CN214656947U

CN214656947U - PETRFRP concrete pile with drainage function

Info

Publication number: CN214656947U
Application number: CN202120514785.XU
Authority: CN
Inventors: 鹿群; 王雪松
Original assignee: Tianjin Chengjian University
Current assignee: Tianjin Chengjian University
Priority date: 2021-03-11
Filing date: 2021-03-11
Publication date: 2021-11-09
Anticipated expiration: 2031-03-11

Abstract

A PETPRP concrete pile with a drainage function comprises a concrete inner core, a PETPRP sleeve and a polyester non-woven fabric layer, wherein the concrete inner core is a cylindrical concrete solid pile, the PETPRP sleeve is fixedly sleeved on the circumferential outer wall of the concrete inner core, and the non-woven fabric layer is wound on the circumferential outer wall of the PETPRP sleeve; the PETPRP sleeve is a hollow pipe, the circumferential inner wall of the hollow pipe is fixedly connected on the circumferential inner wall of the concrete inner core in an embracing mode, and a plurality of drainage convex ribs which extend axially and are circumferentially distributed at intervals are manufactured on the outer wall of the hollow pipe. The concrete pile is made of cheap and environment-friendly composite materials, provides a drainage function for the traditional concrete pile, prevents soil from liquefying and reduces adverse effects caused by the soil squeezing effect of the pile.

Description

PETRFRP concrete pile with drainage function

Technical Field

The utility model relates to a civil engineering technical field specifically is a PETRFRP concrete pile with drainage function.

Background

The pile foundation has wide application in engineering, and is divided into concrete piles, steel piles and composite material piles according to the pile body materials. The reinforced concrete pile is the most widely used pile foundation at present, has the advantages of convenient manufacture, high pile body strength, lower price and the like, and can be divided into a precast concrete square pile, a prestressed concrete hollow pipe pile, a cast-in-place concrete pile and the like. The steel pile is composed of a steel pipe pile and a section steel pile, the pile body is high in material strength, large in surface area and small in sectional area, penetration capacity is high during pile sinking, soil squeezing influence is small, influence on adjacent buildings can be reduced in a saturated soft clay area, the steel pile is high in price and poor in corrosion resistance, and application is limited to a certain extent.

With the continuous emergence of new materials, the mode of combining high-performance materials with traditional materials is creatively applied to basic engineering. However, the existing composite material pile does not have the drainage function, so that a composite material concrete precast pile with the drainage function needs to be designed urgently.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art's weak point, provide a PETPRP concrete pile with drainage function, this concrete pile adopts the combined material of low price and environmental protection, for traditional concrete pile provides the drainage function, prevents the soil body liquefaction and reduces the harmful effects that the crowded soil effect of stake brought.

A PETPRP concrete pile with a drainage function comprises a concrete inner core, a PETPRP sleeve and a polyester non-woven fabric layer, wherein the concrete inner core is a cylindrical concrete solid pile, the PETPRP sleeve is fixedly sleeved on the circumferential outer wall of the concrete inner core, and the non-woven fabric layer is wound on the circumferential outer wall of the PETPRP sleeve; the PETPRP sleeve is a hollow pipe, the circumferential inner wall of the hollow pipe is fixedly connected on the circumferential inner wall of the concrete inner core in an embracing mode, and a plurality of drainage convex ribs which extend axially and are circumferentially distributed at intervals are manufactured on the outer wall of the hollow pipe.

And the convex edges of the drainage divide the space between the circumferential outer wall of the hollow pipe and the circumferential inner wall of the non-woven fabric layer into a plurality of drainage areas, and the convex direction of the convex edges of the drainage is vertical to the tangential direction of the hollow pipe.

Moreover, the height of the hollow pipe protruding from the drainage convex ridges is 2mm, and the distance between every two adjacent drainage convex ridges is 2-3 mm.

The utility model has the advantages and the technical effect be:

1. the utility model discloses a PETPRP concrete pile with drainage function on the basis that has the combined material stake, adopts the PETPRP material that retrieves old plastics and come to make the stake sleeve pipe, has embodied green's advantage. 2. The utility model discloses the PETRFRP sleeve pipe that adopts not only has traditional combined material's advantages such as longe-lived, corrosion-resistant, and its tensile deformability is more superior than traditional combined material moreover. 3. The utility model discloses the restrictive action of PEFRP sleeve pipe that adopts has greatly improved concrete inner core intensity, ductility and energy dissipation ability. 4. The utility model discloses a cost is compared in traditional reinforced concrete pile comparatively cheap. 5. The utility model discloses a drainage function can discharge the pore water in the ground soil body, reduces the pore water pressure in the soil body and reduces the crowded soil effect of stake and to neighbouring building and pipeline's adverse effect. 6. The utility model discloses a PETPFRP sleeve pipe can realize recycling through retrieving the shaping again with the stake sleeve pipe after treating the stake abandonment.

Drawings

Fig. 1 is a perspective view of the present invention;

fig. 2 is a cross-sectional view of the present invention;

fig. 3 is a top view of the present invention;

in the figure: 1-a concrete inner core; 2-PETWFRP sleeve; 3-a nonwoven fabric layer; 4-drainage convex edges.

Detailed Description

For further understanding of the contents, features and effects of the present invention, the following embodiments will be exemplified in conjunction with the accompanying drawings. It should be noted that the present embodiment is illustrative, not restrictive, and the scope of the invention should not be limited thereby.

A PETPRP concrete pile with a drainage function comprises a concrete inner core 1, a PETPRP sleeve 2 and a terylene non-woven fabric layer 3, wherein the concrete inner core is a cylindrical concrete solid pile, the PETPRP sleeve is fixedly sleeved on the circumferential outer wall of the concrete inner core, and the non-woven fabric layer is wound on the circumferential outer wall of the PETPRP sleeve; the PETPRP sleeve is a hollow pipe, the circumferential inner wall of the hollow pipe is fixedly connected on the circumferential inner wall of the concrete inner core in an embracing mode, and a plurality of drainage convex ribs 4 which extend axially and are distributed at intervals in the circumferential direction are manufactured on the outer wall of the hollow pipe.

To more clearly illustrate the embodiments of the present invention, an example is provided below:

the PETRP concrete pile with the drainage function comprises a PETRP sleeve and a concrete inner core, wherein the outer part of the PETRP sleeve is made into a plastic drainage belt structure, the outer part of the PETRP sleeve is composed of radial linear protruding structures with the same interval from the top surface of the pile, a terylene non-woven fabric layer is surrounded on the outer part of the PETRP sleeve, the cross section of the sleeve is in a harmonica shape, and a plurality of fine drainage channels are arranged on the outer side of the sleeve. In the service process, the pile side can drain soil around the pile from bottom to top.

As shown in figures 1-3, the structure of the water-draining PETWFRP concrete pile comprises a concrete core, a PETWFRP sleeve and a terylene non-woven fabric layer from inside to outside in sequence.

The utility model discloses a construction order is:

1. sheathing the drainage PETWFRP concrete pile with a steel sleeve;

2. pressing the pile and the steel sleeve into the ground;

3. lifting and pulling out the steel sleeve;

4. completing construction;

the utility model discloses on the basis of current combined material stake, through using environmental protection material PET and change stake sleeve pipe outside shape, form drainage PETPFRP concrete pile. Found through experimental study, the utility model discloses can carry out the drainage of the stake side soil body, can prevent effectively that the soil body liquefaction from reducing the influence of stake to closing on building and pipeline.

The parts of the utility model which are not described all adopt the mature products and the mature technical means in the prior art.

It will be understood that modifications and variations can be made by persons skilled in the art in light of the above teachings and all such modifications and variations are considered to be within the scope of the invention as defined by the following claims.

Claims

1. The utility model provides a PEFRP concrete pile with drainage function which characterized in that: the concrete core is a cylindrical concrete solid pile, the PETPRP sleeve is fixedly sleeved on the circumferential outer wall of the concrete core, and the non-woven fabric layer is wound on the circumferential outer wall of the PETPRP sleeve; the PETPRP sleeve is a hollow pipe, the circumferential inner wall of the hollow pipe is fixedly connected to the circumferential inner wall of the concrete core in an embracing mode, and a plurality of drainage convex ribs which extend axially and are circumferentially distributed at intervals are manufactured on the outer wall of the hollow pipe.

2. The PEFRP concrete pile with the water drainage function as claimed in claim 1, wherein: the convex edges of the drainage divide the circumferential outer wall of the hollow pipe and the circumferential inner wall of the non-woven fabric layer into a plurality of drainage areas, and the convex direction of the convex edges of the drainage is vertical to the tangential direction of the hollow pipe.

3. The PEFRP concrete pile with the drainage function as claimed in claim 2, wherein: the height of the drainage convex arris protruding hollow pipe is 2mm, and the distance between two adjacent drainage convex arris is 2-3 mm.