Civil Engineering - Soil Mechanics and Foundation Engineering - Discussion
Discussion Forum : Soil Mechanics and Foundation Engineering - Section 2 (Q.No. 9)
9.
A pile is being driven with a drop hammer weighing 1800 kg and having a free fall of 1.00 m. If the penetration with last blow is 5 mm, the load carrying capacity of the pile, -according to the Engineering News formula, is
Discussion:
22 comments Page 2 of 3.
Dheeraj said:
6 years ago
Thanks @Abhay.
Aryan said:
6 years ago
Thanks all for explaining.
Reka said:
6 years ago
Thanks, @Abhay.
Pratima Yadav said:
1 decade ago
Engineering News Formula,
Q = W*h/ (s+c).
Where,
Q = Energy loss.
W = weight of the ram.
h = fall height of the ram (inches).
s = measured penetration of the pile per blow (inches).
c = 0.1.
Q = W*h/ (s+c).
Where,
Q = Energy loss.
W = weight of the ram.
h = fall height of the ram (inches).
s = measured penetration of the pile per blow (inches).
c = 0.1.
Ragini said:
7 years ago
Thanks for the explanation @Abhay.
Ravindra said:
7 years ago
S -5 blow for drop hammer.
And 20 blow for a steam hammer.
C -2.5 for drop hammer in cm.
And .25 for steam hammer.
Q= W(load in kg)*H(free fall in cm)/Fos*(S+C).
And 20 blow for a steam hammer.
C -2.5 for drop hammer in cm.
And .25 for steam hammer.
Q= W(load in kg)*H(free fall in cm)/Fos*(S+C).
@rocky said:
9 years ago
C is known as elastic compression.
Samrat said:
10 years ago
Dear @Mann.
Can you elaborate how you get the answer 10 tonne?
What FOS you have taken? Is it F = 10/3?
Can you elaborate how you get the answer 10 tonne?
What FOS you have taken? Is it F = 10/3?
Mann said:
10 years ago
For drop hammer we use c = 2.5. So correct answer is 10 tonne.
10 tonnes said:
1 decade ago
W = 1000 kg.
H = 1 m = 100 cm.
F = 6.
S = 0.5 cm.
And C = 2.5.
Now formula is: W*H/ (S+C) = 10 tonnes.
H = 1 m = 100 cm.
F = 6.
S = 0.5 cm.
And C = 2.5.
Now formula is: W*H/ (S+C) = 10 tonnes.
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