Uplift steel pile foundation with continuous trapezoidal rib plates

Abstract

The invention belongs to the technical field of civil engineering, and particularly relates to an anti-pulling steel pile foundation with a continuous trapezoidal rib plate, which consists of a bottom plate, stiffening ribs, a steel pipe pile, the continuous trapezoidal rib plate and a pile tip, the bottom plate is welded to the top end of the steel pipe pile, the stiffening ribs are welded to the bottom face of the bottom plate and the outer surface of the steel pipe pile, the four continuous trapezoidal rib plates are circumferentially and evenly welded to the lower portion of the steel pipe pile, and the pile tip is welded to the bottom of the steel pipe pile. The continuous trapezoidal rib plate is composed of seven right trapezoids, and the surface of the continuous trapezoidal rib plate is galvanized. The foundation can adapt to geological characteristics of a frozen area, frost heaving and frost pulling of the pile foundation are effectively prevented, and the stability of the pile foundation is improved; the problem that the pile foundation is eroded due to the freezing and thawing effect due to the high underground water level in the frozen soil area can be solved; the effective treatment depth is not limited and can be adjusted along with the actual depth of the frozen soil layer.

Description

technical field [0001] The invention belongs to the technical field of civil engineering, and in particular relates to an uplift-resistant steel pile foundation with continuous trapezoidal ribs. Background technique [0002] Frozen soil refers to various soils and rocks that are below zero degrees Celsius and contain ice. Frozen soil is widely distributed in my country, and the total distribution area of ​​permafrost and seasonal frozen soil accounts for almost two-thirds of the entire land area. Frozen soil is extremely sensitive to temperature. In the construction of basic buildings such as buildings in frozen soil areas, the impact of frost heave and thaw settlement of frozen soil must be considered. When frost heave occurs in the soil in the frozen area, the building (structure) foundation buried in the soil will be affected by the frost heave force, including the normal frost heave force acting on the bottom of the foundation, and the horizontal frost heave force actin...

AI Technical Summary

Problems solved by technology

The tangential frost heave force is also called the freeze-pull force, which will produce an upward freeze-pull displacement, which has a great impact on the foundation of buildings or structures such as photovoltaic brackets and street light poles with light upper structures, which is not conducive to the safety of foundations in permafrost areas. Stability and Durability

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