Answered: an initial void ratio of 1.11. It is…

Engineering

Civil Engineering

an initial void ratio of 1.11. It is compressed and the void ratio changed to 0.82. Determine

Principles of Foundation Engineering (MindTap Course List)

8th Edition

ISBN:9781305081550

Author:Braja M. Das

Publisher:Braja M. Das

Chapter2: Geotechnical Properties Of Soil

Section: Chapter Questions

Problem 2.9P

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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

A clay layer having a thickness of 14.23m has an initial void ratio of 1.11. It is compressed and the void ratio changed to 0.82. Determine the reduction in thickness, in mm, of the clay layer. Round off to three decimal places.

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A clay layer having a thickness of 12.51 m. has an initial void ratio of 1.39. It is compressed and the void ratio changed to 0.87. Determine the reduction in thickness, in mm., of the clay layer.
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Solutions pls
In a normally consolidated clay specimen, the following data are given from the laboratory consolidation test. e₁ = 1.10 σ= 65.0 kN/m² €₂ = 0.85 o₂ = 240.0 kN/m² a. Find the compression index C. b. What will be the void ratio when the next pressure incre- ment raises the pressure to 460.0 kN/m²?