Prestressed concrete tubular type wind generating set foundation

Abstract

The invention belongs to tower frame foundations supporting wind generating sets, and discloses a prestressed concrete tubular type wind generating set foundation. The prestressed concrete tubular type wind generating set foundation is characterized in that a foundation concrete cushion layer (8) is built on the bottom surface of a base structure bearing pit body with big end up, a tubular type concrete body (1) is arranged on the foundation concrete cushion layer (8), anchor bolts (3) penetrate through the inner portion of the tubular type concrete body (1) up and down, the upper ends of the anchor bolts (3) are connected with template rings (9), the lower ends of the anchor bolts (3) are fixed on bottom rings (4), bottom portion leveling foundation bolts (7) are arranged below the bottom rings (4), and the lower ends of the leveling foundation bolts (7) are connected with the foundation concrete cushion layer (8). The prestressed concrete tubular type wind generating set foundation is good in manufacturability and fast in construction, and aims to overcome the defects of the prior art and improve economic profit.

Description

technical field [0001] The invention belongs to the tower foundation supporting the wind power generating set, and is a prestressed concrete cylinder type wind power generating set foundation. Background technique [0002] In recent years, the construction of wind power generation projects in my country is in full swing. The foundation structure supporting the tower of the wind turbine unit refers to the foundation structure of a high-rise building and adopts an extended foundation or a pile foundation. The design method is mature and the construction is convenient. Due to the particularity of repeated loads and large eccentric forces, and with the gradual increase of the capacity of a single unit, the limitations of conventional foundations are gradually revealed: ① In order to bear the large eccentric loads of the fan, the size of the foundation continues to increase, and the engineering volume increases sharply; ② In order to ensure The integrity of the foundation requires ...

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Problems solved by technology

[0002] In recent years, the construction of wind power generation projects in my country is in full swing. The foundation structure supporting the tower of the wind turbine unit refers to the foundation structure of a high-rise building and adopts an extended foundation or a pile foundation. The design method is mature and the construction is convenient. Due to the particularity of repeated loads and large eccentric forces, and with the gradual increase of the capacity of a single unit, the limitations of conventional foundations are gradually revealed: ① In order to bear the large eccentric loads of the fan, the size of the foundation continues to increase, and the engineering volume increases sharply; ② In order to ensure The integrity of the foundation requires large-volume concrete to be poured at one time, and the construction temperature cracks are difficult to control; ③The foundation construction period is lengthened

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