A cross-sectional construction method of a multi-petal plum blossom-shaped pile, a special-shaped pile and a manufacturing method

Abstract

The invention provides a cross section construction method for multi-petal quincuncial piles. The cross section construction method for multi-petal quincuncial piles comprises the following steps: setting the number of petals of a quincuncial pile as n, and taking three circles which are different in radius and are concentric; guiding out 4n radials from the centers of the circles, wherein 4n intersection points of the 4n radials and the outer circle are O outside 4n, 4n intersection points of the 4n radials and the middle circle are O middle 4n, 4n intersection points of the 4n radials and the inner circle are O inside 4n, and O inside 4(k-1)+i, O middle 4 (k-1)+i and O outside 4(k-1)+i are positioned on the same radial; taking a three-point concyclic principle, and drawing convex arcs by taking intersection point O middle 4(n-1)+1, O outside 4(n-1)+2 and O middle 4(n-1)+3 as reference points; and drawing concave arcs by taking intersection point O middle 4 (n-1)+3, O inside 4n and O middle 4n+1 as reference points. By streamed connection between the n convex arcs and the N concave arms, stress concentration can be prevented effectively, and the bearing capacity of the pile and the strength of a pile body are greatly improved.

Description

technical field [0001] The invention relates to the technical field of foundation piles, in particular to a method for constructing a cross section of a multi-petal quincunx pile, a special-shaped pile and a manufacturing method. Background technique [0002] Due to the fast construction speed, large reinforcement depth, suitable for various geological conditions, pile foundation can significantly improve the bearing capacity of the foundation and reduce deformation, it is widely used in construction, transportation, transmission and transformation line towers and marine foundations and other engineering practices. Increasing the pile diameter or pile length can improve the overall bearing capacity of the pile foundation, but blindly increasing the material to increase the bearing capacity is not economical and increases the difficulty of construction. Therefore, it is necessary to seek a high utilization rate of unit materials to achieve high bearing capacity and low cost. ...

AI Technical Summary

Problems solved by technology

But the connection between two adjacent special-shaped parts in the special-shaped piles made under the guidance of the first method is a non-streamlined connection, which is prone to stress concentration when the pile bears a large force, thus It is easy to damage the pile due to excessive local stress

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