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High-voltage electric tower foundation construction method

A technology of foundation construction and high-voltage electricity, which is applied in the direction of foundation structure engineering, buildings, sheet pile walls, etc., and can solve problems such as long period, large amount of engineering, and large impact on the surrounding environment

Pending Publication Date: 2021-12-31
STATE GRID HEBEI ELECTRIC POWER CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Although the construction personnel tried to use soft soil foundation treatment methods such as replacement and filling method, gravel pile compaction method, and dynamic compaction method to strengthen the soft soil foundation, however, the above methods still have huge engineering volume, huge material consumption, and high cost. , long cycle and other issues, and has a greater impact on the surrounding environment

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  • High-voltage electric tower foundation construction method
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  • High-voltage electric tower foundation construction method

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Embodiment 1

[0066] The construction method of the high-voltage electric tower foundation provided by the present invention is now described. This embodiment is applicable to the installation and use of small electric towers below 12 meters, and the installation foundation required by small electric towers is smaller than that of large electric towers above 12 meters. A method for constructing a high-voltage electric tower foundation, comprising the following steps:

[0067] Clean up the silt and accumulated water on the foundation, and lay a stable layer on the foundation. The thickness of the stable layer is 300mm. Lay the stable layer on the foundation, and use a sand cushion with a thickness of 200mm as the stable layer.

[0068] The geotextile is laid on the stable layer, and the sealing layer is laid on the geotextile, and the edges of the geotextile and the sealing layer are buried in the stable layer.

[0069] Insert several drainage boards 1 into the foundation by using a pluggi...

Embodiment 2

[0081] The construction method of the high-voltage electric tower foundation provided by the present invention is now described. This embodiment is applicable to the installation and use of a large electric tower with a height of 12 meters or more. The installation foundation required by a large electric tower is larger than that of a small electric tower, so better bearing stability is required. A method for constructing a high-voltage electric tower foundation, comprising the following steps:

[0082] Clean up the silt and accumulated water on the foundation, and lay a stable layer on the foundation. The thickness of the stable layer is 500mm. The laying of the stable layer mainly includes the following layers of pavement. The sand cushion is laid on the foundation. The thickness of the sand cushion is 300mm; the water-absorbing cushion is laid on the sand cushion. The thickness of the layer is 100mm; the fine sand layer is laid on the water-absorbing cushion, and the thick...

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Abstract

The invention provides a high-voltage electric tower foundation construction method, and relates to the technical field of foundation construction. The construction method comprises the following steps: cleaning sludge and accumulated water on a foundation; laying a stable layer; conducting vacuum extraction precipitation operation through a drainage plate; driving a plurality of cement mixing piles and compaction piles to the foundation; and installing a pouring base on the foundation, pouring grout, and arranging a backfill soil layer. According to the high-voltage electric tower foundation construction method, after the stabilizing layer is laid, the drainage plate is inserted into the foundation through a plate inserting machine, vacuum extraction precipitation operation is conducted to enable the water level to drop, the cement soil mixing piles and the compaction piles are arranged to enable the foundation to have good bearing capacity, finally, the pouring base is arranged, grout is poured into the pouring base to enable the foundation to be further stabilized, and the reliability of subsequent electric tower installation is ensured.

Description

technical field [0001] The invention belongs to the technical field of foundation construction, and more specifically relates to a method for constructing a foundation of a high-voltage electric tower. Background technique [0002] In the process of electric power construction, it is often encountered that electric towers need to be installed on soft soil foundations. The above-mentioned soft soil foundations are mostly distributed in coastal areas, with complex geological conditions, and need to be reinforced before they can be used as the installation foundation of electric towers, which directly affects the stability of electric tower installation, and is also related to the safe operation of the line, and more importantly, the project investment and comprehensive benefits. The treatment of soft soil foundation should not only meet the basic design requirements of general electric towers, but also meet the requirements of tower foundation settlement and inclination, so t...

Claims

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Application Information

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IPC IPC(8): E02D3/10E02D5/46E02D3/12
CPCE02D3/10E02D5/46E02D3/12
Inventor 李博李涛代天培李欢王佼佼杨越崔可心
Owner STATE GRID HEBEI ELECTRIC POWER CO LTD