SHEET PILE STRUCTURES. Topic: General Types of Sheet Pile Lateral Pressure Diagram Cantilever Sheet Pile.

Presentasi berjudul: "SHEET PILE STRUCTURES. Topic: General Types of Sheet Pile Lateral Pressure Diagram Cantilever Sheet Pile."— Transcript presentasi:

1 SHEET PILE STRUCTURES

2 Topic: General Types of Sheet Pile Lateral Pressure Diagram Cantilever Sheet Pile

3 CALCULATION STEPS CANTILEVER SHEET PILE - SAND

4 1. Determine the value of K a and K p 2. Calculate p 1 and p 2 with L 1 and L 2 are known 3. Calculate L 3 4. Calculate the resultant of the area ACDE (P) 5. Determine the z (the center of pressure for the area ACDE)

5 6. Calculate p 5 7. Calculate A 1, A 2, A 3, A 4

6 8. Determine L 4 9. Calculate p 4 10. Calculate p 3 11. Calculate L 5 12. Draw the pressure distribution diagram 13. Obtain the theoretical depth ; D = L 3 + L 4 The actual depth of penetration is increased by about 20% - 30% 14. Calculate the maximum bending moment

7 EXAMPLE CANTILEVER SHEET PILE - SAND GWL  d = 15.9 kN/m 3  t = 19.33 kN/m 3  = 32 o c = 0 kPa L 1 = 2 m L 2 = 3 m D Determine the penetration depth (D) and dimension of sheet pile

8 EXAMPLE CANTILEVER SHEET PILE - SAND Step 1 (determine the value of k a and k p ) Step 2 (calculate p 1 and p 2 ) Step 3 (Calculate L 3 ) kPa m

9 Step 4 (calculate P) Step 5 (calculate z) Step 6 (calculate p 5 ) kN/m m kN/m 2

10 Step 7 (calculate A 1 – A 4 )

11 Step 8 (determine L 4 ) Step 9 (calculate p 4 ) Step 10 (calculate p 3 ) L 4  4.8 m kPa

12 Step 11 (Calculate L 5 ) Step 12 Draw the pressure distribution diagram Step 13 (the penetration dept of sheet pile) Theoretical = 0.66 + 4.8 = 5.46 m Actual = 1.3 (L 3 +L 4 ) =7.1 m m

13 EXAMPLE CANTILEVER SHEET PILE - SAND

14 Dimension of Sheet Pile m kN.m