Method of producing a tower foundation and tower adapter

Abstract

A method for producing a tower foundation is provided The method includes providing a tower adapter having a cylindrical portion extending in a longitudinal direction of the adapter and a first lateral portion extending perpendicularly to the cylindrical portion at a first end thereof, and having a plurality of first through-holes, wherein the ratio of a maximum longitudinal extension and a maximum lateral extension of the adapter is smaller than or equal to 1 and providing an anchor and anchor bolts. The method also includes forming a foundation including the anchor and the anchor bolts, wherein the anchor bolts extend from the anchor to an upper surface of the foundation and protrude from the upper surface, and placing the adapter on the anchor bolts so that the anchor bolts extend through and protrude from the first through holes and a space is provided between an upper surface of the foundation and a lower surface of the adapter.

1 . A method for producing a tower foundation, comprising the steps of:
 (a) providing a tower adapter having a cylindrical portion extending in a longitudinal direction of the adapter and a first lateral portion extending perpendicularly to the cylindrical portion at a first end thereof, and having a plurality of first through-holes, wherein the ratio of a maximum longitudinal extension and a maximum lateral extension of the adapter is smaller than or equal to 1,   (b) providing an anchor and anchor bolts,   (c) forming a foundation including the anchor and the anchor bolts, wherein the anchor bolts extend from the anchor to an upper surface of the foundation and protrude from the upper surface, and   (d) placing the adapter on the anchor bolts so that the anchor bolts extend through and protrude from the first through holes and a space is provided between an upper surface of the foundation and a lower surface of the adapter.   
     
     
         2 . The method according to  claim 1 , wherein step (d) is accomplished prior to step (c), and wherein the foundation is formed with an upper surface being spaced from a lower surface of the adapter. 
     
     
         3 . The method according to  claim 1 , wherein the adapter is fixed by fastening nuts to the anchor bolts protruding from the first through-holes. 
     
     
         4 . The method according to  claim 1 , wherein tubes for accepting anchor bolts are provided, the tubes being attached to the anchor, and wherein the foundation is formed so that the anchor bolts can be exchangeably fixed to the anchor. 
     
     
         5 . The method according to  claim 4 , wherein the anchor comprises threaded blind holes, and wherein the anchor bolts are inserted into the tubes and screwedly fixed to the anchor. 
     
     
         6 . The method according to  claim 4 , wherein the anchor comprises through-holes adapted for inserting anchor bolts, and wherein the foundation is formed with a basement providing an access to the through-holes of the anchor. 
     
     
         7 . The method according to  claim 1  further comprising:
 (e) pouring grout to form a grout joint in the space provided between the upper surface of the foundation and the lower surface of the adapter, and 
 (f) curing the grout joint. 
 
     
     
         8 . The method according to  claim 7 , wherein the grout joint is formed in a ring-shaped recess in the upper surface of the foundation. 
     
     
         9 . The method according to  claim 7 , wherein the grout joint is formed in a shuttering built on the upper surface of the foundation. 
     
     
         10 . A method for configuring a tower adapter, said method comprising:
 providing a tower adapter with a cylindrical portion extending in a longitudinal direction of the tower adapter and a first lateral portion perpendicular to the cylindrical portion; and   providing a plurality of first through-holes in the first lateral portion, wherein the ratio of a maximum longitudinal extension and a maximum lateral extension of the adapter is smaller than or equal to 1.   
     
     
         11 . The method according to  claim 10 , wherein providing a tower adapter further comprises providing a tower adapter wherein the maximum longitudinal extension of the adapter is smaller than or equal to 2 m. 
     
     
         12 . The method according to  claim 10 , wherein providing a tower adapter further comprises providing a tower adapter with a weight less than or equal to 10,000 kg. 
     
     
         13 . The method according to  claim 10 , wherein providing a tower adapter with a first lateral portion further comprises providing a tower adapter with a first lateral portion having an outer portion extending to the outside of the cylindrical portion and an inner portion extending to the inside of the cylindrical portion, and wherein the outer portion comprises at least one outer through-hole and the inner portion comprises at least one inner through-hole. 
     
     
         14 . The method according to  claim 10 , wherein providing a tower adapter further comprises providing a tower adapter with a second lateral portion at a second end of the cylindrical portion which is opposite to the first end, the second lateral portion extending perpendicularly to the cylindrical portion and having a plurality of second through-holes. 
     
     
         15 . The adapter according to  claim 14 , providing a tower adapter with a second lateral portion further comprises providing a tower adapter with a second lateral portion having an inner portion extending to the inside of the cylindrical portion, and wherein the inner portion comprises the plurality of second through-holes. 
     
     
         16 . The adapter according to  claim 15 , wherein providing a tower adapter with a second lateral portion having an inner portion further comprises providing a tower adapter with a second lateral portion having an inner portion that has a spacing between the inner portion of the first lateral portion and the inner portion of the second lateral portion adapted to provide sufficient workspace for establishing bolt connections through the first and second through-holes. 
     
     
         17 . The adapter according to  claim 10 , wherein providing a tower adapter with a cylindrical portion further comprises providing a tower adapter with a cylindrical portion that is a circular cylinder.