CN210140830U

CN210140830U - Quick joint for cast-in-place pile post-grouting

Info

Publication number: CN210140830U
Application number: CN201920833426.3U
Authority: CN
Inventors: 吴文平; 葛智平; 李晋禹
Original assignee: Tengda Construction Group Co Ltd
Current assignee: Tengda Construction Group Co Ltd
Priority date: 2019-06-04
Filing date: 2019-06-04
Publication date: 2020-03-13
Anticipated expiration: 2029-06-04

Abstract

The utility model discloses a quick-operation joint for bored concrete pile back slip casting belongs to bored concrete pile construction technical field. The quick joint for post-grouting of the cast-in-place pile comprises a connecting component and a joint piece. The connecting component is in a cylindrical shape with an opening at one end, the opening end of the connecting component is detachably connected and communicated with the embedded grouting pipe, a connecting end pipe is arranged on the side wall of the connecting component, and the connecting end pipe is communicated with the inner cavity of the connecting component; the joint spare is both ends open-ended tube-shape, and the first end of joint spare and the one end that coupling assembling was kept away from to the connecting end pipe can be dismantled and be connected and communicate, and the second end of joint spare is configured to can dismantle with the connecting pipe and is connected and communicate, and connecting pipe and mud container intercommunication are equipped with the check valve on the joint spare. The utility model discloses simple structure, simple to operate uses manpower sparingly and man-hour, and can carry out the complete demolition with quick-operation joint for grouting behind this bored concrete pile after the mud jacking, does not destroy the joint design, can continue to use at follow-up stake position.

Description

Quick joint for cast-in-place pile post-grouting

Technical Field

The utility model relates to a bored concrete pile construction technical field especially relates to a quick-operation joint for slip casting is pressed to slip casting behind bored concrete pile.

Background

When a bored pile is constructed, a post grouting technique is generally adopted to improve the bearing capacity of a pile body. Specifically, a grouting pipe is arranged on a pile body in advance. After the pile body is poured and certain strength is achieved, the connecting pipe is connected with the pre-buried mud jacking pipe through the connecting joint, one end, far away from the mud jacking pipe, of the connecting pipe is connected with the cement stirring barrel, and cement paste in the cement stirring barrel enters the mud jacking pipe through the connecting pipe. And (3) supplying slurry to the side surface and the bottom of the pile body through the mud jacking pipe, and solidifying the mud skin on the side of the pile and the sediment at the bottom of the hole, so that the soil body on the side of the pile and at the bottom end of the pile within a certain range is reinforced.

In the prior art, a manual welding mode is mostly adopted to connect the connecting joint with the connecting pipe and the embedded grouting pipe respectively, the operation is extremely inconvenient and quick, a power supply and transfer equipment need to be temporarily led and connected on a construction site, the labor and the time are consumed, and the construction efficiency is greatly reduced. Further, when grouting is finished and transferred to the next pile position for grouting, the connecting joint and the embedded grouting pipe need to be cut off, and the broken end needs to be polished smoothly, so that operation is inconvenient, and manpower and time are wasted.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a quick-operation joint for slip casting behind bored concrete pile, simple structure, it is convenient to connect, improves the efficiency of construction.

In order to realize the purpose, the following technical scheme is provided:

a quick coupling for post-grouting of a cast-in-place pile, comprising:

the connecting assembly is in a cylindrical shape with an opening at one end, the opening end of the connecting assembly is detachably connected and communicated with the embedded grouting pipe, a connecting end pipe is arranged on the side wall of the connecting assembly, and the connecting end pipe is communicated with the inner cavity of the connecting assembly;

the joint spare, the joint spare is both ends open-ended tube-shape, the first end of joint spare with the connecting end pipe is kept away from coupling assembling's one end can be dismantled to connect and communicate, the second end of joint spare is configured to can dismantle with the connecting pipe and is connected and communicate, connecting pipe and mud container intercommunication, be equipped with the check valve on the joint spare.

As the utility model discloses a quick-operation joint's for bored concrete pile back grouting preferred scheme, coupling assembling includes first half barrel and the half barrel of second, first connecting portion of protruding being equipped with all with two sides of its axial direction parallel on the first half barrel, all protruding second connecting portion that are equipped with two sides of its axial direction parallel on the half barrel of second, first connecting portion with fixed connection can be dismantled to the second connecting portion.

As the utility model discloses a slip casting is quick-operation joint's for slip casting preferred scheme behind bored concrete pile, first connecting portion with second connecting portion are the flange structure that can be pieced together each other.

As the utility model discloses a slip casting is quick-operation joint's for slip casting preferred scheme behind bored concrete pile, first connecting portion with the second connecting portion pass through bolted connection.

As the utility model discloses a slip casting is quick-operation joint's for slip casting preferred scheme behind bored concrete pile, the connecting end pipe with coupling assembling integrated into one piece.

As the utility model discloses a slip casting is quick-operation joint's for slip casting preferred scheme behind bored concrete pile still includes first sealing member, first sealing member is located pre-buried mud jacking pipe with between the coupling assembling.

As the utility model discloses a slip casting is quick-operation joint's for slip casting preferred scheme behind bored concrete pile still includes the second sealing member, the second sealing member is located first half barrel with between the half barrel of second.

As the utility model discloses a slip casting is quick-operation joint's for slip casting preferred scheme behind bored concrete pile, the second sealing member is the U-shaped.

As the utility model discloses a slip casting is quick-operation joint's for slip casting preferred scheme behind bored concrete pile, the piecing with connect end pipe threaded connection.

As the utility model discloses a slip casting is quick-operation joint's for slip casting preferred scheme behind bored concrete pile, the piecing together with the connecting pipe passes through the staple bolt and connects.

Compared with the prior art, the utility model provides an among the quick-operation joint for the grouting behind the bored concrete pile, coupling assembling can dismantle with pre-buried mud jacking pipe and joint spare respectively and be connected, the joint spare can be dismantled with the connecting pipe and be connected, thereby realize the connection dismantled of pre-buried mud jacking pipe and connecting pipe, easy dismounting uses manpower sparingly and man-hour, and the mud jacking is ended afterwards, can carry out the complete demolishment with this quick-operation joint for the mud jacking grouting behind the bored concrete pile, do not destroy the joint design, need not to polish etc. operation, and can continue to use at follow-up stake position, and the cost is saved.

Drawings

Fig. 1 is a schematic structural diagram of a first half cylinder provided in an embodiment of the present invention;

fig. 2 is an assembly schematic diagram of a second half cylinder and a pre-buried mud jacking pipe provided by the embodiment of the utility model;

fig. 3 is a schematic assembly view of the first half cylinder and the joint member according to the embodiment of the present invention;

fig. 4 is a schematic structural diagram of a second sealing member according to an embodiment of the present invention.

Reference numerals:

1-a first half cylinder; 2-a second half cylinder; 3-connecting the end pipe;

11-a first connection; 111-a first via; 21-a second connection; 211-second via hole;

4-a first seal; 5-a second seal; 51-a third via;

6-a joint piece; 61-a first end; 62-a second end; 7-a check valve; 8-embedding the grouting pipe.

Detailed Description

In order to make the technical problems, technical solutions adopted and technical effects achieved by the present invention clearer, the embodiments of the present invention will be described in further detail with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments, not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by the skilled in the art without creative work belong to the protection scope of the present invention.

The embodiment provides a quick coupling for grouting after a cast-in-place pile for connecting a pre-buried grouting pipe and a connecting pipe. The mud enters the embedded mud jacking pipe from a mud container (such as a mud stirring barrel) through the connecting pipe so as to supply the mud to the side surface and the bottom of the pile body.

As shown in fig. 1 to 3, the quick coupling for post-grouting of a cast-in-place pile may optionally include a coupling member and a coupling member 6. The coupling assembly may optionally include a first barrel half 1 and a second barrel half 2. Two sides of the first half cylinder 1 parallel to the axis extend outwards to form flanges respectively to form a first connecting part 11. Two side edges of the second cylinder half 2 parallel to the axis extend outwards to form flanges respectively to form second connecting parts 21.

First half barrel 1 and second half barrel 2 are pieced together to realize connecting through first connecting portion 11 and second connecting portion 21, form the cylinder-shape and one end open-ended coupling assembling. Specifically, be equipped with a plurality of first through-holes 111 on the first connecting portion 11, be equipped with a plurality of second through-holes 211 on the second connecting portion 21, the bolt passes first through-hole 111 and second through-hole 211 in proper order after be connected with the nut to realize first half barrel 1 and the half barrel 2's of second detachable connection, easy dismounting.

Further, a second sealing member 5 is disposed between the first half cylinder 1 and the second half cylinder 2 to ensure the sealing performance therebetween. As shown in fig. 4, the second sealing member 5 is U-shaped to fit the shape of the first and second cylinder halves 1 and 2. The second sealing member 5 is provided with a third through hole 51, and the bolt is connected with the bolt after sequentially passing through the first through hole 111, the third through hole 51 and the second through hole 211.

In other embodiments, the second connection portion 21 may be a groove structure extending outward, and the first connection portion 11 is clamped with the second connection portion 21 and further connected by a bolt, so that the connection is realized and the sealing performance between the two is improved.

The embedded grouting pipe 8 is communicated with the opening end of the connecting component and is sealed by the first sealing element 4. The first sealing element 4 is preferably an annular sealing ring, so that the installation is convenient and the sealing effect is good. The process that coupling assembling and pre-buried mud jacking pipe 8 are connected roughly: first sealing member 4 is firstly sleeved on the embedded grouting pipe 8, then the first half cylinder body 1 and the second half cylinder body 2 are spliced and the second sealing member 5 is placed between the first half cylinder body and the second half cylinder body, and finally the first half cylinder body and the second half cylinder body are screwed down by bolts.

Referring to fig. 1 again, the side wall of the first half cylinder 1 is provided with a connecting end pipe 3, and the connecting end pipe 3 is connected with the inner cavity of the first half cylinder 1. Preferably, the connecting end pipe 3 and the first half cylinder 1 are integrally formed, so that the processing is convenient and the connection is firm. Further, referring to fig. 3, the first half cylinder 1 is connected to the above-described joint member 6 through the connection end pipe 3. For convenience of description, the end of the joint member 6 connected to the joint-end pipe 3 is set as a first end 61, and the end away from the joint-end pipe 3 is set as a second end 62. Preferably, first end 61 and connection end pipe 3 adopt threaded connection, easy dismounting, firm in connection. The socket 6 is connected to the above-mentioned connection pipe (not shown) through the second end 62. Preferably, the joint piece 6 and the connecting pipe are connected by adopting a hoop, so that the assembly and disassembly are convenient. In order to make the mud smoothly enter the embedded mud jacking pipe 8 without backflow, the joint piece 6 is also provided with a check valve 7 to prevent the mud from flowing back.

In the quick-operation joint for grouting behind bored concrete pile that this embodiment provided, coupling assembling can dismantle with pre-buried mud jacking pipe 8 and joint spare 6 respectively and be connected, joint spare 6 can dismantle with the connecting pipe and be connected, thereby realize the connection of dismantling of pre-buried mud jacking pipe 8 and connecting pipe, easy dismounting, connect with the welding method that currently adopts, need not to draw temporarily and connect power and transfer equipment, high durability and convenient operation, use manpower sparingly and man-hour, and the mud jacking is over, can carry out complete demolising with this quick-operation joint for mud jacking grouting behind bored concrete pile, do not destroy the joint design, need not operations such as polishing, and can continue to use at follow-up stake position, and the cost is saved.

It should be noted that the foregoing is only a preferred embodiment of the present invention and the technical principles applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.

Claims

1. The utility model provides a bored concrete pile post-grouting quick-operation joint for slip casting which characterized in that includes:

the connecting assembly is in a cylindrical shape with one open end, the open end of the connecting assembly is detachably connected and communicated with the embedded grouting pipe (8), a connecting end pipe (3) is arranged on the side wall of the connecting assembly, and the connecting end pipe (3) is communicated with the inner cavity of the connecting assembly;

joint spare (6), the joint spare is both ends open-ended tube-shape, the first end (61) of joint spare (6) with connecting end pipe (3) are kept away from the one end of coupling assembling can be dismantled and connect and communicate, the second end (62) of joint spare (6) are configured to can dismantle with the connecting pipe and are connected and communicate, connecting pipe and mud container intercommunication, be equipped with check valve (7) on joint spare (6).

2. The quick joint for grouting after a cast-in-place pile according to claim 1, wherein the connecting assembly comprises a first half cylinder (1) and a second half cylinder (2), two sides of the first half cylinder (1) which are axially parallel to each other are respectively provided with a first connecting portion (11) in a protruding manner, two sides of the second half cylinder (2) which are axially parallel to each other are respectively provided with a second connecting portion (21) in a protruding manner, and the first connecting portions (11) and the second connecting portions (21) are detachably and fixedly connected.

3. The quick coupling for post-grouting according to claim 2, characterized in that the first connecting portion (11) and the second connecting portion (21) are both flange structures capable of being butted against each other.

4. The quick coupling for post-grouting according to claim 2, characterized in that the first connecting portion (11) and the second connecting portion (21) are connected by a bolt.

5. The quick coupling for post-grouting according to claim 1, characterized in that the connecting end pipe (3) is integrally formed with the connecting member.

6. The quick coupling for grouting after a cast-in-place pile according to claim 1, further comprising a first sealing member (4), wherein the first sealing member (4) is arranged between the embedded grouting pipe (8) and the connecting assembly.

7. The quick coupling for post-grouting according to claim 2, further comprising a second seal (5), wherein the second seal (5) is disposed between the first half cylinder (1) and the second half cylinder (2).

8. The quick coupling for post-grouting according to claim 7, characterized in that the second seal (5) is U-shaped.

9. The quick coupling for post-grouting according to claim 1, characterized in that the coupling piece (6) is threadedly connected to the connection-end pipe (3).

10. The quick coupling for post-grouting according to claim 1, characterized in that the coupling piece (6) is connected to the connecting pipe by a hoop.