A drilling jumbo is a specialized piece of equipment used in mining, tunneling, and underground construction to drill holes in rock or other hard surfaces. The output of a drilling jumbo typically refers to the volume of rock or material that can be drilled and prepared for blasting or removal within a specific timeframe, often expressed in cubic meters per hour or per shift.

　　Factors Affecting Drilling Jumbo Output:

　　1. Drilling Speed: The rate at which the jumbo drills holes into the rock, usually influenced by rock hardness, hole diameter, and drill bit type.

　　2. Hole Depth and Diameter: Deeper and wider holes take more time, impacting overall productivity.

　　3. Rock Type and Condition: Harder rock reduces drilling efficiency, while fractured or weak rock might speed it up.

　　4. Number of Booms: Jumbos often come with multiple booms (arms), allowing for simultaneous drilling. More booms typically increase output.

　　5. Operator Skill: Experienced operators can manage the machine more efficiently, improving overall performance.

　　6. Shift Duration: Longer shifts with fewer interruptions naturally result in more drilled meters.

　　Calculation of Drilling Jumbo Output:

　　To calculate the output of a drilling jumbo, you can follow these steps:

　　1. Determine the number of holes drilled in a shift.

　　- For example, if the jumbo drills 100 holes per shift.

　　2. Calculate the volume of each hole based on its diameter and depth:

　　3. Total volume per shift:

　　4. Adjust for Efficiency:

　　- Factor in machine downtime, rock fragmentation efficiency, and other variables like the time to reposition the machine.

　　For instance, if you drill 100 holes per shift with a diameter of 0.1 meters and a depth of 5 meters, and considering 85% efficiency:

　　This is a basic estimation. You would need actual machine specifications and site conditions for a precise calculation.