a) Before the construction of the embankment. b) Immediately after the construction of the embankment. c) When ground water table lies at surface of ground level and below the foundation and discuss the change in the stresses values if any.

a) Before the construction of the embankment. b) Immediately after the construction of the embankment. c) When ground water table lies at surface of ground level and below the foundation and discuss the change in the stresses values if any.

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 2.10P: The soil profile at a site consists of 10 m of gravelly sand underlain by a soft clay layer. The...

See similar textbooks

Related questions

Q: Determine the total vertical stress, pore water pressure, and the effective stress of the soil mass…

A: Effective stress = total stress -pore water pressure Total stress =total unit weight *height pore…

Q: A concrete culvert is to be constructed in a bed of sand (e = 0.65) for drainage purposes. The crown…

Q: A) Only adding a wide surface load of great pressure (e.g. embankment). B) Only drilling a vertical…

A: To Determine: The following separate, unrelated actions cause consolidation settlement in the clay…

Q: Two footings rest in a layer of sand 2.7 m thick. The bottoms of the footings are 0.90 m below the…

A: ANSWER:- 64.6 Which is approximately equal to 69.2 mm So , option (A) IS correct answer…

Q: . It was speculated that failure occurred by bearing capacity failure. Clarify whether this is so or…

A: Ultimate bearing capacity using general bearing capacity equation is given by qu=c'Ncscicdc+…

Q: rectangular concrete slab, 3 m x 4.5 m, rests on the surface of a soil mass. The load on the slab is…

Q: a. Find the cohesion of the sandy clay b. Find the angle of shearing resistance

A: Tri axial compression test:

Q: A 4-m diameter circular footing is supporting a water tank. The total weight of the footing, tank…

Q: Why do we need to subtract 112.4 - 64.2 in the initial effective stress at the middle of the clay…

Q: Consider the figure shown below. Assuming there is a hydrostatic uplift that varies uniformly from…

A: unit wt of water = 10kN/m2 unit wt of concrete = 23.5 kN/m2 Calculate weight of dam w1…

Q: Given a 5m built-up column pinned at the top and fixed at the bottom with the following properties:…

Q: Problem 1.2. Find the minimum diameter of a steel wire, which is used to raise a loa of 4000 N if…

Q: is required to find soil pressure at a depth of 10 ft beneath the interior corner A and exterior…

Q: A circular foundation of diameter 8 m supports a tank. The base of the foundations of 1 m below the…

A: Given data Diameter of circular foundation= 8 m Depth of foundation = 1 m Vertical load= 20MN…

Q: LEC 11 – LATERAL EARTH PRESSURE THEORY – SAMPLE PROB. Zoom Leave OSolved this Problem: • REC Due to…

Q: (b) A residential building is to be constructed in Ghala. Strip footing is proposed for the walls of…

A: Pitched trusses, also known as common trusses, are defined by their triangular shape. These…

Q: b) A residential building is to be constructed in Ghala. Strip footing is proposed for the walls of…

Q: The foundation (base) of a long retaining wall is required to support the load (including…

A: Given: The unit weight of the soil is 18 kN/m3. The groundwater is 18 m below. The width of the…

Q: A cantilever wall is to be installed in a granular material which has a unit weight of 122 pcf, a…

Q: DAM. A dam is triangular in cross-section with the upstream face vertical. Water is flushed with the…

Q: I 1.0 m 23.5 kN/m³ Yw = 9.81 kN/m³ Yc 0 = 60 ° F 3.0 m 8.0 m

Q: 2.1.Q.1: Determine the total vertical stress, pore water pressure, and the effective stress of the…

Q: Water is flowing in a 2m deep rectangular aqueduct, with a measured speed of 2m/s at the surface.…

Q: A square footing 3 x 2 m carries a column load of 3500 kN resting 0.60 m below the ground on the…

A: To Find :- Preconsolidation pressure Total effective stress at center of clay Settlement of clay

Q: foundation soil is 0.45.

A: Given:- Specific weight of concrete = 150 lb/ft3Coefficient of friction between base and foundation…

Q: A is 6 storey building will be constructed on a clay deposit. Its foundation will be 3 m depth which…

A: Given depth of the foundation = 3m No. of stories = 6 plan dimensions = 25×25 Pressure P = 90kpa…

Q: Figure shows the geometry of a strip foðting supporting the load bearing walls of a three storied…

Q: Question no. 33 A footing 2m x Im exerts a uniform pressure of 150 kN/m² on the soil. Assuming a…

A: Given data, Footing size = 2m×1m Uniform pressure on the footing= 150kN/m² Load dispersion= 2v:1H

Q: Y-15 kN/m '-28° 4m G.WT. Yu 20 kN/m 4-33° c'0 4m The above figure shows a concrete gravity retaining…

Q: Show solution with drawings. a) Find the effective stress at a point 4.2 m below the ground surface…

A: The figure for the system of soil will be as per given data:

Q: n Figure (1) below. (b) If W-10 kN/m, and L -3.5 m, determine the sla en at 2 m from point A.…

Q: H, - 4 m e- 0.6 G, = 2.65 Groundwater table H; = 3 m e- 0.52 G, = 2.68 C. ーミーーミー

Q: A circular foundation of diameter 8m supports a tank. The base of the foundation is at 1m below the…

A: Step 1

Q: A SOIL PROFILE HAS 2 DIFFERENT LAYERS OF SOIL. SOIL 2 WITH sg = 2.72 AND MOISTURE CONTENT = 60%, IS…

A: Given data ; Soil 1: SG=2 w=0.65 Soil 2: SG=2.72 w=0.6 H= 3m for each layer.

Q: ile of Sm the load. 5-11 A uniform surface load of 220 kPa is applied over the area shown below.…

A: Given Data: The uniform surface load is, q=220 kPa To Determine: The stress increase in soil due…

Q: How does upward seepage affect effective stress? Why? What about downward seepage? Explain…

Q: Calculate the stress at the end of the clay stratum σ, and the increment Δσ that the footing…

A: Given Data: The load on the footing is P=1200 kN. The depth at which the pressure in clay stratum is…

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

Q: Calculate the settlement of the 10-ft-thick clay layer that will result from the load carried by a…

A: Given Thickness of clay layer= 10 ft Footing size= 5ft ×5ft

Q: Regarding geotextiles used in separation, what is the required burst pressure of a geotextile…

A: Given, Maximum size of the stone, Da= 75 mm Tire inflation pressure, Pt=1000 kPa Cumulative…

Q: If a house is constructed over a natural soil, what will be the total and vertical horizontal…

Q: An oil storage tank 50 ft in diameter imposes a maximum loading of 2,500 psf onto the ground surface…

A: Given; q = 2500 psfR =502=25 ftz = 25 ft

Q: Calculate the effective stress at Point C. Assuming soil is dry above water table and saturated…

Q: There is a flood that takes place above the ground surface up to 1.3 m in height. Assume the unit…

Q: A circular foundation of diameter 8 m supports a tank. The base of the foundation is at 1 m below…

A: Given Diameter, d=8m γsat=19 kN/m3γd=17.6 kN/m2ϕ=25° Load , P=20 MN Cu=80 kPa

Q: Determine the stability of the wall in different conditions mentioned down in table and provide a…

A: Case 1 Ho=5 mδ=i=24°z=Ho=5mC'=0(sand)ρd=1600 kg/m3φ=36°ρsaturated=1600-1000=600 kg/m3For infinite…

Q: shown in figure (not to scale). A large embankment table (GWT) is located at the surface of the clay…

Q: Three footings are placed at locations forming an equilateral triangle of 13 ft sides.

A: Given- Triangle side (a)=13 ftQ=112.4KZ=9ft

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

2.1.Q.1: Determine the total vertical stress, pore water pressure, and the effective stress of
the soil mass at the Centre of the clay layer and at the Centre of the sand layer for the
conditions stated below when an embankment is to be constructed from a fill on ground
surface. For more details, please find excel sheet
Note: Clay layer follows sand layer
a) Before the construction of the embankment.
b) Immediately after the construction of the embankment.
c) When ground water table lies at surface of ground level and below the foundation
and discuss the change in the stresses values if any.
Given data:
Depth of Clay layer= 5
Depth of Sand layer= 5
Saturated unit weight of clay kN/m³ = 17
Saturated unit weight of sand kN/m³ = 18
Height of Embankment= 4
Unit weight of Embankment kN/m³= 17

Expert Solution

This question has been solved!

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

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step 3

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 3 steps

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

1. The following is a sketch of the proposed embankment, calculate the addition of vertical stress (Bousinesq method / graph below) at the depths of points A and B. Assume the unit weight of the soil stockpile = 20 kN / m3. 2. Calculate the added vertical stress at points A and B as deep as Z = 8 m, under the rectangular load
A site is underlain by a soil that has a unit weight of 18.7 kN/m3above the groundwater table and 19.9 kN/m3below. The groundwater table is located at a depth of 3.5 m below the ground surface. Compute the a) total vertical stress, b) pore water pressure, and c) effective vertical stress at the following depths below the ground surface: 2.2 m (Point A), 4.0 m (Point B), 6.0 m (Point C), d) draw a sketch and show the points( A, B, C) on the sketch.
The soil profile at a site consists of 10 m of gravelly sand underlain by a soft clay layer. The water table lies 1 m below the ground level. The moist and saturated unit weights of the gravelly sand are 17.0 kN/m3 and 20.0 kN/m3, respectively. Due to some ongoing construction work, it is proposed to lower the water table to 3 m below the ground level. What will be the change in the effective stress on top of the soft clay layer?
A long embankment 30 m wide is to be built on ground. The net vertical pressure applied by the embankment (assumed to be uniformly distributed) is 90kpa. The soil profile and stress distribution beneath the center of the embankment is also shown. The value of mv for the upper clay is 0.35m2/MN, and for the lower clay mv=0.13m2/MN. Tthe permeabilities of the cllays are 10-10m/s and 10-11m/s for the upper and lower soil respectively. Determine the final settlement under the center of the embankment due to consolidation
Figure Q1(c) shows the soil profile with groundwater table is 6 m from thesurface impermeable layer. Calculate the total stress, pore water pressureand effectives tress at points D.
The following is a sketch of the proposed embankment, calculate the addition of vertical stress (Bousinesq method / graph below) at the depths of points A and B. Assume the unit weight of the soil stockpile = 20 kN / m3.
A site is underlain by a soil that has a unit weight of 18.7 kN/m3 above the groundwater table and 19.9 kN/m3 below. The groundwater table is located at a depth of 3.5 m below the groundsurface. Compute the total vertical stress, pore water pressure, and effective vertical stress atthe following depths below the ground surface:a. 2.2 mb. 4.0 mc. 6.0 m
1. Side slopes for rock fill 1V:2H. Calculate the minimum crest width of a breakwater using B = 3*kΔ*(W/γa)1/3 . Given data: Stone weight = (8) t, Specific weight = 2,7 t/m3, Layer thickness coefficient =1,00 and Porosity percentage = 37 2. For cubed shaped stone (or concrete), determine dimension of the stone for weight: W = (10+a) t, specific weight: γa = 2,4 t/m3
An embankment consists of clay fill for which c=25 kPa and angle of internal friction is 260 9from consolidated undrained test with pore pressure measurement) The weight of fill per unit volume is 18.64 kN/m3. Compute the stress in kPa at depth of 20 m. Show free body diagram a.21.6 b.372.8 c.192.8 d.62.5
An embankment consists of clay fill for which c=25 kPa and angle of internal friction is 260 9from consolidated undrained test with pore pressure measurement) The weight of fill per unit volume is 18.64 kN/m3. Compute the stress in kPa at depth of 20 m. a. 192.8 b. 62.5 c. 21.6 d. 372.8
A soil profile, under surcharge load of 25 kN/m2 at ground level, consists of 6m sand and 3m clay layer. Ground water table is 2m below sand layer. Dry unit weight and saturated unit weight of sand is 15.80kN/m3 and 16.90kN/m3 respectively. Clay layer, Gs=2.67 and saturated unit weight is 18.80 kN/m3. Determine a)Increase in stress at the mid layer of clay b) With dewatering 2m, what is the stress increase at the mid layer of clay c) How much must the water level be lowered to me more effective than the surcharged load?
To compute the effective stress for a condition where the groundwater table lies below the ground surface, and for the condition where strata of soils of different types and weights exist, two different approaches are possible. Describe about the two approaches.