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Sheet pile walls

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Material of sheet piles:

Type of sheet piles based on materials:

  1. Steel sheet piles
  2. Concrete sheet piles
  3. Timber sheet piles.

Profile of steel sheet piles

(From USS steel sheet piling design manual)

 Properties of steel sheet piles

Designation

Driving distance

(in)

Weight

(lbs/ft)

Web thickness

(in)

Section modulus

(in3/ft)

Area

(in2/pile)

Moment of Inertia

(in4/ft)

PSX32

16-1/2

32

29/64

2.4

12.94

3.7

PS32

15

32

½

1.9

11.77

2.9

PS28

15

28

3/8

1.9

10.30

2.8

PSA28

16

28

½

2.5

10.98

4.5

PSA23

16

23

3/8

2.4

8.99

4.1

PDA27

16

27

3/8

10.7

10.59

39.8

PMA22

19-5/8

22

3/8

5.4

10.59

13.7

PZ38

18

38

3/8

46.8

16.77

280.8

PZ32

21

32

3/8

38.3

16.47

220.4

PZ27

18

27

3/8

30.2

11.91

184.2

Allowable design stress of sheet piles 

Steel grade

Minimum yield strength, psi

Allowable design stress, psi

ASTM A328

38.5

25

ASTM A572

50

32

ASTM A690

50

32

  Construction of sheet piles:

  Sheet piles are normally driven in three to four sections together and in sequence as shown below:

 

Design of sheet piles:

Type of sheet piles based on method of supported

  1. Cantilever sheet piles
  2. Anchored sheet piles

Design of cantilever sheet pile wall includes two parts:

1.      Design the embed length of sheet pile against rotational failure.

2.      Select the sheet pile section to resist moment and shear:

Commonly assumed failure mode of cantilever and anchored sheet piles are shown below: 

 

 

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