Table 1. Design parameters for new...

Table 1.

Design parameters for new foundations in non-cohesive soils (modified from NG TS 3.4.15 (NG, 2018) and BS 8004:2015 (BSI, 2015))

Parameter	SPT counts for non-cohesive materials, n
	n < 10	10 < n < 20		n > 20
	n < 10	Dry	Saturated	Dry	Saturated
Unit weight: kN/m³	N/A	15–17.5	17.5–20	16–20	18.5–22.5
Frustum angle: degrees	N/A	15	15	25	25

Parameter	SPT counts for non-cohesive materials, n
	n < 10	10 < n < 20		n > 20
	n < 10	Dry	Saturated	Dry	Saturated
Unit weight: kN/m³	N/A	15–17.5	17.5–20	16–20	18.5–22.5
Frustum angle: degrees	N/A	15	15	25	25