During geological investigation on a site, it was observed that subsoil contains 7.5 m depth of clay followed by some other incompetent layers. The consultant decided to design a friction pile group which should be economical and able to carry the anticipated load of 1.5 x 106 N excluding the weight of pile cap. Design and draw the plan of the most suitable friction pile group considering the following parameters: Cohesion intercept of clayey layer = 0.030 N/ mm2 Factor of safety against shear failure = 2.25 Weight of pile cap = 110000N Pile diameter = 300 mm

Q: What is the Total overburden pressure σo  ?

A: overburden pressure: It is defined as stress which includes the pressure coming from the soil, water…

Q: H= Co settlement occurred in the first of 5 minutes, for the same consolidation of drainage, how…

A: H = 2.4 cm or 0.024 mt50 = 5 min

Q: Describe in as much detail as you can on how rock mechanical properties are measured (experimental…

A: Rock mechanical properties -  Elastic modulus, Poisson's ratio, and rock strength are the most…

Q: The coefficient of permeability of soil around a sheet pile is 10-5 m/s. The flow net of this sheet…

A: Given: The coefficient of permeability is 10-6 m/sec. The number of flow lines is 6. The number of…

Q: A square footing (2x2) m at a depth Im from the surface, carrying a load of 4000 kN and resting on…

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

Q: What is the total primary consolidation settlement? What is the settlement at 10 years? How much…

A: Answer Calculation of Total Primary Consolidation Settlement We know that the  Primary consolidation…

Q: 1,688  cu.m. (in place at natural density) of dense clay (35 percent swell) needs to be hauled away,…

A: Dense clay volume = 1688cu.m Swelling 35%  Loose volume ?

Q: Answer the questions below in detail. 1. What is block failure in a group of piles? 2. Describe 3…

A: The group of piles has the large value of the bearing capacity, small value of the settlement and…

Q: Following is the variation of Ngo with depth in a granular soil deposit. A concrete pile 9 m long…

A: Granular soil is generally gravel or silt and also coarse-grained soil with less clay content. It…

Q: A concerete pile 15.24m long having cross section 406 mmx406mm...saturated clay layer 19.02kn..…

A: Given length of pile L=15.24 mcross section of the pile A=B×B=0.406×0.406=0.164836 mm2cohession of…

Q: 1. Given the profile below, determine the time it will take for 70% primary consolidation to take…

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Q: Q4: For the flownet shown in fig. below soil has k= 4 x107 ft/s and the saturated density is 110.4…

A: Coefficient of permeability, Saturated density, To find:            (a) Quantity of seepage…

Q: (c) Given the end area of cut and fill of soil as in Table Q4(c). If the material bulks after…

A: Data Given: Bulks after excavation = 10% Shrink = 12% Chainage distance = 100m Asked: Draw Mass…

Q: The hydraulic conductivity, k of the clay for the loading range is 2.0 x 10^-4 ft^2/day. a) Find the…

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Q: assume all structures are composed of frame elements (beams and co bending, and axial force may be…

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Q: A MRT railway construction will be passing through the Kajang river. In order to prevent the  water…

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Q: Q6): A layer of 3-m thickness (double drainage) of saturated clay with the following data: Gs=2.7,…

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Q: A square footing (2x2) m at a depth 1m from the surface, carrying a load of 4000 kN and resting on…

A: first calculate the effective stress σvσv=(18×2)+(19-9.81)(4)+(20-9.81)(5)σv=123.71 calculate…

Q: It is desired to calculate the consolidation settlement of the 6m thick layer shown in the below…

A: The consolidation settling of the 6m thick layer depicted in the accompanying figure will be…

Q: 1.5m thick clay layer commences at a depth of approximately 2.5m below the ground surface and it is…

A: Given: Thickness of clay layer =1.5mCoefficient of consolidation = 4mm2/minNote that the depth of…

Q: 9.5 Following is the variation of Ngo with depth in a granular soil deposit. A concrete pile 9 m…

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Q: Q3 The system shown in figure find the following: a-flow rate per meter length of sheet pile ,if k=…

A: K=1x10-4 m/sec, L=1.5 m, Void ratio(e)=0.57, Specific gravity(G)=2.68.

Q: A structure is to be supported on a 15-m square mat foundation. The average contact pressure is 100…

A: Compressive stress is the force that deforms the material in a way that reduces the volume of the…

Q: Examples of the different loading types: i. Linearly increasing vertical loading on a strip ii.…

A: in the above question, two different types of loading has been asked which is explained below

Q: Given S1 = 0.4, SDS = 0.60, SD1 = 0.40, and Risk Category II, determine the seismic design category

A: Given,  S1 = 0.4 SDS = 0.60 SD1 = 0.40 Risk Category II,

Q: For the one-dimensional consolidation test result shown .in Figure below, determine my

A: The flow of fluid includes movement of an unbalanced fluid. As long as unequalled forces are in…

Q: A soil profile is shown in figure below. A uniformly distributed load, q=200 kPa, is applied at the…

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Q: Example 5.15 A sheet pile wall drove into having silty permeability m/sec. find the quantity of soil…

A: Escapism of gas or liquid through a porous medium at slower rate is termed as seepage. The pressure…

Q: 1. Static force classified according to action into: and ----- ---

A: 2. Physical properties of rocks are controlled by chemical composition, crystal orientation,…

Q: There is a guyed tower stack as shown. The weight of the guyed tower stack is 66,723 N. It is…

A: The seismic source is equipment that generates controlled seismic energy that can be used to perform…

Q: 4. For the system shown in the figure below: Datum 5.0 m 7.0 m 5.0 m a) Flow rate per meter length…

A: Given data in question  Flownet Head difference  Void ratio Specific gravity  To find out  Discharge…

Q: assume all are composed élements (beams and columns), internal shear, bending, and axial force may…

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Q: A 20 m long bored concrete pile having a diameter of 375 mm is load tested, and the data are given…

A: According to given data 20m long bored concrete pile  pile dia 375 mm

Q: 1. The figure below shows the flow net for seepage of water around a single row of sheet piles…

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Q: Problem 4. Plot the changes of total stress, pore water pressure, and effective stress vs time for a…

A: Analyzing Stress Changes in Undrained and Drained ConditionsUnderstanding the TermsTotal stress: The…

Q: The embankment shown is to be constructed very rapidly at the surface of the profile as shown in…

A: Answer (a) Calculation of Consolidation settlement We know that Consolidation is a process of volume…

Q: Sand falls into a conical pile at the rate of 10 cu. ft. per min. The radius of the base of the pile…

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Q: Q4: For the soil profile and loading condition shown in Figure (4). Find: a) Final consolidation…

A: Load, P = 2000 kN Coefficient of consolidation, Cv = 0.4 m2/yr Footing width, B = 2 m

Q: Calculate the quantity of seepage from upstream to downstream Calculate the uplift force and its…

A: Flow net represents the flow of water underneath the soil i.e Seepage in a graphical representation.…

Q: 8.1m Sheet pile 1.5 m 9.0 m Heave zone Impervious stratum The porewater pressure at point A (in…

A:

Pricing Excavation and Backfill

Backfill, in construction, is the activity of returning the soil and gravel that are removed during building construction or using them again to toughen and support the foundation of the building or any other structural component.