A combined electric tower pile foundation
A technology of pile foundation and electric tower, which is applied in the direction of foundation structure engineering, construction, etc., can solve problems such as the inability to reasonably consider the effect of goaf, and achieve the effects of enhancing the ability of uneven settlement of the foundation, improving utilization efficiency, and facilitating maintenance and repair
Active Publication Date: 2020-11-17
GUIZHOU POWER GRID CO LTD
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Problems solved by technology
The existing tower foundation design method cannot reasonably consider the gob effect, and in-depth research is urgently needed
Method used
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[0019] The implementation of the present invention will be described in detail below in conjunction with the drawings and examples.
[0020] The combined electric tower pile foundation of the present invention is made up of four electric tower pile foundation connections, and its improvement is:
[0021] 1. The layout of the pile foundation of a single tower.
[0022] According to the slope deformation characteristics of the goaf, the underground goaf conditions have a certain influence area on the overlying slope, which may cause geological disasters such as landslides, and the foundation of the tower near the slip surface will be affected. The invention changes the traditional vertically arranged pile foundation into an inclined arrangement, and the inclined direction is toward the outside of the tower foundation. This arrangement makes the influence range of the equivalent pile foundation larger, and the relative relationship with the sliding surface is closer to vertical,...
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The invention provides a combined electric tower pile foundation. The combined electric tower pile foundation is constituted by four electric tower pile foundations which are connected, and each electric tower pile foundation comprises a bearing platform and piles. The combined electric tower pile foundation is characterized in that the four electric tower pile foundations are located at the fourcorners of a square correspondingly, and the bearing platform of each electric tower pile foundation is connected with the bearing platforms of the other three electric tower pile foundations throughsteel bars; and in each electric tower pile foundation, the first vertical pile is anchored in the center of the lower part of the bearing platform, the multiple second piles surrounding the center are further arranged on the lower part of the bearing platform, and all the second piles incline in the direction away from the center. Aiming at the force bearing characteristics of electric tower foundations on a side slope of a goaf, a traditional electric tower foundation form is transformed, and the stability of the electric tower foundations beside the goaf is improved.
Description
technical field [0001] The invention belongs to the technical field of power transmission and transformation engineering equipment, and relates to a combined electric tower pile foundation, in particular to a continuously adjustable anti-goaf foundation for a high-voltage transmission line electric tower on a goaf slope in a mountain area during an early warning period. Background technique [0002] In recent years, my country's electric power has developed very rapidly. The selection of transmission lines inevitably passes through coal mine goafs. The tower foundations of transmission lines are often built on slopes, and there are often unfavorable geology such as goafs or karst in the lower part of slopes. effect. Affected by the side slope, goaf or karst, etc., the tower foundation on the slope often fails and is damaged, which affects the safe operation of the tower foundation. The cost of relocation and maintenance of transmission lines is huge, and there is a growing t...
Claims
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IPC IPC(8): E02D27/42E02D27/12E02D27/16
CPCE02D27/12E02D27/16E02D27/42
Inventor 马立秋赵艺颖肖致黔张彬魏延勋马昌慧张嘎
Owner GUIZHOU POWER GRID CO LTD