Q2 Table 2.A consolidation test data An oedometer test is conducted for a soil sample.The sample is consolidated under vertical stress of 50 kPa. The Time (min) Dial gauge reading (mm) 0.01 194 0.02 193 0.05 190.5 oedometer test finished at 144 min and 0.1 186.5 data are given in Table I. Average thickness of the sample is 20 mm. 0.2 181 0.5 173 Predict the coefficient of 1 168 2 164.5 consolidation (c, in mm2/min) using Casagrande log t method and Taylor square root of t method. Please use the empty graphical papers. 5 161.5 10 160 20 158.5 50 156.9 100 155.7 144 155.1

Q2 Table 2.A consolidation test data An oedometer test is conducted for a soil sample.The sample is consolidated under vertical stress of 50 kPa. The Time (min) Dial gauge reading (mm) 0.01 194 0.02 193 0.05 190.5 oedometer test finished at 144 min and 0.1 186.5 data are given in Table I. Average thickness of the sample is 20 mm. 0.2 181 0.5 173 Predict the coefficient of 1 168 2 164.5 consolidation (c, in mm2/min) using Casagrande log t method and Taylor square root of t method. Please use the empty graphical papers. 5 161.5 10 160 20 158.5 50 156.9 100 155.7 144 155.1

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Concept explainers

Calculation of Settlement

The vertical displacement of the structural foundation due to the loading from the superstructure is known as settlement. It is due to the reduction of air voids present in the soil. The amount of vertical displacement depends on the bearing capacity of the soil on which the foundation is laid. The effect of the settlement depends on the magnitude of settlement, uniformity, and the structural design of the structure. The maximum allowable settlement for residential and office buildings should be less than 18 mm, for industrial buildings, it is 38 mm and for commercial buildings, it is 25 mm.

Question

Table 2.A consolidation test data
An oedometer test is conducted for a
soil sample.The sample is consolidated
under vertical stress of 50 kPa. The
Time (min) Dial gauge reading (mm)
194
0.01
0.02
193
0.05
190.5
oedometer test finished at 144 min and
0.1
186.5
data are given in Table I. Average
thickness of the sample is 20 mm.
Predict the coefficient of
0.2
181
0.5
173
1
168
2
164.5
consolidation (c, in mm?/min) using
Casagrande log t method and Taylor
square root of t method. Please use the
empty graphical papers.
5
161.5
10
160
20
158.5
50
156.9
100
155.7
144
155.1

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