CN202466568U

CN202466568U - Novel hollow square pile with crossed grooves or bulges and ribs on surfaces

Info

Publication number: CN202466568U
Application number: CN 201220070255
Authority: CN
Inventors: 程伟明; 高军峰; 杨末丽
Original assignee: Shanghai Zhongji Pile Industry Co Ltd
Current assignee: Shanghai Zhongji Pile Industry Co Ltd
Priority date: 2012-02-28
Filing date: 2012-02-28
Publication date: 2012-10-03
Anticipated expiration: 2022-02-28

Abstract

The utility model provides a novel hollow square pile with crossed grooves or bulges and ribs on surfaces, and belongs to the field of buildings. The novel hollow square pile is characterized in that a concrete structure with the crossed grooves or bulges and ribs is formed on the surfaces of a pile body, the cross section of the novel hollow square pile is square, a middle hollow part is circular, and the structure with the grooves or the bulges and the ribs can be various regular or irregular polygons such as circular arcs, triangles and rectangles. By the novel hollow square pile, the bearing capacity of a single pile and particularly a friction pile can be greatly improved, and materials can be saved.

Description

A kind of surface band groove or protruding crisscross novel hollow side with ribbing stake

Technical field

The utility model relates to a kind of side's stake, particularly relates to a kind of surface band groove or protruding crisscross novel hollow side with ribbing stake.

Background technology

Present construction along with urbanization; High-rise and super highrise building increasing; Requirement for bearing capacity to pile foundation is also increasingly high; The bearing capacity of pile foundation and resistance to plucking ability also become increasingly conspicuous, and the preformed pile basis of using at present mainly contains end bearing pile and two kinds of forms of friction pile, particularly mainly lean on the frictional force of pile body surface and soil layer that the pile foundation of vertical bearing capacity is provided for Piles for Friction Piles; Ganoid preformed pile generally using at present is unfavorable for improving the frictional force between pile body and the soil layer; For end bearing pile, though be stake end as bearing capacity, pile body is because be smooth and can not better utilization.

The utility model content

To the problems referred to above, the main purpose of the utility model is to provide a kind of surface band groove or protruding crisscross novel hollow side with ribbing stake that can increase substantially bearing capacity of single pile.

The utility model solves above-mentioned technical problem through following technical proposals: a kind of surface band groove or protruding crisscross hollow square pile with ribbing; Said side's stake comprises concrete pile body and interior reinforcing bar thereof, and pile body surface is prefabricated into crisscross groove or protruding concrete structure with ribbing along pile body stake length direction; Cross section is square, and hollow parts is circular; Groove or protruding number of structures with ribbing are several.

In the practical implementation example of the utility model, said pile body surface groove or the protruding triangle that is shaped as with ribbing.

In the practical implementation example of the utility model, said pile body surface groove or protruding with ribbingly be shaped as squarely, and square angle is curved.

In the practical implementation example of the utility model, said pile body surface groove or protruding with ribbing be shaped as trapezoidal.

The positive progressive effect of the utility model is: the concrete hollow square pile that the utility model provides has the following advantages: surface band groove that the utility model proposes or protruding crisscross novel hollow side with ribbing stake at vertical fluted or protruding concrete structure with ribbing, have increased the contact area of pile body and soil layer; Increased side friction; Simultaneously, because pile body surface has transverse concave groove or protruding with ribbing, make this position also possess the function of end bearing pile; The two combines to have increased greatly the vertical bearing capacity of single pile; Can effectively reduce the quantity that lays out pile, thereby reduce the cost of pile foundation, have great economic benefit and environmental benefit.

Description of drawings

Fig. 1 is a kind of structural representation of the utility model.

Fig. 2 is the vertical view for Fig. 1.

The specific embodiment

Provide the utility model preferred embodiment below in conjunction with accompanying drawing, to specify the technical scheme of the utility model.

Fig. 1 is a kind of structural representation of the utility model; As shown in Figure 1: visible a kind of surface band groove or protruding crisscross novel hollow side with ribbing stake among the figure according to the utility model; This hollow square pile has the cross section that is square substantially, has the square through hole 2 that runs through whole hollow square pile along hollow square pile stake length direction.

Equally along the long y direction of hollow square pile stake; Be formed with a plurality of grooves that are arranged in parallel 3 and protruding 4 concrete structures with ribbing on 4 surfaces of hollow square pile; The groove or the protruding concrete structure with ribbing that also have some flat patterns to arrange along surface perpendicular to the long y direction of hollow square pile stake; These grooves 3 or protruding 4 planforms with ribbing are triangle, isosceles triangle, square, semicircle (circular arc) shape, different shape such as trapezoidal at right angles; Each angle of protruding 4 structures with ribbing can be curved, helps structure and be not damaged.

Fig. 2 is the vertical view for Fig. 1, and is as shown in Figure 2, and groove or protruding structure with ribbing are on distributing; Should be with groove or protruding structure with ribbing near the single face intermediate arrangement, and each groove or protruding structure with ribbing should equidistantly distribute, depth of groove should not be greater than 30mm; Protruding structural thickness with ribbing should not be greater than 40mm; The broadband is more suitable with 20～50, and simultaneously, the width of groove or protruding structure with ribbing should be greater than spacing width.

In making the cancavo-convex foreign side of this novel surface, during square concrete hollow square pile, can adopt core vibrations or centrifuging process moulding, two kinds of moulding process can both guarantee that strength grade of concrete is applicable to that various engineerings are with stake.

This utility model increases the pile body perimeter of section because of surface longitudinal has groove or protruding crisscross structure with ribbing, has increased the contact area with soil layer; Thereby increased the limit side friction of stake in soil layer; Transverse concave groove or protruding structure with ribbing are equivalent to have the effect of end load because of with soil layer more contact area being arranged simultaneously, have increased vertical bearing capacity of single pile greatly; This utility model hollow square pile can be used in aspects such as pressure bearing pile, uplift pile, bracing of foundation pit stake; Can reduce the pile foundation engineering cost, practice thrift concrete and amount of reinforcement, have higher economic benefits and environmental protection effect.

More than show and described basic principle of the utility model and the advantage of principal character and the utility model.The technician of the industry should understand; The utility model is not restricted to the described embodiments; The principle of describing in the foregoing description and the manual that the utility model just is described, under the prerequisite that does not break away from the utility model spirit and scope, the utility model also has various changes and modifications; These variations and improvement all fall in the utility model scope that requires protection, and the utility model requires protection domain to be defined by appending claims and equivalent thereof.

Claims

1. groove or protruding crisscross hollow square pile with ribbing are with in a surface, and said side's stake comprises concrete pile body and interior reinforcing bar thereof, it is characterized in that: pile body surface is prefabricated into crisscross groove or protruding concrete structure with ribbing along pile body stake length direction; Cross section is square, and hollow parts is circular; Groove or protruding number of structures with ribbing are several.

2. surface according to claim 1 band groove or protruding crisscross hollow square pile with ribbing is characterized in that: said pile body surface groove or the protruding triangle that is shaped as with ribbing.

3. band groove in surface according to claim 1 or protruding crisscross hollow square pile with ribbing is characterized in that: said pile body surface groove or protrudingly with ribbingly be shaped as squarely, and square angle is curved.

4. band groove in surface according to claim 1 or protruding crisscross hollow square pile with ribbing is characterized in that: said pile body surface groove or protruding with ribbing be shaped as trapezoidal.