CN211596777U

CN211596777U - Rotary spraying reinforcement spray head and reinforcing device while drilling formed by same

Info

Publication number: CN211596777U
Application number: CN201921984190.XU
Authority: CN
Inventors: 刘更宁
Original assignee: Guangdong Dishan Foundation Engineering Co ltd
Current assignee: Guangdong Dishan Foundation Engineering Co ltd
Priority date: 2019-11-15
Filing date: 2019-11-15
Publication date: 2020-09-29
Anticipated expiration: 2029-11-15

Abstract

The utility model discloses a spout soon and consolidate shower nozzle and along with boring reinforcing apparatus who constitutes thereof, it spouts the layer soon including consolidating a section of thick bamboo, filling tube and at least one, consolidate and be equipped with the orifice on the section of thick bamboo, the filling tube is including interior filling tube and outer filling tube, the outside of filling tube including the pipe box is established to outer injection, spout the layer soon including at least a spray tube, the spray tube includes inner tube and outer tube, outer pipe box is established in the inner tube outside, inner tube and interior filling tube intercommunication, outer tube and outer filling tube intercommunication, the both ends of outer tube are connected to the orifice through outer nozzle respectively. The utility model discloses it is fixed with the rig to consolidate the shower nozzle with the rotation, and the rotatory shower nozzle of consolidating is along with the drilling machine down and rotatory, pours into concrete thick liquid and accelerator into the spray tube through the filling tube into, and concrete thick liquid and accelerator can spout uniformly and permeate in order to consolidate the pore wall in the pore wall of just boring establishing from the orifice. The utility model not only improves the stability of the structure in the hole wall and ensures the construction safety; the construction process is simplified, the hole wall can be reinforced while the pile hole is drilled, the construction cost is reduced, and the construction period is shortened.

Description

Rotary spraying reinforcement spray head and reinforcing device while drilling formed by same

Technical Field

The utility model relates to a spout soon and consolidate shower nozzle among the construction field to and a reinforcing apparatus along with boring.

Background

When cast-in-place piles, anchor rods, geological exploration, various pipeline crossing and other projects are used for forming holes in soil layers, hole collapse is often caused. In order to avoid the hole collapse phenomenon, the hole wall is often reinforced by pouring concrete during hole digging. Usually, after drilling a hole with a certain length, pouring concrete on the section of the hole wall, and after the concrete is solidified, drilling the hole continuously. Although the method can ensure safe construction, the process of pouring concrete in the hole is complex and time-consuming, the cost is high, and the influence on the engineering period is great.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to solve one of the technical problem that exists among the prior art at least, provide a spout soon and consolidate the shower nozzle, it can be convenient, pour the concrete in to the pore wall uniformly.

And provides a reinforcing device while drilling, which can greatly shorten the engineering period.

According to an embodiment of the first aspect of the present invention, there is provided a jet grouting reinforcement nozzle, which includes a reinforcement cylinder, the reinforcement cylinder can be attached to a hole wall, and at least two jet holes are provided on a side surface of the reinforcement cylinder; the injection pipe comprises an inner injection pipe and an outer injection pipe, and the outer injection pipe is sleeved on the outer side of the inner injection pipe; at least one spouts the layer soon, spout the layer including an at least spray tube soon, the spray tube includes inner tube and outer tube, the outer pipe box is established in the inner tube outside, inner tube and interior injection pipe intercommunication, outer tube and outer injection pipe intercommunication, the both ends of outer tube are connected to the orifice through outer nozzle respectively.

According to the utility model discloses first aspect embodiment, furtherly, outer nozzle is coniform, outer nozzle's path end is connected with the orifice.

According to the utility model discloses an in the embodiment of the first aspect, furtherly, the both ends of inner tube are equipped with the cone cover respectively, be equipped with at least one blowout port on the side of cone cover.

According to the utility model discloses an in the embodiment of the first aspect, furtherly, spout spray tube quantity in the layer soon and be more than two, communicate between each inner tube in the layer is spouted soon to same, and each outer tube intercommunication between the layer is spouted soon to same.

According to the utility model discloses the first aspect embodiment, furtherly, the quantity of spouting the layer soon is more than two-layer, outer filling tube and all outer tubes intercommunication, interior filling tube and all inner tubes intercommunication.

According to the utility model discloses the embodiment of the first aspect, furtherly, the one end that the spin-spray layer was kept away from to the filling tube is equipped with connecting portion, connecting portion are equipped with the bell mouth, the path end and the outer filling tube intercommunication of bell mouth, be equipped with the internal thread in the bell mouth.

According to the utility model discloses a second aspect embodiment provides a strengthening device along with boring, and it includes the rig and spouts the reinforcement shower nozzle soon, the rig is fixed in the bottom surface of rotatory reinforcement shower nozzle.

The utility model has the advantages that: the utility model discloses it is fixed with the rig to consolidate the shower nozzle with the rotation, and the rotatory shower nozzle of consolidating is along with the drilling machine down and rotatory, pours into concrete thick liquid and accelerator into the spray tube through the filling tube into, and concrete thick liquid and accelerator can spout uniformly and permeate in order to consolidate the pore wall in the pore wall of just boring establishing from the orifice. The utility model not only improves the stability of the structure in the hole wall and ensures the construction safety; the construction process is simplified, the hole wall can be reinforced while the pile hole is drilled, the construction cost is reduced, and the construction period is shortened.

Drawings

In order to more clearly illustrate the technical solution in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below. It is clear that the described figures represent only some embodiments of the invention, not all embodiments, and that a person skilled in the art can also derive other designs and figures from these figures without inventive effort.

FIG. 1 is a top view of the reinforced nozzle for the jet grouting of the present invention;

FIG. 2 is a cross-sectional view of section a-a of FIG. 1;

FIG. 3 is an enlarged schematic view of circle b in FIG. 2;

FIG. 4 is a front cross-sectional view of the reinforcing apparatus while drilling of the present invention;

FIG. 5 is a schematic diagram of the reinforcing construction method while drilling of the present invention.

Detailed Description

This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element 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.

In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

Example one

Referring to fig. 1 to 2, the jet-grouting reinforcement nozzle in the present embodiment includes a reinforcement cylinder 10, an injection pipe 20, and at least one jet-grouting layer. In this embodiment, it is preferable that the number of the spin-on layers is two. The rotary spraying layer comprises a spray pipe 30, and the spray pipes 30 of the two rotary spraying layers are orthogonally distributed. The nozzle 30 includes an inner tube 31 and an outer tube 32, the outer tube 32 is sleeved outside the inner tube 31, the two ends of the outer tube 32 are provided with outer nozzles 321, and correspondingly, the side surface of the reinforcing cylinder 10 is provided with four nozzle holes. The outer nozzles 321 of the outer tube 32 are connected to the corresponding nozzle holes, respectively. The injection pipe 20 comprises an inner injection pipe 21 and an outer injection pipe 22, the outer injection pipe 22 is sleeved on the outer side of the inner injection pipe 21, injection holes are respectively arranged on the side walls of the inner pipe 31 and the outer pipe 32, and the injection holes are all located at the circle center of the reinforcing cylinder 10. The outer injection pipe 22 penetrates and is communicated with the injection hole of the upper outer pipe 32 and then is communicated with the injection hole of the lower outer pipe 32, and the inner injection pipe 21 is similar to the outer injection pipe.

Further preferably, referring to fig. 3, the outer nozzle 321 has a conical shape, and the small diameter end of the outer nozzle 321 is connected to the nozzle hole. Since the outer nozzle 321 is conical, when the slurry is ejected from the outer tube 32 through the outer nozzle 321 to the nozzle hole, the flow pressure increases, and the high-speed slurry can better penetrate into the hole wall. Conical covers 311 are provided at both ends of the inner tube 31, and preferably, four discharge ports 312 are provided on the side surfaces of the conical covers 311. The four ejection ports 312 are evenly arranged in the circumferential direction of the conical cover 311, the ejection ports 312 each facing the inner wall of the outer nozzle 321. The accelerator is sprayed into the outer nozzle 321 through the spraying port 312 and is uniformly mixed with the concrete slurry, so that the rapid forming of the hole wall protection structure is ensured. The shape of the conical shroud 311 matches the shape of the outer nozzle 321.

In a further preferred embodiment, a connecting portion 40 is provided at an end of the injection pipe 20 away from the spin-spray layer, the connecting portion 40 is provided with a tapered hole, a small diameter end of the tapered hole communicates with the outer injection pipe 22, and an internal thread is provided in the tapered hole. The injection pipe 20 may be connected to the concrete grout supply device and the accelerator supply device through connection portions.

Example two

Referring to fig. 4, the reinforcing device while drilling in the embodiment includes a drilling machine 50 and a jet grouting reinforcing nozzle, the drilling machine 50 is fixed on the bottom surface of the rotary reinforcing nozzle, the diameter of the top of the drilling machine 50 is equal to the outer diameter of the reinforcing cylinder 10, so that the reinforcing cylinder 10 can be tightly attached to the hole wall of the drilled part and reinforced while descending along with the drilling machine; and after drilling is finished, the reinforcing device while drilling can be taken out of the pile hole conveniently.

Referring to fig. 5, the reinforcement while drilling construction method includes the following steps:

A. the concrete grout supply device is connected to the outer injection pipe 22, and the accelerator supply device is connected to the inner injection pipe 21. The concrete slurry and the accelerator enter the outer pipe 32 and the inner pipe 31 separately through the outer injection pipe 22 and the inner injection pipe 21, respectively, and are mixed with the concrete slurry in the outer nozzle 321 until the accelerator is sprayed out from the spray port 312 of the conical cover 311, and are sprayed to the hole wall together. The structure of the injection pipe 20 and the spray pipe 30 prevents the quick setting agent and the concrete slurry from being mixed early to block the pipeline.

B. And starting the drilling machine 50 and enabling the drilling machine 50 to descend, starting the concrete slurry supply device and the accelerator supply device when the top end of the reinforcing cylinder 10 is immersed into the pile hole, at the moment, enabling the drilling machine 50 to pause descending for 30-60 seconds, rotating the reinforcing spray head while drilling, and performing wall protection and reinforcement on the hole wall at the top end to ensure the stability of the structure of the hole wall at the top. And then the drilling machine 50 is recovered to normally descend, the rotating reinforcing spray head descends along with the drilling machine 50 and rotates, and the mixed liquid of the concrete slurry and the accelerator is sprayed to the drilled hole wall. The reinforcing cylinder 10 rotates close to the hole wall, so that the concrete slurry and the accelerator can be ensured to permeate into the hole wall, the thickness of the reinforcing structure is uniform, and the structure in the hole wall is regular. And adjusting the descending speed of the drilling machine to be about 0.05-0.2 m/s, so that the descending speed of the reinforcing cylinder 10 is matched with the solidification speed of the concrete slurry on the hole wall.

While the preferred embodiments of the present invention have been described in detail, it will be understood by those skilled in the art that the invention is not limited to the details of the embodiments shown, but is capable of various modifications and substitutions without departing from the spirit of the invention.

Claims

1. The utility model provides a spout soon and consolidate shower nozzle which characterized in that includes:

the reinforcing cylinder (10), the reinforcing cylinder (10) can be attached to the hole wall, and at least two spray holes are formed in the side face of the reinforcing cylinder (10);

the injection pipe (20), the said injection pipe (20) includes inner injection pipe (21) and outer injection pipe (22), the said outer injection pipe (22) is set up in the outside of the inner injection pipe (21);

at least one spouts the layer soon, spout the layer including an at least spray tube (30) soon, spray tube (30) include inner tube (31) and outer tube (32), inner tube (31) outside is established in outer tube (32) cover, inner tube (31) and interior notes pipe (21) intercommunication, outer tube (32) and outer notes pipe (22) intercommunication, the both ends of outer tube (32) are connected to the orifice through outer nozzle (321) respectively.

2. The jet grouting reinforced spray head of claim 1, wherein: the outer nozzle (321) is conical, and the small-diameter end of the outer nozzle (321) is connected with the spray hole.

3. The jet grouting reinforced spray head according to claim 1 or 2, characterized in that: the two ends of the inner pipe (31) are respectively provided with a conical cover (311), and the side surface of the conical cover (311) is provided with at least one spray outlet (312).

4. The jet grouting reinforced spray head of claim 1, wherein: the number of the spray pipes (30) in the rotary spraying layer is more than two, the inner pipes (31) in the same rotary spraying layer are communicated, and the outer pipes (32) in the same rotary spraying layer are communicated.

5. The jet grouting reinforced spray head of claim 1 or 4, characterized in that: the number of the rotary spraying layers is more than two, the outer injection pipes (22) are communicated with all the outer pipes (32), and the inner injection pipes (21) are communicated with all the inner pipes (31).

6. The jet grouting reinforced spray head of claim 1, wherein: one end of the injection pipe (20) far away from the rotary spraying layer is provided with a connecting part (40), the connecting part (40) is provided with a taper hole, the small-diameter end of the taper hole is communicated with the outer injection pipe (22), and an internal thread is arranged in the taper hole.

7. A reinforcing device while drilling is characterized in that: the rotary spraying reinforcement spray head comprises a drilling machine (50) and the rotary spraying reinforcement spray head as claimed in any one of claims 1-6, wherein the drilling machine (50) is fixed on the bottom surface of the rotary spraying reinforcement spray head.