CN114517644A

CN114517644A - Novel high-pressure jet grouting pile drill rod system

Info

Publication number: CN114517644A
Application number: CN202210259169.3A
Authority: CN
Inventors: 李洪云; 何若许; 赵建华
Original assignee: Jiangsu Yonglian Jingzhu Construction Group Co ltd
Current assignee: Jiangsu Yonglian Jingzhu Construction Group Co ltd
Priority date: 2022-03-16
Filing date: 2022-03-16
Publication date: 2022-05-20

Abstract

The application discloses novel high pressure jet grouting pile drill rod system, including coaxial drill bit, air hammer pump, shotcrete pipe, connector, drilling rod, the thick liquid head of dismantling in proper order that connects, the inside of shotcrete pipe, connector, drilling rod, the thick liquid head of advancing is formed with first inner tube, second inner tube, third inner tube, the fourth inner tube of coaxial setting respectively, between shotcrete pipe and the first inner tube between connector and the second inner tube between drilling rod and the third inner tube advance and be formed with first air passage, second air passage, third air passage, fourth air passage between thick liquid head and the fourth inner tube respectively, one side of shotcrete pipe is formed with the intercommunication the inside spouting nozzle of first inner tube. The invention realizes the integration of drilling and grouting, can realize grouting operation while drilling, and operates the drilling and grouting sequence according to the actual condition.

Description

Novel high-pressure jet grouting pile drill rod system

Technical Field

The application relates to foundation construction, in particular to a novel high-pressure jet grouting pile drill rod system.

Background

In the prior art, the drilling and grouting are generally implemented respectively by adopting a structure that the drilling and the grouting are separated, the drilling is firstly carried out, and then the grouting technology is adopted, so that the effect is poor.

Disclosure of Invention

The invention aims to provide a novel high-pressure jet grouting pile drill rod system.

In order to achieve the above object, the present invention provides the following technical solutions.

The embodiment of the application discloses novel high pressure jet grouting pile drill rod system, including coaxial drill bit, air hammer pump, shotcrete pipe, connector, drilling rod, the head of advancing that can dismantle the connection in proper order, the inside of shotcrete pipe, connector, drilling rod, the head of advancing is formed with first inner tube, second inner tube, third inner tube, the fourth inner tube of coaxial setting respectively, between shotcrete pipe and the first inner tube between connector and the second inner tube between drilling rod and the third inner tube advance and be formed with first air passage, second air passage, third air passage, fourth air passage between head and the fourth inner tube respectively, one side of shotcrete pipe is formed with the intercommunication the inside spouting nozzle of first inner tube.

Preferably, in the novel high-pressure jet grouting pile drill pipe system, the drill bit surface is formed with drill teeth for crushing.

Preferably, in the novel high-pressure jet grouting pile drill rod system, the drill bit, the air hammer pump, the guniting pipe, the connector, the drill rod and the grout inlet head are sequentially connected in a threaded sealing manner.

Preferably, in the novel high-pressure jet grouting pile drill rod system, the first inner pipe, the second inner pipe, the third inner pipe and the fourth inner pipe are sequentially connected in a thread sealing manner.

Preferably, in the novel high-pressure jet grouting pile drill rod system, the slurry sequentially passes through the fourth inner pipe, the third inner pipe, the second inner pipe, the first inner pipe and the slurry nozzle.

Preferably, in the novel high-pressure jet grouting pile drill rod system, air sequentially passes through the fourth air channel, the third air channel, the second air channel and the first air channel and then acts on the air hammer pump.

Preferably, in the above-mentioned novel high-pressure jet grouting pile drill rod system, a connecting body is respectively formed between the slurry spraying pipe and the first inner pipe, between the connector and the second inner pipe, between the drill rod and the third inner pipe, and between the slurry inlet head and the fourth inner pipe.

Compared with the prior art, the technical scheme of the invention has the advantages that the drilling and the filling are integrated, the grouting operation can be realized while drilling, and the drilling and the filling sequence can be operated according to the actual condition.

Drawings

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

FIG. 1 is an exploded view of a novel high pressure jet grouting pile drill pipe system according to an embodiment of the present invention;

FIG. 2 is an enlarged view of FIG. 1 at A;

FIG. 3 is an enlarged view of FIG. 1 at B;

figure 4 is a cross-sectional view of a connector in an embodiment of the invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described in detail below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art.

Referring to fig. 1-4, a novel high-pressure jet grouting pile drill pipe system 100 includes a drill bit 101, an air hammer pump 102, a guniting pipe 103, a connector 104, a drill pipe 105, and a grout inlet head 106, which are coaxially detachably connected in sequence, wherein a first inner pipe, a second inner pipe 107, a third inner pipe 108, and a fourth inner pipe 109 are respectively formed inside the guniting pipe 103, the connector 104, the drill pipe 105, and the grout inlet head 106, which are coaxially arranged, a first air passage 110, a second air passage 111, a third air passage 112, and a fourth air passage 113 are respectively formed between the guniting pipe 103 and the first inner pipe, between the connector 104 and the second inner pipe 107, between the drill pipe 105 and the third inner pipe 108, and between the grout inlet head 106 and the fourth inner pipe 109, and a guniting nozzle 114 communicated with the inside of the first inner pipe is formed on one side of the guniting pipe 103. The drill bit 101, the air hammer pump 102, the guniting pipe 103, the connector 104, the drill rod 105 and the grout inlet head 106 are sequentially connected in a threaded sealing manner. The first inner pipe, the second inner pipe 107, the third inner pipe 108 and the fourth inner pipe 109 are sequentially connected in a thread sealing manner. The slurry passes through a fourth inner pipe 109, a third inner pipe 108, a second inner pipe 107, a first inner pipe and a slurry spraying nozzle 114 in sequence. The air passes through the fourth air passage 113, the third air passage 112, the second air passage 111, and the first air passage 110 in sequence, and then acts on the air hammer pump 102.

In the embodiment, the drilling and the filling are integrated, the grouting operation can be realized while drilling, and the drilling and the filling sequence is operated according to the actual condition. In the technical scheme, the air and slurry channels are separated, the slurry flows along the axis, the air of the air hammer pump flows along the annular air channel, the drilling and the irrigation are unified, the drilling and the irrigation can be carried out simultaneously, the drilling and the irrigation can be carried out firstly, and the selection can be freely carried out.

Further, the surface of the drill bit 101 is formed with teeth 115 for crushing.

In this embodiment, for breaking stone.

Further, connecting bodies 116 are formed between the shotcrete pipe 103 and the first inner pipe, between the connector 104 and the second inner pipe 107, between the drill pipe 105 and the third inner pipe 108, and between the grout inlet head 106 and the fourth inner pipe 109, respectively.

In the embodiment, slurry flows through the shaft center cavity, gas flows through the outer side, the inner pipe and the outer pipe of each pipe body need to be connected and fixed through the connecting bodies, and meanwhile, air passages are formed in the connecting bodies to ventilate.

The technical scheme has simple and easy structure, improves the drilling speed of the high-pressure jet grouting pile and improves the construction efficiency.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The foregoing is illustrative of the present disclosure and it will be appreciated by those skilled in the art that changes may be made in this embodiment without departing from the principles of the disclosure, the scope of which is defined by the appended claims.

Claims

1. The utility model provides a novel high pressure jet grouting pile drilling rod system, its characterized in that, including coaxial drill bit, air hammer pump, whitewashing pipe, connector, drilling rod, the head of advancing that can dismantle the connection in proper order, the inside of whitewashing pipe, connector, drilling rod, the head of advancing is formed with first inner tube, second inner tube, third inner tube, the fourth inner tube of coaxial setting respectively, between whitewashing pipe and the first inner tube between connector and the second inner tube between drilling rod and the third inner tube advance and be formed with first air passage, second air passage, third air passage, fourth air passage between head and the fourth inner tube respectively, one side of whitewashing pipe is formed with the intercommunication the inside spouting nozzle of first inner tube.

2. The novel high-pressure jet grouting pile drill pipe system as claimed in claim 1, wherein the drill bit surface is formed with drill teeth for crushing.

3. The novel high-pressure jet grouting pile drill pipe system as claimed in claim 1, wherein the drill bit, the air hammer pump, the guniting pipe, the connector, the drill pipe and the grout inlet head are sequentially connected in a threaded sealing manner.

4. The novel high-pressure jet grouting pile drill pipe system as claimed in claim 1, wherein the first inner pipe, the second inner pipe, the third inner pipe and the fourth inner pipe are sequentially connected through thread sealing.

5. The novel high-pressure jet grouting pile drill pipe system as claimed in claim 1, wherein slurry sequentially passes through the fourth inner pipe, the third inner pipe, the second inner pipe, the first inner pipe and the slurry nozzle.

6. The novel high-pressure jet grouting pile drill pipe system as claimed in claim 1, wherein gas acts on the air hammer pump after sequentially passing through the fourth air channel, the third air channel, the second air channel and the first air channel.

7. The novel high-pressure jet grouting pile drill pipe system as claimed in claim 1, wherein connecting bodies are respectively formed between the jet grouting pipe and the first inner pipe, between the connector and the second inner pipe, between the drill pipe and the third inner pipe, and between the grout inlet head and the fourth inner pipe.