Organic soils are typically characterized by high void ratio, low specific gravity, and high compressibility. Following are the results of a consolidation test on a sample of organic soil obtained from southwest Florida. Pressure, o' (kN/m²) Change in dial reading, AH (mm) 0.242 12 0.201 24 0.317 48 0.552 100 0782 200 2.193 400 4.429 Given that the initial height of the specimen = 20.6 mm, mass of dry specimen = 12 g, area of specimen = 31.67 cm², and G, = 2.49, a. Plot the e-log ơ' curve. b. Determine the preconsolidation pressure. c. Calculate the compression index, C. O Congage learning 2014

Organic soils are typically characterized by high void ratio, low specific gravity, and high compressibility. Following are the results of a consolidation test on a sample of organic soil obtained from southwest Florida. Pressure, o' (kN/m²) Change in dial reading, AH (mm) 0.242 12 0.201 24 0.317 48 0.552 100 0782 200 2.193 400 4.429 Given that the initial height of the specimen = 20.6 mm, mass of dry specimen = 12 g, area of specimen = 31.67 cm², and G, = 2.49, a. Plot the e-log ơ' curve. b. Determine the preconsolidation pressure. c. Calculate the compression index, C. O Congage learning 2014

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

Organic soils are typically characterized by high void ratio, low specific gravity,
and high compressibility. Following are the results of a consolidation test on a
sample of organic soil obtained from southwest Florida.
Pressure, o' (kN/m) Change in dial reading, AH (mm)
0.242
12
0.201
24
0.317
48
0.552
100
0782
200
2.193
400
4.429
Given that the initial height of the specimen = 20.6 mm, mass of dry specimen
12 g, area of specimen = 31.67 cm², and G, = 2.49,
a. Plot the e-log o' curve.
b. Determine the preconsolidation pressure.
c. Calculate the compression index, C
Congage Learning 2014

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