shaft.coyle_castello_k()

Coyle and Castello earth pressure coefficient at the ground surface.

Usage

Source

shaft.coyle_castello_k(
    phi,
    width,
)

Parameters

phi: array_like

Friction angle, deg.

width: float

Pile width, ft.

Returns

ndarray

K_t interpolated between the tabulated values at 30, 33 and 36 deg and extended above 36 deg in proportion to nordlund_k_delta at the pile’s displaced volume.

References

Coyle and Castello (1981).