| 摘要 |
This disclosure relates to a cribbing plate particularly constructed for use in the shoring of walls of trenches. The cribbing plate is of a box construction and includes a rectangular frame formed of shaped metal members which has positioned therein at vertical spaced intervals parallel horizontal reinforcing pieces, and there further being vertical pipe members passing through the horizontal reinforcing members and being welded thereto and to the rectangular frame to reinforce the cribbing plate in a manner to facilitate the driving and pulling thereof. The horizontal reinforcing members are of a C-shaped or more specifically of a flanged channel shape with the flanges being welded to the pipes in a box-like manner to rigidify the cribbing plate. |
