DriveResult

Soil characterization and capacities from one drive-model run.

Usage

DriveResult(
    elevation,
    depth,
    sigma_v0,
    bpf,
    fines,
    phi,
    n160,
    csr,
    crr15,
    cycles_to_liq,
    felt_arrival,
    felt,
    ru,
    ru_toe,
    liquefied,
    liq_when,
    reason,
    fs_eod,
    fs_ltc,
    target,
    raw_capacity,
    predicted,
    top_phi,
    n_top,
    eod_capacity,
    ltc,
    ltc_shaft,
    toe_eod,
    rms_kips,
    pile,
    options,
    pile_id=None,
)

Per-foot arrays run over the analysis grid, top down, including the unlogged top segment.

Attributes

elevation: ndarray: Elevation of each foot, ft.
depth: ndarray: Depth of each foot below the ground surface, ft.
sigma_v0: ndarray: Static vertical effective stress, ksf.
bpf: ndarray: Blows per foot.
fines: ndarray: Fines content, percent.
phi: ndarray: Friction angle, deg; NaN where the foot was not characterized.
n160: ndarray: Equivalent corrected blow count.
csr: ndarray: Cyclic stress ratio of a hammer blow.
crr15: ndarray: Cyclic resistance ratio at 15 cycles.
cycles_to_liq: ndarray: Blows to liquefaction.
felt_arrival: ndarray: Blows felt before the toe reached the foot.
felt: ndarray: Blows felt by the end of the drive.
ru: ndarray: Pore-pressure ratio of each foot at the end of the drive.
ru_toe: ndarray: Pore-pressure ratio applied to the toe stress when the foot was characterized.
liquefied: ndarray: True where the foot liquefied.
liq_when: ndarray: “before”, “during” or “after” the toe’s arrival, or “” if never.
reason: ndarray: Outcome code of each foot’s characterization.
fs_eod: ndarray: Unit shaft resistance at the end of the drive, ksf.
fs_ltc: ndarray: Unit shaft resistance after pore-pressure dissipation, ksf.
target: ndarray: Capacity target, kips.
raw_capacity: ndarray: Per-foot capacity from the dynamic formula before smoothing, kips; NaN on the top segment.
predicted: ndarray: Modeled capacity at the time of driving, kips.
top_phi: float: Friction angle assigned to the top segment, deg; NaN if there is no top segment.
n_top: int: Number of feet in the top segment.
eod_capacity: float: Modeled capacity at the final foot, kips.
ltc: float: Long-term capacity, kips.
ltc_shaft: float: Long-term shaft resistance, kips.
toe_eod: float: Toe resistance at the end of the drive, kips.
rms_kips: float: Root-mean-square of predicted - target over the logged feet.
pile: Pile: Pile used for the run.
options: ModelOptions: Options used for the run.
pile_id: (str, optional): Identifier of the pile.