本规程涵盖了土工地下勘探中使用螺旋钻的设备和程序。本程序适用于允许螺旋钻钻孔以获得代表性或现场样本的土壤，以及不需要有关套管或驱动管阻力的信息的土壤。

This practice covers equipment and procedures for the use of earth augers in geotechnical subsurface explorations.This procedure is applicable in soils that permit auger drilling to obtain representative orin situsamples and when information concerning resistance to driving casing or drive pipe is not necessary.