Asteel pipe pile having a diameter of 0.35 m is driven 15 m into a loose sand with a unit weight of 16.5 kN/m3 and an angle of internal friction of 33°. Compute the design axial downward loading, using the effective stress basic method of statical analysis with a factor of safety of 2.75.

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: Using the data in Figure 2, calculate the vertical stress induced by the loading of the foundations…

A: Answer  To calculate the vertical stress induced by the loading of the foundations at the corner of…

Q: A cantilever sheet pile wall supports a horizontal backfill having a unit weight of 16 kN/m^3, angle…

A: Unit weight of soil (y) = 16 KN/m3 Friction angle ( Φ ) = 30° Back fill height (H) = 4m Coefficient…

Q: The flow net around a sheet pile wall is shown in the sketch. The properties of the soil are…

A:

Q: etermine the theoretical embedment depth for the given free support anchored sheet pile wall placed…

A: Angle of Internal friction ,  Cohesion ,  Natural Unit weight ,

Q: A driven pipe pile with an outside diameter of 450mm and a wall thickness of 7mm, 18 m long, is…

A:

Q: Ox (psi) 2000 To (Cohesion) (psi) 1000 50 Oy (psi) 1800 (Internal friction angle), º Po (psi) 1000…

A: Given; = 2000 psi σy = 1800 psi Po = 1000 psi

Q: It is proposed to drive a cantilever sheet pile to a depth of h + d into dry granular soil to…

A: To plot d/h against the friction angle, we need to use soil mechanics principles to calculate the…

Q: Que. Find the depth of embedment of the cantilever sheet pile for a 6 m deep excavation in sandy…

A:

Q: A 400 mm square prestressed concrete pile is to be driven 19 m into the soil profile shown in Figure…

A: 400mm x 400mm square pileL = 19 mFS = 2.5

Q: A circular pile with a diameter of 400 mm was driven to a depth of 12 meters into the normally…

A:

Q: Figure below shows the cross-section of an excavation which is to be made alongside a river. Write…

A: To find -Depth to which water in the trench can be reduced before instability occurs.

Q: Figure 1 shows a cross-section through an excavation in a deep sand deposit. The site engineer…

A:

Q: A large sign is to be supported on two steel poles, each of which will be supported by a 500 mm…

A: GIVEN- D=500mmh=8mV=5.4 KNF=3.0

Q: A vertical sheet piled wall is shown in Fig. below, the properties of the soil both behind and front…

A:

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

A:

Q: A large sign is to be supported on two steel poles, each of the poles which will be supported by a…

A:

Q: A concrete pile with a rectangular shape with a base of 40 cm is built in saturated sand. Find the…

A: In order to calculate tension bearing capacity of the given pile using  β-method we have T = fs*Ap +…

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

A:

Q: D 7.0m. 2.0m Yt = 16.5 kN/m³ $' = 30° Loose sand fill: Yt = 19.5 kN/m3 $' = 30° Dense sand: Yt = 21…

A: The surcharge is equal to 10 KPa.Unit weight of water = 10 KN/m³for loose sand = 0.3 and for dense…

Q: A 10.5m deep excavation in clay is to be retained with an 18m long sheet pile wall. The excavation…

A: H=10.5 msheet pile (H) = 18 mTo find- Apparent pressure diagram

Q: A large sign is to be supported on two steel poles, each of the poles which will be supported by a…

A: GIVEN- D=500mmh=8mV=5.4 KNF=3.0

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.