CN201176592Y

CN201176592Y - Wrapping H-shaped pile toe

Info

Publication number: CN201176592Y
Application number: CNU2008200463520U
Authority: CN
Inventors: 徐醒华; 刘淑芬; 徐情根
Original assignee: DONGGUAN HUAYE CIVIL FOUNDATION ENGINEERING Co Ltd
Current assignee: DONGGUAN HUAYE CIVIL FOUNDATION ENGINEERING Co Ltd
Priority date: 2008-04-14
Filing date: 2008-04-14
Publication date: 2009-01-07
Anticipated expiration: 2018-04-14

Abstract

The utility model relates to an edge-coated I-shaped pile tip, which comprises a pile tip bottom board, an I-shaped reinforcing plate is protruded on the front end surface of the bottom board, and the edge of the bottom board is provided with an edge-coated structure, since the diameter of the edge-coated pile tip is bigger than a tubular pile, the edge-coated structure expands the earth piercing hole of the tubular pile, and meanwhile, instant friction force between the tubular pile and earth (a rock) is effectively reduced through utilizing the statute of limitation of time difference of contracting and recovering which exist in the tubular pile and earth (rock), thereby reinforcing the penetrating ability of the pile tip, and then pressing (beating) sand beds which are very thick and earth (rock) layers with small compressibility, lowering the energy consumption of piling, improving construction efficiency, and leading the pile tip to smoothly reach an ideal bearing stratum, simultaneously reducing the damage to the pile body in the process of construction, effectively reducing the vibration of a pipe machine and a field, and lowering the influence to other buildings and municipal utilities when in pressing (beating) piles. When the edge-coated I-shaped pile tip is particularly applied in limestone areas (karst areas), the edge-coated I-shpaed pile tip can reinforce the rock-socketed capacity of the pile tip, and effectively reduce the damage rate of beating (pressing) the pile tip.

Description

Bound edge h pile point

Technical field

The utility model relates to the working stake point of building pipe pile foundation, refers in particular to a kind of bound edge h pile point.

Background technology

Along with the development of modern city, super highrise building, large span factory building get more and more, and be also increasing, more and more darker in order to the basis of supporting these huge monsters.In foundation construction, in order to reduce labour intensity, enhance productivity, shorten the construction period, reduce engineering cost, to improve execution conditions, these large foundations are designed to mechanized construction degree height mostly, have the pile foundation of very big supporting capacity and good shock resistance.Usually need during construction to press (beating) to designing in the bearing stratum stake point, but in the real work, a lot of do not reach the design bearing stratum by pile tube; 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 usually with taper shape, cross in the majority, its stamping press in pressing little soil (rock) the layer process of (beating) layer of sand and compressibilty is little, can't Danone estimate the degree of depth, the stake point is difficult to reach the bearing stratum of ideal, so in work progress, there is hidden danger, so that the vertical bearing capacity of stake does not reach designing requirement, the bearing capacity of pile tube descends, also can cause other pile to be subjected to displacement, the accuracy of influence stake position, even pile tube fatigue too much appears because of the hammering number, phenomenons such as cracking have a strong impact on workmanship, particularly to settlement request comparatively strict highrise building and other structure.

The utility model content

The utility model is at the defective of prior art existence, main purpose provides a kind of bound edge h pile point, it has stronger penetration power, can press (beating) to wear very thick layer of sand and little soil (rock) layer of compressibilty, make the stake point reach desirable bearing stratum smoothly, reduce the damage of work progress simultaneously pile body.

For achieving the above object, the utility model adopts following technical scheme:

A kind of bound edge h pile point comprises the sharp base plate of stake, convexes with three gussets on this base plate front end face, wherein, first gusset and second gusset are parallel to each other, and the 3rd gusset is vertically connected between aforementioned two gussets and is combined to form the I-shaped shape, and the rim of base plate is provided with binding structure.

Described bound edge and base plate are conjoined structure.

Described bound edge extends to form the ccontaining cavity that is useful on ccontaining pile body towards the rear end face of base plate.

The horizontal external diameter of described bound edge is greater than the tubular pile body external diameter.

The root of described the 3rd gusset both sides respectively is provided with a ribs, and oblique the taking of this ribs is against between base plate and the 3rd gusset.

The two side ends of described ribs extends to the inner surface of first gusset and second gusset always.

Be provided with plurality of grooves separately on the end face of described first gusset, second gusset and the 3rd gusset.

Described groove is the shape of triangle.

The utility model is compared with technology with existing, its beneficial effect is, by the H pile point in conjunction with binding structure, because bound edge stake point diameter is bigger than pile tube, binding structure has enlarged the aperture of burying of pile tube, utilize the ageing of time difference of exist to shrink recovering in pile tube and the soil (rock) simultaneously, effectively reduce the moment frictional force between pile tube and soil (rock), thereby strengthen the penetration capacity of stake point, can press (beating) to wear very thick layer of sand and little soil (rock) layer of compressibilty thereupon, reduce the piling energy consumption, improve efficiency of construction, make the stake point can arrive desirable bearing stratum smoothly, reduce in the work progress damage simultaneously pile body, also can effectively reduce the vibrations in a machine and place, when reduce pressing (beating) during stake to the influence of other buildings and urban operating mechanism.When especially this bound edge h pile point was applied to limestone area (karst area), the embedding rock ability that it can strengthen the stake point effectively reduced the breakage rate of playing (pressure) stake.

Description of drawings

Fig. 1 is the three-dimensional diagrammatic sketch of first kind of embodiment of the utility model;

Fig. 2 is the sectional view of first kind of embodiment of the utility model;

Fig. 3 is the right diagrammatic sketch of Fig. 2;

Fig. 4 is the sectional view of second kind of embodiment of the utility model;

Fig. 5 is the right diagrammatic sketch of Fig. 4.

The accompanying drawing identifier declaration:

10, stake point 11, base plate

12a, the first gusset 12b, second gusset

12c, the 3rd gusset 13, bound edge

14, ccontaining cavity 15, ribs

20, pile body 16, groove

The specific embodiment

The utility model is described in further detail below in conjunction with accompanying drawing and specific embodiment:

Show the concrete structure of the embodiment of the utility model referring to figs. 1 through Fig. 3, include stake point 10 and pile body 20, this point 10 includes base plate 11, convex with three

gusset

12a, 12b, 12c on the front end face of base plate 11, wherein the first gusset 12a and the second gusset 12b are parallel to each other, and the 3rd gusset 12c is vertically connected between aforementioned two gusset 12a, the 12b and is combined to form the I-shaped shape.The root of the 3rd gusset 12c both sides respectively is provided with a ribs 15, and these ribs 15 oblique taking are against between base plate 11 and the 3rd gusset 12c, and the two side ends of this ribs 15 extends to the inner surface of the first gusset 12a and the second gusset 12b always.

The rim of base plate 11 is extended with binding structure 13 towards its rear end direction one in addition, and this binding structure 13f extends towards the rear end face of stake point 10, and forms a ccontaining cavity 14 on rear end face.The top end face of this pile body 20 relies on after the stake point 10 on the end face, and is embedded in this ccontaining cavity 14.

With reference to Fig. 2, the horizontal external diameter of the bound edge 13 of described stake point 10 is greater than L size of tubular pile body 20 external diameters, can reduce moment frictional force between pile tube 10 and the stake sharp 20 by this bound edge 13.

With reference to Fig. 4 and Fig. 5 is second kind of embodiment of the utility model, and the difference of present embodiment and last embodiment is to be provided with a plurality of triangular grooves 16 separately on the end face of this first gusset 12a, the second gusset 12b and the 3rd gusset 12c.

Of the present utility model focusing on, by the h pile point in conjunction with binding structure, because bound edge stake point diameter is bigger than pile tube, binding structure has enlarged the aperture of burying of pile tube, utilize the ageing of time difference of exist to shrink recovering in pile tube and the soil (rock) simultaneously, effectively reduce the moment frictional force between pile tube and soil (rock), thereby strengthen the penetration capacity of stake point, can press (beating) to wear very thick layer of sand and little soil (rock) layer of compressibilty thereupon, reduce the piling energy consumption, improve efficiency of construction, make the stake point can arrive desirable bearing stratum smoothly, reduce simultaneously in the work progress the damage of pile body, also can effectively reduce the vibrations in a machine and place, when reducing stake when pressing (beating) to the influence of other buildings and urban operating mechanism.When especially this bound edge h pile point was applied to limestone area (karst area), the embedding rock ability that it can strengthen the stake point effectively reduced the breakage rate of playing (pressure) stake.

The above only is the preferred embodiment of a kind of bound edge h pile of the utility model point, is 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 h pile point, comprise the sharp base plate of stake, it is characterized in that: convex with three gussets on this base plate front end face, wherein, first gusset and second gusset are parallel to each other, the 3rd gusset is vertically connected between aforementioned two gussets and is combined to form the I-shaped shape, and the rim of base plate is provided with binding structure.

2, bound edge h pile point according to claim 1, it is characterized in that: described bound edge and base plate are conjoined structure.

3, bound edge h pile point according to claim 2 is characterized in that: described bound edge extends to form the ccontaining cavity that is useful on ccontaining pile body towards the rear end face of base plate.

4, bound edge h pile point according to claim 3, it is characterized in that: the horizontal external diameter of described bound edge is greater than the tubular pile body external diameter.

5, bound edge h pile point according to claim 1, it is characterized in that: the root of described the 3rd gusset both sides respectively is provided with a ribs, and oblique the taking of this ribs is against between base plate and the 3rd gusset.

6, bound edge h pile point according to claim 5, it is characterized in that: the two side ends of described ribs extends to the inner surface of first gusset and second gusset always.

7, bound edge h pile point according to claim 1 is characterized in that: be provided with plurality of grooves separately on the end face of described first gusset, second gusset and the 3rd gusset.

8, bound edge h pile point according to claim 1, it is characterized in that: described groove is the shape of triangle.