Spike tooth concrete tubular pile and construction method thereof
A technology of concrete pipe piles and construction methods, which can be applied to sheet pile walls, foundation structure engineering, construction, etc., and can solve problems such as difficulties in sinking piles
Inactive Publication Date: 2012-09-26
张永忠
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Problems solved by technology
[0002] Concrete pipe piles used as support for building foundations are driven into the ground by hammering, static pressure or vibration. Pipe piles that do not penetrate rock are supported by the friction between the pipe pile wall and the geological soil. For buildings, increasing the friction between the pile and the geological soil will increase the bearing capacity of the pile. However, increasing the friction between the pile and the geological soil can make the surface of the pile rough or add a ridge, which will make it difficult to sink the pile.
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[0012] attached figure 1 It is a specific embodiment of the present invention. In this embodiment, the concrete pipe pile 1 pile body is provided with several square holes 7. Before sinking the pile, a butt tooth 4 is inserted in the square hole. The cross section of the butt tooth is square, and one end of the butt tooth is provided with End cap 5, the end face of the other end is inclined. After sinking the pile, put the steel pipe 1 with the conical end 3 at the lower end into the concrete pipe pile, and hammer the upper end of the steel pipe to penetrate the butt teeth into the soil, and lift out the steel pipe. Concrete is poured into the concrete pipe pile.
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The invention relates to a spike tooth concrete tubular pile for a building foundation and a construction method of the spike tooth concrete tubular pile. A plurality of square holes are formed in the pile body of a concrete tubular pile; spike teeth are plugged into the square holes before pile sinking; the sections of the spike teeth are square; an end cap is arranged at one end of each spike tooth; the end surface at the other end of the spike tooth is inclined; a steel pipe, of which the lower end is provided with a cone end socket, is placed in the concrete tubular pile after pile sinking; the spike teeth can be injected into a soil body by hammering the upper end of the steel pipe; and then concrete is poured into the concrete tubular pile. According to the invention, the spike teeth are placed in the pile body before pile sinking and are injected into the soil body after pile sinking, so that the friction force between the pile body and the geologic soil body on the condition that the pile sinking difficulty is not increased, that is, the bearing capacity of the pile is increased.
Description
1. Technical field [0001] The invention relates to a concrete pipe pile and a construction method thereof, in particular to a butt-toothed concrete pipe pile for building foundations and a construction method thereof. 2. Background technology: [0002] Concrete pipe piles used as support for building foundations are driven into the ground by hammering, static pressure or vibration. Pipe piles that do not penetrate rock are supported by the friction between the pipe pile wall and the geological soil. For buildings, increasing the friction between the pile and the geological soil will increase the bearing capacity of the pile. However, increasing the friction between the pile and the geological soil can make the surface of the pile rough or add a ridge, which will make it difficult to sink the pile. . 3. Contents of the invention: [0003] The present invention overcomes the above disadvantages and provides a butt tooth concrete pipe pile and a construction method thereof. ...
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IPC IPC(8): E02D5/30
Inventor 张永忠
Owner 张永忠