Using Modeling to Reduce Backbreak

Properly modeling the timing of the blast, visualizing timing contours, throw direction, and burden relief will help blasters reduce backbreak issues stemming from timing …

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Bringing up old rock / gravel...want to restore parking lot …

It can dig up the gravel, mix it well and then lay it back down. The operator will be able to separate the larger rock and lay it in the bottom. Reactions: YanmarFever

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Safe and Efficient Rock-Breaking Strategies for …

Breaking through rock is a common yet challenging task in excavation. It requires a careful blend of power, precision, and safety to ensure the job is done efficiently and without incident. With the right rock-breaking …

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Failure Mechanism of Back-Break in Bench Blasting of Thin Terrane

Combined with the continuous-discontinuous element method (CDEM), the influence of rock strata on the failure mechanism of back-break was analyzed. The results …

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Failure Mechanism of Back-Break in Bench …

Combined with the continuous-discontinuous element method (CDEM), the influence of rock strata on the failure mechanism of back-break was analyzed. The results show that structural failure...

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Using Modeling to Reduce Backbreak

Properly modeling the timing of the blast, visualizing timing contours, throw direction, and burden relief will help blasters reduce backbreak issues stemming from timing designs. Following the rules of thumb paired with …

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Breaking up gravel to install driveway -- without breaking …

My driveway is completely paved with concrete except for the last 10 feet or so where it connects to the street, which is just compacted gravel. The gravel is a nuisance and I …

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Safe and Efficient Rock-Breaking Strategies for Excavators

Breaking through rock is a common yet challenging task in excavation. It requires a careful blend of power, precision, and safety to ensure the job is done efficiently and without …

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P&Q University Lesson 4: Drilling & Blasting

This problem can occur most severely when blasting up-dip parallels with the strike of the rock. This back break can also cause problems on drilling succeeding blasts, …

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Blasting Mechanics Revisited: The mechanics of rock breakage …

The role of the explosive has two functions in blasting: first, to break the rock, and second, to move it. As far back as 1963, it was known that borehole pressures reached in …

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How to Get Rid of Unwanted Rocks and Gravel

Removing gravel and boulders or rocks yourself can be a back-breaking job. Boulder removal, for example, typically takes multiple strong-bodied people depending on how …

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Back and Side Break

One common factor in all blasts is back or side break. Simply put, back or side break is breakage that occurs OUTSIDE of the drill pattern. For example, if we are drilling on a …

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What is backbreak in rock blasting?

Backbreak is the unintended fracturing or damage to the rock mass behind the final row of drill holes after a blasting operation. This phenomenon is undesirable as it can …

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Breaking up gravel to install driveway -- without breaking my back …

My driveway is completely paved with concrete except for the last 10 feet or so where it connects to the street, which is just compacted gravel. The gravel is a nuisance and I …

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Blasting Mechanics Revisited: The mechanics of rock …

The role of the explosive has two functions in blasting: first, to break the rock, and second, to move it. As far back as 1963, it was known that borehole pressures reached in excess of 2 million psi due to gas pressure. At the time, however, new high-speed cameras were developed and the shock wave produced by the explo…

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