DEVELOPMENT OF ENGINEERING DRILLER OF GY-15 TYPE WITH FULL-HYDRAULIC DYNAMIC HEAD

The engineering driller of GY 15 type with full-hydraulic dynamic head is a new tpye of drilling equipment for foundation pile,develped by our institute based on the market demand and combined with the superiority of developing the driller with full-hydraulic dynamic head by ourselves for many years. This paper introduces briefly the structures, test situations and main technical parameters of this type of driller.