A driven pipe pile with an outside diameter of 450mm and a wall thickness of 7mm, 18 m long, is proposed to support columns of a large multi-storey apartment building. The water table is located at a depth of 5m below the ground surface. The soil properties are given in Table below. Depth (m) Soil Type 0-10m 10+ Silty Clay Clay Undrained Friction Cohesion angle (kPa) 30 100 0 0 Saturated Unit Weight kN/m³ 18.0 19.6 Bulk Unit weight kN/m³ 17.2 17 Using the applicable method (a or 3 method) a) Calculate the end bearing capacity b) Calculate the skin resistance c) Estimate the net allowable pile capacity (FS=2) d) Based on your calculations state whether this pile is a 'friction pile' or an 'end bearing pile'.

A driven pipe pile with an outside diameter of 450mm and a wall thickness of 7mm, 18 m long, is proposed to support columns of a large multi-storey apartment building. The water table is located at a depth of 5m below the ground surface. The soil properties are given in Table below. Depth (m) Soil Type 0-10m 10+ Silty Clay Clay Undrained Friction Cohesion angle (kPa) 30 100 0 0 Saturated Unit Weight kN/m³ 18.0 19.6 Bulk Unit weight kN/m³ 17.2 17 Using the applicable method (a or 3 method) a) Calculate the end bearing capacity b) Calculate the skin resistance c) Estimate the net allowable pile capacity (FS=2) d) Based on your calculations state whether this pile is a 'friction pile' or an 'end bearing pile'.

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

See similar textbooks

Related questions

Q: 11.26 Figure P11.26 shows a group pile in clay. Determine the consolidation settlement of the group.…

Q: A flownet of a coffer dam foundation has 6 flow channels and 18 equipotential drops. The head of…

Q: Sheet pile k= 4 x 10-4 cm/sec Impermeable layer Figure 8.23 8.2 Draw a flow net for the single row…

A: Given:- The value of k = 4×10-4 cm/sec The value of H1 = 3 m The value of H2 = 0.5 m The value of D…

Q: A 1.5 m thick strata of sand has a dry unitweight of 15 kN/m3. A contractor passes a vibratory…

A: To determine: The new thickness.

Q: As part of a construction project, a 11 m thick layer of clay is to be loaded with a temporary 5 m…

Q: 2.10 Refer to Figure P 2.10 and use these values: H = 7 m, • H, = 1.75 m, D =7 m D = 3.5 m Draw a…

Q: Question-3: A soil profile is shown in Figure 3.1. If a uniformly distri kPa, is applied at the…

A: Given, Compression index Cc=0.27 Recompression index Cr=0.045 Uniformly distributed load∆σ=100…

Q: A rectangular footing with circular tank is to be constructed on the soil profile shown in figure.…

A: ratio 1 : 2 = 1 vertical : 2 horizontal So, n = 2

Q: The following figure shows a sheet pile wall for a temporary cut at a construction site. The soil…

A: A. Construct the flow net: The flow net is High head to low head,

Q: A deposit of silty clay is being considered for use in constructing a containment dyke. Vane shear…

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

Q: Use unit weight of water = 10kN/m3 in the following questions. A soil profile is shown in Figure…

Q: Circular precast concrete piles with 60 cm in diameter will be driven to a tip penetration of 30 m.…

A: Circular precast concrete piles with 60 cm in diameter will be driven to a tip penetration of 30 m.…

Q: A cellular cofferdam of 8.4 m radius and 15 m height is proposed for flood protection. Properties of…

A: The factor of Safety: The factor of safety is the ratio of the yield stress to the working stress of…

Q: A storage tank of diameter of 30 m and gross (total)weight 105 kN is to be constructed on site shown…

A: Assume unit wt of the water γw=9.81 KN/m3Unit wt of sand γs =G+Se1+eγw=2.8+0×e1+0.55×9.81=17.72…

Q: In a consolidation test, when the load is changed from 50 kN/m² to 100 kN/m², then the void ratio…

A: Given data- A consolidation test- Load is changed from 50 kN/m2 to 100 kN/m2, Void ratio changes…

Q: Q3. A flow net for flow around a single row of sheet piles in a permeable soil layer is shown in…

Concept explainers

Principles of Seepage

In hydrology, when water flows down in a pore or crack of unsaturated soil due to gravity, the deep layer of soil is called seepage. It is the slow movement of water in the soil layer. Seepage is mainly found near hydraulic structures and is responsible for the stability of earthen-type hydraulic structures.

Question

A driven pipe pile with an outside diameter of 450mm and a wall thickness of 7mm, 18 m long, is proposed to
support columns of a large multi-storey apartment building.
The water table is located at a depth of 5m below the ground surface.
The soil properties are given in Table below.
Depth (m) Soil Type
0-10m
10+
Silty Clay
Clay
Undrained Friction
Cohesion
angle
(kPa)
30
100
0
0
Saturated
Unit Weight
kN/m³
18.0
19.6
Bulk Unit
weight
kN/m³
17.2
17
Using the applicable method (a or 3 method)
a) Calculate the end bearing capacity
b) Calculate the skin resistance
c) Estimate the net allowable pile capacity (FS=2)
d) Based on your calculations state whether this pile is a 'friction pile' or an 'end bearing pile'.

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: Given Data

VIEW

Step 2: End bearing capacity (Qp)

VIEW

Step 3: Skin Resistance (Qs)

VIEW

Step 4: Skin resistance table

VIEW

Step 5: Net allowable pile capacity & type of pile

VIEW

Solution

VIEW

Step by step

Solved in 6 steps with 19 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

Q-1) A structure weighs (47000 kN including foundation) is to be constructed into the soil profile shown in Figure (1). Calculate: A. The final consolidation settlements below foundation center and edge. B. The time required for (20 mm) settlement to occur below foundation center. Fig.1 3 m 7m 2 m Sand Y=17 Clay 20 m diameter Y = 19 kN/m³ Y=20 kN/m³ c, = 0.1 m²/yr Cc = 0.33 eo=0.8 Impervious Rock V.T
On the profile shown in the figure, two large embankments will be built at an interval of 6 months. The first embankment will be 1m high and the second 2m high. Both will be built with local soil and will reach a specific weight after compaction of 18.1kN/m³. Estimate the primary consolidation settlement considering the coefficient of compressibility av=1x104 m²/kN. €=0.9 H=7m argila e-0.9 7m
The soil profile shown below is subjected to a uniformly distributed load (UDL) on ground surface of 600 kN/m². The underground soil consist of two normally consolidated clay (N.C.C.) layers, and between them one sand layer with properties as shown on the figure. If the ground water table is at the ground surface, and the (AP) assumed to be the same at both clay layers, Calculate the total consolidation settlement Sc from the two clay layer? assume compression index, Cc=0.007(LL-10). 4.0 m 3.0 m 2.0 m Clay Sand Clay AP=600 kN/m² W, 35%. LL-40%. G.-2.65 Ys at = 18 kN/m³ W, 40, LL=45%, G,-2.78 ▼ G.W.T
Problem (3) The flow net for water seepage is shown in the figure below, where the permeable soil layer has a saturated unit weight: %a-17.7 kN/m°. Calculate: a) Seepage force per unit volume Sheet pile H = 3 m Heave zone На 0.5 m Ysat = 17.7 kN/m3 rmeable layer Figure 6.9 Flow net for seepage of water around sheet piles driven into permeable layer
Known: B = 1m, L = 2m, Q = 100kN Estimate the consolidation settlement and How long will it take to reach 90% consolidation?
A soil profile is shown in Figure 7.19. subsidence caused by primary consolidation of a 16 ft thick clay layer caused by an embankment of 600 kg/m² laid above the soil surface. The clay is normally consolidated (normally consolidated). 23 ft thick layer of sand located above the clay layer has the following data: Gs = 2.65 and e = 0.7.
Estimate the total consolidation settlement (primary & secondary) after 2 years and 3 months after the completion of primary consolidation settlement of an over consolidated clay layer under the bridge pier as shown below. The pier's dimensions are (2 m x 3 m). Use Yw= 10 kN/m³ and note that the time for completion the primary consolidation is 3 years. | Qo= 960 kN G.W.L 1m Sand Ya=16.5 kN/m 2 m Ysat = 18 kN/m³ Silty Sand Ya=17.5 kN/m 3 m Ysat = 18.5 kN/m3 Clay Ya=20 kN/m , Ysat = 21 kN/m3 e, = 0.6 , Ae=0.04 , o= 78.3 kN/m2 4 m Cc= 0.4, Cs= 0.1, Ca= 0.02
Q1 The two-way drainage clay layer of 6m thick, how long will it take for 75% consolidation to be over in the field? Given: cy= 0.24 cm²/min.
I need the answer as soon as possible
11.10 A concrete pile 0.406 m x 0.406 m in cross section is shown in Figure P11.10. Calculate the ultimate skin friction resistance by using the a. a method b. A method c. ẞ method Use =20° for all clays, which are normally consolidated. 6.1 m 12.2 m 0.406 m Figure P11.10 Groundwater table Ysat Silty clay 18.55 kN/m³ Cu = 35 kN/m² Silty clay Ysat = 19.24 kN/m³ Cu = 75 kN/m²