Pile extraction construction method

A construction method and technology on the construction site, applied in sheet pile walls, foundation structure engineering, construction, etc., can solve problems such as exceeding the compressive strength of concrete, requiring high pile head strength, and unable to pull out multi-section piles, etc., to avoid skewing , good pore forming effect, and strong promotion and application value

Inactive Publication Date: 2009-09-23
黄河水利委员会河南黄河河务局 +2
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

After the pile is driven into the ground for a long time, the soil around the pile is squeezed by high strength, which not only makes the strength of the soil around the pile higher than that of the original soil, but also connects the pile and the soil around the pile together. The resistance between the soil around the pile is no longer the resistance at the time of the original design. It not only exceeds the compressive strength of the concrete of the pile itself, but also exceeds the tensile strength of the pile itself. The multi-section pile cannot be pulled out with existing construction machinery and construction methods.
Some use the method of directly pu

Method used

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Embodiment Construction

[0019] Such as figure 1 , figure 2 and image 3 Shown, each equipment / component among the present invention comprises chassis frame 30, vertical frame 31, winch 32, water pump-motor 33 (water supply system) and hole former 34, and vertical frame 31, winch 32 and water pump-motor 33 are arranged On the chassis frame 30, the vertical frame 31 is welded or bolted by channel steel and diagonal braces. The top of the vertical frame 31 is provided with a pulley 35 and a pulley 36. The hoist 32 and the hole forming device 34 are wound on the pulley 35 and the pulley 36. The rope 37 transmission connection, the rope 37 is a steel wire rope, the size and model are determined according to the actual situation, the water outlet of the water pump-motor 33 is connected with the hole forming device 34 through the water inlet pipe 3, and the water inlet pipe 3 above the stand 31 is provided with a section of flexible pipe 38. The hole forming device 34 comprises a hole forming device bod...

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Abstract

The invention discloses a pile extraction construction method. The method is characterized by separating pipe pile which is embedded in ground from surrounding soil mass thereof by pounding of high-pressure jetting with a jetting pore-forming machine so as to greatly reduce or eliminate cohesive force between the pipe pile and the surrounding soil mass thereof, thus facilitating pile extraction construction. The method is characterized by creating pores to remove the cohesive force between the pipe pile and the surrounding soil mass thereof, then extracting a pile by a crane with corresponding tonnage. The method has the advantages of simple operation, safe and reliable property and high operation efficiency, and is applicable to pile extraction in water, dry land and soft ground layers with various diameters and depths.

Description

technical field [0001] The invention belongs to the technical field of civil engineering and water conservancy engineering construction, and in particular relates to a pile pulling construction method. Background technique [0002] With the development of the economy and society, there are more and more old buildings or other civil engineering projects that are demolished, expanded or newly built. Therefore, in the newly developed base, many engineering piles left in the ground by the old buildings have become obstacles to construction and must be removed. Demolition, in order to implement new construction. After the pile is driven into the ground for a long time, the soil around the pile is squeezed by high strength, which not only makes the strength of the soil around the pile higher than that of the original soil, but also connects the pile and the soil around the pile together. The resistance between the soil around the pile is no longer the resistance when it was origi...

Claims

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Application Information

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IPC IPC(8): E02D9/02
Inventor 耿明全刘培勋苏茂荣仵海英白领群展波刘云生李成崔武吴林峰田志强
Owner 黄河水利委员会河南黄河河务局
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