Answered: 3. Find the effective stress at a point…

3. Find the effective stress at a point 1.80 m. below the ground surface if the water surface is 0.6 m above the soil surface. Saturated unit weight of soil is 17.31 kN/m³.

Principles of Geotechnical Engineering (MindTap Course List)

9th Edition

ISBN:9781305970939

Author:Braja M. Das, Khaled Sobhan

Publisher:Braja M. Das, Khaled Sobhan

Chapter9: In Situ Stresses

Section: Chapter Questions

Problem 9.4P

See similar textbooks

Related questions

Q: A circular tank full of water, the tank imposes a uniformly distributed load of 2000 lb/ft2 at the…

Q: A clay stratum 8.0m thick is located at a depth of 6m from the ground surface. The natural moisture…

A: γsclay=G+e1+eγwwe knowSe=wGe=0.56×2.751=1.54so,γsclay=2.75+1.541+1.549.81=16.5688kNm3

Q: A uniformly distributed line load of 500 kN/m is acting on the ground surface. Based on Boussinesq's…

A: Given data- Line load UDL=500 kN/mdepths-z1=2 mz2=4 mTo Find-Ratio of vertical stresses at 2 m and 4…

Q: A vertical load of 300 kN is applied to a 1.5 m * 1.5 m area at the ground surface that is level.a.…

A: Solution Given Data Vertical Load Q=300 KN Square Footing =1.5m*1.5m L=1.5 m B=1.5 m

Q: A circular area on the ground surface is subjected to a uniformly distributed load, q = 2200 Ib/ft2.…

A: “Since you have asked multiple question, we will solve the first question for you. If youwant any…

Q: Calculate the effective stress at point A for the following soil profile:

Q: Consider a circularly loaded flexible area acting on the ground surface. The radius of the circular…

A: z=10ft q=1000lb/ft2

Q: 1. A soil has the following profile and a lateral stress coefficient at rest is 0.45. 0-4 G, = 2.75…

A: Given K0 = 0.45 Take Unit weight of water = 10Kn/m3 Water table is at 5m below the ground…

Q: The profile of a soil consists of a soil layer 4.0 meters below the ground surface. The weight of…

Q: A soil profile shown has a zone of capillary rise in the sand overlying the clay. In this zone, the…

Q: Calculate the effective stress at A. 25 m Sand and- Gravel Water Table Unit Weight (y) = 20.72 kN/m…

A: Following is the given soil profile:

Q: Given in figure is soil profile where the groundwater table is 4m below the ground surface,…

Q: C 6 m B A 5 m 3 m 6 m 3 m Fiq 23 - Prob 23

Q: Point loads of magnitude 100, 200, and 400 kN act at A, B, and C, respectively. the increase in…

Q: Example: Vertical Stresses due to Self Weight of Soil Mass A soil profile is shown in Figure 9.3.…

Q: A layer of soil has the following properties: Capillary rise constant = 0.20cm2, e = 0.36, D10 =…

Q: a. Calculate the variation of o,u ,and o' with depth. b. If the water table is rises to the top of…

A: The given figure shows the soil profile. It is required to calculate the variation of effective…

Q: 3 m 1 m A seepage flow condition is shown in the figure. The saturated unit weight of the soil Yar…

Q: 35 At the construction site, 3 m thick clay layer is followed by 4 m thick gravel layer which rest…

Q: A soil with a unit weight of 18 kN/m3 is loaded on the ground surface by a uniformly distributed…

Q: The profile of a soil consists of a soil layer 3.8 meters below the ground surface. The weight of…

Q: Calculate the stress distribution with depth below the center of the dam, and the stres distribution…

Q: Consider a circularly loaded flexible area on the ground surface. Given: radius of the circular…

A: The increased in stress under the soil is happen by lots of situation like excess load over the…

Q: The water table in soil deposit is 2 m below the ground surface. The soil above the water table has…

Q: P2039 kg/m 10 m 15 m P- 1888 kg/m Saturated clay L Sand

A: Given data Depths Water level Saturated densities Sand Saturated clay

Q: In a clayey sandy silt deposit, the water table is 3.5 m below the surface, but the sand to a height…

Q: 4. A lake with a water depth of 12m in underlain by a soil with a saturated unit weight of 18.2…

Q: Q2/ Determine the variation of total and effective stresses and pore water pressure with depth for…

Q: 2 m e = 0.53 Gs = 2.65 A* 4 m Dry Sand B В e = 0.47 Saturated Sand Gs = 2.67 6 m a. Determine the…

A: Note :- as per our guidelines we are supposed to answer first three subparts unless asked any…

Q: A circular area having a radius of 3m carries a uniformly distributed load of 96 kPa is applied to…

Q: The radius of the circular area is 10 ft, the soil unit weight is  =110 lb/ft3. Compute the…

Q: . A 5-m clay layer lies beneath an 8-m sand layer. The sand is 3 meters below the water surface.…

Q: A river 5 m deep consists of a sand bed with unit weight of 20 kN/m3. Y. = 9.81 kN/m3. The effective…

A: Saturated density and depth of river is given and it has been asked to determine effective stress 5…

Q: A seepage flow condition is shown in the figure. The saturated unit weight of the soil Yet = 18…

A: Given data, Ysat = 18 kN/m. Unit weight of water, Yw = 9.81 kN/m, To find out the vertical stress…

Q: Layer No. Thickness, H Soil Parameters e = 0.52, Gs = 2.62 e = 0.56, Gs = 2.65 w = 20%, e = 0.51 1…

Q: The soil in a deposit underlying an area where a level ground surface exists has a unit weight of 22…

A: Given data: Unit weight of soil = 22 kN/m3. Depth = 5m Lateral pressure = 0.5 vertical pressure.

Q: The saturated unit weight of a 10 m thick clay layer is 20 kN/m3. Calculate the vertical effective…

Q: A layer of sand 5 meters deep overlies a thick bed of clay. calculate the vertical, horizontal,…

A: Vertical stress is the overburden stress is a final value of the weight of rock connects a certain…

Q: A layer of saturated clay 4m thick is overlain by sand 5m deep, the water table being 3m below the…

Q: The total horizontal and vertical stresses at a point X in a saturated sandy medium are 170

Q: groundwater table rise to decrease the effective stress by 15KN/m^2 at the bottom of the clay layer?

Q: Problem 1. The water table in a certain deposit of soil is at a depth of 2m below the ground…

A: Clay strata: Water content=30%, Specific gravity=2.72 Sand strata: Water content=26%, Specific…

Q: . Three point loads, 19000, 20000 and 18000kN, act in line 8 m, 6m apart near the surface of a soil…

A: Given three point loads that are 8m and 6m apart near the surface of soil mass. It is required to…

Q: Problem 1: Point loads of magnitude 100, 200, and 400 kN act at A, B, and C, respectively. Determine…

Q: total effective stress acting at point A,

A: Given data: Unit weight of soil = 20.15 KN/m3 Specific gravity = 9.81 KN/m3

Q: Calculate the effective stress at A. 25 m Sand and- Gravel Water Table Unit Weight (y) = 20.72 kN/m?…

A: Following is the given soil profile:

Q: onsider the soil profile shown in Figure 1.4: How high should the groundwater table rise/drop so…

A: calculate effective stress at c so calculate dry unit weight of dry sand…

Q: Calculate the effective stress at A. 25 m Sand and- Gravel Water Table Unit Weight (y) = 20.72 kN/m…

A: Given: The unit weight of water is 9.81 kN/m3. Consider the diagram,

Q: A 30-kN concentrated load is imposed at the surface of a granular soil deposit. Determine the…

A: (a) The expression for the vertical stress by Boussinesq condition is given by, ∆σv=QZ2IB…

Q: Calculate the effective stress before drawdown in the soil at the depth of soil and depth of water…

A: Given: The depth of soil is 30 ft. The depth of water is 25 ft. The unit weight of soil is 120…

Concept explainers

Methods to Determine Vertical Stress

The load applied to the soil is transferred to the underground. The presence of water at soil pores and solid grains above the soil are the primary components that are responsible for the effective load transfer. Due to the load acting, the internal component of the soil or the underground formations undergoes deformations or a tectonic shift. The amount of deformation depends upon the amount of load acting on the soil surface, which indeed, depends on the weight of everything present above the soil. Due to this, the underground soil element develops internal stresses which try to resist the tectonic changes.

Question

3. Find the effective stress at a point 1.80 m. below the ground surface if the water surface
is 0.6 m above the soil surface. Saturated unit weight of soil is 17.31 kN/m³.

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step by step

Solved in 2 steps with 2 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, civil-engineering and related others by exploring similar questions and additional content below.

Similar questions

Repeat Problem 10.12 for q = 700 kN/m2, B = 8 m, and z = 4 m. In this case, point A is located below the centerline under the strip load. 10.12 Refer to Figure 10.43. A strip load of q = 1450 lb/ft2 is applied over a width with B = 48 ft. Determine the increase in vertical stress at point A located z = 21 ft below the surface. Given x = 28.8 ft. Figure 10.43
A point load of 500 kN is applied at the ground level. Plot the lateral variation of the vertical stress increase at depths of 2 m, 3 m, and 4 m below the ground level.
Refer to Figure 10.48. If R = 4 m and hw = height of water = 5 m, determine the vertical stress increases 2 m below the loaded area at radial distances where r = 0, 2, 4, 6, and 8 m. Circular contact area of radius R on the ground surface Figure 10.48
A 10 ft diameter flexible loaded area is subjected to a uniform pressure of 1200 lb/ft2. Plot the variation of the vertical stress increase beneath the center with depth z = 0 to 20 ft. In the same plot, show the variation beneath the edge of the loaded area.
The water table in a 5-meter soil profile is located 1 meter below the ground. The soil above the water is also saturated due to capillary action. The saturated unit weight of the soil per cubic meter is 20.15 KN. What is the total effective stress acting at point A, which is 0.70 meter above the lowest point?
Consider a circularly loaded flexible area on the ground surface. Given: radius of the circular area, R = 3 m; uniformly distributed load, q = 250 kN/m 2.Calculate the vertical stress increase Δσ at a point located 5 m (z) below the ground surface (immediately below the center of the circular area).
Determine the distribution of the total and effective vertical stress with depth for the soil profile shown.
Soil with a unit weight of 16.97 kN/m^3 is loaded on the ground surface by a uniformly distributed load of 300 kN/m^3 over a circular area 4 m in diameter. Compute the vertical stress increment due to this uniform load at a depth of 5 m below the center of the circular area.
Calculate the vertical stress at a depth of 50 ft below a point 10 ft oubide the corner (along the longer side) of a rectangular loaded area 30 x 80 ft carrying a uniform load of 2500 lb/ft2 .
A layer of saturated clay 4m thick is overlain by sand 5m deep, the water table being 3m below the surface. The saturated unit weights of the clay and sand are 19 and 20 kN/m^3, respectively; above the water table the (dry) unit weight of the sand is 17 kN/m^3 . Determine the effective stress at mid-height of the clay layer in kPa. Round your answer to 2 decimal places.
A circular area having a radius of 3 m carries a uniformly distributed of 90 kPa is applied to the ground. Compute the total vertical stress in kN/m^2 increment due to this uniform load if the unit weight of soil is 18.40 kN/m^3 at point 6 m below the center of the circular area. O a. 129.02 O b. 135.17 O c. 137.66 O d. 27.26
A circular area having a radius of 4.5 m carries a uniformly distributed load of 125 kPa is applied to the ground. Compute the total vertical stress in kPa due to this uniform load if the unit weight of the soil is 17.30 kN/m3 at a point 6 m below the edge of the circular area.