CN114197465A

CN114197465A - Prefabricated formula prestressed anchorage pole construction structures

Info

Publication number: CN114197465A
Application number: CN202210006592.2A
Authority: CN
Inventors: 刘志军; 谢志杰; 冯宝珍; 黄茂兴; 饶明文; 彭庆培; 宋文华; 李伟强; 詹壮平; 钟政坤; 李坚金
Original assignee: Guangdong Yuantian Engineering Co Ltd
Current assignee: Guangdong Yuantian Engineering Co Ltd
Priority date: 2022-01-04
Filing date: 2022-01-04
Publication date: 2022-03-18
Anticipated expiration: 2042-01-04
Also published as: CN114197465B

Abstract

The invention discloses a prefabricated prestressed anchor rod construction structure. This prefabricated formula prestressed anchorage pole construction structures includes: the drill bit, the hollow female anchor pipe and the hollow male anchor pipe; can fix female anchor pipe in cavity through mechanical equipment earlier when using to drive the female anchor pipe rotation of cavity, dig the hole through the drill bit of the female anchor pipe tip of cavity, treat that the female anchor pipe of cavity gets into downthehole back, fix the son anchor pipe of cavity through mechanical equipment, with the outside pulling of son anchor pipe of cavity, make the flexible post of son anchor pipe of cavity insert the second through-hole of female anchor pipe of cavity, realize the fixed of son anchor pipe of cavity and the female anchor pipe axial of cavity, accessible mechanical equipment drives the son anchor pipe of cavity and rotates afterwards, continue inwards digging the hole, the during operation need not to cooperate manpower manual connection anchor pipe, promote the efficiency of construction, need not to be interrupted midway, realize continuous automation mechanized operation.

Description

Prefabricated formula prestressed anchorage pole construction structures

Technical Field

The invention relates to the technical field of building construction, in particular to a prefabricated prestressed anchor rod construction structure.

Background

In civil engineering slope reinforcement and urban deep foundation pit supporting engineering, a prestressed anchor rod is often used as a stressed member of a supporting structure. However, due to the limitation of the conditions such as the field and the geology, the construction of the prestressed anchor rod in the local unfavorable geology and the soil layer which is difficult to form the hole is inevitable. The existing prestressed anchor rod generally comprises a drill bit, a hollow anchor pipe, a centering device, a connecting sleeve and the like. The drill bit is arranged at one end of the hollow anchor pipe, and mechanical equipment is utilized to drive the hollow anchor pipe to rotate, so that the drill bit rotates to realize punching. Under the condition that the length of a single hollow anchor pipe is insufficient, a centering device and a connecting sleeve are installed at the other end of the hollow anchor pipe, and the other hollow anchor pipe is connected through the connecting sleeve, so that the extension of the punching length is realized. However, the existing prestressed anchor rod structure needs to be matched with manpower to manually install the centering device and the connecting sleeve when in work, and then the connecting sleeve is aligned with the other hollow anchor pipe, so that the operation efficiency is low, manual installation needs to be carried out discontinuously in the midway, and continuous automatic operation cannot be realized. Therefore, it is necessary to provide a prefabricated prestressed anchor construction structure to solve the above problems.

Disclosure of Invention

The invention aims to provide a prefabricated prestressed anchor rod construction structure, which aims to solve the problems that when the existing prestressed anchor rod structure works, a centering device and a connecting sleeve need to be installed manually by matching with manpower, and then another hollow anchor pipe needs to be aligned with the connecting sleeve, so that the operation efficiency is low, manual installation needs to be carried out discontinuously in the midway, and continuous automatic operation cannot be realized.

The invention provides a prefabricated prestressed anchor rod construction structure, which comprises: the drill bit, the hollow female anchor pipe and the hollow male anchor pipe; the drill bit is connected to one end of the hollow female anchor pipe, a grouting hole is formed in the outer wall of the drill bit, threads are formed in the outer walls of the hollow female anchor pipe and the hollow male anchor pipe, the outer diameter of the hollow male anchor pipe is smaller than the inner diameter of the hollow female anchor pipe, one end of the hollow male anchor pipe is telescopically arranged inside the hollow female anchor pipe, and the length of the hollow male anchor pipe is larger than that of the hollow female anchor pipe.

Furthermore, one end of the hollow sub-anchor pipe is provided with an end cylinder, the center inside the end cylinder is provided with a central column, the central column is coaxial with the hollow sub-anchor pipe, three support rib plates are uniformly distributed on the peripheral surface of the central column according to the circumference, and the ends of the support rib plates are connected with the inner wall of the hollow sub-anchor pipe; the area that corresponds between the three support rib board on the pipe wall of cavity sub-anchor pipe is provided with three first through-hole respectively, be provided with flexible post in the first through-hole, the flexible post is located the inside one end of cavity sub-anchor pipe and is provided with the limiting plate, the limiting plate with be provided with the spring between the center post, the other end pipe wall of cavity female anchor pipe be provided with flexible post assorted second through-hole.

Further, the outer wall of the end portion cylinder is provided with three groove bodies which are evenly distributed in a circular mode, and a protruding block matched with the groove bodies is arranged on the inner wall of one end of the hollow female anchor pipe.

Further, the length of the telescopic column is larger than the sum of the pipe wall thicknesses of the hollow female anchor pipe and the hollow male anchor pipe.

Furthermore, the other end of the hollow anchor pipe is provided with two guard plates which are arranged in parallel, and the other end of the hollow anchor pipe penetrates through the two guard plates.

Furthermore, backing plates are arranged on the outer sides of the two guard plates, a third through hole matched with the outer diameter of the hollow anchor pipe is formed in the center of each backing plate, and the hollow anchor pipe penetrates through the third through hole and extends out of the outer side of each backing plate.

Further, the backing plate with pass through the bolt fastening between two backplate, the bolt distribute in the four corners of backing plate, two bolts in four bolts are fixed with the backplate that is located cavity subanchor pipe top, and two other bolts in four bolts are fixed with the backplate that is located cavity subanchor pipe below.

Furthermore, the outer side of the base plate is provided with a nesting sleeve, and the nesting sleeve is sleeved on the hollow anchor pipe.

Furthermore, the end face of one end, close to the base plate, of the nesting is parallel to the base plate, and the end face of one end, far away from the base plate, of the nesting is parallel to the end face of the hollow anchor pipe.

Furthermore, a fastening nut is arranged on the hollow sub-anchor pipe outside the nesting, and the fastening nut is in contact with the end face of the nesting.

The invention has the following beneficial effects: the invention provides a prefabricated prestressed anchor rod construction structure, which is characterized in that a drill bit, a hollow main anchor pipe and a hollow sub anchor pipe are arranged, the hollow sub anchor pipe is positioned in the hollow main anchor pipe in an initial state, a telescopic column of the hollow sub anchor pipe is in contact with the inner wall of the hollow main anchor pipe, when in use, the hollow main anchor pipe can be fixed through mechanical equipment and drives the hollow main anchor pipe to rotate, a hole is dug through the drill bit at the end part of the hollow main anchor pipe, after the hollow main anchor pipe enters the hole, the hollow sub anchor pipe is fixed through the mechanical equipment, the hollow sub anchor pipe is pulled outwards, the telescopic column of the hollow sub anchor pipe is inserted into a second through hole of the hollow main anchor pipe, the axial fixation of the hollow sub anchor pipe and the hollow main anchor pipe is realized, then the hollow sub anchor pipe can be driven to rotate through the mechanical equipment, the hole is dug inwards continuously, the anchor pipe does not need to be manually connected during work, and the construction efficiency is improved, the continuous automatic operation is realized without interruption in the midway.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a schematic view of a prefabricated prestressed anchor construction according to the present invention;

FIG. 2 is a schematic view of a use scenario of the prefabricated prestressed anchor construction structure according to the present invention;

FIG. 3 is a schematic view of a fastening nut and the like of the prefabricated prestressed anchor construction structure according to the present invention;

FIG. 4 is a schematic view of a drill bit of the prefabricated prestressed anchor construction structure according to the present invention;

FIG. 5 is a schematic view of a telescopic column of the prefabricated prestressed anchor construction structure according to the present invention;

FIG. 6 is a schematic view of the inside of a hollow sub-anchor pipe of the prefabricated prestressed anchor construction structure according to the present invention;

fig. 7 is a schematic view of a second through hole of a hollow female anchor pipe of the prefabricated prestressed anchor construction structure according to the present invention.

Illustration of the drawings: 1-a drill bit; 2-hollow female anchor pipe; 3-a hollow anchor tube; 4-protecting plate; 5-backing plate; 6-nesting; 7-fastening a nut; 8-bolt; 11-grouting holes; 21-a second via; 30-an end cartridge; 31-a telescopic column; 32-limiting plate; 33-a first via; 34-a central column; 35-support ribs; 36-a spring; 37-groove body.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings. It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

Exemplary embodiments according to the present application will now be described in more detail with reference to the accompanying drawings. These exemplary embodiments may, however, be embodied in many different forms and should not be construed as limited to only the embodiments set forth herein. It is to be understood that these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art, in the drawings, the thicknesses of layers and regions are exaggerated for clarity, and the same devices are denoted by the same reference numerals, and thus the description thereof will be omitted.

Referring to fig. 1 to 7, the present invention provides a prefabricated prestressed anchor construction structure, including: drill bit 1, hollow female anchor pipe 2 and hollow sub-anchor pipe 3.

Wherein, drill bit 1 is connected in the one end of hollow

female anchor pipe

2, and 1 outer wall of drill bit is provided with slip casting hole 11, and drill bit 1 is used for drilling under the rotation drive of hollow female anchor pipe 2, and slip casting hole 11 is used for flowing out and filling to the hole through slip casting hole 11 when 2 inside slip casting of hollow female anchor pipe. The outer walls of the hollow female anchor pipe 2 and the hollow sub-anchor pipe 3 are provided with threads, so that slag can be discharged conveniently in the process of rotary hole digging. The outer diameter of the hollow sub-anchor pipe 3 is smaller than the inner diameter of the hollow main anchor pipe 2, and one end of the hollow sub-anchor pipe 3 is telescopically arranged inside the hollow main anchor pipe 2, so that after the hollow main anchor pipe 2 is completely inserted into a drilling area, the hollow sub-anchor pipe 3 can be directly pulled out to realize the connection between the hollow main anchor pipe 2 and the hollow sub-anchor pipe 3. The length of the hollow sub-anchor pipe 3 is larger than that of the hollow main anchor pipe 2, so that the end part of the hollow sub-anchor pipe 3 can be exposed outside the hollow main anchor pipe 2, and the hollow sub-anchor pipe 3 can be conveniently fixed when drilling is needed to be continued.

Specifically, an end cylinder 30 is arranged at one end of the hollow sub-anchor pipe 3, a central column 34 is arranged in the center of the inside of the end cylinder 30, the central column 34 is coaxial with the hollow sub-anchor pipe 3, three support rib plates 35 are uniformly distributed on the outer peripheral surface of the central column 34 according to the circumference, and the ends of the support rib plates 35 are connected with the inner wall of the hollow sub-anchor pipe 3. Which functions to support the internal structure of the hollow anchor tube 3 and the area between the three support ribs 35 can be used as a passage for grouting.

Specifically, three first through holes 33 are respectively arranged on the pipe wall of the hollow sub-anchor pipe 3 corresponding to the areas between the three support rib plates 35, a telescopic column 31 is arranged in the first through hole 33, a limiting plate 32 is arranged at one end, located inside the hollow sub-anchor pipe 3, of the telescopic column 31, a spring 36 is arranged between the limiting plate 32 and a central column 34, and a second through hole 21 matched with the telescopic column 31 is arranged on the pipe wall of the other end of the hollow main anchor pipe 2. When the telescopic column 31 is inside the hollow female anchor pipe 2, the spring 36 is compressed, and the stopper plate 32 comes into contact with the support rib 35. After the telescopic column 31 moves to the second through hole 21, the spring 36 pushes the telescopic column 31 to extend out of the second through hole 21, so that the hollow sub-anchor pipe 3 and the hollow main anchor pipe 2 are connected.

Specifically, the outer wall of the end portion barrel 30 is provided with three groove bodies 37 which are evenly distributed in a circular shape, the inner wall of one end of the hollow female anchor pipe 2 is provided with a protruding block matched with the groove bodies 37, the hollow male anchor pipe 3 is located inside the hollow female anchor pipe 2 in an initial state, and the protruding block is located in the groove bodies 37, so that the hollow male anchor pipe 3 can be prevented from shaking when the hollow female anchor pipe 2 rotates.

Specifically, the length of the telescopic column 31 is greater than the sum of the thicknesses of the pipe walls of the hollow female anchor pipe 2 and the hollow male anchor pipe 3, so that the telescopic column 31 can extend out of the second through hole 21 after being inserted into the second through hole 21, and can play a role in supporting the hole wall while playing a role in connecting the hollow female anchor pipe 2 and the hollow male anchor pipe 3.

Specifically, the other end of the hollow sub-anchor pipe 3 is provided with two guard plates 4, the two guard plates 4 are arranged in parallel, and the other end of the hollow sub-anchor pipe 3 passes through between the two guard plates 4. Two ends of the two guard plates 4 can be fixed through an external device, and the two guard plates 4 are used for protecting and supporting the slope surface of the excavated slope. The outside of two backplate 4 is provided with backing plate 5, and backing plate 5 center is provided with the third through-hole with the external diameter assorted of cavity sub-anchor pipe 3, and cavity sub-anchor pipe 3 passes the third through-hole and stretches out to the outside of backing plate 5. Fixed through bolt 8 between backing plate 5 and two backplate 4, bolt 8 distributes in the four corners of backing plate 5, and two bolts 8 in four bolts 8 are fixed with backplate 4 that is located the son anchor pipe 3 top of cavity, and two other bolts 8 in four bolts 8 are fixed with backplate 4 that is located the son anchor pipe 3 below of cavity. The outer side of the backing plate 5 is provided with a nesting 6, and the nesting 6 is sleeved on the hollow anchor pipe 3. The end surface of the nesting 6 close to one end of the backing plate 5 is parallel to the backing plate 5, and the end surface of the nesting 6 far away from one end of the backing plate 5 is parallel to the end surface of the hollow sub-anchor pipe 3. The hollow sub-anchor pipe 3 is provided with a fastening nut 7 outside the nesting 6, and the fastening nut 7 is contacted with the end surface of the nesting 6. The nest 6 is compressed between the shim plate 5 and the fastening nut 7 by the fastening nut 7.

The working principle of the prefabricated prestressed anchor rod construction structure provided by the invention is as follows: in an initial state, the hollow sub-anchor pipe is positioned in the hollow main anchor pipe, and the telescopic column of the hollow sub-anchor pipe is in contact with the inner wall of the hollow main anchor pipe. Can fix female anchor pipe in cavity through mechanical equipment earlier when using to drive the female anchor pipe rotation of cavity, dig the hole through the drill bit of the female anchor pipe tip of cavity, treat that the female anchor pipe of cavity gets into downthehole back, fix the son anchor pipe of cavity through mechanical equipment, with the outside pulling of son anchor pipe of cavity, make the flexible post of son anchor pipe of cavity insert the second through-hole of female anchor pipe of cavity, realize the fixed of son anchor pipe of cavity and the female anchor pipe axial of cavity, accessible mechanical equipment drives the son anchor pipe of cavity and rotates afterwards, continue inwards digging the hole, the during operation need not to cooperate manpower manual connection anchor pipe, promote the efficiency of construction, need not to be interrupted midway, realize continuous automation mechanized operation.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a prefabricated formula prestressed anchorage pole construction structures which characterized in that includes: the drilling tool comprises a drilling bit (1), a hollow main anchor pipe (2) and a hollow sub anchor pipe (3);

drill bit (1) connect in the one end of hollow female anchor pipe (2), drill bit (1) outer wall is provided with slip casting hole (11), hollow female anchor pipe (2) the outer wall of hollow male anchor pipe (3) is provided with the screw thread, the external diameter of hollow male anchor pipe (3) is less than the internal diameter of hollow female anchor pipe (2), the one end retractable of hollow male anchor pipe (3) set up in the inside of hollow female anchor pipe (2), the length of hollow male anchor pipe (3) is greater than the length of hollow female anchor pipe (2).

2. The prefabricated prestressed anchor construction structure according to claim 1, wherein an end cylinder (30) is disposed at one end of the hollow anchor pipe (3), a center column (34) is disposed at the center of the interior of the end cylinder (30), the center column (34) is coaxial with the hollow anchor pipe (3), three supporting ribs (35) are uniformly distributed on the outer circumferential surface of the center column (34) according to the circumference, and the ends of the supporting ribs (35) are connected with the inner wall of the hollow anchor pipe (3);

the region that corresponds between three support rib board (35) on the pipe wall of cavity sub-anchor pipe (3) is provided with three first through-hole (33) respectively, be provided with flexible post (31) in first through-hole (33), the one end that flexible post (31) are located cavity sub-anchor pipe (3) inside is provided with limiting plate (32), limiting plate (32) with be provided with spring (36) between center post (34), the other end pipe wall of cavity main anchor pipe (2) be provided with flexible post (31) assorted second through-hole (21).

3. The prefabricated prestressed anchor construction structure according to claim 2, wherein the outer wall of said end cylinder (30) is provided with three circular and evenly distributed grooves (37), and the inner wall of one end of said hollow female anchor pipe (2) is provided with a projection matching with said grooves (37).

4. The prefabricated prestressed anchor construction structure according to claim 3, wherein the length of said telescopic column (31) is greater than the sum of the wall thicknesses of said hollow main anchor pipe (2) and said hollow sub anchor pipe (3).

5. The prefabricated prestressed anchor construction structure according to claim 4, wherein said hollow anchor pipe (3) is provided at the other end thereof with two protection plates (4), said two protection plates (4) being disposed in parallel with each other, and the other end of said hollow anchor pipe (3) passes through between said two protection plates (4).

6. The prefabricated prestressed anchor construction structure according to claim 5, wherein a backing plate (5) is disposed on the outer side of the two protection plates (4), a third through hole matched with the outer diameter of the hollow anchor pipe (3) is disposed in the center of the backing plate (5), and the hollow anchor pipe (3) passes through the third through hole and extends to the outer side of the backing plate (5).

7. The prefabricated prestressed anchor construction structure according to claim 6, wherein the backing plate (5) and the two protection plates (4) are fixed by bolts (8), the bolts (8) are distributed at four corners of the backing plate (5), two bolts (8) of the four bolts (8) are fixed to the protection plate (4) above the hollow anchor pipe (3), and the other two bolts (8) of the four bolts (8) are fixed to the protection plate (4) below the hollow anchor pipe (3).

8. The prefabricated prestressed anchor construction structure according to claim 7, wherein a nesting groove (6) is formed in an outer side of said tie plate (5), and said nesting groove (6) is sleeved on said hollow sub-anchor pipe (3).

9. The prefabricated prestressed anchor construction structure according to claim 8, wherein the end surface of said nest (6) near to the end of said slab (5) is parallel to said slab (5), and the end surface of said nest (6) far from the end of said slab (5) is parallel to the end surface of said hollow anchor pipe (3).

10. The prefabricated prestressed anchor construction structure according to claim 9, wherein said hollow sub-anchor pipe (3) is provided with a fastening nut (7) at an outer side of said nest (6), said fastening nut (7) being in end surface contact with said nest (6).