Pile Design and Construction Practice, Fifth edition

Deflection coefficient By

Moment coefficient Bm Shear coefficient Bv

Depth coefficient

Z

Depth coefficient

Z

Slope coefficient Bs

Depth coefficient

Z

Depth coefficient

Z

Depth coefficient

Z

• 0 2.0 –1.0

3

3

3

10

10

4

5 4

4

4

10

10

5

1.0

2.0

3.0

4.0

5.0

0

1.0

2.0

3.0

4.0

5.0

• 2.0


• 3.0 –2.0

Soil resistance coefficient Bp

• 1.0 +1.0
  3

3

4

4

+2.00

5 & 10

5

0 +0.2 +0.4 +0.6 +0.8 +1.00 –0.8 –0.6 –0.4 –0.2^0 +0.2

1.0

2.0

3.0

4.0

5.0

0

1.0

2.0

3.0

4.0

5.0

0

1.0

2.0

3.0

4.0

5.0

+1.0 +2.0 +3.0 +4.0 –3.5 –3.0 –2.5 –2.0

4

10

3

5

10

(^0) – 1.5 –1.0 –0.5 0
(a) (b)
(c)
(e)
(d)
4, 5 & 10
Mt
x x
Z (^) max
2
Z (^) max
2
Z (^) max
2
Z (^) max
2
Z (^) max
2
yB
Mt VB
MB
Mt
x
M 1
PB
x
x
SB
Mt
10
Figure 6.27Coefficients for piles with moment at free head in soil with linearly increasing modulus
(after Reese and Matlock(6.14)) (a) Coefficients for deflection (b) Coefficients for slope
(c) Coefficients for bending moment (d) Coefficients for shearing force (e) Coefficients
for soil resistance.