A kind of gunpowder ignition type welded prefabricated pile and its welding method

Abstract

The invention discloses a gunpowder ignition type welded prefabricated pile and a welding method thereof, which can effectively overcome the shortcomings of the previous welding connection methods. Starter device, wire, stress and strain sensor, strain gauge. The present invention has a complete composition, and by changing the welding method of the prefabricated pile, the problems existing in the previous connection method are overcome, and the pile connection is more convenient, the connection is more stable, and the strength is higher. At the same time, a stress-strain detection device is provided to detect the stress-strain and structural integrity.

Description

technical field [0001] The invention relates to the technical field of civil engineering, in particular to a gunpowder ignition type welding prefabricated pile and a welding method thereof. Background technique [0002] Prefabricated piles refer to piles made in factories or construction sites. When driving them to the preset position, the length of a pile generally cannot meet the requirements, and it needs to be spliced ​​to make the driven piles reach the preset depth. At present, the connection methods of concrete precast piles are mainly through welding connection of upper and lower pile end plates, flange connection, and mechanical quick connection (mesh connection, threaded connection) to achieve the connection strength required by the design. However, these methods also have many shortcomings. For example, general welding is done by manual welding at a position close to the surface. The welding quality is easily affected by human factors and weather conditions. The j...

AI Technical Summary

Problems solved by technology

But these methods also have many deficiencies, such as general welding is completed by manual welding at a position closer to the surface, the welding quality is easily affected by human factors and weather conditions, the joints are easy to corrode and rust, and the quality of the weld is difficult to control , time-consuming and labor-intensive, and at the same time, it is difficult to fully guarantee the tensile performance, which in turn affects the quality of the entire construction project.

At the same time, there may be connection misalignment in the mechanical connection, so that cracks and damage may occur at the connection during the piling process.

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