Triangular concrete thin-wall folded plate pile and preparation method thereof

Abstract

The invention relates to a triangular concrete thin-wall folded plate pile; end-to-end connection is conducted on a concrete left plate, a concrete middle plate and a concrete right plate so as to bend and form a triangular drum shape; the three angles of the triangular drum are respectively provided with a first bottom angle joint-pouring concrete zone, a second bottom angle joint-pouring concrete zone and a top angle joint-pouring concrete zone which cover part of steel bars of a steel bar mesh. A preparation method comprises the following steps: the concrete left plate, the concrete middleplate and the concrete right plate which are flatly horizontal are simultaneously poured and stretched to form a concrete flat plate of which three steel bar meshes are connected; the concrete left plate and the concrete right plate are symmetrically bent to form an angle; when the angle reaches 90 degrees, harsh concrete is adopted to cast the bottom angle joint-pouring concrete zones; the symmetrical bending is conducted continuously so as to lead the concrete left plate, the concrete middle plate and the concrete right plate to form a triangular drum shape; short connecting bars on the toppart are welded, the top angle joint-pouring concrete zones are cast, simultaneously adjustment and repairing are conducted on the bottom angle joint-pouring concrete zones, and when the joint-pouringconcrete reaches design strength, the triangular concrete thin-wall folded plate pile is formed.

Description

technical field [0001] The invention relates to a pile foundation technology of a civil engineering structure, which is applied to foundation treatment and foundation pit support in engineering fields such as buildings and bridges, and to soil retaining support in the field of port and navigation engineering, and especially relates to a triangular thin-walled concrete Folded sheet pile and its preparation method. Background technique [0002] The foundations of many coastal cities in my country are soft soil foundations, so the foundations and retaining structures of buildings, bridges, port and navigation projects in these areas often use pile structures. Common piles include prefabricated reinforced concrete square piles, bored piles, prestressed centrifugal concrete pipe piles and steel pipe piles, etc. Among them, prefabricated reinforced concrete square piles have the advantages of easy construction quality assurance and high bearing capacity, but construction noise and...

AI Technical Summary

Problems solved by technology

Steel pipe piles are light in weight, require less energy for the pile driver, and have little impact on soil compaction during construction, but they are expensive

[0003] The construction of traditional concrete pile foundation works is better, but the cost is higher; the cost of deep mixing piles, sand piles, gravel piles and other projects is low, but the construction quality is not easy to guarantee

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