Wave Field & Monitor Synthesis · Ripple

The pattern

Every charge is a source. Geometry and delay decide where the wave fronts meet.

Rows count

Holes per row count

Burden m

Spacing m

Pattern

Face bearing ° from grid N The direction the free face looks. Rows are laid back from it.

Hole-to-hole delay ms

Row-to-row delay ms

Charge per hole kg

Hole diameter mm

Bench height m

Stemming m

Wave field

Plan view, grid north up. Click anywhere in the field to stand a monitor there.

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Speed

Extent

Gain 0 dB

Wave fronts Holes Radius rings Range-normalised peak Free face

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Sweep detail

Sweep —

Synthesised monitor traces

Three components at the receptor, built by superposing every charge's arrival.

Firing-time analysis

What the sequence itself reinforces, before any ground is involved.

Window ms

Place a pair

same radius, two bearings

Radius m

Bearing A ° from grid N

Bearing B ° from grid N

Bearings are measured from the pattern centroid, grid north = 0°, clockwise. Two monitors on the same radius are the whole point of this tool: if their numbers differ, distance was never the only variable.

Comparison

no monitors

Inter-detonation intervals

Impulse-train spectrum

what the timing reinforces

Charge per time window

Ground

velocities and site law

Host rock optional Indicative literature ranges only. A seismic survey or a first-arrival pick from your own records beats every entry in this list.

Weathering

P velocity c_p m/s Sets ring spacing and arrival order. Hard rock 4000–6000; weathered 1500–3000.

S velocity c_s m/s Slower, so the S front trails. Typically 0.5–0.6 of c_p.

Dominant frequency f_P Hz Wavelength λ = c_p/f_P. Fringe spacing in the field is half of that.

S frequency f_S Hz

S:P amplitude ratio

Wavelet crests count Attenuation of the wavelet envelope: α = 3f/crests. Fewer crests, faster decay.

K — site-law intercept

B — site-law slope

Charge exponent

Near-source cut-off m Distances are floored here. Inside a few charge diameters the point-source model has no meaning.

Include a Love surface packet in the monitor traces