PBD PBD PBD PBD complex equipment installed beforehand boring structure with vibratory-hammer/breaker and system/method thereof

摘要

The present invention relates to a PBD composite device equipped with a line perforation structure on one side of a leader of a conventional PBD equipment provided with a PBD structure, thereby forming a line perforation first in an underground composite layer in which a sandstone layer or a hard sand layer is mixed, The line perforation structure is formed by the striking rod, the striking means and the impact suppressing drawing wire, and the striking rod is formed by the striking rod and the striking rod, and the PBD drainage type is formed by the ordinary PBD structure, And the drawing of the striking rod is made by the upward force of the striking wire, the line perforation being formed together with the drawing of the striking rod, and the diameter of the striking rod and the mandrel of the PBD structure By forming the diameters to be almost the same, not only the spacing space is minimized but also the verticality is improved, and the formation of the line perforations is prevented by the sharp tip of the hitting rod It is formed by pushing the stones of the continuous stones into the left and right moving spaces, so that the stones do not fall into the soft layer below, so that the drainage material is not cut off due to the stones that are lost due to the type of the PBD drainage material and minimizes the frictional force by the vibrohammer And it is a useful invention which enables the PBD drainage type to be made efficiently in the underground multiple layer by one PBD combined equipment.