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A single acting steam hammer weighs 200 kg. The hammer falls through a height of 80 cm to drive a pile to an average penetration of 1 cm per blow under the last few blows. Determine the allowable load (in kN) for the pile using engineering news formula. (Answer up to one decimal place)
Correct answer is '2133.3'. Can you explain this answer?
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A single acting steam hammer weighs 200 kg. The hammer falls through ...
Given data:
- Weight of the single acting steam hammer = 200 kg
- Height of fall = 80 cm
- Average penetration per blow = 1 cm
Engineering News formula:
The Engineering News formula is used to determine the allowable load for a pile based on the weight of the hammer, height of fall, and the average penetration per blow. The formula is given as:
Allowable load = (Weight of hammer × Height of fall) / Average penetration per blow
Calculations:
Substituting the given values into the formula, we can calculate the allowable load for the pile.
Allowable load = (200 kg × 80 cm) / 1 cm
First, we need to convert the height of fall and average penetration per blow from centimeters to meters.
Height of fall in meters = 80 cm / 100 = 0.8 m
Average penetration per blow in meters = 1 cm / 100 = 0.01 m
Now we can substitute the converted values into the formula.
Allowable load = (200 kg × 0.8 m) / 0.01 m
Simplifying the expression:
Allowable load = 16,000 kg/m
To convert the result to kilonewtons (kN), we need to multiply by the conversion factor of 9.81 m/s^2, which is the acceleration due to gravity.
Allowable load = 16,000 kg/m × 9.81 m/s^2 = 157,440 N
Finally, we can convert the result to kilonewtons by dividing by 1,000.
Allowable load = 157,440 N / 1,000 = 157.44 kN
Therefore, the allowable load for the pile using the Engineering News formula is approximately 157.4 kN.
- Weight of the single acting steam hammer = 200 kg
- Height of fall = 80 cm
- Average penetration per blow = 1 cm
Engineering News formula:
The Engineering News formula is used to determine the allowable load for a pile based on the weight of the hammer, height of fall, and the average penetration per blow. The formula is given as:
Allowable load = (Weight of hammer × Height of fall) / Average penetration per blow
Calculations:
Substituting the given values into the formula, we can calculate the allowable load for the pile.
Allowable load = (200 kg × 80 cm) / 1 cm
First, we need to convert the height of fall and average penetration per blow from centimeters to meters.
Height of fall in meters = 80 cm / 100 = 0.8 m
Average penetration per blow in meters = 1 cm / 100 = 0.01 m
Now we can substitute the converted values into the formula.
Allowable load = (200 kg × 0.8 m) / 0.01 m
Simplifying the expression:
Allowable load = 16,000 kg/m
To convert the result to kilonewtons (kN), we need to multiply by the conversion factor of 9.81 m/s^2, which is the acceleration due to gravity.
Allowable load = 16,000 kg/m × 9.81 m/s^2 = 157,440 N
Finally, we can convert the result to kilonewtons by dividing by 1,000.
Allowable load = 157,440 N / 1,000 = 157.44 kN
Therefore, the allowable load for the pile using the Engineering News formula is approximately 157.4 kN.
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A single acting steam hammer weighs 200 kg. The hammer falls through ...
For a single acting steam hammer,
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A single acting steam hammer weighs 200 kg. The hammer falls through a height of 80 cm to drive a pile to an average penetration of 1 cm per blow under the last few blows. Determine the allowable load (in kN) for the pile using engineering news formula. (Answer up to one decimal place)Correct answer is '2133.3'. Can you explain this answer?
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