| 摘要 |
<p>A plurality of jacking tools (5), e.g. piston-and-cylinder devices, are attached to a cylindrical support (1) adapted for insertion into a first structure, e.g. a pile guide (16, 11) (Fig. 2, not shown), attached to one corner of a template structure (not shown), and arranged to jack up this structure relative to a second structure therewithin, e.g. a pile (10), (Fig. 2, not shown). The upper ends of the jacking tools are mounted on the support by cam means, e.g. an angled slot (6), whereby upon extension of the tools, the upper end of each moves outwardly and upwardly to engage a shoulder (19) formed inside the first structure. <IMAGE></p> |
