| 摘要 |
<p>A hydraulic concrete pile cutter includes a blade and a method of cutting reinforced precast concrete piles at grade level. A single blade of suitable hardness limits up to about Rockwell C 56, has a beveled cutting edge extending across most of one edge, bordered by unbeveled side portions, adapted to slide in channels. The single blade is used to shear reinforced precast concrete piles. A double blade arrangement with a fixed blade opposed to a movable blade, both blades having cutting edges formed to fit around the pile, is also taught. The double blades shear the concrete of the pile leaving the reinforcement intact. The movable blade is actuated by hydraulic cylinders, two hydraulic cylinders to provide the required power are preferred, because they have less tendency to jam the blade, during use. An anvil or stop extends across the outer ends of the channels, and is removable. Projecting attachments for concrete breaking and recessed attachments for pile guiding are also shown.</p> |
