Identical surcharges are placed at groundsurface at sites X and Y, with soil conditionsshown alongside and water table at groundsurface. The silty clay layers at X and Y areidentical. The thin sand layer at Y is continuousand free-draining with a very large dischargecapacity. If primary consolidation at X isestimated to complete in 36 months, whatwould be the corresponding time forcompletion of primary consolidation at Y?Uniform surchargeGroundSite YSite Xsurfacev WaterT tableWater mtableIsotropicsaturated5 msilty clayIsotropicsaturatedThinsandlayersilty clay10 m *Isotropicsaturated5 msilty clayBedrockBedrock

Answered: Image /qna-images/answer/1fda8391-f940-414d-bf6c-866303ccc438.jpg

Identical surcharges are placed at ground surface at sites X and Y, with soil conditions shown alongside and water table at ground surface. The silty clay layers at X and Y are identical. The thin sand layer at Y is continuous and free-draining with a very large discharge capacity. If primary consolidation at X is estimated to plete in 36 months, what would be the corresponding time for completion of primary consolidation at Y? Uniform surcharge Ground Site Y Site X surface Water mr table v Water T table Isotropic saturated 5 m silty clay Isotropic saturated silty clay Thin sand layer 10 m + Isotropic saturated silty clay 5 m Bedrock Bedrock

Identical surcharges are placed at ground surface at sites X and Y, with soil conditions shown alongside and water table at ground surface. The silty clay layers at X and Y are identical. The thin sand layer at Y is continuous and free-draining with a very large discharge capacity. If primary consolidation at X is estimated to plete in 36 months, what would be the corresponding time for completion of primary consolidation at Y? Uniform surcharge Ground Site Y Site X surface Water mr table v Water T table Isotropic saturated 5 m silty clay Isotropic saturated silty clay Thin sand layer 10 m + Isotropic saturated silty clay 5 m Bedrock Bedrock

Fundamentals of Geotechnical Engineering (MindTap Course List)

5th Edition

ISBN:9781305635180

Author:Braja M. Das, Nagaratnam Sivakugan

Publisher:Braja M. Das, Nagaratnam Sivakugan

Chapter11: Ground Improvement

Section: Chapter Questions

Problem 11.4P

See similar textbooks

Similar questions

A clay layer in the field is 4.6 m and is drained at the top only. Under a given surcharge, the estimated max consolidation settlements 310 mm. What is the average degree of consolidation for the clay layer when the settlement is 76 mm? A.) 24.5% B.) 35.38% C.) 18.72% D.) 29.65% Pls answer asap
A 10 m clay layer is sandwiched between two sand layers and subjected to a uniformly distributed load of 100 kPa. If the coefficient of consolidation is 0.005 cm2 /s. length of the drainage path is 5m. What will be the time required for 50% consolidation?
a. Calculate the degree of consolidation of a 6 m thick double drained clay layer after 4862 days since initial loading. The coefficient of consolidation is 1.06 X 10-6 m2/min. b. For the same clay layer, how much time would it take to reach 30% consolidation, if drainage existed on only one boundary?
A soil strata can be described as 6 meters of sand underlain by 4 meters of clay withthe water table located 7 meters from the bottom of said strata. The sand has a dry andsaturated unit weight of 14 kN/m3and 18 kN/m3 resp. On the other hand, pertinent clayproperties are saturated unit weight of 19 kN/m3 , void ratio of 0.8 and liquid limit of 40.Compute the primary consolidation settlement considering the following conditions if auniform load of 100 kPa is acting on the soil. If necessary, assume a logical value of Cs.A. The clay is normally consolidated.B. The pre-consolidation pressure is 190 kN/m2C. The pre-consolidation pressure is 170 kN/m2.
The uniformly distributed load on theground surface is Δσ. Estimate the primary consolidation settlement of theclay layer given these values:H1 1.5 m, H2 2 m, H3 2 mSand: e 0.55, Gs 2.67Clay: e 1.1, Gs 2.73, LL 45Δσ= 120 kN/m2
Given: rw = 0.25 m, rs = 0.35 m, de =4.5 m, cv 5 cvr = 0.3 m2/month, kh/ks 5 2, and Hc = 9 m. Determine: The degree of consolidation for the clay layer causedonly by the sand drains after six months of surchargeapplication
THE FIGURE SHOWS A SOIL FORMATION OF 5M SAND AND 6M CLAY. THE GROUNDWATER TABLE IS 4M BELOW THE GROUND SURFACE. IF A FILL WITH A UNIT WEIGHT OF 17KN/M3 AND A HEIGHT 2M IS PLACED ON THE GROUND, FIND: A. THE PRIMARY CONSOLIDATION SETTLEMENT OF THE CLAY LAYER IF IT IS NORMALLY CONSOLIDATED WITH A COMPRESSION INDEX OF 0.38 AND A VOID RATIO OF 1.52.B. THE TOTAL CONSOLIDATION SETTLEMENT OF THE CLAY 5 YEARS AFTER THE COMPLETION OF PRIMARY CONSOLIDATION SETTLEMENT. TIME FOR COMPLETION OF PRIMARY SETTLEMENT IS 2 YEARS. SECONDARY COMPRESSION INDEX IS 0.02
1. A soil profile is shown in the figure. A uniformly distributed load of 75kPa is applied at the ground surface. The clay is normally consolidated. Compute the secondary settlement 8 years after the completion of primary consolidation. Time for completion of primary settlement is 2 years. Assume secondary compression index = 0.025
A 3 m thick clay layer (single-drained) under surcharge loading underwent 60% primary consolidation in 30 days. Calculate the coefficient of consolidation for the clay. If the ultimate consolidation of 30 mm, calculate the settlement for 30 days.
A clay layer 10m thick that drains at the top only settled 9cm in 3.5 yrs. Given cv = 0.544x10-2 cm2/sec ,find ultimate consolidation settlement and the time for settlement to 90% of total consolidation settlement.
Under a given surcharge, a 5.1 m thick layer has consolidation settlement of 306 mm. Assume Cv=0.003 sqcm/sec. a. What is the average degree of consolidation for the clay layer when the settlement is 85mm? b. How long will it take for 60% consolidation to occur if the layer is drained at the top only? c. How long will it take for 60% consolidation to occur if the layer is drained on both ends? Please answer this asap. For upvote. Thank you very much
A surcharge of 250 kPa is applied over a large area above the soil profile shown below. The clay layer is initially normally consolidated and cv = 0.002 cm2/s. The water table is 3.5 m below the ground surface. Calculate the settlement of the clay layer in mm 40 days after the surcharge was applied. Hint: the final settlement at the end of primary consolidation is equal to 515 mm.