When static sounding a soil depth of penetration of the probe, which is the ratio of sidewall tip resistance and friction resistance is expressed as a percentage.
When a static probe probe sits into a depth of the earth layer, the ratio of its sidewall resistance to the cone tip resistance is expressed as a percentage.
When the static penetration probe penetrates into a certain depth of the soil layer, the ratio of the side wall friction resistance to the cone tip resistance is expressed in percentage.<br>