Connector structure

A connector structure for interconnecting elongated pile sections comprising a first connector element for securement to the end of a pile section, a second connector element for securement to a further pile section, one of said connectors having a plate for attachment to one of said sections, an annular flange located on and extending above a surface of said plate to define a connecting inner side wall extending parallel to the longitudinal axis of said pile sections, a flat top surface on said flange, an inner recess area defined by said flange and having a flat bottom wall, a groove mid-way about said inner connecting side wall, the other of said connectors having a further plate for attachment to said other one of said sections;

• a projection portion extending above a surface of said further plate and having a flat top surface, said projection portion being of the same thickness as the height of said annular flange and defining a connecting outer side wall also extending parallel to the longitudinal axis of said pile sections, a groove mid-way about said outer side wall, said projection portion being dimensioned for close fit within said inner recess area with said grooves juxtaposed and said flat top surface of said projection portion in abutment with said recess area bottom wall, said juxtaposed grooves defining an endless locking channel of square cross-section, at least one access passage extending through said flange to join said locking channel tangentially to permit passage and insertion of a locking rod at least in a substantial portion of said locking channel, said rod having a square cross-section for close fit into said locking channel whereby it can be fitted in said channel through said access passage to lock the connectors from separation, said locking rod and said channel having opposed parallel top and bottom surfaces disposed transversely to the longitudinal axis of the pile and parallel side surfaces extending parallel to said longitudinal axis to provide axial load transfer between said groove top and bottom surfaces when a load is applied axially of said pile sections and acting between said opposed parallel faces of said rod in said axial direction.