CN2918540Y

CN2918540Y - Edged pyramid pile tip

Info

Publication number: CN2918540Y
Application number: CN 200620060789
Authority: CN
Inventors: 徐醒华; 徐情根; 刘淑芬
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-06-26
Filing date: 2006-06-26
Publication date: 2007-07-04
Anticipated expiration: 2016-06-26

Abstract

The utility model discloses a wrapping pyramid pile toe, comprising a bottom plate of the pile toe and a cone arranged on the bottom plate of the pile toe; the cone comprises a plurality of side panels and takes the shape of a pyramid; a wrapping structure is arranged following the peripheral hem convexity of the bottom plate of the pile toe; under the coactions of the cone of the pyramid and the wrapping structure arranged on the peripheral hem convexity of the bottom plate, the instant friction between the tubular pile and the pile toe can be reduced, enabling the penetrating power of the pile toe to enhance, then the sand layer large in thickness and the earth (rock) layer minor in compressibility is penetrated by pressing (beating), which can reduce the piling dissipation of energy, improve the operating efficiency and make the pile toe reach the perfect supporting course smoothly. Furthermore, the damage to the pile body can be decreased under construction, the tremble of the ram machine and ground can be effectively decreased, the influence on other buildings and urban facilities can be decreased in the case of beating (pressing). The utility model is simple in structure and strong in practicability.

Description

A kind of bound edge pyramid stake point

Technical field

The utility model relates to the working stake point of building pipe pile foundation, is meant a kind of bound edge pyramid stake point especially.

Background technology

Along with developing rapidly of construction business, prestressing force reinforced concrete pile tube is used widely in the Foundation Design of building; General after soil layer and pile body embedded depth are determined, need usually during construction to press (beating) to designing in the bearing stratum stake point, but in the real work by pile tube, much do not reach the design bearing stratum; Yet, estimate and the desirable degree of depth also need depend on the design of stake point in order to guarantee that pile tube can reach.Traditional stake point is in the majority with taper shape usually, and its stamping press in pressing little soil (rock) the layer process of (beating) layer of sand and compressibilty is little, can't reach the expectation degree of depth; Simultaneously, consult disclosed a kind of of Chinese patent CN2501914Y again and build the square cone-shaped pile point that pipe pile foundation is used, wherein by installing crossed stiffened plate on the plate of stake pinnacle, and the base of the sharp side plate of stake joins with stake pinnacle plate, side then joins with the crossed stiffened plate side, though it strengthens certain impact force to some extent, but for little soil (rock) layer of very thick layer of sand and compressibilty, the also difficult bearing stratum that arrives ideal of stake point, so in work progress, have hidden danger, so that the vertical bearing capacity of stake does not reach designing requirement.

The utility model content

The utility model is at above-mentioned the deficiencies in the prior art, main purpose is to provide a kind of bound edge pyramid stake point, it reduces pile tube and the sharp moment frictional force of stake effectively, and has the strong effect of penetration capacity, can make a point more successfully arrive the bearing stratum of ideal; Reduce the damage of work progress simultaneously to pile body.

For realizing above-mentioned purpose, the utility model is taked following technical scheme:

A kind of bound edge pyramid stake point comprises a sharp base plate and is arranged at the cone of stake on the sharp base plate that described cone is made of jointly the polylith side plate, and is pyramid-shaped; Periphery along the sharp base plate of stake convexes with binding structure.

Described side plate is 4 to 6.Described side plate shape triangular in shape.

The horizontal internal diameter of described bound edge is greater than the tubular pile body external diameter, and and tubular pile body between have the slit.

The utility model compared with prior art, beneficial effect is to reduce pile tube and the sharp moment frictional force of stake effectively, thereby strengthen the penetration capacity of stake point, it is very thick in layer of sand and little soil (rock) layer of compressibilty to press (beating) to wear thereupon, reduce the piling energy consumption, improve efficiency of construction, and can make the stake point can arrive desirable bearing stratum smoothly, reduce the damage of work progress simultaneously to pile body, can reduce the vibrations in a machine and place effectively, when reduce pressing (beating) to the influence of other buildings and urban operating mechanism.

Description of drawings

Fig. 1 is the utility model surface structure schematic diagram;

Fig. 2 is the utility model side-looking structural representation;

Fig. 3 is that the utility model is faced structural representation;

Fig. 4 is the side-looking structural representation that the utility model cooperates tubular pile body.

The drawing reference numeral explanation:

1, the sharp base plate 2 of stake, cone 3, side plate 4, bound edge 5, tubular pile body

The specific embodiment

Below in conjunction with drawings and Examples the utility model is further specified.

See also Fig. 1 to shown in Figure 3, a kind of bound edge pyramid stake point comprises a sharp base plate 1 and is arranged at cone 2 on the sharp base plate 1 of stake that described cone 2 is interconnected by 6 blocks of side plates 3 and forms, each side plate 3 shape triangular in shape, and this cone 2 is the hexagonal pyramid shape; Periphery along the sharp base plate 1 of stake convexes with bound edge 4 structures, can reduce the moment frictional force of pile tube and stake point by this bound edge 4, simultaneously an infiltration at the bottom of perfusion C30 concrete 1 to 2m at the bottom of the stake also can prevent.Again as shown in Figure 4, described bound edge 2 horizontal internal diameter R1 are greater than tubular pile body 5 external diameter R2, and and tubular pile body 5 between have slit L1.

The utility model design focal point is under the acting in conjunction of the binding structure that is convexly equipped with by the cone of pyramid-shaped and base plate periphery, can reduce pile tube and the sharp moment frictional force of stake, the sharp penetration capacity of stake is strengthened, press (beating) to penetrate very thick sand bed and little soil (rock) layer of compressibilty thereupon, reduce the piling energy consumption, improve efficiency of construction, and can make the stake point can arrive desirable bearing stratum smoothly.In addition, can also reduce the damage of pile body in construction, reduce the vibrations in stake machine and place effectively, when reducing piling to the influence of other buildings and urban operating mechanism.The utility model is simple in structure, practical.

In sum, it only is the preferred embodiment of the utility model bound edge pyramid stake point, be not that technical scope of the present utility model is imposed any restrictions, so every foundation technical spirit of the present utility model all still belongs in the scope of technical solutions of the utility model any trickle modification, equivalent variations and modification that above embodiment did.

Claims

1, a kind of bound edge pyramid stake point comprises a sharp base plate and is arranged at the cone of stake on the sharp base plate that it is characterized in that: described cone is formed by polylith side plate common combination, and is pyramid-shaped; Periphery along the sharp base plate of stake convexes with binding structure.

2, according to the described a kind of bound edge pyramid stake point of claim 1, it is characterized in that: described cone is that 4 to 6 blocks of side plates interconnect and form.

3, according to the described a kind of bound edge pyramid stake point of claim 2, it is characterized in that: described side plate shape triangular in shape.

4, according to the described a kind of bound edge pyramid stake point of claim 1, it is characterized in that: the horizontal internal diameter of described bound edge is greater than the tubular pile body external diameter, and and tubular pile body between have the slit.