A 11.8 m long cantilever sheet pile retaining wall is to be used to support the 6.2 m deep excavation as shown in figure. Plot the profile of horizontal effective stress in front and back of the retaining wall. Use the Rankine method. Goound level 2.5 m Y G.w.L Gravel wz-9

Q: For a factor of safety of 2 on the passive resistance, determine the required depth of penetration…

A: Given,D' - initial trial depth of penetrationkp - Passive earth pressure coefficient.Dense sand (kp)…

Q: A braced excavation 30 feet deep is proposed at a site underlain by clay, as shown in the sketch…

A: Given: A braced excavation 30 ft deep is proposed in a clay stratum having two layers with different…

Q: Q=400KN Ground Level 38° #16KN.m3 K=0.90 5m Dense Sand tan-0.45 N-80 Saturated Sand 38° 4m…

A: Given a soil profile consisting of dense sand for the top 5 m, saturated sand for next 4 m and hard…

Q: roblem 3. Beam ABCD shown below has a pinned support at A and a roller support at C. For he given…

A: To draw SFD and BMD

Q: 38KN/m2 From the laboratory tests, the shear strength parameters obtained are c and ø=19°, the…

A:

Q: A 5 m wide braced excavation is made in a saturated clay, as shown in Figure P19.1, with the…

A: Solution Given Data c=20 kN/m2ϕ=00γ=18.5 kN/m3

Q: I need an answer to the factor of safety again overturning.

A: GIVEN- 25 KN load applied by crane γ2=18 KN/m3ϕ'2=24°c'2=15 kpa Using Rankine earth pressure Theory-…

Q: 1 below The wall is anchored at a point 0.5 m below the top of the wall. The groundwater is at 4 m…

A: Ka=(1-sinϕ)/(1+sinϕ) Ka=(1-sin35)/(1+sin35)=0.27 Kp=(1+sin35)/(1-sin35)=3.69 Kp=3.69 Factor of…

Q: Q.1) A section of cantilever sheet-pile wall is given in the figure below. Considering both passive…

A:

Q: A 600mm diameter pile is embedded in 3 layers of dense sand at a depth of 17m. Nq = 86. The…

A:

Q: center-to-center spacing of struts in the plan = 5

A:

Q: The footing shown in Figure (1) carries (24 columns) spaced at (5 m) center to center. The vertical…

A:

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: Determine the sheet-pile section modulus for the braced cut described in Problem 15.3. Given: σall =…

A: The formula to calculate the lateral pressure of braced cuts in the sand is given by, σa=0.65γHKa…

Q: A long trench is excavated in medium dense sand for the foundation of a multistorey building. The…

A: Given :

Q: A circular pile having a diameter of 0.45 m is 10 m long is embedded in a layer of loose sand with…

A: d=0.45 mL=10 mγ= 17.6 kN/cu.mγsat= 20.4 kN/cu.mϕ= 34°FOS= 3Nq= 79Depth of water table =3 mK= 1.15 To…

Q: Calculate the forces on the supports in the internally supported excavation system given in the…

A: In soil, lateral pressure refers to the force acting in horizontal directions. Designing bridge…

Q: T18 Properties of soil and concrete %3D 4m = 30° Cohesion =0 Coefficient of base friction = 0. 50…

A: “Since you have posted a question with multiple sub-parts, we will solve the first three subparts…

Q: Find the allowable capacity of the belled caisson shown. The diameter of the bottom of the bell is 4…

A:

Q: A vertical cut is made in a purely cohesive soil with a volumetric weight of ym = 1.90 cohesion of…

A:

Q: 5. A vertical sheet pile supports a horizontal backfill having a height of 4.5 m. The backfill has…

A:

Q: If there is a layer of sand (lower layer) under artesian pressure (causes upward flow), calculate…

A: Given data:γsat,clay=120 lb/ft3γw=62.43 lb/ft3H=?

Q: emine the factor of safely against failure for the slope shown in Figun

A:

Q: entilation shaft. Calculate the radial, circumferential and shear stresses 0.2m into the rock at the…

A: Rock shaft is vertical But if we see from top view which is presented in next step we can see…

Q: Show complete solution (need ASAP): ?? = 0.3 ?/??? (horizontal direction) ?? = 0.4 ?/??? (vertical…

A: The permeability is basically defined as the ability of the given soil specimen to allow the passage…

Q: Assuming a sheet pile wall is constructed to retain 12.5m of soil, as shown in Figure 2, and the…

A:

Q: Q I/ Single footing (3 by 1.5) m shown in Figure I carrying 900 kN centric load, estimate the…

A: NOTE - Hi! Thank you for the question As per the honor code, We’ll answer the first question since…

Q: a. The sheet-pile section modulus, assume that Gan = 170 x 10° kN/m² b. The required section modulus…

A: The lateral pressure of braced cuts in the sand is given by σa=0.65γHKa Ka = tan245-ϕ2= tan245-402=…

Q: 9.5 Refer to Figure 9.14. Given: L = 4 m; for sand, y = 16 kN/m2: ø' = 35°; and, for clay, Yat =…

A: Question is based on cantilever sheet pile wall penetrating a granular value. Length , unit weight…

Q: " consider a braced cut excavation which is 45' deep and which has supports 17, 28' and 40'. The…

A: depth- 45'depth of support- 5',17',28' and 40'c=1100 psfγ=110 pcfspacing- 10 feetTo determine- a)…

Q: If in Figure 8.19 B₁ = 5.0 m, B₂=3.0 m, H = 4 m, z = 3 m, and the embankment applies a force of 137…

A: This can be calculated using the following equation:σz = q * (1 - z/H)where:σz is the stress…

Q: 1.A shaft is to be excavated in the layered soil profile shown here. Assume Ko lateral earth…

A:

Q: Problem #1 The figure below shows a cantilever sheet-pile wall penetrating a granular soil. Here, L₁…

A:

Q: A 600mm diameter pile is embedded in 3 layers of dense sand at a depth of 17m. Nq = 86. The…

A: Given, Nq = 86  D = 600 mm or 0.6 m

Q: A 2.5 m wide strip footing carrying a net wall load of 550 kN/m is placed at a depth of 1.5 m below…

A:

Q: For the foundation shown in Figure (2), calculate the immediate settlement for a creep time of (8…

A: Solution: Given: σol = 160 kPa t = 8 years Strip footing = 8 m x 10 m Schmertmann method:…

Q: Figure below shows an excavation in sand, supported by braced sheet pile walls. The unit weight of…

A:

Q: b) Design an anchored sheet pile bulkhead as shown in Let L1 = 4 m, L2 = 9 m, I; = 2 m, y = 17…

A:

Q: 8) A sheet-pile wall retaining a silty sand is shown in the figure. Using the Rankine formula, the…

A: Cohesion = 0 Angle of internal friction = 32°. To find: passive earth pressure coefficient.

Q: 9, = 10 kPa Fine-grained soil y=17.2 kN/m, S= 0.8. = 27°, s, = 55 kPa 1.5 m

A: The given data is: H1=8 ft H2=(12+D)ft Calculating the coefficient of earth pressure:

Braced cuts

The braced cut is a method of providing lateral support to the soil in foundation trenches, to prevent the trenches from deformation by the caving in of soil and resisting it from moving laterally. During shallow excavation in firm soil, generally, slopes are provided to resist the caving in of soil. During shallow excavation in soft soil and deep excavation, the chances of caving in of soil increase. Hence, it becomes necessary to make a provision to resist the deformation of trenches due to caving in of soil. The braced cut is the method used for such conditions. The excavation using braced cuts is a bit uneconomical as compared to the traditional open-cut excavation method but provides better safety than the cut excavation method.