SOIL NAIL STRUCTURE FOR SLOPE REINFORCEMENT WORK AND SOIL-NAILING METHOD FOR SLOPE REINFORCEMENT WORK, IMPROVING CONSTRUCTABILITY AND PRODUCTIVITY

摘要

PURPOSE: A soil nail structure for slope reinforcement work and a soil-nailing method for the slope reinforcement work are provided to improve continuity of a process by using jointly a boring machine in expansion of an anchor blade and to improve productivity of a nail anchor by removing helix machining of the soil nail structure. CONSTITUTION: A nail anchor for slope reinforcement work comprises a nail having a pressure screw surface; a taper body(4) fitted to the nail; and an anchor body having an anchor blade(2) expanding by the taper body. The anchor body is screwed to the pressure screw surface. A soil nail structure for slope reinforcement work comprises an anchor body(12) having a through hole to make expansion of the anchor blade executed according to the advance of taper body by the hitting force of a boring machine; a nail(10) having an insertion projection part(16) piercing and projecting through the anchor body; and a separation-preventing unit combined to the tip of the insertion projection part, to prevent separation of the nail from the anchor body through interference with the anchor body.