For a normally consolidated clay layer in the field, the following values are given: • Thickness of clay layer = 8,5 ft • Void ratio (eo) = 0,8 Compression index (C.) = 0.28 • Average effective pressure on the clay layer (ob) = 2650 lb/ft • Ao' = 970 lb/ft? • Secondary compression index (C.) = 0.02 What is the total consolidation settlement of the clay layer five years after the completion of primary consolidation settlement? (Note: Time for completion of

For a normally consolidated clay layer in the field, the following values are given: • Thickness of clay layer = 8,5 ft • Void ratio (eo) = 0,8 Compression index (C.) = 0.28 • Average effective pressure on the clay layer (ob) = 2650 lb/ft • Ao' = 970 lb/ft? • Secondary compression index (C.) = 0.02 What is the total consolidation settlement of the clay layer five years after the completion of primary consolidation settlement? (Note: Time for completion of

Principles of Foundation Engineering (MindTap Course List)

9th Edition

ISBN:9781337705028

Author:Braja M. Das, Nagaratnam Sivakugan

Publisher:Braja M. Das, Nagaratnam Sivakugan

Chapter2: Geotechnical Properties Of Soil

Section: Chapter Questions

Problem 2.12P

See similar textbooks

Similar questions

For a normally consolidated clay layer in the field, the following values are given:Thickness of clay layer = 8.5 ftVoid ratio ?? = 0.8Compression index ?? = 0.28Average effective pressure on the clay layer ??′ = 2650 lb ft2 ⁄∆?′ = 970 lb ft2 ⁄Secondary compression index ?? = 0.02What is the total consolidation settlement of the clay layer five years after the completionof primary consolidation settlement? (Note: Time for completion of primary settlement= 1.5 years.)
For normally consolidated clay layer in the field, the ff. values are given: Thickness of clay layer = 8.5ft, Void Ratio = 0.8; Compression Index = 0.28; Average effective pressure on the clay layer is 2650 lb/ft2; ∆σ = 970 lb/ft2; Secondary Compression index = 0.02. What is the total consolidation settlement of the clay layer five years after the completion of primary consolidation settlement? Time for completion of primary settlement = 1.5 years)
For a normally consolidated clay layer in the field, the following values are given: Thickness = 3 m, Natural Void Ratio = 1.30, Compression Index = 0.30, Average effective pressure in the layer is 125 kPa. Estimate the primary consolidation settlement of the layer caused by an increase of pressure of 55 kPa
A normally consolidated clay layer, 3 m thick, has the following properties : Initial void ratio, e0= 0.8 Compression index, Cc = 0.25 Average effective pressure, σ’0 = 125 Kpa Expected pressure increase, Δσ’ = 45 Kpa Secondary compression index, Ca = 0.02 Time of completion of primary settlement = 1.5 years What is the total settlement of the clay layer five years after the completion of the primary settlement?
For a normally consolidated insensitive clay 0_CD= 30°. Deviator stress at failure of the same soil is 250 kN/m2 in CU test. If Skempton's A-parameter at failure is 0.62, find out the confining pressure during the consolidation state. a 280 b. 260 c. 270 d. 250
The void ratio of a 4 m thick consolidated clay is 1.3. The compression index and coefficient of consolidation of the clay is 0.6 and 1m2/year respectively. It is observed that the increase in vertical pressure is equal to the effective overburden pressure. Determine the change in the thickness of the clay layer (in mm).
A normally consolidated clay layer has the following properties: Soil layer thickness: 3.7 m Initial void ratio: 0.63Compression index: 0.29 Average effective pressure: 133 kPa Expected pressure increase: 58.7 kPa Secondary compression index: 0.02 Time for completion of primary settlement: 3 yearsa. Determine the void ratio at the start of the secondary consolidation. b. What is the total settlement of the clay layer 9 years after the start of primary consolidation settlement?
Under normal loading condition, a 3.6-m thick clay (normally consolidated) has po = 190 kPa and eo = 1.22. A surcharge of 190 kPa reduces its void ratio to 0.91. The hydraulic conductivity of the clay for the loading range is 6.1 x 10-5 m/day. a. What is the coefficient of volume compressibility of the clay? b. What is the coefficient of consolidation of the clay? c. How long will it take for this clay layer to reach 60% consolidation if it is drained on one side only? Please answer this asap. For upvote. Thank you very much
Under normal loading condition, a 3.6m thick normally consolidated clay has an in-situ overburden pressure of 100 kPa and initial void ratio of 1.22. A surcharge of 190 kPa reduces its void ratio to 0.98. The hydraulic conductivity of the clay for the loading range is 6.1 x 10-5 m/day. Determine the full consolidation settlement of the clay layer Determine its compression index Determine the coefficient of volume compressibility of the clay How long will it take for this clay layer to reach 60% consolidation if it is drained on one side only?
Q#3: For a normally consolidated clay layer in the field, the following values are given. Thickness of clay layer = 2.6 m Compression index = 0.28 Average effective pressure on clay layer 127 KN/m² Secondary compression index = 0.02 Δσ’ = 46.5 KN/m² Void ratio = 0.8 Time of Primary settlement = 1.5 years What is the total consolidation of the clay layer five years after the primary consolidation settlement?
A normally consolidated clay layer, 4m thick, has the following properties:Initial void ration, eo = 0.65Compression Index, Cc = 0.20Average effective pressure, σ’o = 100 kPaExpected pressure increase due to loading on ground surface = 30 kPaSecondary compression index, Cα = 0.02Time for completion of primary settlement = 1.5 yearsWhat is the total settlement of the clay layer five years after the completion of primary consolidation settlement?
The compression diagram of a pre-compressed clay indicates that it had compressed under a pressure of 240 kN / m2. The compression ratio is 0.9; Your space vacuum under a pressure of 180 kN / m2 is 1.5. Estimate the void ratio if the effort s increases to 360 kN / m2.