The load-settlement curves shown in Figure 2 were obtained from a full-scale static load tests on a 240 mm diameter and 12 m long concrete pile driven in a clay soil. The 28 day compression strength of the concrete is 40 MPa and the unit weight is 24 kN/m. The average unit weight of the soil is 17 kN/m and ground water table is at the ground surface 1. Determine the skin resistance of the pile. 2. Determine the toe bearing resistance of the pile. 3. Back calculate the magnitude of B. You may use one central point to back calculate B Load (kN) 200 400 1. 20 Downward load test (May 2003) 40 Upward load test (June 2003) 100L Figure 2 P1le Settlement (mm)
The load-settlement curves shown in Figure 2 were obtained from a full-scale static load tests on a 240 mm diameter and 12 m long concrete pile driven in a clay soil. The 28 day compression strength of the concrete is 40 MPa and the unit weight is 24 kN/m. The average unit weight of the soil is 17 kN/m and ground water table is at the ground surface 1. Determine the skin resistance of the pile. 2. Determine the toe bearing resistance of the pile. 3. Back calculate the magnitude of B. You may use one central point to back calculate B Load (kN) 200 400 1. 20 Downward load test (May 2003) 40 Upward load test (June 2003) 100L Figure 2 P1le Settlement (mm)
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:The load-settlement curves shown in Figure 2 were obtained from a full-scale static load tests
on a 240 mm diameter and 12 m long concrete pile driven in a clay soil. The 28 day
compression strength of the concrete is 40 MPa and the unit weight is 24 kN/m. The average
unit weight of the soil is 17 kN/m and ground water table is at the ground surface
1. Determine the skin resistance of the pile.
2. Determine the toe bearing resistance of the pile.
3. Back calculate the magnitude of B. You may use one central point to back calculate B
Load (kN)
200
400
20
Downward load test
(May 2003)
40
Upward load test
(June 2003)
100L
Figure 2
Pile Settlement (mm)
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