Foundation pile for highway bridge

Abstract

The invention discloses a foundation pile for a highway bridge, and belongs to the technical field of highway bridge construction. The foundation pile for the highway bridge comprises a base, wherein an annular groove is formed in the middle of the top surface of the base, a shell is arranged in the annular groove, a plurality of through grooves are annularly formed in the lower end of the outer wall of the shell at equal intervals, moving blocks are arranged in the positions, which are relative to the positions between every two adjacent through grooves, in the shell, a plurality of limiting plates are annularly and fixedly arranged on the upper end of the inner wall of the shell at equal intervals, two adjacent limiting plates are in clearance fit so as to form a limiting groove, an extrusion column is inserted in the middle of the shell, a top ring is fixedly arranged in the middle of the top surface of the extrusion column, internal threads are formed on the inner wall of the top ring, a plurality of fixed plates are annularly and fixedly arranged on the outer wall of the extrusion column at equal intervals, and a tension assembly is arranged on the lower side of the outer part of the shell. According to the foundation pile, the bearing capacity of the foundation pile can be greatly increased, the assembling process is humanized and facilitated, the construction period can be effectively shortened, time and labor are saved, and the practicability is high.

Description

technical field [0001] The invention relates to the technical field of road and bridge construction, and more specifically relates to a foundation pile for a road bridge. Background technique [0002] Foundation pile is a professional term in building structure, usually referring to pile foundation, deep foundation composed of pile and pile cap connected to pile top or single pile foundation connected by column and pile foundation is called pile foundation, among which the low The cap pile foundation is to bury the pile body completely in the soil, and the bottom surface of the cap is in contact with the soil, so it can be applied to buildings with higher requirements. In the process of road construction, low cap pile foundations are often used to strengthen the road However, most of the foundation piles used in the existing road construction are prefabricated reinforced concrete piles driven into the ground by pile drivers and used as foundation piles. Although such foundat...

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Problems solved by technology

[0002] Foundation pile is a professional term in building structure, usually referring to pile foundation, deep foundation composed of pile and pile cap connected to pile top or single pile foundation connected by column and pile foundation is called pile foundation, among which the low The cap pile foundation is to bury the pile body completely in the soil, and the bottom surface of the cap is in contact with the soil, so it can be applied to buildings with higher requirements. In the process of road construction, low cap pile foundations are often used to strengthen the road However, most of the foundation piles used in the existing road construction are prefabricated reinforced concrete piles driven into the ground by pile drivers and used as foundation piles. Although such foundation piles save materials, the construction time is longer, and they are easy to use. The construction period is delayed, and because it is installed by driving into the ground, its structure is relatively thin in order to make it easier to drive in. In this way, high-density installation is required, which will increase a lot of cost consumption. If it is low-density installation, it will save In addition, the existing pile foundation structure is simply inserted deep into the soil, which must be fabricated in advance and then drilled to a certain depth with the help of a pile driver. The mechanical support stability can only be achieved by burying the ground, but the preparation of the concrete pile foundation in advance requires additional transportation costs, and the existing pile foundation inserted into the soil is inserted upright, so it cannot achieve stable attachment to the surrounding soil. In view of this, We propose a foundation pile for highway bridges

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