CN217325345U - PHC tubular pile shoe - Google Patents

Abstract

The utility model provides a PHC tubular pile shoe, including tubular pile shoe main part and pile head end plate, the rear end of pile shoe main part passes through the pile head end plate and is connected with the PHC tubular pile, evenly is equipped with a plurality of vertical floor on its lateral wall, and the rear end and the pile head end plate of vertical floor are connected, and the front end of pile shoe main part is equipped with a plurality of triangle-shaped boards along its circumference, and a limit setting of triangle-shaped board is on the front end of pile shoe main part. The utility model discloses its rigidity is big, intensity is high, broken rock ability reinforce, and pile sinking in-process pile body stress is little, total hammering number is low, make the stake point reach the design elevation more easily, is applicable to have hard intermediate layer, holding power layer for geological conditions such as morals and manners rock stratum, local boulder.

Description

PHC tubular pile shoe

Technical Field

The utility model belongs to the technical field of the PHC tubular pile, especially, relate to a PHC tubular pile shoe.

Background

The PHC tubular pile has the characteristics of high single-pile bearing capacity, convenience in pile extension, good durability, high bending rigidity, lower manufacturing cost than a steel pipe pile and the like, and is widely applied to various types of engineering. The PHC tubular pile is a part of soil-extruding pile, the penetration performance of the PHC tubular pile is weaker than that of a steel pipe pile with the same diameter, the stress value of a pile body is not too large in the pile sinking process, the PHC tubular pile is difficult to penetrate through a hard soil layer, the pile sinking depth is not too large, and the like, so that pile shoes are required to be arranged in the pile sinking process to enhance the penetration performance of foundation piles and reduce the hammering number. The pile shoe is welded at the tip of the PHC tubular pile and enters a soil layer along with the pile body, so that the stress value of the pile body in the pile sinking process is reduced, the probability of damage of the pile body is greatly reduced, and the pile shoe can enter a bearing layer with higher hardness. The pile shoe commonly used in the engineering industry is a common steel casing, has weak penetration capability to a hard layer, and is easy to have the quality problems that the pile head bursts or the pile body cracks due to overlarge pile body stress in the process of penetrating through the hard layer and a rock stratum when meeting the phenomenon that a geological hard soil layer is usually small in penetration degree and high in hammering number. With the development of economy, the longer the pile length and the larger the pile diameter of the required PHC tubular pile, and the development of pile foundation engineering is difficult to satisfy by the traditional common pile shoe form.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a PHC tubular pile shoe, its rigidity is big, intensity is high, broken rock ability is strong, pile body stress is little, total hammering number is low, make the stake point reach the design elevation more easily among the pile sinking process, is applicable to have hard intermediate layer, hold the layer and be geological conditions such as morals and manners rock stratum, local boulder.

The utility model discloses a realize through following technical scheme:

the utility model provides a PHC tubular pile shoe, includes tubular pile shoe main part and pile head end plate, the rear end of pile shoe main part passes through the pile head end plate to be connected with the PHC tubular pile, evenly is equipped with a plurality of vertical floor on its lateral wall, the rear end and the pile head end plate of vertical floor are connected, the front end of pile shoe main part is equipped with a plurality of triangle-shaped boards along its circumference, an edge setting of triangle-shaped board is on the front end of pile shoe main part.

Further, the longitudinal rib plates comprise a plurality of first longitudinal rib plates and a plurality of second longitudinal rib plates, the first longitudinal rib plates and the second longitudinal rib plates are alternately arranged, the length of the first longitudinal rib plates is smaller than that of the second longitudinal rib plates, the number of the second longitudinal rib plates is equal to that of the triangular plates, the second longitudinal rib plates are in one-to-one correspondence with the triangular plates, the second longitudinal rib plates are connected with the corresponding triangular plates, and the front ends of the second longitudinal rib plates are flush with the front ends of the corresponding triangular plates.

Further, the triangular plate is of an arc-shaped structure, and the arc radius of the triangular plate is the same as that of the pile shoe main body.

Further, two adjacent triangular plates are connected with each other.

Further, the adjacent longitudinal rib plates are connected through a steel plate, the rear end of the steel plate is obliquely arranged on the edge of the pile head end plate, and the front end of the steel plate is arranged on the pile shoe main body.

Further, the inclination angle of the steel plate and the pile head end plate is 45 degrees.

Furthermore, the longitudinal rib plate comprises a rectangular section and a right-angled trapezoid section, the rear end of the rectangular section is connected with the pile head end plate, the front end of the rectangular section is connected with the bottom of the right-angled trapezoid section, and the straight waist of the right-angled trapezoid section is connected with the pile shoe main body.

Further, the pile shoe further comprises a reinforcing hoop, and the reinforcing hoop is arranged on the outer side wall of the front end of the pile shoe main body.

Further, the reinforcing hoop is formed by welding two semicircular rings.

Further, the pile head end plate is the loop configuration, the external diameter of pile head end plate is the same with the external diameter of PHC tubular pile, its internal diameter with the internal diameter of PHC tubular pile is the same, the external diameter of pile shoe main part is less than the external diameter of pile head end plate 5-7 cm.

Compared with the prior art, the beneficial effects of the utility model are that: the front end of the pile shoe main body is provided with the plurality of triangular plates which are distributed in a zigzag manner, so that the rock breaking capacity of the pile shoe main body is enhanced, when the plurality of triangular plates distributed in the zigzag manner contact with large stones in the geology such as a hard interlayer, a weathered rock stratum, boulders and the like, the rocks are more easily broken, the large stones are broken into small broken stones, the large stones are prevented from rushing into the PHC pipe pile to form penetration blockage in the pile sinking process, the PHC pipe pile performance can be improved, the stress value in the pile sinking process of the pile body is reduced, the PHC pipe pile can more easily penetrate through the hard interlayer, the rock stratum, the boulders and the like, the pile body is ensured to sink vertically downwards, the bending of the pile body is avoided, the deviation of the pile body is reduced, the horizontal acting force of the pile body in the pile sinking process is reduced, meanwhile, the large stones are broken into small broken stones, the pile end resistance can be reduced, the phenomena of penetration speed reduction, the pile sinking difficulty, the pile body cracking and the like are avoided, the construction quality of the pile body is ensured; in addition, the outer side wall of the pile shoe main body is provided with a plurality of longitudinal rib plates, so that the integral rigidity of the pile shoe main body is enhanced, and the friction force of pile side soil to the pile shoe main body in the pile sinking process of the pile shoe main body is reduced.

Drawings

Fig. 1 is a schematic structural view of the PHC pile shoe of the present invention;

fig. 2 is a cross-sectional view of the PHC pile shoe of the present invention.

In the figure, 1-pile shoe main body, 2-pile head end plate, 3-longitudinal rib plate, 31-rectangular section, 32-right-angle trapezoidal section, 4-triangular plate, 5-steel plate and 6-reinforcing hoop.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. Meanwhile, in the description of the present invention, the terms "first", "second", and the like are used only for distinguishing the description, and are not to be construed as indicating or implying relative importance.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the utility model is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element to be referred must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

Referring to fig. 1 and 2, fig. 1 is a schematic structural view of the PHC pile shoe of the present invention, and fig. 2 is a cross-sectional view of the PHC pile shoe of the present invention. A PHC tubular pile shoe comprises a tubular pile shoe main body 1 and a pile head end plate 2, wherein the rear end of the pile shoe main body 1 is connected with a PHC tubular pile through the pile head end plate 2, a plurality of longitudinal rib plates 3 are uniformly arranged on the outer side wall of the pile shoe main body, the rear ends of the longitudinal rib plates 3 are connected with the pile head end plate 2, a plurality of triangular plates 4 are arranged at the front end of the pile shoe main body 1 along the circumferential direction of the pile shoe main body, and one edge of each triangular plate 4 is arranged at the front end of the pile shoe main body 1.

The utility model discloses set up a plurality of triangle-shaped plates 4 at the front end of pile shoe main part 1, a limit setting of triangle-shaped plate 4 is on the front end of pile shoe main part 1, and a angle of triangle-shaped plate 4 is at overall structure's front end promptly to make a plurality of triangle-shaped plates 4 be the cockscomb structure and distribute. The setting of the triangular plate 4 that the cockscomb structure distributes is meetting geology such as hard intermediate layer, morals and manners stratum, boulder, and after the most advanced of triangular plate 4 touched the bold stone, pierce the bold stone more easily in, broken into the littlestone with the bold stone, can reduce stake end resistance, avoided appearing the penetration speed and fall, and pile sinking difficulty, phenomenons such as pile body fracture have strengthened the broken rock ability of pile shoe main part 1. Meanwhile, large stones are crushed into small stones, so that the large stones can be prevented from rushing into the PHC tubular pile to form blockage in the pile sinking process, the penetrating performance of the PHC tubular pile can be improved, the stress value of the pile body in the pile sinking process is reduced, the PHC tubular pile can more easily penetrate through a hard interlayer, a weathered rock stratum, a boulder and the like, the pile body is ensured to sink vertically downwards, the pile body is prevented from being bent, the deviation of the pile body is reduced, the horizontal acting force of the pile body in the pile sinking process is reduced, the integrality of the pile shoe main body 1 and the PHC tubular pile in the pile sinking process can be furthest ensured, and the construction quality of the pile body is ensured; in addition, a plurality of longitudinal rib plates 3 are arranged on the outer side wall of the pile shoe main body 1 to strengthen the integral rigidity of the pile shoe main body 1 and reduce the friction force of pile side soil to the pile shoe main body 1 in the pile sinking process of the pile shoe main body 1

In an embodiment, the longitudinal rib plates 3 include a plurality of first longitudinal rib plates 3 and a plurality of second longitudinal rib plates 3, the plurality of first longitudinal rib plates 3 and the plurality of second longitudinal rib plates 3 are alternately arranged, the length of the first longitudinal rib plates 3 is smaller than that of the second longitudinal rib plates 3, the number of the second longitudinal rib plates 3 is equal to that of the triangular plates 4 and corresponds to that of the triangular plates 4 one by one, the second longitudinal rib plates 3 are connected with the corresponding triangular plates 4, and the front ends of the second longitudinal rib plates 3 are flush with the front ends of the corresponding triangular plates 4. The second longitudinal rib plates 3 extend to and are connected with the corresponding triangular plates 4, so that the rigidity of the triangular plates 4 can be increased, and the phenomenon that the tips of the triangular plates 4 are passivated in the pile sinking process is prevented. Preferably, the number of first longitudinal ribs 3, second longitudinal ribs 3 and triangular plates 4 is six.

In one embodiment, the triangular plate 4 is an arc-shaped structure, and the radius of the arc is the same as that of the pile shoe main body 1. One edge of the triangular plate 4 is attached to the front end of the pile shoe main body 1, so that the integral rigidity is increased, and the penetrating performance is improved. In one embodiment, two adjacent triangular plates 4 are connected to each other. Two adjacent triangular plates 4 share one angular point, and the plurality of triangular plates 4 are connected into a whole to form a circular shape, wherein the diameter of the circular shape is equal to that of the pile shoe main body 1. In one embodiment, the projection of the triangular plate 4 onto a plane is an equilateral triangle.

In one embodiment, adjacent longitudinal ribs 3 are connected by steel plates 5, the rear ends of the steel plates 5 are obliquely arranged on the edge of the pile head end plate 2, and the front ends are arranged on the pile shoe main body 1. Because pile head end plate 2 is 90 degrees with the angle of pile shoe main part 1, pile end resistance is great in the pile sinking process, and the rear end slope of steel sheet 5 sets up on the edge of pile head end plate 2, the front end setting of steel sheet 5 is on pile shoe main part 1, make pile shoe main part 1 smooth transition to pile head end plate 2, at the in-process of pile sinking, steel sheet 5 can play the cushioning effect, reduce the pile sinking in-process, pile shoe main part 1 is at the end resistance of pile head end plate 2, the penetrability of reinforcing pile shoe main part 1. In one embodiment, the pile head end plate 2 is a ring structure, the outer diameter of the pile head end plate 2 is the same as the outer diameter of the PHC pile, the inner diameter of the pile head end plate 2 is the same as the inner diameter of the PHC pile, and the outer diameter of the pile shoe main body 1 is 5-7cm smaller than the outer diameter of the pile head end plate 2. In one embodiment, the angle of inclination of the steel plate 5 to the pile head end plate 2 is 45 degrees.

In one embodiment, the longitudinal rib 3 comprises a rectangular section 31 and a right-angled trapezoidal section 32, the rear end of the rectangular section 31 is connected to the pile head end plate 2, the front end thereof is connected to the bottom of the right-angled trapezoidal section 32, and the straight waist of the right-angled trapezoidal section 32 is connected to the pile shoe body 1. The upper bottom of the right trapezoid section 32 of the longitudinal rib plate 3 is close to the front end of the pile shoe main body 1, namely, the tip of the longitudinal rib plate 3 is close to the front end of the pile shoe main body 1, the lower bottom of the right trapezoid section 32 is connected with the front end of the rectangular section 31, the rear end of the rectangular section 31 is connected with the pile head end plate 2, so that the longitudinal rib plate 3 is smoothly transited to the rectangular section 31 from the upper bottom of the right trapezoid section 32, and is smoothly transited to the pile head end plate 2 through the rectangular section 31, thereby reducing the impact energy loss of the pile shoe main body 1 in the hammering process, and effectively improving the hammering efficiency of the pile shoe main body 1.

In an embodiment, the utility model discloses PHC tubular pile shoe still includes to strengthen hoop 6, strengthens hoop 6 and sets up on the lateral wall of the front end of pile shoe main part 1. In one embodiment, the reinforcement collar 6 is formed by welding two semicircular rings. The wall thickness was 12 mm. The reinforcing hoop 6 is tightly attached to the outer side wall of the front end of the pile shoe main body 1 through outer welding, so that the rigidity of the front end of the pile shoe main body 1 can be improved, the front end of the pile shoe main body 1 has enough rigidity when entering a hard interlayer, and the phenomenon of edge curling cannot be caused.

Compared with the prior art, the beneficial effects of the utility model are that: the front end of the pile shoe main body 1 is provided with the plurality of triangular plates 4, the plurality of triangular plates 4 are distributed in a zigzag manner, the rock breaking capacity of the pile shoe main body 1 is enhanced, when the plurality of triangular plates 4 distributed in the zigzag manner contact with large stones, the stones are broken more easily, the large stones are broken into small broken stones, the large stones are prevented from being gushed into the PHC pipe pile to form blockage in the pile sinking process, the penetrating performance of the PHC pipe pile can be improved, the stress value of the pile body in the pile sinking process is reduced, the PHC pipe pile can more easily penetrate through the hard interlayer, the weathered rock stratum, the boulder and the like, the pile body is ensured to sink vertically downwards, the bending of the pile body is avoided, the deviation of the pile body is reduced, the horizontal acting force of the pile body in the pile sinking process is reduced, the large stones are broken into small broken stones at the same time, the resistance of the pile end can be reduced, the phenomena of penetration rate is prevented from being reduced, the pile sinking is difficult, the pile body is cracked and the like, the construction quality of the pile body is ensured; in addition, the outer side wall of the pile shoe main body 1 is provided with a plurality of longitudinal rib plates 3, so that the integral rigidity of the pile shoe main body 1 is enhanced, and the friction force of pile side soil to the pile shoe main body 1 in the pile sinking process of the pile shoe main body 1 is reduced.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any form, so that any simple modification, equivalent change and modification made by the technical entity of the present invention to the above embodiments without departing from the technical solution of the present invention all fall within the scope of the technical solution of the present invention.

Claims (10)

1. The utility model provides a PHC tubular pile shoe, its characterized in that, includes tubular pile shoe main part and pile head end plate, the rear end of pile shoe main part passes through the pile head end plate and is connected with the PHC tubular pile, evenly is equipped with a plurality of vertical floor on its lateral wall, the rear end and the pile head end plate of vertical floor are connected, the front end of pile shoe main part is equipped with a plurality of triangle-shaped boards along its circumference, an edge setting of triangle-shaped board is on the front end of pile shoe main part.

2. The PHC pile shoe of claim 1, wherein the longitudinal rib plates comprise a plurality of first longitudinal rib plates and a plurality of second longitudinal rib plates, the first longitudinal rib plates and the second longitudinal rib plates are alternately arranged, the length of the first longitudinal rib plates is smaller than that of the second longitudinal rib plates, the number of the second longitudinal rib plates is equal to that of the triangular plates, the second longitudinal rib plates are in one-to-one correspondence with the triangular plates, and the front ends of the second longitudinal rib plates are flush with the front ends of the corresponding triangular plates.

3. The PHC pile shoe of claim 1, wherein the triangular plate is an arc-shaped structure having an arc radius the same as the radius of the shoe body.

4. The PHC pile shoe of claim 1, wherein two adjacent triangular plates are connected to each other.

5. The PHC pile shoe of claim 1, wherein the adjacent longitudinal ribs are connected by a steel plate, the rear end of the steel plate is obliquely arranged on the edge of the pile head end plate, and the front end of the steel plate is arranged on the pile shoe main body.

6. The PHC pile shoe of claim 5, wherein the angle of inclination of the steel plate to the pile head end plate is 45 degrees.

7. The PHC pile shoe of claim 1, wherein the longitudinal ribs comprise a rectangular section and a right trapezoid section, the rear end of the rectangular section is connected with the pile head end plate, the front end thereof is connected with the bottom of the right trapezoid section, and the straight waist of the right trapezoid section is connected with the pile shoe main body.

8. The PHC pile shoe of claim 1, further comprising a reinforcing hoop disposed on an outer side wall of the front end of the shoe body.

9. The PHC pile shoe of claim 8, wherein the reinforcing hoop is formed by welding two semicircular rings.

10. The PHC pile shoe of claim 1, wherein the pile head end plate is of an annular structure, the outer diameter of the pile head end plate is the same as that of the PHC pile, the inner diameter thereof is the same as that of the PHC pile, and the outer diameter of the pile shoe main body is 5-7cm smaller than that of the pile head end plate.

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