Soil boring test the penetration test to yield the value N.

[denichammy]

  Soil boring test enclose a system to discover a small-diameter hole in soil surface and restore samples of the materials. ASTM D1586, Standard Method for Process for Penetration. Soil test and Split-Barrel Sampling of Soils, assign the method used for manufacture of boring and conducting the penetration test to yield the value N. In soil, Soil boring test development the boring using a hollow stem auger (HSA) or flush joint casing (FJC) with the same length variation, as drilling rod is installed along some loose sand formations to prevent the borehole collapse while the other denser sand formations, bentonite stabilizing is applied instead.