be an excellent alternative to drill and blast, not only in terms of reducing or eliminating costs but also in minimising disruption to production and better …
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Where feasible, ripping is generally preferred over blasting because it is considerably less expensive; ripping costs are typically 50 to 65% less than blasting. Ripping is also significantly less dangerous than blasting and requires fewer permits and special precautions. Ripping can be done in close proximity to populated areas or other places ...
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For example rock over burden can be broken by blasting or ripping, machineries such as back acting/dragline excavator; bulldozer can be used for the overburden removal. Moreover, ground surface which is intact has better bearing capacity than ground in which its top has been removed. ... Blasting is the most widely used method to excavate ...
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Where feasible, ripping is generally preferred over blasting because it is considerably less expensive; ripping costs are typically 50 to 65% less than blasting. Ripping is also significantly …
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Based on the geotechnical report, some of this rock is fractured and is "rippable" by a large excavator, other rock is expected to have to be blasted. Since the majority of the …
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fracturing offer good possibilities for ripping. Solid, thickly bedded rock formations may require drilling and blasting. A discussion of ripping vs. blasting, and when each may be considered appropriate, is included later in this handbook. 7 Sedimentary Rock Summary While some materials still cannot be ripped or ripped economically, heavier
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Rock excavation shall be defined as the excavation of all hard, compacted or cemented materials that require blasting or the use of ripping and excavating equipment larger than defined for common excavation. All excavations shall be completed and maintained in a safe and stable condition throughout the total construction phase.
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Goodmans found the Surface Miner very effective in hard rock where conventional 'ripping' with a D10 was proving to be ineffective. The Sandstone was cut in multiple pass-es of up to 600mm in depth and laid down on the trimmed surface for pick up.
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Environmental and safety concerns have made production ripping a popular alternative to drilling and blasting. Design advances, including hydraulic enhancements, increased horsepower, and …
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Blasting is the controlled use of explosives to break up rock and allow for subsequent excavation and removal. But blasting is often neither practical or allowed. That leaves mechanical methods of rock excavation: …
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Based on the results of the planned feed area carried out at West Banko Pit 1 North, it has been determined that the delivery area is divided into two areas, based on the treatment to be carried out, namely the ripping area and the blasting area (Fig. 10). The ripping area and the blasting area are 246.63 hectares. The ripping area shows the ...
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For moderately strong rocks, limited drilling and blasting followed by ripping is used sometimes as means of material preparation. Full scale drilling and blasting is used in rock-mass that cannot be excavated directly or cannot be loosened effectively/ economically by ripping (with or without limited drilling and blasting). 4.1. ...
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Excavation of overburdenmaterial in open pit mine is usually done by digging, ripping or blasting method depending on the characteristics of materials to be removedRipping is . usually preferred because it is more economical than the other methods. A common problem related to the ripping is wearing of the ripper tips which resulted in the ...
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06. RIPPING VS BLASTING - Free download as Excel Spreadsheet (.xls / .xlsx), PDF File (.pdf), Text File (.txt) or read online for free. The document provides information on a mining project to remove 3,000,000 bank cubic meters (bcm) of overburden material over 720 working hours. It details the activities, equipment used, productivity, operating costs and total investment required.
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normal ripping, there are two possibilities to be considered: using widely spaced explosives followed by rippers, or using tandem ripping tractors moving one ripper shank.
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Ripping. Ripping Equipment; Breaking; Blasting Design. Blasting projects must be designed with several factors in mind, including the type of explosives used, borehole diameter, and loading levels. Each type of blasting-presplit, smooth, and cushion blasting-has its own formula.
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9. BLASTING ON A PRE-CUT FACE In many mines coal-cutting machines are used to provide an additional free face for blasting.While this may be under, over, middle or side cut, the most common practise in Indian mines is to have undercut face. For blasting on cut faces the following conditions must be compiled with: The length of the shot hole should be at least …
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•Blasting or ripping hard materials before attempting to load them will often increase loader production in such materials. CE 419 King Saud University 39. Job Management •In selection of a loader, consideration must also be given to the following: –(1) the weight of …
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Rock excavation is defined as the excavation of all hard, compacted, or cemented materials that require blasting or the use of ripping and excavating equipment larger than defined for common excavation. The excavation and removal of isolated boulders or rock fragments larger than 1 cubic yard encountered in materials otherwise conforming to the ...
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Rock excavation is defined as the excavation of all hard, compacted, or cemented materials that require blasting or the use of ripping and excavating equipment larger than defined for common excavation. The excavation and removal of isolated boulders or rock fragments larger than 1 cubic yard encountered in materials otherwise conforming to the ...
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Proses blasting tambang dimulai dengan penyusunan rencana, termasuk identifikasi jenis batuan, perencanaan pola dan jarak lubang peledakan, serta pemilihan bahan peledak yang sesuai. Setelah itu, dilakukan …
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[1, 2]Metode yang digunakan dalam pembongkaran overburden antara lain direct digging, ripping dan blasting. [2]Direct digging dapat dilakukan pada aktivitas pembongkaran dengan material atau tanah ...
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The Cabinda phosphate project will employ an open-pit mining method utilising conventional trucks and shovels. The mining operation will not involve blasting or ripping as the …
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Ripping vs. drilling and blasting In a choice of whether to rip, or drill and blast, the first consideration is cost. This initial cost consideration must. then be weighed with other factors, such as using available equipment, determining the best end use of the material, and so on. Transporting and loading methods also must be
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Blasting and hammering through solid rock, substantial surface, or subsurface pavement is slow, unpredictable and expensive and significantly increases your risk of liability. Choosing a …
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blasting or ripping as a means of ground preparation is the method of applying energy to break the ground thus making It suitable for handling by excavation or loading plants. Blasting methods use
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