Chance Technical Design Manual

REPORTED CORRELATIONS BETWEEN SPT N 60 VALUE AND UNIT SIDE RESISTANCE [LUTENEGGER (2011)], TABLE 5-11 PILE TYPE SOIL β α REFERENCE

Granular

0

2.0

Meyerhof (1976)

Miscellaneous soils (f s < 170 kPa)

10

3.3

Decourt (1982)

Cohesive

0

10

Shioi & Fukui (1982)

Driven displacement

Cohesive Cohesionless

0 0

3 1.8

Bazaraa & Kurkur (1986)

Sandy Clayey

29 34

2.0 4.0

Kanai & Yubuuchi (1989)

Miscellaneous

0

1.9

Robert (1997)

Granular

0

1.0

Meyerhof (1976)

Granular

55

5.8

Fujita et al. (1977)

Cohesionless

0

3.3

Wright & Reese (1979)

Cohesive (f s < 170 kpa)

10

3.3

Decourt (1982)

Cohesive

0

5.0

Shioi & Fukui (1982)

Cohesive Cohesionless

0 0

1.8 0.6

Bazaraa & Kurkur (1986)

Residual soil & weathered rock

0

2.0

Broms et al. (1988)

Clay Sand

0 0

1.3 0.3 3.9 4.9

Koike et al. (1988)

Sandy soil Cohesive

35 24

Kanai & Yubuuchi (1989)

Bored

Residual soil

0

4.5

Winter et al. (1989)

Gravel Sand Silt Clay

0 0 0 0

6.0 4.0 2.5 1.0

Hirayama (1990)

Residual soils

0

2.0

Chang & Broms (1991)

Clayey soil Sandy soil

0 0

10.0 3.0 1.18 0.65

Matsui (1993)

17.3 18.2

Miscellaneous

Vrymoed (1994)

Miscellaneous

0

1.9

Robert (1997)

DESIGN METHODOLOGY

Sand

0

5.05

Kuwabara & Tanaka (1998)

4

Wada (2003)

Weathered rock

0

Cohesionless Cohesive Cohesionless (F s < 200 kPa) Cohesive (F s < 150 kPa)

0 0

5.0 10.0

Shoi & Fukui (1982)

30

2.0

Cast-in-place

Yamashita et al. (1987)

0

5.0

Note: f s = b + a N 60 (f s in units of kPa)

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