Hollow stiffness-core slurry-solidified discrete material pile and construction method thereof

A technology for piles and grouting of bulk materials, which is applied to sheet pile walls, infrastructure engineering, construction, etc., can solve the problems of large differences in stiffness of bulk materials, difficulty in exerting the bearing capacity of materials, and inability to perform grouting reinforcement, etc. To achieve the effect of clear construction process, simple and efficient construction process and good pile forming effect
CN102505684BActive Publication Date: 2014-09-10HOHAI UNIV
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
HOHAI UNIV
Publication Date
2014-09-10

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Abstract

The invention discloses a hollow stiffness-core slurry-solidified discrete material pile and a construction method thereof. The periphery of a pile body is a slurry-solidified discrete material pile. The center of the pile body is a small-diameter prefabricated concrete pipe pile. Slurry filling holes are left on the pile wall of the prefabricated concrete pipe pile at intervals. Slurry enters discrete materials through holes in the middle of the concrete pipe pile and the slurry filling holes. Peripheral discrete materials are integrally cemented and solidified through cement slurry. At the same time, under the effect of slurry filling pressure, the slurry seeps into pile periphery soil bodies and the strength of the pile periphery soil is improved; the slurry fills the holes in the middle of the concrete pipe pile; and a prefabricated pipe pile can be formed by multiple sections which can be connected through bolts. The construction method comprises technical steps of: forming holes, placing the pipe pile, installing a sealing cover and a slurry filling pump, washing the holes by using clean wash, putting the discrete materials, filling the slurry, solidifying, forming the pile and the like. The hollow stiffness-core slurry-solidified discrete material pile and the construction method have the advantages that the construction processes are clear, the construction speed is fast, the pile forming effect is good, the bearing capacity is high, the manufacturing cost is low, the resources are fully utilized, the environment is protected and the energy is saved.
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Description

technical field

[0001] The invention belongs to the technical field of civil construction engineering, and in particular relates to a pile made of hollow core slurry and solid-dispersion material and a construction method thereof. Background technique

[0002] In the construction of roads, ports, bridges and other projects, pile foundations are widely used. The vertical bearing capacity of pile foundation is composed of pile side friction resistance and pile tip resistance. The play of pile side friction resistance is particularly important in deep soft soil foundation. How to improve the utilization rate of unit material strength and improve the bearing capacity of pile foundation while saving the amount of building materials is one of the important topics that researchers have been paying attention to for a long time. In addition, with the acceleration of urban construction in our country, a lot of construction waste such as abandoned bricks, stones, concrete blocks, and ...

Claims

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