| 摘要 |
The strut for pressing of foot heel part of a testing building foundation into the foundation ground by strutting against its body or other massive support consists of dismountably connected pillar elements and centralizers. The goal of the design is to create a strut that can be assembled and randomly extended, maximally utilizes a longitudinal through hole and that is secured against bending stress. This goal is achieved by the fact that the centralizers have a rotational shape, are concentrically attached to the dismountably connected pillar elements and their outer diameter is up to twice larger than the outer diameter of the columnar segments, which can be face-connected by means of internal thread gauges or directly by collar centralizers. In the first case, one may use removable ring centralizers or smooth disc centralizers or reinforced disc centralizers. The design can be used in the field of building machines.<IMAGE>
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