CN219364592U - Prestressed high-pressure grouting anti-slip tubular pile - Google Patents

Abstract

The utility model provides a prestressed high-pressure grouting anti-slip pipe pile, which comprises the following components: the pile body is internally provided with a cavity, and one end of the pile body is provided with an opening communicated with the cavity; a plurality of grouting holes are uniformly formed in the side wall of the pile body, and are communicated with the cavity. In the utility model, after the pile body is buried underground, cement slurry is poured into the cavity inside the pile body through the opening of the pile body, and the slurry overflows from a plurality of grouting holes on the side wall of the pile body under the action of pressurization, so that the sliding belt and the weak belt are filled, the bending resistance and the shearing resistance of the pile body are improved, the effect of solidifying and reinforcing the sliding belt and the weak belt is achieved, and the pile body can be used for treating landslide and collapsed roadbeds and emergency treatment of the same type of roadbeds and side slope diseases.

Description

Prestressed high-pressure grouting anti-slip tubular pile

Technical Field

The utility model relates to the technical field of prestressed pipe piles, in particular to a prestressed high-pressure grouting anti-slip pipe pile.

Background

The prestressed pipe pile, which is simply called as a pipe pile, is a uniform-section precast concrete member of an elongated hollow cylinder, which is manufactured by a professional manufacturer by adopting the pretensioning method prestress and other processes, is sunk into the ground by adopting a hammering or static pressure method in the construction of a foundation, and is used for reinforcing surrounding foundations.

However, after the prestressed anti-slip pipe pile is arranged in the landslide area, the sliding surface of the prestressed anti-slip pipe pile is reinforced, but the limited bending and shearing resistance of the prestressed pipe pile is often used for resisting the lateral downward sliding force, and the limited bending and shearing resistance of the prestressed pipe pile can be only relied on, so that when the sliding force of the landslide or the roadbed sliding is larger than a certain value, the prestressed pipe pile can not achieve the effect of controlling the sliding of the landslide or the roadbed, and the use effect of the anti-slip pipe pile can not achieve the expected effect.

Disclosure of Invention

Aiming at the problems existing in the prior art, the utility model mainly solves the technical problems as follows: the existing prestressed pipe pile can only resist lateral downward sliding force by means of limited bending resistance and shearing resistance, and when the sliding force of landslide or roadbed sliding is larger than a certain value, the prestressed pipe pile cannot achieve the effect of controlling landslide or roadbed sliding, so that the use effect of the anti-sliding pile cannot achieve the expected effect.

In order to solve the technical problems, the utility model adopts the following technical scheme: a prestressed high-pressure grouting anti-slip pipe pile, comprising: the pile body is internally provided with a cavity, and one end of the pile body is provided with an opening communicated with the cavity; a plurality of grouting holes are uniformly formed in the side wall of the pile body, and the grouting holes are communicated with the cavity.

In the utility model, after the pile body is buried underground, cement slurry is poured into the cavity inside the pile body through the opening of the pile body, and the slurry overflows from a plurality of grouting holes on the side wall of the pile body under the action of pressurization, so that the sliding belt and the weak belt are filled, the bending resistance and the shearing resistance of the pile body are improved, the effect of solidifying and reinforcing the sliding belt and the weak belt is achieved, and the pile body can be used for treating landslide and collapsed roadbeds and emergency treatment of the same type of roadbeds and side slope diseases.

Preferably, a tip is arranged at one end of the pile body far away from the opening. The pile body can be inserted into the ground more conveniently through the tip.

Preferably, one end of the pile body close to the opening is provided with a crown beam connecting part. When the landslide and other disasters have larger sliding force, the crown beam connecting part can be arranged on the pile body, and the crown beam is arranged through the crown beam connecting part, so that a plurality of pile bodies are connected together, and the integral coordination deformation capacity of the pile bodies is enhanced.

Preferably, the cable further comprises an anchor cable, and one end of the anchor cable is installed on the crown beam connecting part.

The anchor cable is arranged on the crown beam connecting part, and the resistance of the pile body is reasonably shared through the anchoring action of the anchor cable, so that the effect of reducing the displacement of the crown beam connecting part is achieved.

Preferably, the grouting holes are square.

Preferably, the grouting holes are round.

Preferably, a plurality of grouting Kong Fenceng are provided, and the intervals between the grouting holes of each layer are the same. So that the cement slurry can evenly fill the sliding belt and the weak belt at different heights.

Preferably, the number of the grouting holes in each layer is the same, and the grouting holes in each layer are staggered. The coverage of the cement slurry to the filling of the sliding belt and the weak belt can be enlarged.

Compared with the prior art, the utility model has at least the following advantages:

1. the opening of the pile body is utilized to carry out high-pressure grouting on the hollow cavity, so that the integral bending resistance and shearing resistance of the pile body are improved.

2. Under the action of high pressure, the slurry in the cavity inside the pile body can permeate into the sliding belt of the landslide and the crack belt of the weak structural surface through the grouting holes on the outer side wall of the pile body, so that the strength of the weak belt is increased, and the stability of the pile body is fundamentally improved.

3. The pile body, the tip and the crown beam connecting part are integrated, the precast pile body can be precast in a concentrated way, the strength of the precast pile body is high, and the precast pile body has better shearing resistance and bending resistance; has the characteristics of quick production and convenient maintenance.

Drawings

In order to more clearly illustrate the embodiments of the present utility model, the drawings that are required to be used in the embodiments will be briefly described. Throughout the drawings, the elements or portions are not necessarily drawn to actual scale.

Fig. 1 is a front view structural diagram of a prestressed high-pressure grouting anti-slip pipe pile according to an embodiment.

Fig. 2 is a schematic diagram of landslide control of a prestressed high-pressure grouting anti-slip pipe pile according to an embodiment.

Reference numerals: 1-pile body, 2-grouting hole, 3-tip, 4-crown beam connecting part, 5-anchor cable and 6-crown beam.

Detailed Description

Embodiments of the technical scheme of the present utility model will be described in detail below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present utility model, and thus are merely examples, and are not intended to limit the scope of the present utility model.

In the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Referring to fig. 1-2, embodiments provided by the present utility model: a prestressed high-pressure grouting anti-slip pipe pile, comprising: the pile body 1, there is cavity in the pile body 1, one end of the pile body 1 has opening communicated with cavity; a plurality of grouting holes 2 are uniformly formed in the side wall of the pile body 1, and the grouting holes 2 are communicated with the cavity. Further, the grouting holes 2 are square or round; through setting up square or circular shape slip casting hole 2, can be when manufacturing pile body 1, more convenient to improve the production efficiency of pile body 1.

In the concrete implementation, corresponding longitudinal reinforcement in the pile body 1 is reinforced in the manufacturing process; after the pile body 1 is buried underground, cement slurry is poured into the cavity in the pile body 1 through the opening of the pile body 1, and under the action of pressurization, the cement slurry overflows from a plurality of grouting holes 2 on the side wall of the pile body 1, so that the sliding belt and the weak belt are filled, the bending resistance and the shearing resistance of the pile body 1 are improved, the effect of consolidating and reinforcing the sliding belt and the weak belt is achieved, and the pile body can be used for treating landslide and collapsed roadbeds and emergency treatment of diseases of roadbeds and side slopes of the same type.

Referring to fig. 1-2, in other embodiments, the end of the pile body 1 remote from the opening is provided with a tip 3. The pile body 1 can be more conveniently inserted into the ground through the tip 3.

Referring to fig. 1-2, in other embodiments, the end of the pile body 1 adjacent to the opening is provided with a crown beam connection 4. When the sliding force of disasters such as landslide is large, a crown beam connecting part 4 can be arranged on the pile body 1, and the crown beam 6 is arranged through the crown beam connecting part 4, so that a plurality of pile bodies 1 are connected together, and the integral coordinated deformation capacity of the pile bodies 1 is enhanced

Referring to fig. 1-2, in other embodiments, an anchor line 5 is further included, and one end of the anchor line 5 is mounted on the crown beam connection part 4. The anchor cable 5 is arranged on the crown beam connecting part 4, and the resistance of the pile body 1 is reasonably shared through the anchoring action of the anchor cable 5, so that the effect of reducing the displacement of the crown beam connecting part 4 is achieved.

Referring to fig. 1-2, in yet another embodiment, a plurality of grouting holes 2 are arranged in layers, and the interval between each layer of grouting holes 2 is the same; so that the cement slurry can evenly fill the sliding belt and the weak belt at different heights. Further, the number of grouting holes 2 in each layer is the same, and the grouting holes 2 in each layer are staggered; each layer of grouting holes 2 are staggered in the length direction of the pile body 1, so that the coverage range of cement slurry for filling the sliding belt and the weak belt can be enlarged.

The construction process flow of the utility model comprises the following steps:

firstly, drilling a landslide area; when the pile with large diameter is broken stone soil and the driving is difficult, drilling can be carried out firstly, and then the pile body 1 is put in; when the pile diameter is smaller and is clay and sand, the pile body 1 can be directly pressed into the ground by static pressure;

finally, high-pressure grouting is carried out, and the opening and the grouting holes 2 are closed; integral grouting can be adopted, and sectional grouting can also be adopted.

The above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model, and are intended to be included within the scope of the appended claims and description.

Claims (6)

1. The utility model provides a prestressing force high pressure slip casting antiskid tubular pile which characterized in that includes: the pile comprises a pile body (1), wherein a cavity is formed in the pile body (1), and an opening communicated with the cavity is formed in one end of the pile body (1); a crown beam connecting part (4) is arranged at one end, close to the opening, of the pile body (1); a tip (3) is arranged at one end of the pile body (1) far away from the opening;

a plurality of grouting holes (2) are uniformly formed in the side wall of the pile body (1), and the grouting holes (2) are communicated with the cavity.

2. The prestressed high-pressure grouting anti-slip pipe pile according to claim 1, further comprising an anchor cable (5), wherein one end of the anchor cable (5) is mounted on the crown beam connecting part (4).

3. A prestressed high-pressure grouting slide-resistant pipe pile according to claim 1, characterized in that the grouting holes (2) are square.

4. A prestressed high-pressure grouting slide-resistant pipe pile according to claim 1, characterized in that the grouting holes (2) are circular.

5. The prestressed high-pressure grouting anti-slip pipe pile according to claim 1, wherein a plurality of grouting holes (2) are arranged in layers, and the intervals between the grouting holes (2) of each layer are the same.

6. The prestressed high-pressure grouting anti-slip pipe pile according to claim 5, wherein the number of grouting holes (2) in each layer is the same, and the grouting holes (2) in each layer are staggered.