rock breaker productivity calculation

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Copy of Rock Blasting Fundamentals - PDHonline

and calculating the quantity of explosives required for blasting rock, based on substantial professional experience. zBy considering the rock formation, it is possible to produce the desired result. PDHonline Rock Blasting Fundamentals Slide No. 7 Geologic Characterization of the Rock Mass A geologist or geotechnical engineer should evaluate the geologic character and rock mass properties

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Drill and Blast Method

Depending on the type of rock, a variety of securing measures can be implemented: wire mesh, tunnel arches, stakes or so-called bolts, which can be driven into the rock. The final method for stabilizing rock faces is most commonly rock bolting. A jumbo is used here to first drill holes into the rock. The holes vary from 2.4-6 metres long. Next a steel rod with a wedge threaded on the end is

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How to Estimate Stone Walls | Hunker

Calculate the tonnage of rock needed by converting the cubic foot volume into tons. Use the standard formula of 15 cubic feet of rock = 1 ton of rock. Divide the total cubic foot volume of rock by 15 to determine the number of tons of rock to purchase. For example, 180 cubic feet of rock divided by 15 = 12 tons of rock to complete a 30 x 2 x 3 foot wall. Dry Stack Material Volume Step 1 A dry

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Sand control - OilfieldWiki

These studies show that the rock failed and began to produce sand when the drawdown pressure is 1.7 times the compressive strength. Sonic Log . The sonic log can be used as a way of addressing the sand production potential of wells. The sonic log records the time required for sound waves to travel through the formation in microseconds. The porosity is related to the sonic travel time. Short

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(PDF) 2/11/2014 How to Calculate Excavator

2/11/2014 How to Calculate Excavator Productivity | eHow

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How do you calculate excavator production per

Essentially, excavator productivity is typically measured by the volume of loose or rock soils the machine can displace in a hour of continuous operation. Understand the formula for calculating

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Rate Analysis of Excavation in Earthwork

The cost of excavation depends on the depth of excavation, type of soil, method of excavation to be carried out and the distance where the excavated soil has to be disposed.

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3. CALCULATION OF MACHINE RATES

Production dozing in rock. Pushloading in rocky, bouldering borrow pits. High impact conditions. 15,000 Hr: 12,000 Hr: 8,000 Hr : 1/ Adapted from Performance Handbook, Inc. Table 3.1.c - Guide for selecting ownership period based on application and operating conditions. 1/ ZONE A: ZONE B: ZONE C: WHEEL LOADERS: Intermittent truck loading from stockpile, hopper charging

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Montabert: Productivity and Performance |

It is specifically engineered to provide high energy per blow and to surpass the performance of other rock breakers in its category. It offers two operating speeds with automatic selection: high energy for work on hard surfaces and high frequency for softer surfaces.

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3. CALCULATION OF MACHINE RATES

Production dozing in rock. Pushloading in rocky, bouldering borrow pits. High impact conditions. 15,000 Hr: 12,000 Hr: 8,000 Hr : 1/ Adapted from Performance Handbook, Inc. Table 3.1.c - Guide for selecting ownership period based on application and operating conditions. 1/ ZONE A: ZONE B: ZONE C: WHEEL LOADERS: Intermittent truck loading from stockpile, hopper charging

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How to calculate productivity of construction

How to calculate productivity of construction equipment like excavator, dozer, rock breaker, riper.. Answer / mandar i believe that the 75% efficiency taken is of operator then the rest taken is not applicable as it is included in the efficiency.

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Rock Mechanics - University of Notre Dame

shallow depth h can be calculated as: σ v = γh + P a γ = unit weight of rock h = depth to point below surface P a = atmospheric pressure (usually neglected) • This equation assumes a consistent body of rock above point • If multiple layers of different rock types σ v = γ ah a + γ bh b + γ ch c 8 Stress, Strain, Deformation Characteristics! Stress, Strain, Deformation

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Copy of Rock Blasting Fundamentals - PDHonline

and calculating the quantity of explosives required for blasting rock, based on substantial professional experience. zBy considering the rock formation, it is possible to produce the desired result. PDHonline Rock Blasting Fundamentals Slide No. 7 Geologic Characterization of the Rock Mass A geologist or geotechnical engineer should evaluate the geologic character and rock mass properties

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Chapter 8 BLAST DESIGN

Calculating Powder Factors The POWDER FACTOR is a relationship between how much rock is broken and how much explosive is used to break it. It can serve a variety of purposes, such as an indicator of how hard the rock is, or the cost of the explosives needed, or even as a guide to planning a shot. Powder factor can be expressed as a quantity of rock broken by a unit weight of explosives. Or

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Mining and Rock Technology — Mining

Whether you're developing a decline, drilling to break up ore or installing rock support, we engineer an extensive range of underground drill rigs for mining development and production. underground drill rigs are productive, reliable and economical – even in your most demanding production and face drilling applications.

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Formulas and Calculations for Drilling,

These calculations include increase mud density, dilution, mixing fluids of different densities, oil-based mud calculations, solids analysis, solids fractions, dilution of mud system, displacement—requiring barrels of water/slurry, evaluation of hydrocyclone, and evaluation of the centrifuge. The chapter also presents an elegant formula for calculating the dilution of a mud system. It ends

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Procedure for Excavation in Rocks - The

Many times excavation in rocks are required for foundation of structure. The procedure for excavation in rocks is different than excavation in ordinary soils. It requires skilled manpower and specialized tools and equipments for excavating the rocky ground. Procedure for Excavation in Rocks Excavation in rock requiring drilling and blasting shall be done under coordination []

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Hydraulic Breaker Owner s Manual - Rock Breakers Inc.

When trenching, the breaker is expected to fracture a solid mass of rock into manageable pieces. The size The size of the material could be hundreds of cubic yards, and the energy will be quickly absorbed.

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explosives – Mining and Blasting

3. Blast design Calculations and empirical formulas: In designing a blast, following principles should be kept in mind: Explosive force functions best when the rock being blasted has a free face toward which it can break. There must be an adequate void or open space into which the broken rock can move and expand (or swell).

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For calculating the productivity we have to know

find the discharge of water through a horizental venturimeter having 400mm dia at the inlet main and 150mm dia at thorat.if the diffrential gauge between inlet and thorat shows a pressure head of 25cm mercury. assume coefficient discharge 0.98 and specfic gravity of mercury as 13.6.

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CHAPTER 4 - EXCAVATION AND EARTHWORK

The area shall be calculated in sqm. correct to two places of decimal and cubical contents In cum correct to two places of decimal. (D) In case, measurements of rock in pit excavation are not possible, the measurements shall be taken as stack measurements. The excavated material shall be stacked properly and separate payment for stacking is not admissible. Deduction shall be made for voids at

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Earth moving Equipment function and standard

MOTOR GRADER Productivity m3 / hour : COLD LAID ASPHALT PAVEMENT. 100 mm course blade mixed,spread & compacted 47.6 m3 / hour . 100 mm course plant mixed,spread & compacted 35.7 m3 / hour. 4 TRUCKS (Dumper Truck): Dumper Truck Earth moving Equipment •Trucks are an extremely important part of the earthmoving and material-moving process. •They are basically a tractor and a

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EARTHMOVING PLAN - YAMAZAKI

5.4 Productivity of Combination Work by oneself 6.Workability and Soil Condition Bulldozer, Ripper, Rock breaker Wheel Loader, Track Loader Loading shovel (Front shovel) Power shovel (Backhoe, Dragline, Clamshell) BWE(Bucket Wheel Excavator) Bulldozer, Scrapedozer, Scraper Dump truck ( Rigid, Articulated), Wagon, Conveyer Clowler dump Bulldozer, Wheel dozer, Motor grader Tire roller

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CHAPTER 4 - EXCAVATION AND EARTHWORK

The area shall be calculated in sqm. correct to two places of decimal and cubical contents In cum correct to two places of decimal. (D) In case, measurements of rock in pit excavation are not possible, the measurements shall be taken as stack measurements. The excavated material shall be stacked properly and separate payment for stacking is not admissible. Deduction shall be made for voids at

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