Table 2. Comparison of model piles with...

Table 2.

Comparison of model piles with typical micropiles

Pile section	Slenderness ratio (10 m long pile)	E: GPa	I: m⁴	EI: MN m²
Polystyrene centrifuge piles*	31	2·7	7·2 × 10⁻²†	195
Piles in FE study (Ousta, 1998), D = 200 mm, solid*	200	24·0‡	7·9 × 10⁻⁵	2
Steel tubular pile, D = 250 mm, t = 6 mm	116	210·0	3·4 × 10⁻⁵	7
Steel tubular pile, D = 250 mm, t = 12 mm	119	210·0	6·4 × 10⁻⁵	13

Pile section	Slenderness ratio (10 m long pile)	E: GPa	I: m⁴	EI: MN m²
Polystyrene centrifuge piles*	31	2·7	7·2 × 10⁻²†	195
Piles in FE study (Ousta, 1998), D = 200 mm, solid*	200	24·0‡	7·9 × 10⁻⁵	2
Steel tubular pile, D = 250 mm, t = 6 mm	116	210·0	3·4 × 10⁻⁵	7
Steel tubular pile, D = 250 mm, t = 12 mm	119	210·0	6·4 × 10⁻⁵	13

Presented by the authors.

^†

Estimated from given slenderness ratio (31) and total pile length (213 mm) and given at prototype scale for comparison.

^‡

Typical of unreinforced concrete.

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