CN217419585U

CN217419585U - Device for assisting in breaking pile head of concrete cast-in-place pile

Info

Publication number: CN217419585U
Application number: CN202121934900.5U
Authority: CN
Inventors: 彭耀平; 杨璐铭; 任刃; 张俊彦; 汪安华; 苏波; 李士超; 廖聪; 周会迪; 易柯
Original assignee: Sinohydro Bureau 10 Co Ltd
Current assignee: Sinohydro Bureau 10 Co Ltd
Priority date: 2021-08-17
Filing date: 2021-08-17
Publication date: 2022-09-13
Anticipated expiration: 2031-08-17

Abstract

The utility model discloses a device for assisting in breaking the pile head of a concrete cast-in-place pile, which comprises a plurality of wedge-hole pre-buried pipes, a bracket and a hanging rib; the wedge hole embedded pipes are arranged along the radial direction of the reinforcement cage, and are arranged in the reinforcement cage and positioned at the upper part of the pile top elevation; a plurality of end parts of the bracket are respectively connected with the inner ends of the wedge hole embedded pipes; the lower end of the hanging rib is connected with the middle part of the bracket, and the hanging rib is vertical to the bracket. The method and the device have the advantages that the manual drilling process of the wedge holes is omitted under the action of the multiple wedge hole embedded pipes, and the manual operation time is shortened; the multiple wedge-hole pre-buried pipes can be placed in place through the matching action of the bracket and the lifting rib, and the lifting of the whole pile head can be completed through the lifting rib; by arranging the isolation belt, the work of removing the steel bar protection layer is avoided; in addition, the structure can reduce the environmental pollution such as dust, noise and the like generated during construction operation.

Description

Device for assisting in breaking pile head of concrete cast-in-place pile

Technical Field

The utility model relates to a bored concrete pile construction technical field especially relates to a device that supplementary concrete bored concrete pile head was abolished.

Background

In the civil engineering field, often utilize the pile foundation to deal with the factor of unfavorable building construction such as complicated geological conditions, foundation bearing capacity are not enough, the mechanical pore-forming is mostly adopted to the pile foundation, cast in situ concrete bored concrete pile's construction technology, according to the national standard requirement, for the shaping quality of assurance pile bolck concrete, the height of over-filling of cast in situ concrete bored concrete pile is 0.8-1.0m, this part must be abolished in the later stage, traditional abolish method abolishes and has the following problem:

at present, pile heads are mainly broken manually, steel bar protective layers are removed, after steel bar cage main bars are exposed, drilling is still needed to be carried out at the designed pile top elevation position, so that wedges are inserted for pile breaking operation, and the construction efficiency is low; in other patent construction methods, the quality and the strength of pile body concrete at the lower part of an isolation (split plate) plate are difficult to ensure, the pile body concrete is mostly poured by a guide pipe, an embedded steel drill pipe is basically submerged by the concrete due to the large deviation between the diameter of a drill hole and the diameter of a reinforcement cage, and the embedded steel drill pipe is still required to be searched after a reinforcement protection layer is removed, so that the construction process is increased, and the construction progress and the cost are increased; the distance between the general pile foundations is dense, and the residual concrete blocks after pile heads are broken are difficult to transport to the outside of the construction operation surface and the cost is high; at present, pile heads are broken manually, the operation time is long, the operation environment is poor, the health of operators is not facilitated, and the pile breaking cost is high; the construction operation noise is large in the process of drilling and chiseling the concrete on the reinforcing steel bar protective layer, the dust pollution is serious, and the environmental protection control is not facilitated

Therefore, it is necessary to develop a device for assisting the removal of the pile head of the cast-in-place concrete pile to solve the above problems.

Disclosure of Invention

The utility model aims at solving the problem that a device for assisting the breaking of the pile head of the concrete cast-in-place pile is designed.

The utility model discloses a following technical scheme realizes above-mentioned purpose:

a device for assisting in breaking a pile head of a concrete cast-in-place pile comprises:

a plurality of wedge-hole embedded pipes: the wedge hole embedded pipes are arranged along the radial direction of the reinforcement cage, and are arranged in the reinforcement cage and positioned at the upper part of the pile top elevation;

a support; a plurality of end parts of the bracket are respectively connected with the inner ends of the wedge hole embedded pipes;

hanging the ribs; the lower end of the hanging rib is connected with the middle part of the bracket, and the hanging rib is vertical to the bracket.

Furthermore, the side wall of the upper end of the hanging rib is provided with a connecting pipe for placing a vibrating spear.

Furthermore, the device for assisting the pile head of the concrete cast-in-place pile to be broken also comprises a plurality of isolation sleeves, and the isolation sleeves are sleeved on main reinforcements of a plurality of reinforcement cages positioned at the upper part of the pile top elevation.

Furthermore, the device for assisting the pile head of the concrete cast-in-place pile to be broken also comprises an isolation belt, wherein the isolation belt is arranged on the side wall of the reinforcement cage at a position 10cm above the elevation of the pile top, and the thickness of the isolation belt is the same as that of the reinforcement protection layer.

Preferably, the wedge hole embedded pipes are uniformly distributed around the axis of the reinforcement cage.

Specifically, the support comprises a plurality of straight rods, first ends of the straight rods are connected to a point, the point is located on an axis of the reinforcement cage, and second ends of the straight rods are respectively connected with inner ends of the wedge hole embedded pipes.

Preferably, the outer ends of the multiple wedge-hole embedded pipes are flush with the side wall of the cast-in-place pile.

Preferably, the upper end of the lifting rib is connected with a lifting ring.

The beneficial effects of the utility model reside in that:

according to the method, the manual drilling process of the wedge holes is omitted under the action of the multiple wedge hole pre-buried pipes, and the manual operation time is shortened; the multiple wedge-hole pre-buried pipes can be placed in place through the matching action of the bracket and the lifting rib, and the lifting of the whole pile head can be completed through the lifting rib; by arranging the isolation belt, the work of removing the steel bar protection layer is avoided; in addition, the structure can reduce the environmental pollution such as dust, noise and the like generated during construction operation.

Drawings

FIG. 1 is a schematic view of the mounting structure of the present application;

FIG. 2 is a top view of the present application;

FIG. 3 is a schematic view of an installation step one of the present application;

FIG. 4 is a schematic view of the installation step two of the present application;

FIG. 5 is a schematic view of the installation step three of the present application;

FIG. 6 is a fourth schematic view of the installation step of the present application;

FIG. 7 is a schematic illustration of the installation step five of the present application;

wherein corresponding reference numerals are: 1-isolation sleeve, 2-isolation belt, 3-bracket, 4-wedge hole pre-buried pipe, 5-hanging bar and 6-access pipe.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. The components of embodiments of the present invention, as 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 invention, as presented in the figures, 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 of the present invention, all other embodiments obtained by a person skilled in the art without making 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.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "inner", "outer", "left", "right", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, or orientations or positional relationships that are conventionally placed when the products of the present invention are used, or orientations or positional relationships that are conventionally understood by those skilled in the art, and are merely for convenience of description of the present invention and simplifying the description, but do not indicate or imply that the device or element that is referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first," "second," and the like are used solely to distinguish one from another, and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be further noted that, unless explicitly stated or limited otherwise, the terms "disposed" and "connected" are to be interpreted broadly, and for example, "connected" may be a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; the connection may be direct or indirect through an intermediate medium, and the connection may be internal to the two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

The following describes in detail embodiments of the present invention with reference to the accompanying drawings.

As shown in fig. 1 and 2, an apparatus for assisting in breaking a pile head of a concrete cast-in-place pile comprises:

6 wedge hole pre-buried pipes 4: the 6 wedge-hole pre-buried pipes 4 are all arranged along the radial direction of the reinforcement cage, and the 6 wedge-hole pre-buried pipes 4 are arranged in the reinforcement cage and positioned at the upper part of the pile top elevation; the 6 wedge-hole pre-buried pipes 4 are uniformly distributed around the axis of the reinforcement cage, and the included angle between two adjacent wedge-hole pre-buried pipes 4 is 60 degrees. The 6 wedge-hole pre-buried pipes 4 are arranged on the same plane and are all vertical to the axial lead of the cast-in-place pile.

A bracket 3; the support 3 comprises 6 straight rods, the first ends of the 6 straight rods are connected to a point, the point is located on the axis of the reinforcement cage, the second ends of the 6 straight rods are respectively connected with the inner ends of the 6 wedge-hole pre-buried pipes 4, and the outer ends of the 6 wedge-hole pre-buried pipes 4 are flush with the side wall of the cast-in-place pile.

A plurality of end parts of the bracket 3 are respectively connected with the inner ends of the wedge hole embedded pipes 4;

hanging ribs 5; the lower end of the hanging rib 5 is connected with the middle part of the bracket 3, and the hanging rib 5 is vertical to the bracket 3. An access pipe 6 for placing a vibrating rod is arranged on the side wall of the upper end of the hanging rib 5. The upper end of the lifting rib 5 is connected with a lifting ring, and the pile head can be lifted away through the lifting ring.

A plurality of spacer sleeves 1; the isolation sleeves 1 are sleeved on main reinforcements of the reinforcement cages positioned at the upper part of the pile top elevation. The number of the isolation sleeve 1 is the same as that of the main reinforcements of the reinforcement cage, two ends of the isolation sleeve 1 are tightly blocked after the isolation sleeve 1 is installed in place, and the isolation sleeve 1 has the function of avoiding the connection between the main reinforcements and pile head concrete which are removed later.

A separator 2; the isolation belt 2 is formed into a ring shape, the isolation belt 2 is installed on the side wall of the reinforcement cage 10cm above the elevation of the pile top, and the thickness of the isolation belt 2 is the same as that of the reinforcement protection layer. Through setting up median 2, remove the work of rejecting the reinforcing bar protective layer from.

The installation process and the working process of the application are as follows:

step 1; before the steel reinforcement cage is manufactured, a hanging rib 5 and the center of a support 3 are welded, the length of the hanging rib 5 is 15-30cm larger than that of the pile body steel reinforcement cage hanging rib, a vibrating rod connecting pipe 6 is welded at the top end of the hanging rib 5, and meanwhile, the hanging rib 5 serves as an elevation control rod in the sinking process of the device.

Step 2; as shown in fig. 3, the steel reinforcement cage main reinforcement is installed on the isolation sleeve 1 (preferably, PVC pipe), and both ends of the isolation sleeve 1 are tightly sealed. As shown in fig. 4, by using the principle of material difference, the rubber isolation belt 2 with the same thickness as the pile head steel bar protection layer is installed 10cm above the pile top elevation, and the thickness of the steel bar protection layer is determined (if the pile top elevation is higher than the pile casing bottom elevation, the thickness of the isolation belt 2 is determined by the diameter of the pile casing, so that the rubber isolation belt 2 is torn off manually after the pile head is excavated, and the work of removing the steel bar protection layer is avoided.

Step 3; as shown in fig. 5, the reinforcement cage formed by binding is hung in the hole, and concrete is poured according to the conventional process.

Step 4; as shown in fig. 6, the vibrating rod is put into the access pipe 6 and starts to work, and the manufactured embedded device is sunk into the poured concrete, so that the vibrating rod is sunk to the designed height.

Step 5; as shown in fig. 7, excavating a pile head, tearing off the isolation belt 2, searching the wedge-hole pre-buried pipe 4 according to the positioning rib and the elevation, inserting a hydraulic splitting gun through the wedge-hole pre-buried pipe 4 after the finding, splitting the pile head, and then lifting and moving the pile head by using a crane.

The technical scheme of the utility model is not restricted to the restriction of above-mentioned specific embodiment, all according to the utility model discloses a technical scheme makes technical deformation, all falls into within the protection scope of the utility model.

Claims

1. The utility model provides a device that supplementary cast-in-place concrete pile head was broken, its characterized in that includes:

hanging a rib; the lower end of the hanging rib is connected with the middle part of the bracket, and the hanging rib is vertical to the bracket.

2. The device for assisting in breaking the pile head of the concrete cast-in-place pile according to claim 1, wherein a vibrating rod insertion pipe is arranged on the side wall of the upper end of the hanging rib.

3. The apparatus of claim 1, further comprising a plurality of isolation sleeves, wherein the isolation sleeves are mounted over the main ribs of the reinforcement cages above the elevation of the pile top.

4. The device for assisting in breaking the pile head of the concrete pouring pile according to claim 1, wherein the device for assisting in breaking the pile head of the concrete pouring pile further comprises an isolation belt, the isolation belt is installed on the side wall of the reinforcement cage 10cm above the elevation of the pile top, and the thickness of the isolation belt is the same as that of the reinforcement protection layer.

5. The device of claim 1, wherein the plurality of wedge-hole pre-embedded pipes are uniformly distributed around an axial lead of the reinforcement cage.

6. The apparatus as claimed in claim 1, wherein the support comprises a plurality of straight rods, first ends of the plurality of straight rods are connected to a point located on an axial center line of the reinforcement cage, and second ends of the plurality of straight rods are respectively connected to inner ends of the plurality of wedge-hole pre-buried pipes.

7. The apparatus of claim 1, wherein the outer ends of the plurality of wedge-hole pre-buried pipes are flush with the side wall of the cast-in-place pile.

8. The device for assisting in breaking the pile head of the cast-in-place concrete pile according to claim 1, wherein a hanging ring is connected to the upper end of the hanging rib.