Answered: Calculate the OCR and OCM for the…

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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Question

a) Calculate the OCR and OCM for the midpoint of the clay layer
prior to fill placement.

b) Calculate the settlement for the clay layer in the soil profile shown in problem 3, except
assume the clay is normally consolidated.

c) Calculate the settlement for the clay layer in the soil profile shown in problem 3, except
assume the clay has a preconsolidation stress of 1800 psf.

d) Assume the time to primary consolidation is 15 years,
and the design life of the project is 50 years. What will the secondary compression of the clay
layer be?

Answers

3 1.45 in
a) OCR = 4.06 OCM = 3014.8 lb/ft2
b) 6.0 in
c) 3.53 in
d) 0.79 in

Transcribed Image Text:3. Calculate the settlement for the soil profile shown. AS3 8' 18' ↓ Sand, y = 117 lb/ft³ Sand, Ysat = 119 lb/ft³ eo = 0.9 C₁ = 0.06 Fill, y = 110 lb/3 V Cc = 0.25 C₁ = 0.03 oc' = 4000psf clay Ysat = 120 lb/ft³ sand

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