Grout template for wind turbine foundations
View Patent ↗A method of forming a grout trough for a wind turbine foundation replaces the heavy and single piece template with a plurality of arc-shaped sections which are light weight and connected together to form the grout trough. The individual sections include mechanisms which enable the sections to be removed from the cured concrete by rotation of nuts on the anchor bolts which either pushes or pulls the template section away from the contact with the cured concrete. An embodiment of an individual section has a lifting bale which may be used to pick up an entire bolt package of up to twenty bolts.
1. A template section which, in combination with adjacent template sections, forms a trough in a cement substrate, the template section comprising:
a unitary body comprising:
first and second opposing ends;
a top surface extending from the first end to the second end;
a bottom surface extending from the first end to the second end in opposite facing relation with the top surface, with a space defined therebetween; and
a lifting bale fixedly attached to the template section, the lifting bale comprising a frame defining at least one opening therein for grasping the lifting bale, the lifting bale comprising lifting members comprising apertures for receiving the ends of a plurality of anchor bolts,
wherein the unitary body further comprises at least two adjacent openings in the top surface thereof, and at least two adjacent openings in the bottom surface thereof, the openings in the top surface aligned with the openings in the bottom surface, the openings in the top surface and the bottom surface sized and shaped to receive an end of a wind turbine foundation anchor bolt therein, and further wherein when in operative position in a cement substrate and having a turbine foundation anchor bolt received through one of said openings in the top surface and one of said openings in the bottom surface, the unitary body is oriented such that the turbine foundation anchor bolt is maintained in a vertical position and a trough is formed in the cement substrate by the bottom surface of the unitary body.