Double-layer plastic sleeve bulk material and concrete stiffness core composite pile and construction method thereof

A technology of strong-core combined piles and plastic casings, which is applied in sheet pile walls, soil protection, infrastructure engineering, etc. The problem of long construction time and other problems can achieve the effect of effectively controlling settlement and deformation, improving corrosion resistance and saving project cost.
CN103074891AInactive Publication Date: 2013-05-01浙江信博城市建设有限公司
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
浙江信博城市建设有限公司
Publication Date
2013-05-01
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a double-layer plastic sleeve bulk material and concrete stiffness core composite pile, which consists of a porous concrete cover plate at the pile top, a double-layer hollow plastic sleeve, a bulk material pile body, a reinforced concrete pile core, a precast reinforced concrete pile tip and a double-layer hollow plastic sleeve joint; the top of the double-layer hollow plastic sleeve is inserted into the porous concrete cover plate at the pile top, the bottom of the double-layer hollow plastic sleeve is connected with a sleeve plug of the precast pile tip, and two layers of adjacent plastic sleeve are connected by the sleeve joint; and an annular space formed by the double-layer hollow plastic sleeve is filled with the bulk material, and the reinforced concrete pile core is poured in a circular cavity of the inner layer of the plastic sleeve. The double-layer plastic sleeve bulk material and concrete stiffness core composite pile has the capabilities of integrating the advantages of a drainage consolidation method and a composite foundation method, greatly promoting the vertical bearing capability of a foundation by virtue of the reinforced concrete pile core, accelerating the consolidation of the soil body among piles through vertical drainage bodies at two sides of the concrete pile, isolating the pile body concrete from an external environment by using a sleeve, and enhancing the corrosion resistance of the pile body.
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Description

technical field

[0001] The invention relates to a double-layer plastic casing bulk material and concrete core combined pile which can simultaneously have the functions of accelerating the drainage and consolidation of the soil around the pile, enhancing the vertical deformation resistance of the foundation, and improving the durability of reinforced concrete, belonging to the foundation In the field of engineering, it can be used for soft foundation treatment of highway, municipal and other projects. Background technique

[0002] my country has a vast territory, complex geological conditions and large differences between regions, and there are many types of soft foundations, which are widely distributed, especially in coastal areas and inland lacustrine sedimentary facies areas. There are many complex medium-thick soft soil foundations. How to effectively improve the bearing capacity of deep soft soil foundations and control soil deformation has always been one of the most i...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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