High strain dynamic pile testing data is collected the pile section m (sensor locations) Fm (t) and speed of Vm (t) *Z two curves over time, caused by the separation of the two curves is the soil resistance stress waves.
High strain pile testing data collected at the scene of the pile section is M (sensor position) force Fm (t) and speed Vm (t) * Z varies with time of two curves, the two curves separation is generated earth resistance The stress wave.