ABSTRACT
Case 2: When the Backfill is Sand with Water Table at Great Depth Figure 20.11 gives a case where the backfill is sand with no water table within. The following relationships may be written as:
Pa = yHKA P = 2 qu - YH = 4c - yH p/ = 2qu + yH =4c + yH
1 - yH2K2 A
where
D(2q - yH) - .1 yH2Kh = u 2 A 2Qu
A second degree equation in D can be developed as before
C1D2 + C2D + C3 = 0 where C1 = (2Qu - yH)
H Y = 3' Qu = 2c
An expression for computing maximum bending moment may be.written as
M = P (- + - )_ (2Qu -yHYy; max a Y Yo 2
(20.21)
(20.22)
(20.23)
Figure 20.11 Sheet pile wall embedded in clay with sand backfill.
