Prefabricated assembly and cast-in-place concrete combined wind turbine foundation

(10) WO2022/252754A1

(22) 17.03.2022

(43) 08.12.2022

(57) A prefabricated assembly and cast-in-place concrete combined wind turbine foundation, comprising a prefabricated assembly part and a cast-in-place concrete part. The prefabricated assembly part is annular, the prefabricated assembly part is embedded in the cast-in-place concrete part, and bolts are embedded in the prefabricated assembly part. According to the present application, the stress characteristics of the fan foundation are considered, the process characteristics and advantages of prefabricated concrete and cast-in-place concrete are fully utilized, high-strength concrete factory prefabrication is used in the main stress area of a foundation structure, thereby overcoming the difficulties of scattered wind farm construction points, poor construction conditions, and difficulty in construction quality control and supervision are overcome, and better ensuring concrete strength pouring quality in a key stress area than use of only cast-in-place construction; cast-in-place concrete is used in a non-main stress area, and a lower concrete strength grade is used while design requirements are satisfied, thereby better adapting to construction operation conditions and reducing project costs; the volume of on-site concrete pouring is reduced, thereby improving the on-site construction efficiency of a project.

(71) Huaneng Clean Energy Research Institute [CN]


Related articles:

Issue 07/2022

Foundation for a wind turbine

(10) WO 2022/069348 Al (22) 23.09.2021 (43) 07.04.2022 (57) The invention relates to a foundation for a wind turbine, wherein the foundation (10) comprises substantially prefabri­cated elements,...

Issue 09/2023

Grouting-Free-Dry-Type prestressed bolt segment-assembled prefabricated concrete tower

(10) EP4202209A1 (22) 17.06.2021 (43) 28.06.2023 (57) The present invention discloses a grouting-free dry-type prestressed bolt segment-assembled prefabricated concrete tower, comprising a top steel...

Issue 05/2017

Precast concrete elements for the energy transition – Part I: wind power plants

Since the introduction of the Renewable Energy Source Act (EEG) in 2000, there is the political intention in Germany to join climate protection and energy politics through the specific expansion of...


Tall wind turbine towers with 3D-printed concrete bases

GE Renewable Energy, Cobod and LafargeHolcim announced that they will partner to co-develop wind turbines with optimized 3D printed concrete bases, reaching record heights up to 200?m. The three...

Issue 01/2023

Concrete foundation for a wind turbine tower and method for installing same

(10) EP 4 079 970 A1 (22) 22.12.2020 (43) 26.10.2022 (57) A precast concrete foundation (100; 200) for a wind tower (140; 240), comprising a slab (110, 120; 210, 220a, 220b), a pedestal (130; 230) and...