An unsupported excavation is made to amaximum possible depth of clay soilhaving (Unit weight50 kN/m?, o = 30°, The active earth18 kN/m³) , c =pressure at the base level ofKN/m?.excavation is

Answered: Image /qna-images/answer/03aa758b-1695-496b-a1c2-dcf79198318b.jpg

Answered: ximum possible depth of clay soil wing…

ximum possible depth of clay soil wing (Unit weight O KN/m?, = 18 kN/m³) , c = C 30°, The active earth essure at the base level of KN/m?. cavation is -- --

Fundamentals of Geotechnical Engineering (MindTap Course List)

5th Edition

ISBN:9781305635180

Author:Braja M. Das, Nagaratnam Sivakugan

Publisher:Braja M. Das, Nagaratnam Sivakugan

Chapter13: Slope Stability

Section: Chapter Questions

Problem 13.13P

See similar textbooks

Related questions

Q: eights was pressed into soft clay in a borehole. The torque was applied and gradually increased to…

A: Using relation :s=TπD2H2+D36

Q: A soil layer consists of 4 meters of sand underlying 5 meters of clay. The water table is naturally…

A: Solution: Considering the diagram: Height of capillary in the clay layerhc=Ce…

Q: Problem3) A rectangular concrete slab, 3m×4m, rests on the surface of a 8m fully saturated clayey…

A: Given Water content, w=43%=0.43 CC=0.3 S=1 Load on slab, Q=5000 kN Calculate vertical stress σz as;…

Q: Assuming static condition, what is the stress in the pipewall if the wall thickness is 12.50 mm and…

Q: A. For a saturated rock, prove th Yu -(-) (t+e

Q: A sandy soil has a drained angle of friction of 32 degrees. The deviation stress at failure is 400…

Q: 8 m-thick layer of stiff saturated clay is underlain by a layer of snad (Figure Q3). The sand is…

A: Calculate the maximum depth of cut H?

Q: Determine Total stress , Effective stress and pore Water pressure

A: Given data : γDry Sand=17 KN/m3γSat Sand=20 KN/m3γSat Clay=15.5 KN/m3

Q: B) ) A river bed consists of sand layer overlying impermeable rock; the depth of water is in river…

Q: The borehole records at a level site revealed the following details: 0-0.25 m Topsoil. Sand. Water…

A: B(width of base foundation) = 18m D (depth of foundation) = 2.25m d1 (depth of top soil) = 0.25m d2…

Q: Total Height of Given that the initial height is 0,0190 m, mass of dry specimen 95,20 gram, Specific…

A: Consolidation is defined as the process of compression of soil due to expulsion of the pore water…

Q: 4. A 10 m thick layer of shift, saturated clay is underlain by a layer of sand. The sand is under…

Q: A 12 m depth of sand layer has a dry unit weight of 18 kN/m' and submerged unit weight of 11 kN/m'…

A: Gs = 2.76 LL = 48% Cv = 10-2 cm2/s or 10-6 m2/s ∆σ = 120 kPa NOTE : As per guidelines, 3 parts…

Q: subjected to an upward seepage head of 1.85 m What depth of coarse sand would be requirec above the…

Q: i. The following information is collected from rock coring process in which the total core advance…

A: Given data,total core advance 65cmcore recovery20761016FINDa)total core recoveryb)the core recovery…

Q: Qus: In a direct shear test on sand (C = 0) area of circular box was 50 cm ^ 2 normal load was 750…

A: Normal load (P) = 750 KN Shear load (V) = 460 KN Area of box = 50 cm2 Cohesion (C) = 0 Determine…

Q: Y=15kN/m³ Y=12.5 kN/m²³ 0 p = 150 kPa e = 0.95 KON.C.=0.57 m = 0.4 Y = 27.5 kN/m³ sand 9m Clay […

Q: H 10m 6m SATURATED CLAY Yo=19 kN/m A 2.5m SAND A175 kN/m Calculate the max. depth of cut H, that a)…

A: Given:-

Q: Assuming unit formation width, determine the average porosity for the fol- lowing system when a =…

A: Find: Average Porosity for the system

Q: A point load Q = 250 kN is applied to the ground surface. What is the minimum depth Zi in m below…

A: Data given Find: Minimum depth Zi in m below the point load such as the increase in vertical total…

Q: Find h ?if the effective stress at bottom=200.85 kN/m². clay Y=18 kN/m³ @=12% 3m 3m 4m Silt G-2.71…

Q: Y=15kN/m³ 몰 Y = 12.5 kN/m³ 0p = 150 kPa l. = 0.95 C. C₁ = 0.62 Cv = 0.135 Y=27.5 kN/m3³ sand 9m Clay…

A: P = 25000 kNDepth of clay layer = 18 m NOTE : As per guidelines, first 3 parts are solved. Request…

Q: - B) A 6 m thick of stiff saturated clay with ysat. - 18.9 kN/m² is underlain by layer of the sand ,…

A: Solution given in next step

Q: R-1: For the following soil system determine the effective stress and pore-water pressure at the…

A: Saturated unit weightγsat=18 kN/m3 Unit weight of water γw=10 kN/m3

Q: Q/Along flexible strip Looting of 2.5m width having a smooth base, is subjected to aurilor…

A: B = 2.5 m q = 80 kPa

Q: 1200 kN 400 kN Clayey SAND y = 17.5 kN/m³ 1.5 m Ysat = 18 kN/m³ %3D c' = 30 kN/m?, o' = 28° 4.5 m…

Q: Question B-1 : A water tank with 30 m x 10 m and a weight of 6000 kN was built above a 2 m thick…

Q: A. Compute the effective stress at the bottom of the clay. B. If the water table rises to the level…

A: Given data in question. Unit weights Depths Water table To find out Effective stress at bottom

Q: I whle drilling a well a rock layer Is encountered at 10000 ft. depth with an excess pressure…

A: H=1000*0.3048 H=3048m 1kg/m2 =0.0014223 psi

Q: What is the rating of the rock under "Strength of Intact Rock Material" parameter? A 7 B) 15 (C) 12…

Q: Refer to Figure P3.3. Vane shear tests were conducted in theclay layer. The vane (tapered)…

A: Given: h = 127 mm d = 63.5 mm iT = iB = 45o T = 51 Nm Liquid limit = 46 Plastic limit = 21

Q: Capillarity Capillary action cause negative pore water pressure above the ground water.(so the…

A: The diagram can be shown as at 2m, Let γsat1…

Concept explainers

Calculation of Settlement

The vertical displacement of the structural foundation due to the loading from the superstructure is known as settlement. It is due to the reduction of air voids present in the soil. The amount of vertical displacement depends on the bearing capacity of the soil on which the foundation is laid. The effect of the settlement depends on the magnitude of settlement, uniformity, and the structural design of the structure. The maximum allowable settlement for residential and office buildings should be less than 18 mm, for industrial buildings, it is 38 mm and for commercial buildings, it is 25 mm.

Question

An unsupported excavation is made to a
maximum possible depth of clay soil
having (Unit weight
50 kN/m?, o = 30°, The active earth
18 kN/m³) , c =
pressure at the base level of
KN/m?.
excavation is

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

The figure below shows a proposed site where an excavation will be made. The 12 ft layer of sand will be removed, so that the top of the 30 ft normally consolidated clay layer will be exposed (Assume that changes in GWT do not affect γt of clay). a. Assume that the water-table location remains the same during excavation. Compute the σ, σ′v, and u values at the middle of the clay layer before and after the excavation b. Assuming 1-D conditions, compute how much the clay layer will deform due to this excavation, in inches. Specify whether this is settlement or heave
Site investigation is to be made for a structure 100m length x 60m width. The soil profile is shown. If the structure is subjected to 200kPa, what is the approximate depth of the borehole? Assume unit weight of water = 9.8 kN/m^3. D =140
(a) Compute the intensity of passive earth lios pressure at a depth of 8m in a cohesionless sand with an angle of internal ange friction of 30° when water table rises to the ground level. Saturated unit weight of sand is 21 kN/m3; yw = 9.81 kN/m (b) A vertical excavation was made in a clay deposit having unit weight of 22 kN/m3. It caved in after the digging reached 4m depth. Assuming = 0, calculate the magnitude of cohesion.
An excavation is made with a vertical face in a clay soil which has C_{u} = 50kN /(m ^2) gamma_{1} = 18kN / (m^3) and S_{n} = 0.261. The maximum depth of a stable excavation will be nearly?
The soil condition in the field is as follows: c = 20 kN/m², = 20°, Y = 20 kN/m³ The maximum depth of unsupported excavation is m.
. Qus
As per Rankine's formula the passive earth pressure at a depth 8 m in dry cohensionless and with angle a integral frication of 38 deg and unit weight of dry sand as 200 kg/m³ (take value of sin 38 degree as 0.6157)
Complete and correct solution please
Answers a) 0.864 b) 18.76 kN/m3 c) 5.91 meters
An excavation is to be made in purely cohesive soil deposit having c = 20 kN/m² and unit weight = 16 kN/m³. The depth to which the vertical sides of the excavation will remain stable without side supports will be:
Table 5. Adjustment factor for trench production Type of Material Adjustment Factor Loose (sand, gravel, loam) 0.60-0.70 Average (common earth) 0.90-0.95 Firm (firm plastic soils) 0.95-1.00
Urgent solution.....i will upvote