CN219281757U

CN219281757U - Curve drilling grouting system based on high-pressure hose and double-machine linkage

Info

Publication number: CN219281757U
Application number: CN202320694289.6U
Authority: CN
Inventors: 张淼; 侯昌林; 陈仁朋; 康馨; 刘源; 盛旭; 杨文峰; 李明; 孙左帅; 王远森; 李根营
Original assignee: Hunan University
Current assignee: Hunan University
Priority date: 2023-04-03
Filing date: 2023-04-03
Publication date: 2023-06-30
Anticipated expiration: 2033-04-03

Abstract

The utility model discloses a curve drilling grouting system based on linkage of a high-pressure hose and a double machine, which comprises a guide drill rod, a connector, an MJS drill bit, a grouting pipe and the high-pressure hose; the steering drill rod is connected with the MJS drill bit through a connector; the connector comprises a connector head, a connector body and a connecting sheet; the connector comprises a connector body, a connecting piece, a fixing table, a fixing plate and a fixing plate, wherein the bolt is fixedly arranged in the connector body; the connecting piece is provided with a pin hole, and the MJS drill bit is clamped into the pin hole through a pin shaft so as to be fixed with the connector; the grouting pipes are connected through high-pressure hoses. The utility model has the beneficial effects that: the horizontal directional drilling machine and the MJS grouting machine can be linked, grouting reinforcement construction is completed in a double-machine linkage mode, the safety of an original tunnel is greatly guaranteed, and the requirement of an underground space on the larger diameter of a reinforcement area can be met.

Description

Curve drilling grouting system based on high-pressure hose and double-machine linkage

Technical Field

The utility model relates to the technical field of underground structure construction, in particular to a curve drilling grouting system based on high-pressure hose and double-machine linkage.

Background

Due to the shortage of urban space on the ground at the present stage, underground urban space is greatly developed as a future trend. Nowadays, urban underground pipe networks and tunnel networks are gradually concentrated, soil layers are loosened due to underground pipe construction and shield construction, and serious accidents such as collapse and cracking of superstructure, tunnels, pavement and the like are caused.

The traditional shield excavation can form disturbance influence on the existing tunnel, so that reinforcement between a newly built tunnel and an established tunnel is needed, but the traditional grouting reinforcement technology generally adopts a ground straight hole mode, and hole distribution is difficult. Because the underground pipe network is complex, if a certain area under the ground is required to be horizontally grouting, a vertical shaft can only be excavated on the ground, and then the horizontal grouting is carried out, so that the construction method is difficult to construct, high in cost and high in requirements on construction sites, and can influence the surrounding environment and traffic; and the underground shield synchronous grouting and shield advanced pipe canopy grouting technology has narrow construction space, limited reinforcement range and difficult engineering progress control due to cross operation during site construction. Traditional grouting is large in disturbance to soil, rapid increase of pressure in the ground is easy to cause soil bulge, and damage is caused to an upper building structure or a underground pipe network, a tunnel and the like, so that the working performance of the system is influenced.

Disclosure of Invention

The utility model discloses a curve drilling grouting system based on high-pressure hose and double-machine linkage, which reduces disturbance of later underground construction on tunnel and urban main building by combining a directional drilling technology and an MJS construction method grouting technology (MetroJetSystem), and ensures safety of an upper building structure around a grouting area, thereby effectively solving at least one technical problem related to the background technology.

In order to achieve the above purpose, the technical scheme of the utility model is as follows:

the curve drilling grouting system based on the linkage of the high-pressure hose and the double machines is characterized by comprising a guide drill rod, a connector, an MJS drill bit, a grouting pipe and the high-pressure hose; the steering drill rod is connected with the MJS bit through the connector; the connector comprises a connector head connected with the guide drill rod, a connector body for fixing the connector head and a connecting sheet; the connector comprises a connector body, wherein a bolt is fixedly arranged in the connector body, a fixing table is arranged in the middle of the bolt, two connecting sheets are respectively arranged on two sides of the fixing table, a pin hole is formed in each connecting sheet, and an MJS drill bit is clamped into the pin hole through a pin shaft to be fixed with the connector; the grouting pipes are connected through the high-pressure hoses.

As a preferable improvement of the utility model, the utility model further comprises a horizontal directional drilling machine and a grouting drilling machine, wherein one end of a guiding drill rod is connected with the connector, and the other end of the guiding drill rod is connected with the horizontal directional drilling machine; one end of the grouting pipe is connected with the MJS drill bit, and the other end of the grouting pipe is connected with the grouting drilling machine.

As a preferable improvement of the utility model, the grouting pipe and the high-pressure hose are porous pipes and have the same internal structure, and the grouting pipe comprises a mud discharging pipe arranged in the middle, a mud discharging air pipe arranged around the mud discharging pipe, a main spraying air pipe, a cement slurry pipeline, a mud discharging water flow pipe, a pin hole water pipeline, a mud discharging gate control oil pipeline, a data line channel pipe and a reserved hole.

As a preferred improvement of the utility model, the grouting pipe and the high-pressure hose are fixedly connected through a fixing ring piece.

As a preferred development of the utility model, the guiding rod is screwed to the connecting head.

As a preferred improvement of the utility model, the connector body further comprises two nuts, which are provided separately on the outer side of the connecting piece for clamping the connecting piece with the fixing table.

The utility model has the beneficial effects that:

1. the disturbance of the later underground construction to the existing basement, tunnel and city main building can be reduced when the formulated area of the urban underground complex space is reinforced by combining the directional drilling technology with the MJS construction method grouting technology;

2. the high-pressure hose is used for connecting the grouting pipe, so that curve construction of the grouting pipe is realized;

3. one end of the connector is connected by screw threads, and the other end of the connector is connected by pin holes of the pin shafts in a matched manner, so that the connector is firm in connection and convenient to assemble and disassemble;

4. the horizontal directional drilling machine and the MJS grouting machine can be linked through the connector, grouting reinforcement construction is completed in a double-machine linkage mode, the safety of an original tunnel is greatly guaranteed, and the requirement of an underground space on the larger diameter of a reinforcement area can be met.

Drawings

For a clearer description of the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments will be briefly introduced below, it being obvious that the drawings in the description below are only some embodiments of the present utility model, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art, wherein:

FIG. 1 is a schematic illustration of an exploded view of the steering drill rod, connector, and MJS drill bit of the present utility model;

FIG. 2 is a schematic illustration of the connection of the grouting pipe to the high pressure hose of the present utility model;

FIG. 3 is a schematic diagram of the assembled construction of the grouting pipe and the high pressure hose of the present utility model;

FIG. 4 is a schematic cross-sectional view of a grouting pipe according to the present utility model.

Detailed Description

The technical solutions of the embodiments of the present utility model will be clearly and completely described in the following in conjunction with the embodiments of the present utility model, and it is obvious that the described embodiments are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present utility model are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.

Furthermore, descriptions such as those referred to as "first," "second," and the like, are provided for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying an order of magnitude of the indicated technical features in the present disclosure. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In addition, the technical solutions of the embodiments of the present utility model may be combined with each other, but it is necessary to be based on the fact that those skilled in the art can implement the technical solutions, and when the technical solutions are contradictory or cannot be implemented, the combination of the technical solutions should be considered as not existing, and not falling within the scope of protection claimed by the present utility model.

Referring to fig. 1 to 4, the present utility model provides a curved drilling grouting system based on high-pressure hose and dual-machine linkage, which comprises a guiding drill pipe 1, a connector 2, an MJS bit 3, a grouting pipe 4 and a high-pressure hose 5. The guiding drill rod 1 is connected with the MJS drill bit 3 through the connector 2, and a plurality of grouting pipes 4 are connected through the high-pressure hose 5.

Specifically, the connector 2 includes a connector 21 screwed with the guiding drill rod 1, a connector body 22 for fixing the connector 21, and a connecting piece 23. A bolt 221 is fixedly arranged in the connector body 22, a fixing table 2211 is arranged in the middle of the bolt 221, and two connecting pieces 23 are respectively fixedly arranged on the bolt 221 and are positioned on two opposite sides of the fixing table 2211. The connecting piece 23 is provided with a pin hole 231, and the MJS bit 3 is inserted into the pin hole 231 through the pin shaft 31 to connect with the connector 2, and it should be further noted that the connector body 22 further includes two nuts 222 separately arranged on the outer side of the connecting piece 23, and the nuts 222 are screwed with the bolts 221 to clamp the connecting piece 23 on the side surface of the fixed table 2211.

Further, the connector body 22 extends in a direction away from the connector 21 to form two opposite protruding portions 223 disposed at intervals in parallel, and the upper and lower ends of the bolt 221 are respectively and fixedly connected to the two protruding portions 223.

The grouting pipe 4 and the high-pressure hose 5 are porous pipes and have the same internal structure, and comprise a mud discharging pipe 41 arranged in the middle and a mud discharging air pipe 42 arranged around the mud discharging pipe 41, a main spraying air pipe 43, a reserved hole 44, a cement slurry pipeline 45, a mud discharging water flow pipe 46, a pin hole water pipeline 47, a mud discharging gate control oil pipeline 48 and a data line channel pipe 49. Preferably, the number of the air pipes 42 for discharging mud is two, and the grouting pipe 4 and the high-pressure hose 5 are fixedly connected through the fixing ring piece 6.

The utility model also comprises a horizontal directional drilling machine and a grouting drilling machine. One end of the guiding drill rod 1 is connected with the connector 2, and the other end of the guiding drill rod is connected with the horizontal directional drilling machine; one end of the grouting pipe 4 is connected with the MJS drill bit 3, and the other end is connected with the grouting drilling machine.

The application process of the utility model comprises the following steps: during construction, a pilot bit of the horizontal directional drilling machine is drilled from an earth entering point, passes through a grouting area and is drilled from an earth exiting point; then the pilot bit of the horizontal directional drill is disassembled, and the pilot drill rod is connected with the MJS drill bit through a connector; providing power through a horizontal directional drilling machine, dragging and drawing the connected MJS drill bit to a grouting starting position of a grouting area, and continuously connecting a grouting pipe with a high-pressure hose in the dragging and drawing process, so that the grouting pipe can be bent underground; pulling the MJS drill bit to the grouting end position by providing power through a horizontal directional drilling machine, and simultaneously starting grouting; after grouting construction is completed, the MJS drill bit is pulled out from the unearthed point by providing power through a horizontal directional drilling machine, the connector is detached, and then the grouting pipe is separated from the high-pressure hose.

The utility model has the beneficial effects that:

Although embodiments of the present utility model have been disclosed above, it is not limited to the details and embodiments shown and described, it is well suited to various fields of use for which the utility model would be readily apparent to those skilled in the art, and accordingly, the utility model is not limited to the specific details and illustrations shown and described herein, without departing from the general concepts defined in the claims and their equivalents.

Claims

1. The curve drilling grouting system based on the linkage of the high-pressure hose and the double machines is characterized by comprising a guide drill rod, a connector, an MJS drill bit, a grouting pipe and the high-pressure hose; the steering drill rod is connected with the MJS bit through the connector; the connector comprises a connector head connected with the guide drill rod, a connector body for fixing the connector head and a connecting sheet; the connector comprises a connector body, wherein a bolt is fixedly arranged in the connector body, a fixing table is arranged in the middle of the bolt, two connecting sheets are respectively arranged on two sides of the fixing table, a pin hole is formed in each connecting sheet, and an MJS drill bit is clamped into the pin hole through a pin shaft to be fixed with the connector; the grouting pipes are connected through the high-pressure hoses.

2. The curve drilling grouting system based on the linkage of the high-pressure hose and the double machines as claimed in claim 1, wherein: the device also comprises a horizontal directional drilling machine and a grouting drilling machine, wherein one end of a guiding drill rod is connected with the connector, and the other end of the guiding drill rod is connected with the horizontal directional drilling machine; one end of the grouting pipe is connected with the MJS drill bit, and the other end of the grouting pipe is connected with the grouting drilling machine.

3. The curve drilling grouting system based on the linkage of the high-pressure hose and the double machines as claimed in claim 1, wherein: the grouting pipe and the high-pressure hose are porous pipes and have the same internal structure, and the grouting pipe comprises a mud discharging pipe arranged in the middle, an air pipe for discharging mud, a main jet pipe, a cement slurry pipeline, a water flow pipe for discharging mud, a pin hole water pipeline, a mud discharging gate control oil pipeline, a data line channel pipe and a reserved hole, wherein the mud discharging pipe is arranged around the mud discharging pipe.

4. The curve drilling grouting system based on the linkage of the high-pressure hose and the double machines as claimed in claim 1, wherein: the grouting pipe is fixedly connected with the high-pressure hose through a fixing ring piece.

5. The curve drilling grouting system based on the linkage of the high-pressure hose and the double machines as claimed in claim 1, wherein: the guiding drill rod is in threaded connection with the connector.

6. The curve drilling grouting system based on the linkage of the high-pressure hose and the double machines as claimed in claim 1, wherein: the connector body further comprises two nuts, wherein the nuts are arranged on the outer sides of the connecting pieces respectively and used for clamping the connecting pieces with the fixing table.