Civil Engineering - Soil Mechanics and Foundation Engineering - Discussion
Discussion Forum : Soil Mechanics and Foundation Engineering - Section 3 (Q.No. 30)
30.
The void ratio of a soil sample decreases from 1.50 to 1.25 when the pressure is increased from 25 tonnes/m2 to 50 tonnes/m2, the coefficient of compressibility is
Discussion:
13 comments Page 1 of 2.
Vikash said:
1 decade ago
Coefficient of compressibility = change in e/change in stress.
= (1.50-1.25)/(50-25).
= 0.01.
= (1.50-1.25)/(50-25).
= 0.01.
Pranav said:
10 years ago
Cc = Change in e/log (Final pressure/Initial pressure).
= (1.50-1.25)/log(50/25) = 0.8304.
= (1.50-1.25)/log(50/25) = 0.8304.
Yogesh said:
9 years ago
@Pranav.
That is Coefficient of Compression index.
That is Coefficient of Compression index.
Mahesh said:
8 years ago
.830 is the correct answer.
Rameshwar said:
8 years ago
CC = change in e/log10(initial stress+increased stress/initial stress).
Cc = 0.25/log(50/25) = 0.83.
Cc = 0.25/log(50/25) = 0.83.
Nandish said:
8 years ago
e0 = initial void ratio = 1.5.
e = final void ratio = 1.25.
P0 = initial pressure = 25 t/m2.
P = final pressure =50 t / m2.
for co efficient of compressibility.
an = ((eo - e) / (p-po)) = (( 1.50-1.25)/(50-25)) = 0.01.
for compressibility index use;
= (( eo - e)/ (log (p/po)).
e = final void ratio = 1.25.
P0 = initial pressure = 25 t/m2.
P = final pressure =50 t / m2.
for co efficient of compressibility.
an = ((eo - e) / (p-po)) = (( 1.50-1.25)/(50-25)) = 0.01.
for compressibility index use;
= (( eo - e)/ (log (p/po)).
(6)
Priya said:
8 years ago
Yes, I agree @Nandish.
(1)
Biki said:
7 years ago
.01 is correct.
The Coefficient of compressibility is asked, log should be used in the denominator if coefficient of compression (also known as compression index).
The Coefficient of compressibility is asked, log should be used in the denominator if coefficient of compression (also known as compression index).
(2)
Prachi said:
7 years ago
The Answer is correct. The Coefficient of compressibility is asked that is e/σ= 0.25/25.
Deepak Baswal said:
7 years ago
.01 is the correct answer.
(1)
Post your comments here:
Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers