A square hollow stepped variable-diameter anti-slide pile structure and construction method

Abstract

A square hollow stepped anti-slide pile structure and construction method, the anti-slide pile structure consists of five sections from top to bottom, including the first pile body section (1), the second pile body section (2), the second pile body section Three pile body segments (3), a fourth pile body segment (4) and a fifth pile body segment (5). Among them, the third pile body section has the longest side length and the largest cross-sectional area; then the side length decreases step by step towards the top and bottom of the pile, and the diameter of the pile body is reduced step by step, and the adjacent two sections are connected by a variable section. The second pile body segment (2) to the fourth pile body segment (4) are pile body hollow segment (6) structures. The anti-slide pile structure of the present invention has extremely strong bending resistance, shear resistance, and shear resistance, and the cross-sectional area of ​​the middle section of the pile body is significantly increased, showing stronger anti-slide ability; the anti-slide pile structure of the present invention saves building materials and reduces costs , under the same compressive, bending, and shearing capacity values, it can save 40%-70% of building materials such as concrete, and the economic benefits are obvious.

Description

technical field [0001] The invention relates to a square hollow stepped variable diameter anti-sliding pile structure and a construction method, belonging to the technical field of civil engineering pile structures. Background technique [0002] With the rapid development of scientific and technological water products in the field of civil engineering, especially in slopes and foundation pits, the anti-slip requirements for slopes and foundation pits are also getting higher and higher, coupled with the complexity of geological conditions, so Anti-slide piles put forward more comprehensive, stronger and higher requirements. Reinforced concrete anti-sliding pile is an effective component that supports the sliding force of the sliding body and stabilizes the slope. [0003] At present, the anti-sliding piles for landslide prevention mainly use a single large-diameter reinforced concrete pile. The diameter of the reinforced concrete piles is consistent up and down, while the st...

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Problems solved by technology

[0003] At present, the anti-slide piles used to prevent landslides mainly use a single large-diameter reinforced concrete pile. Parabola-like distribution, the inconsistency between the two causes waste of some materials

At present, in the field of civil engineering, in order to achieve compression resistance, bending resistance and shear resistance, the general situation is to increase the length and diameter of anti-slide piles to improve the overall strength and force capacity of the pile foundation. This practice will undoubtedly lead to an increase in workload and a reduction in work efficiency, especially the waste of materials will lead to a substantial increase in engineering costs.

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