Construction method of spun expanded steel pipe pile

Abstract

The invention discloses a construction method of a spun expanded steel pipe pile. The construction method of the spun expanded steel pipe pile comprises, S1, mounting a pile driving device with a spundriving device in position, mounting a spun expanded steel pipe pile with the outer circumferential surface with continuous helical blades onto the pile driving device with the spun driving device ina matched mode, and aligning to a designed position of the spun expanded steel pile, adjusting the perpendicularity of the spun expanded steel pipe pile; S2, rotating the spun driving device to drivethe spun expanded steel pipe pile to rotatingly drill downwards into soil stratum; S3, determining whether pile extending is required, if so, entering the step S4; S4, mounting an extending steel pipe pile onto the spun driving device of the pile driving device, rotating the spun driving device to drive the spun expanded steel pipe pile and the pile body of the extending steel pipe pile to rotatingly drill downwards into soil stratum; S5, determining whether pile extending is still required, if so, repeating the step S4 until reaching a designed depth meeting the overall construction requirements of the steel pipe pile. By continuously driving the steel pipe pile into the soil stratum through the continuous helical blades, the construction method of the spun expanded steel pipe pile can greatly increase the construction speed and ensure perpendicularity of the steel pipe pile.

Description

technical field [0001] The invention relates to the technical field of building construction, in particular to a construction method for spinning and expanding head steel pipe piles. Background technique [0002] Steel pipe piles are currently widely used in the pile foundations of bridges, docks, houses, etc. from small to large buildings. It is very convenient for lifting, transportation or pile sinking. It is characterized by high bearing capacity. The current steel pipe piles It is generally hollow and cylindrical, and its construction method is to use piling equipment and piling hammers to drill into the ground. The problem with this construction method is that steel pipe piles are not easy to be drilled into the ground, which seriously affects the construction efficiency. [0003] At present, there are some patent records about steel pipe piles with spiral blades, and using the steel pipes for construction, such as the invention patent "Construction method of steel pip...

AI Technical Summary

Problems solved by technology

[0002] Steel pipe piles are currently widely used in the pile foundations of bridges, docks, houses, etc. from small to large buildings. It is very convenient for lifting, transportation or pile sinking. It is characterized by high bearing capacity. The current steel pipe piles It is generally hollow and cylindrical, and its construction method is to use piling equipment and piling hammers to drill into the ground. The problem with this construction method is that steel pipe piles are not easy to be drilled into the ground, which seriously affects the construction efficiency.

The steel pipe pile and the construction method of the steel pipe pile are conducive to improving the construction efficiency, and can partially reduce the disturbance to the surrounding ground, but the method of cutting the steel pipe pile is not conducive to maintaining the overall verticality of the steel pipe pile

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