Compact ground boring device for diagonosis of under ground facilities and method for constructing ground rod and for repairing underground laying facility

摘要

The present invention relates to a portable earth and sand drilling device, a method for checking and repairing an underground buried facility using the same, and a method for safety grounding. Unlike the method used and the method of driving with a hammer, it has the advantage of directly excavating only the necessary parts, and it has the characteristic that it is possible to easily check the condition of the buried material. In addition, the tip of the probe rod is processed into a soft, conical curve that is not sharp, so it has the characteristic of preventing damage such as imprints and scratches on existing buried cables. Nevertheless, in order to prevent accidental damage to underground cables or other piping at the tip of the probe rod, an NDT sensor is installed, and a warning sounds when there are conductors such as communication cables and power cables near the tip of the gulch head. have. In addition, even when laying ground rods that are buried as part of electrical safety (grounding safety) that must be secured when laying underground for communication cables and power cables, only the earth and sand of the size that the grounding rods will be placed in in advance should be safely excavated at the location where the grounding rods will be buried. As a method of burial, there is an effect that the grounding can be safely performed without damaging or hitting the surrounding buried objects.