Answered

IDNLearn.com makes it easy to get reliable answers from knowledgeable individuals. Find the information you need quickly and easily with our reliable and thorough Q&A platform.

A 3.0 m thick singly drained normally consolidated clay layer has eo 5 0.89, Cc 5 0.46, and cv 5 3.5 m2 /year. The effective overburden pressure at the middle of the layer is 105.0 kN/m2 . It is proposed to build a large warehouse that is expected to impose a pressure of 50.0 kN/m2 at the ground level.
a. What would the primary consolidation settlement be?
b. If the engineer proposes to preload the site with a pressure of 90.0 kN/m^2, how long should this surcharge be left to ensure there is no postconstruction settlement when the warehouse is built?

Sagot :

Batolisisidn

Answer:

= 0.9 years ≈  1 year

Explanation:

A) Determine the primary consolidation settlement

attached below is the detailed solution

primary consolidation = 358.77 mm

B) first calculate the degree of consolidation

looking at the attached graph at u = 46% , Tv = 0.35

using the formula ;  Tv = ( Cv*T ) / H^2

where ; Cv = 3.5m^2

             Tv = 0.35

             H = 3 m ( single drained )

hence T = ( Tv * H^2 ) / Cv

              = ( 0.35 * 9 ) / 3.5

              = 0.9 years ≈  1 year

attached below is the remaining part of the solution

View image Batolisis
View image Batolisis
We appreciate your participation in this forum. Keep exploring, asking questions, and sharing your insights with the community. Together, we can find the best solutions. Thanks for visiting IDNLearn.com. We’re dedicated to providing clear answers, so visit us again for more helpful information.