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Prestressed concrete tubular type wind generating set foundation

A technology for wind turbines and concrete, which is applied in infrastructure engineering, construction, etc., can solve the problems of difficult control of construction temperature cracks, lengthened foundation construction period, etc. The effect of extensibility requirements

Active Publication Date: 2015-04-22
POWERCHINA XIBEI ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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

Method used

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  • Prestressed concrete tubular type wind generating set foundation
  • Prestressed concrete tubular type wind generating set foundation

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Embodiment Construction

[0018] like figure 1 As shown, a prestressed concrete cylindrical column foundation is characterized in that: a foundation concrete cushion 8 is built on the bottom surface of the bearing pit body of the foundation structure with a large upper part and a smaller one at the lower part, and the cylindrical concrete body 1 is located on the cushion layer 8 , there are anchor bolts 3 running through the interior up and down, the upper end of the anchor bolt 3 is connected with the formwork ring 9, the lower end of the anchor bolt 3 is fixed on the bottom ring 4, and the leveling anchor bolt 7 is arranged under the bottom ring 4, and the lower end of the leveling anchor bolt 7 is connected to the foundation Concrete pad 8 connections.

[0019] The outer wall of the cylindrical concrete body 1 is a cylindrical galvanized corrugated steel cylinder 5 coaxial with the cylindrical concrete body 1 , and the galvanized corrugated steel cylinder 5 is covered with concrete 2 .

[0020] lik...

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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 ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D27/44
Inventor 李振作张立英胡永柱申宽育
Owner POWERCHINA XIBEI ENG
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