| 摘要 |
The assembly comprises a cage 3 having elongate bars 6 encircled by hoops, and stabilisers 10 on its outer perimeter, each stabiliser having an arm 13, 14, a surface for engaging the surface of a pile bore and an actuator 15 for moving the arm. The actuator may be a screw mounted on first and second blocks 16, 21, with first and second ends of the arm pivotably connected to an elongate bar and the second block respectively. Rotation C of the screw may cause movement A of the second block, and movement B of the engaging surface towards a bore wall 8. The actuator may be a spring-like section with the arm connected to a first end. The stabiliser may have a hook on the actuator for connection to a cage hoop. Also claimed are a method of using the assembly and a method of forming a pile. |
