Soil foundations - Geotechnical Investigation and Design Tables - page 282

Table 21.29 Bending moments for prestressed concrete piles in clays (From graphs in Barker et al.,
1991).

Pile size Bending moment (kNm) for undrained strength (kPa) and load (kN)

C u

=

70 kPa (Stiff) C u

=

140 kPa (Very stiff) C u

=

275 kPa (Hard)

50 kN 100 kN 150 kN 50 kN 100 kN 150 kN 50 kN 100 kN 150 kN

250 * 250 mm 50 kNm 125 225 25 75 150 25 50 100

450 * 450 mm 75 kNm 175 275 75 125 200 50 100 175