The 20ft high clay fill shown below is proposed to be constructed over a layer of soft clay. A 5ft gravel layer is placed above the soft clay in order to facilitate drainage, assume it has the same unit weight as dense gravel. Answer the following:What is the magnitude of the settlement one year after the construction begins?What is the effective stress at Point A one year after construction begins if Point A is 25 feet below the GWT? Assume that the soft clay has the following soil properties:OCR = 1.5Cc = 0.22C, = 0.03Cy = 0.35ft/daye, = 1.0 Clay FillY = 100 pcf20 ft5 ftGWTSaturated ClayYsa = 110 pcfA40 ftDense Gravel26 ft3 130 рcf

Given: The properties of soft clay: OCR=1.5Cc=0.22Cr=0.03Cv=0.35e0=1.0 Consider the figure,

Answered: The 20ft high clay fill shown below is…

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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The 20ft high clay fill shown below is proposed to be constructed over a layer of soft clay. A 5ft gravel layer is placed above the soft clay in order to facilitate drainage, assume it has the same unit weight as dense gravel. Answer the following:

What is the magnitude of the settlement one year after the construction begins?
What is the effective stress at Point A one year after construction begins if Point A is 25 feet below the GWT?

Assume that the soft clay has the following soil properties:
OCR = 1.5
Cc = 0.22
C, = 0.03
Cy = 0.35ft/day
e, = 1.0

Clay Fill
Y = 100 pcf
20 ft
5 ft
GWT
Saturated Clay
Ysa = 110 pcf
A
40 ft
Dense Gravel
26 ft
3 130 рcf

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