Controlled grouting anti-skid composite structure of steel flower tube and its rapid construction method

Abstract

The invention relates to a steel flower tube control grouting and skid resistance composite structure and a quick construction method of the composite structure. The composite structure is composed of steel flower tube piles, inter-pile composite soil mass and a tube top frame. The tube top frame is composed of beams and stringers and fixed on a slope platform or buried in a slope, wherein the beams and the stringers are formed by pouring concrete. The tops of steel flower tubes and longitudinal load-bearing bars in the frame are welded and integrally poured in a frame beam. The soil mass between the steel flower tube piles forms the inter-pile composite soil mass because of the fracturing grouting effect. The steel flower tube piles, the inter-pile composite soil mass and the tube top frame form a composite structure to jointly resist landslide thrust or soil pressure. Compared with a traditional steel flower tube pile, according to the steel flower tube control grouting and skid resistance composite structure, bending resistance and shearing resistance are remarkably improved, and large landslide thrust or soil pressure can be resisted. Meanwhile, the composite structure and the quick construction method have the advantages that construction is quick, the degree of mechanization is high, disturbance to a slope is small, and construction in rainy season is facilitated, thereby being a highly promising novel slope reinforcement technology.

Description

technical field [0001] The invention relates to an anti-sliding composite structure with controlled grouting and a rapid construction method thereof, which is suitable for slope reinforcement projects such as roads, railways, mines, municipalities, etc., especially in emergency rescue of slopes, and has rapid and mechanized construction. It has the advantages of high degree, little disturbance to the slope, and convenient construction in rainy season. Background technique [0002] Conventional steel flower pipe piles have small pile diameter, limited bending and shearing resistance, and are not effective in treating slopes with deep sliding surfaces; while traditional anti-slide piles have long construction time, large disturbance to slopes, and difficult construction in rainy seasons , Construction safety hazards and other issues. How to develop a prevention and control technology that is not only suitable for deep landslide management, but also has the characteristics of ...

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to provide a composite structure with controlled grouting and its rapid construction method, so as to solve the problem of insufficient anti-sliding ability of traditional steel flower pipe piles and the difficulty of rapid mechanized construction of anti-slide piles

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