Patent ID: 8857131

Claim:
A method of erecting a pylon of a wind power installation, comprising: providing a foundation; placing a plurality of height adjusting units on the foundation, the height adjusting units including an upper element having a flat upper surface and lower element having a flat lower surface, the upper element being coupled to the lower element, wherein placing the plurality of height adjusting units on the foundation includes placing the flat lower surface of the lower element on the foundation, the height adjusting units being made substantially from a plastic material; placing a load distribution ring on the flat upper surface of the upper element of the plurality of height adjusting units, the flat upper surface of the upper element being located between the load distribution ring and an upper most surface of the lower element, wherein the height adjusting units are configured to jointly bear the weight of the load distribution ring, and are configured to yield under a selected load that is substantially greater than a weight of the load distribution ring; straightening and leveling the load distribution ring by adjustment of the height adjusting units; after the straightening and leveling of the load distribution ring, filling a gap between the foundation and the load distribution ring with a grouting material; placing a pylon segment of the pylon on the load distribution ring after the grouting material has reached a predetermined strength; placing a plurality of pylon segments on the pylon segment placed on the load distribution ring; and crushing the height adjusting units to reduce a height of the height adjusting units under a combined weight of the plurality of pylon segments, causing the weight of the pylon segments to be carried by the grouting material and transferred to the foundation substantially by the grouting material.