A method of forming a wind turbine foundation , comprising: providing an anchor cage in an excavation pit formed in a ground surface (G), the anchor cage including an upper flange , a lower flange , and a plurality of anchor bolts extending between the upper and lower flanges ; directing a first cementitious material into the excavation pit so that the anchor cage becomes at least partially embedded within the first cementitious material; allowing the first cementitious material to cure to form a rigid body ; selectively engaging a connecting element with the upper flange and positioning an actuating element in operative relation with the connecting element , the connecting element and the actuating element positioned in non-contact relation with the anchor bolts ; actuating the actuating element relative to the connecting element and thereby raising the upper flange from the rigid body into a leveled position (M); directing a second cementitious material into a space beneath the raised upper flange ; and allowing the second cementitious material to cure to form a support layer , wherein the method further comprises: providing at least one leveling device at a position spaced above the upper flange , the at least one leveling device being supported on the anchor bolts , positioning the at least one leveling device to define a level plane (M), and wherein raising the upper flange into a leveled position (M) includes raising the upper flange to contact the leveling device . providing an anchor cage in an excavation pit formed in a ground surface (G), the anchor cage including an upper flange , a lower flange , and a plurality of anchor bolts extending between the upper and lower flanges ; directing a first cementitious material into the excavation pit so that the anchor cage becomes at least partially embedded within the first cementitious material; allowing the first cementitious material to cure to form a rigid body ; selectively engaging a connecting element with the upper flange and positioning an actuating element in operative relation with the connecting element , the connecting element and the actuating element positioned in non-contact relation with the anchor bolts ; actuating the actuating element relative to the connecting element and thereby raising the upper flange from the rigid body into a leveled position (M); directing a second cementitious material into a space beneath the raised upper flange ; and allowing the second cementitious material to cure to form a support layer , wherein the method further comprises: providing at least one leveling device at a position spaced above the upper flange , the at least one leveling device being supported on the anchor bolts , positioning the at least one leveling device to define a level plane (M), and wherein raising the upper flange into a leveled position (M) includes raising the upper flange to contact the leveling device . providing at least one leveling device at a position spaced above the upper flange , the at least one leveling device being supported on the anchor bolts , positioning the at least one leveling device to define a level plane (M), and wherein raising the upper flange into a leveled position (M) includes raising the upper flange to contact the leveling device . <EOS>