CN217870432U

CN217870432U - End-bearing pile for building reinforcement

Info

Publication number: CN217870432U
Application number: CN202220934341.6U
Authority: CN
Inventors: 杨伯韬
Original assignee: Sichuan Southwest Construction Technology Co ltd
Current assignee: Sichuan Southwest Construction Technology Co ltd
Priority date: 2022-04-20
Filing date: 2022-04-20
Publication date: 2022-11-22
Anticipated expiration: 2032-04-20

Abstract

The utility model belongs to the technical field of building reinforcement engineering, in particular to an end-bearing pile for building reinforcement, which comprises a ground bearing platform, a middle column part and a bottom expanding part which are arranged from top to bottom in sequence; a plurality of reinforcement cages are vertically arranged in the end-bearing pile; a tubular pile is arranged in the middle of the middle column part, and the lower end of the tubular pile extends into the expanded bottom part; the enlarged bottom portion has an outer diameter larger than an outer diameter of the intermediate pillar portion. The end bearing pile adopts a sectional structural design, and can respectively construct and cast three sections, and on the other hand, a plurality of reinforcement cages are arranged in the end bearing pile, different reinforcement cages can be independently manufactured, and the reinforcement cages are placed in holes for accommodating the end bearing pile after being manufactured, so that the processing and the production are convenient; in addition, the bottom expanding structure in the scheme has a larger outer diameter, so that the support stability and the structural strength of the bottom expanding part are higher.

Description

End-bearing pile for building reinforcement

Technical Field

The utility model belongs to the technical field of the building reinforcement engineering, concretely relates to end-bearing pile for building reinforcement.

Background

The housing construction is not only a building constructed by people for living but also a safety support for people. Some areas in China are areas with multiple natural disasters, such as earthquakes, floods, storms and the like. And the house is easy to be damaged after disasters such as earthquake, flood, storm and the like, and the normal use of the building can be influenced in serious cases, even the safety of residents is damaged. On the other hand, as urban construction becomes more crowded in recent years, buildings with underground spaces expanded and buildings with high floors built more and more in order to better solve the problem of utilization of longitudinal spaces of buildings and save floor space of buildings. The supporting ability of the supporting pile structure of the foundation is seriously degraded by the erosion of water and other minerals in the foundation buried under the ground. In a large number of buildings, the service life and the supporting force of foundation supporting piles manufactured in the early stage of the buildings are reduced along with the increase of time, at the moment, the foundation of the buildings needs to be reinforced, and the supporting force of the ground to the buildings is increased mainly in a mode of increasing end supporting piles in the reinforcing engineering.

One kind of end-bearing pile construction engineering underground supporting structure, mainly lean on the vertical resistance of the stratum at the pile end to provide the pile of the vertical bearing capacity; or a pile whose axial load is supported solely by the resistance of the rock or solid earth below the pile end. The friction resistance between the side surface of the pile body and the soil is not considered. At present, large-scale machinery does not have operating conditions due to space limitations such as layer height when foundation reinforcement is carried out easily. Therefore, the pile is usually repaired by adopting a manual hole digging and pile filling mode, and the reinforcement cage is inconvenient to construct in indoor construction, needs to be manufactured in the hole, and has low work efficiency.

SUMMERY OF THE UTILITY MODEL

In order to solve among the prior art that the building mends the big and receive factor influence big above-mentioned problem such as layer height of the stake degree of difficulty, this scheme provides an end-bearing pile for building reinforcement.

The utility model discloses the technical scheme who adopts does:

an end-bearing pile for building reinforcement comprises a ground bearing platform, a middle column part and an expanded bottom part which are arranged from top to bottom in sequence; the middle column part is cylindrical and is buried underground; the ground bearing platform is fixedly connected to the upper end of the middle column part, and the upper part of the ground bearing platform extends out of the ground; the bottom expanding part is in a frustum shape and is fixedly connected to the lower end of the middle column part; a plurality of reinforcement cages are vertically arranged in the end-bearing pile; a tubular pile is arranged in the middle of the middle column part, and the lower end of the tubular pile extends into the expanded bottom; the enlarged bottom portion has an outer diameter larger than an outer diameter of the intermediate pillar portion. The end-bearing pile in this scheme has the three-section, and this ground cushion cap, middle post portion and club-footed portion can use the concrete to pour the shaping respectively, reduce the construction degree of difficulty of end-bearing pile, in addition, will connect middle post portion and club-footed portion through the tubular pile, can improve the structural strength who successively pours fashioned middle post portion and club-footed portion.

As a complement or alternative to the above: the ground bearing platform is in a square platform shape or a round platform shape, is formed by pouring concrete and is connected with the upper end of the middle column part into a whole. The main effect of ground cushion cap is that support the ground or also can build the stand at this ground cushion cap, supports the room roof beam through the stand, and this ground cushion cap is cast in situ by concrete and is formed, and its processing degree of difficulty is lower, and this ground cushion cap also can more laminate in middle post portion simultaneously for the central point of ground cushion cap puts the vertical overlapping of central point with middle post portion, guarantees the support stability of end-bearing pile.

As a complement or alternative to the above: the middle column part comprises a plurality of ring piles which are vertically butted; the upper end of the tubular pile is arranged in the uppermost ring pile, and the lower end of the tubular pile extends out of the lowermost ring pile. The plurality of lantern rings can form the outer wall of the middle column part, the integrity of the poured middle column part can be ensured, and the ring pile can provide radial constraint force for concrete poured on the inner side of the ring pile, so that the middle column part cannot be disintegrated in the using process; after concrete is poured between the tubular pile and the ring pile, all the tubular piles can be vertically connected, so that the center of the middle column part coincides with the center of the tubular pile, and the supporting force is improved.

As a complement or alternative to the above: the ring pile is tubular, the wall thickness of the pipe at the upper part of the ring pile is larger than that of the pipe at the lower part of the ring pile, and the pipe wall at the upper part of the ring pile is provided with an annular bulge which can be matched and butted with the lower part of another ring pile. The ring pile adopts a plurality of overlapping structures, is convenient for combining a plurality of ring piles for use, and transports the ring pile, thereby reducing the overall construction difficulty of the end bearing pile.

As a complement or alternative to the above: have the stake becomes the die cavity that is used for concrete placement between tubular pile and ring stake, this stake becomes the die cavity and is provided with the second steel reinforcement cage in, and the butt joint department of adjacent ring stake corresponds and is provided with second steel reinforcement cage position. In the construction process, because the pile forming cavity is arranged between the tubular pile and the annular pile, the middle column part can be formed only by injecting concrete into the pile forming cavity.

As a complement or alternative to the above: the upper surface of ground cushion cap levels, is provided with first steel reinforcement cage in ground cushion cap department, and the up end of this first steel reinforcement cage stretches out outside the up end of ground cushion cap. Ground cushion cap is when connecting the stand or the ground in house, often just carries out external connection through this first steel reinforcement cage, and this first steel reinforcement cage can guarantee that whole end-bearing pile is higher to the stability and the reliability that housing construction supported.

As a complement or alternative to the above: a third reinforcement cage and a fourth reinforcement cage are arranged in the bottom expanding part; the fourth reinforcement cage is disc-shaped and is arranged below the third reinforcement cage; the third reinforcement cage is tubular, and the upper end of the third reinforcement cage extends into the middle column part. The fourth steel reinforcement cage is discoid structure, pours the shaping back when the end-bearing pile, can form the bottom surface that a footpath all has higher stability with the axial, reduces the problem that should expand the bottom and take place to warp or the fracture when bearing great pressure, simultaneously, utilizes this third steel reinforcement cage to strengthen expanding the holding power of bottom in vertical to the third steel reinforcement cage can be even as an organic whole with middle pillar portion with this bottom of expanding.

As a complement or alternative to the above: and the third steel reinforcement cage and the fourth steel reinforcement cage are fixedly connected through thin iron wires. After third steel reinforcement cage and the mutual fixed connection of fourth steel reinforcement cage, can regard as the strengthening rib that expands in the bottom, further promote this structural stability and the load-carrying capacity who expands the bottom.

The utility model has the advantages that: the end bearing pile in the scheme adopts a sectional structural design, and can be used for respectively constructing and pouring three sections, and on the other hand, a plurality of reinforcement cages are arranged in the end bearing pile, different reinforcement cages can be independently manufactured, and the reinforcement cages are placed into holes for accommodating the end bearing pile after being manufactured, so that the processing and the production are convenient; in addition, the bottom expanding structure in the scheme has a larger outer diameter, so that the support stability and the structural strength of the bottom expanding part are higher.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below.

FIG. 1 is a schematic structural view of an end-bearing pile for building reinforcement according to the present embodiment;

FIG. 2 is a structural diagram of the matching of a ring pile and a second steel reinforcement cage in the scheme;

fig. 3 is a structural diagram of the butt joint of two adjacent ring piles in the scheme.

In the figure: 1-a first reinforcement cage; 2-a ground bearing platform; 3-ring piling; 4-a second reinforcement cage; 5-pipe pile; 6-pile forming cavity; 7-a third reinforcement cage; 9-fourth reinforcement cage.

Detailed Description

The technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings, and the described embodiments are only a part of the embodiments, but not all of the embodiments, and all other embodiments obtained by those skilled in the art without making creative efforts based on the embodiments in the present disclosure belong to the protection scope of the present disclosure.

Example 1

As shown in fig. 1, the present embodiment designs an end-bearing pile for reinforcing the foundation of the existing house, and improving the service life of the house and the stability of the foundation structure. In the long-term use process of a foundation structure of a building, the supporting capability of a supporting pile structure of the foundation is possibly seriously reduced under the erosion of water and other mineral substances when the foundation structure is buried underground, and the problem of safe use of the underground soil structure is easily caused under the erosion of water flow; the serious changes of the foundation structure and the underground soil structure can affect the normal use of the building and even harm the safety of residents. At this moment, the building is often reinforced by pile repairing, so that the stability of the building is improved, and in the foundation reinforcement project, the problem that large machinery does not have operation conditions due to space limitations such as story height is often encountered. In the existing pile repairing engineering, the pile is generally repaired in a mode of manually digging holes and filling piles, a reinforcement cage is inconvenient to construct, the reinforcement cage needs to be manufactured in the holes, and the construction efficiency is very low.

The end-bearing pile designed by the embodiment comprises a ground bearing platform 2, a middle column part and a bottom expanding part, wherein the ground bearing platform 2, the middle column part and the bottom expanding part can be respectively poured and formed, so that the difficulty of the end-bearing pile is reduced; the ground bearing platform 2, the middle column part and the bottom expanding part are sequentially arranged from top to bottom.

The middle column part is cylindrical and is buried underground; when the house foundation is used, the middle column part mainly plays a role in transmission, and transmits the load borne by the ground bearing platform 2 to the bottom expanding part, so that the stability of the house foundation is enhanced, and the service life of the house is prolonged.

The ground bearing platform 2 is fixedly connected to the upper end of the middle column part, and the upper part of the ground bearing platform 2 extends out of the ground; the ground bearing platform 2 is in a square platform shape or a circular platform shape, and the ground bearing platform 2 is formed by pouring concrete and is connected with the upper end of the middle column part into a whole. The main function of the ground bearing platform 2 is to support the house structure, the ground bearing platform 2 is formed by pouring concrete in situ, the processing difficulty is low, and meanwhile, the ground bearing platform 2 can be more attached to the middle column part.

The bottom expanding part is in a frustum shape and is fixedly connected to the lower end of the middle column part; a plurality of reinforcement cages are vertically arranged in the end-bearing pile; a tubular pile 5 is arranged in the middle of the middle column part, and the lower end of the tubular pile 5 extends into the expanded bottom; the enlarged bottom portion has an outer diameter larger than an outer diameter of the intermediate pillar portion. A third reinforcement cage 7 and a fourth reinforcement cage 9 are arranged in the bottom expanding part; the fourth reinforcement cage 9 is disc-shaped and is arranged below the third reinforcement cage 7; the third reinforcement cage 7 is tubular, and the upper end of the third reinforcement cage 7 extends into the middle column portion. Fourth steel reinforcement cage 9 is discoid structure for after the shaping is pour to the end-bearing pile, should expand the bottom and be difficult to take place the problem of warping or fracture when bearing great pressure, simultaneously, utilize this third steel reinforcement cage 7 to strengthen expanding the bottom at vertical holding power, and third steel reinforcement cage 7 and fourth steel reinforcement cage 9 promote this structural stability and the load-carrying ability who expands the bottom through thin iron wire fixed connection.

Example 2

As shown in fig. 1 to 3, on the basis of the structure of embodiment 1, the middle column part comprises a plurality of loop piles 3, and the plurality of loop piles 3 are vertically butted; the upper end of the tubular pile 5 is arranged in the uppermost ring pile 3, and the lower end of the tubular pile 5 extends out of the lowermost ring pile 3. The plurality of lantern rings can form the outer wall of the middle column part, the integrity of the middle column part formed by pouring can be ensured, and the ring pile 3 can provide radial constraint force for concrete poured between the tubular pile 5 and the ring pile 3; after concrete is poured between the tubular pile 5 and the ring pile 3, all the tubular piles 5 can be vertically connected, so that the center of the middle column part is coincided with the center of the tubular pile 5.

The ring pile 3 is tubular, the pipe wall thickness of the upper part of the ring pile 3 is larger than that of the lower part of the ring pile, an annular bulge is arranged on the pipe wall of the upper part of the ring pile 3, and the annular bulge can be in butt joint with the lower part of another ring pile 3 in a matching manner. A plurality of ring piles 3 can be butted and combined for use, so that the transportation of the ring piles 3 is facilitated.

Have the stake shaping chamber 6 that is used for concrete placement between tubular pile 5 and ring stake 3, be provided with second steel reinforcement cage 4 in this stake shaping chamber 6, the butt joint department of adjacent ring stake 3 corresponds is provided with second steel reinforcement cage 4.

During construction, digging a corresponding hole at a position where a pile needs to be repaired in a building, radially expanding the bottom of the hole to enable the hole to be in a structure with a large bottom and a small top, weaving a fourth reinforcement cage 9 at a position, corresponding to the expanded bottom, at the bottom of the hole, placing a third reinforcement cage 7 which is woven, connecting the expanded bottom sections of the third reinforcement cage 7 and the fourth reinforcement cage 9 through a thin iron wire, and pouring a certain amount of concrete to form the expanded bottom of an end-bearing pile; then, the tubular pile 5 and the annular pile 3 are put in, the lower end of the tubular pile 5 extends into a third reinforcement cage 7, the fourth reinforcement cage 9 is used for being attached and repaired between the adjacent annular piles 3, and concrete is poured around the tubular pile 5 to form a middle column part; and finally, the top of the middle column part is matched with the first reinforcement cage 1 to cast and form the ground bearing platform 2, and the construction of the end bearing pile is completed.

The above examples are merely for clearly illustrating the examples and are not intended to limit the embodiments; and are neither required nor exhaustive of all embodiments. And obvious variations or modifications of this technology may be resorted to while remaining within the scope of the technology.

Claims

1. The utility model provides an end-bearing pile for building reinforcement which characterized in that: comprises a ground bearing platform (2), a middle column part and a bottom expanding part which are arranged from top to bottom in sequence; the middle column part is cylindrical and is buried underground; the ground bearing platform (2) is fixedly connected to the upper end of the middle column part, and the upper part of the ground bearing platform (2) extends out of the ground; the bottom expanding part is in a frustum shape and is fixedly connected to the lower end of the middle column part; a plurality of reinforcement cages are vertically arranged in the end-bearing pile; a tubular pile (5) is arranged in the middle of the middle column part, and the lower end of the tubular pile (5) extends into the expanded bottom part; the enlarged bottom portion has an outer diameter larger than an outer diameter of the intermediate pillar portion.

2. An end-bearing pile for construction reinforcement according to claim 1, characterized in that: the ground bearing platform (2) is in a square platform shape or a circular platform shape, and the ground bearing platform (2) is formed by pouring concrete and is connected with the upper end of the middle column part into a whole.

3. An end-bearing pile for construction reinforcement according to claim 1, characterized in that: the middle column part comprises a plurality of ring piles (3), and adjacent ring piles (3) are vertically butted; the upper end of the tubular pile (5) is arranged in the uppermost annular pile (3), and the lower end of the tubular pile (5) extends out of the lowermost annular pile (3).

4. An end-bearing pile for construction reinforcement according to claim 3, wherein: the ring pile (3) is tubular, the wall thickness of the pipe on the upper part of the ring pile (3) is larger than that of the pipe on the lower part of the ring pile, an annular bulge is arranged on the pipe wall on the upper part of the ring pile (3), and the annular bulge can be in butt joint with the lower part of another ring pile (3) in a matched mode.

5. An end-bearing pile for construction reinforcement according to claim 3, wherein: a pile forming cavity (6) used for concrete pouring is formed between the tubular pile (5) and the ring pile (3), a second steel reinforcement cage (4) is arranged in the pile forming cavity (6), and the butt joint of the adjacent ring piles (3) is correspondingly provided with the second steel reinforcement cage (4).

6. An end-bearing pile for construction reinforcement according to claim 1, characterized in that: the upper surface of ground cushion cap (2) levels, is provided with first steel reinforcement cage (1) in ground cushion cap (2) department, and the up end of this first steel reinforcement cage (1) stretches out outside the up end of ground cushion cap (2).

7. An end-bearing pile for construction reinforcement according to claim 1, characterized in that: a third reinforcement cage (7) and a fourth reinforcement cage (9) are arranged in the bottom expanding part; the fourth reinforcement cage (9) is disc-shaped and is arranged below the third reinforcement cage (7); the third reinforcement cage (7) is tubular, and the upper end of the third reinforcement cage (7) extends into the middle column part.

8. An end-bearing pile for construction reinforcement according to claim 7, wherein: and the third reinforcement cage (7) and the fourth reinforcement cage (9) are fixedly connected through thin iron wires.