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Given the following data for liquefaction analysis. Determine the factor of safety for a 6.0 magnitude earthquake. 1. σvo = 58 kPa 3. (N1)60 = 7.7 5. amax =0.40g 2. σvo’ = 43 kPa 4. Z = 3m

Principles of Foundation Engineering (MindTap Course List)

9th Edition

ISBN:9781337705028

Author:Braja M. Das, Nagaratnam Sivakugan

Publisher:Braja M. Das, Nagaratnam Sivakugan

Chapter3: Natural Soil Deposits And Subsoil Exploration

Section: Chapter Questions

Problem 3.21P

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Concept explainers

Test for Determination of Shear Strength

The term shear strength is often associated with the soil. Shear strength is defined as the resistance to the deformation of soil particles due to the continuous action of shear stress. In short, shear strength is the maximum shear stress that a soil can sustain.

Question

Given the following data for liquefaction analysis. Determine the factor of safety for a 6.0 magnitude earthquake.

1. σvo = 58 kPa 3. (N1)60 = 7.7 5. amax =0.40g

2. σvo’ = 43 kPa 4. Z = 3m

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Given the following data for liquefaction analysis. Determine the factor of safety for a 7.5 earthquake and 6.0 magnitude earthquake.
Can you answer?
Q: I an oedometer test on a specimen of saturated clay (Gs = 2.72), the applied pressure was increased from 107 1o 214 kPa and the following compression readings recorded: TaBLE| Tmen 0 025 05 1 225 4 &5 9 16 Guugelmm) 78 742 732 721 6% 678 &6 643 637 Teme(mi) 25 % 4 s om0 X0 a0 Guge(nm) 629 626 621 618 616 615 610 602 After 1440 min, the thickness of the specimen was 15.30 mm and the water content was 23.2%. Determine the values of the coefficient of consolidation and the compression atios from (a) the root time plot and (b) the log time plot. Determine also the values of the coefTicient of volume compressibility and the coefficient of permeability.
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Modified Mercalli intensity IMM of IX was assigned to an area of about 80 km long and 30 km wide during an earthquake which occurred in the Western United States. Compute the peak ground acceleration (PGA) from this earthquake. Compute the value of PGA by using both equations given below and comment on the results. Estimate the intensity Ijma according the earthquake in the Japanese Meteorological Agency scale. PGA = 0.91·10031-IMM PGA = 1.02 · 100.30-IMM
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