CN219262432U

CN219262432U - Arc watering dust device of open-type TBM

Info

Publication number: CN219262432U
Application number: CN202320680852.4U
Authority: CN
Inventors: 郑继光; 宋卿; 杨继雄; 冯兴予; 于希磊; 张引兵; 韩永生; 辛建宁; 张凯; 邰文龙; 谢恒�
Original assignee: Sinohydro Bureau 3 Co Ltd
Current assignee: Sinohydro Bureau 3 Co Ltd
Priority date: 2023-03-30
Filing date: 2023-03-30
Publication date: 2023-06-27
Anticipated expiration: 2033-03-30

Abstract

The utility model discloses an open TBM arc-shaped sprinkling dust settling device which comprises an arc-shaped main sprinkling pipe arranged at the tail part of an upper shield and a plurality of spray heads arranged on the arc-shaped main sprinkling pipe, wherein the arc-shaped main sprinkling pipe is provided with a plurality of auxiliary sprinkling pipes for the spray heads to be installed, the auxiliary sprinkling pipes are bent pipes, one end of each arc-shaped main sprinkling pipe is provided with a blocking head, the other end of each arc-shaped main sprinkling pipe is connected with water supply equipment through a water inlet hose, and a valve is arranged on the water inlet hose. The utility model has reasonable structural design, the arc-shaped main spray pipe with a plurality of spray heads is arranged at the tail part of the upper shield, mist spray can be carried out on surrounding rocks outside the shield through the spray heads, water flows automatically flow to the bottom of the host along the surface of the excavated round rock wall, and planar water flow formed on the surface of the rock fully adsorbs rock powder diffused from the inside of the shield, so that the rock powder is prevented from diffusing into a hole from the TBM along with the running of the cutterhead, the dust falling purpose is achieved, and meanwhile, the space above the host part or the shield is not occupied.

Description

Arc watering dust device of open-type TBM

Technical Field

The utility model belongs to the technical field of tunnel tunneling, and particularly relates to an open TBM arc-shaped sprinkling dust device.

Background

When the open TBM tunneling machine is adopted for tunnel construction, a dust-falling and cooling sprinkler is arranged in a cutterhead of the tunneling machine. However, in construction, when TBM digs III class and above surrounding rock, a large amount of rock powder is generated when the cutterhead breaks the rock due to high strength and good integrity of the surrounding rock, the water scattering device in the cutterhead cannot achieve the purpose of completely dust fall, and the water scattering device diffuses into a hole from a shield on the TBM along with the operation of the cutterhead to form a disadvantageous construction environment. Meanwhile, the sprinkling dust-settling device inside the cutterhead is relatively close to the tunnel face, broken stone and rock chips and the like are often arranged in the cutterhead to damage and block the sprinkler head of the sprinkling device, and the sprinkling effect inside the cutterhead is reduced. Therefore, it is necessary to provide a water-spraying dust-settling device capable of preventing rock powder from diffusing into a hole from a shield on a TBM along with the operation of a cutter head.

Disclosure of Invention

Aiming at the defects in the prior art, the utility model provides the arc-shaped spraying dust settling device of the open TBM, which has reasonable structural design, and the arc-shaped main spraying pipe with a plurality of spray heads is arranged at the tail part of the upper shield, so that mist spraying can be carried out on surrounding rocks outside the shield through the spray heads, water flows automatically flow to the bottom of a host along the surface of a circular rock wall excavated, planar water flow formed on the surface of the rock fully adsorbs rock powder diffused from the inside of the shield, the rock powder is prevented from diffusing into a hole from the upper shield of the TBM along with the operation of a cutter head, the dust settling purpose is achieved, and meanwhile, the space above the host or the shield is not occupied.

In order to solve the technical problems, the utility model adopts the following technical scheme: an open-type TBM arc watering dust device, its characterized in that: including setting up at last shield afterbody and with last shield shape assorted arc main spray pipe and setting up a plurality of shower nozzles on the arc main spray pipe, be provided with a plurality of vice spray pipes that supply the shower nozzle to install on the arc main spray pipe, vice spray pipe is the pipe of buckling and its and arc main spray pipe are linked together, the one end of arc main spray pipe is provided with the shutoff head, the other end of arc main spray pipe is connected with water supply equipment through the hose that intakes, be provided with the valve on the hose that intakes, one side of going up the shield is kept away from to the upper end orientation of vice spray pipe is laid, the upper end of vice spray pipe extends to the afterbody outside of last shield.

Foretell an open-type TBM arc watering dust device, its characterized in that: the arc main spray pipe is arranged at the inner side of the tail part of the upper shield through the buckle piece.

Foretell an open-type TBM arc watering dust device, its characterized in that: the buckle spare is the saddle card, be provided with the fastener of at least three group's confession saddle card installation on the upper shield, every group the fastener all includes two fastening bolts that set up on the upper shield inside wall.

Foretell an open-type TBM arc watering dust device, its characterized in that: the head of the fastening bolt is fixed on the inner side wall of the upper shield, and the screw end of the fastening bolt passes through the through hole on one side of the fastener and is in threaded connection with the locking nut.

Foretell an open-type TBM arc watering dust device, its characterized in that: the plugging head comprises a plugging cap and an external thread connecting column arranged on one side of the plugging cap, and an internal thread matched with the external thread connecting column is arranged inside one end of the arc-shaped main spraying pipe.

Foretell an open-type TBM arc watering dust device, its characterized in that: and a sealing ring is arranged between the blocking head and the arc-shaped main spraying pipe.

Foretell an open-type TBM arc watering dust device, its characterized in that: the other end of the arc-shaped main spray pipe is connected with a water inlet hose through a quick connector.

Foretell an open-type TBM arc watering dust device, its characterized in that: the lower end of the auxiliary spray pipe is connected to the arc-shaped main spray pipe through a pipeline joint.

Foretell an open-type TBM arc watering dust device, its characterized in that: the spray head is arranged at the upper end of the auxiliary spray pipe through a threaded pipe joint.

Compared with the prior art, the utility model has the following advantages:

1. according to the utility model, the arc-shaped main spray pipe with the plurality of spray heads is arranged at the tail part of the upper shield, the spray heads are used for spraying water on surrounding rocks outside the shield, the water flows automatically to the bottom of the main machine along the surface of the excavated round rock wall, and the planar water flow formed on the rock surface fully adsorbs rock powder diffused from the inside of the shield, so that the aim of dust fall is achieved.

2. The utility model can ensure that the arc-shaped main spray pipe is attached to the inner side wall of the upper shield by matching the shape of the arc-shaped main spray pipe with the shape of the upper shield, so that the sprinkling dust-settling device does not occupy the space above the main machine part or the shield, the arc-shaped main spray pipe has certain rigidity, can bear the water inlet pressure, is simple and convenient to operate, does not influence other works, and is convenient to install and overhaul.

3. According to the utility model, the arc-shaped main spraying pipe is provided with the plurality of auxiliary spraying pipes for installing the spray heads, and meanwhile, the auxiliary spraying pipes are bent pipes, so that the spray heads can be conveniently located above the rear side of the upper shield, the spraying range can be effectively enlarged, rock powder is further prevented from diffusing into a hole from the TBM upper shield along with the operation of the cutterhead, and a favorable construction environment is ensured to be formed.

In summary, the utility model has reasonable structural design, the arc-shaped main spray pipe with the plurality of spray heads is arranged at the tail part of the upper shield, mist spray can be carried out on surrounding rocks outside the shield through the spray heads, water flows automatically to the bottom of the main machine along the surface of the excavated round rock wall, and planar water flow formed on the surface of the rock fully adsorbs rock powder diffused from the inside of the shield, so that the rock powder is prevented from diffusing into a hole from the upper shield of the TBM along with the operation of the cutterhead, the purpose of dust fall is achieved, and meanwhile, the space above the main machine part or the shield is not occupied.

The technical scheme of the utility model is further described in detail through the drawings and the embodiments.

Drawings

Fig. 1 is a schematic structural view of the present utility model.

Fig. 2 is an enlarged view at a of fig. 1.

Fig. 3 is a graph showing the distribution of the secondary sprinkler tube of the present utility model over the arcuate primary sprinkler tube.

FIG. 4 is a schematic view of the connection structure of the auxiliary spray pipe and the arc-shaped main spray pipe according to the present utility model.

Fig. 5 is a schematic structural view of a stopper according to the present utility model.

Reference numerals illustrate:

1-upper shield; 2-an arc-shaped main spray pipe; 3-a secondary spray pipe;

4-a pipeline joint; 5-a threaded pipe joint; 6, spraying heads;

7, plugging; 7-1, blocking the cap; 7-2-an external threaded connecting column;

8-a water inlet hose; 9-a valve; 10-a clamping piece;

11-fastening bolts; 12-lock nut; 13-a quick connector;

14-arch centering installer.

Detailed Description

As shown in fig. 1 to 5, the utility model comprises an arc-shaped main spray pipe 2 arranged at the tail part of an upper shield 1 and matched with the shape of the upper shield 1, and a plurality of spray heads 6 arranged on the arc-shaped main spray pipe 2, wherein a plurality of auxiliary spray pipes 3 for installing the spray heads 6 are arranged on the arc-shaped main spray pipe 2, the auxiliary spray pipes 3 are bent pipes and are communicated with the arc-shaped main spray pipe 2, one end of the arc-shaped main spray pipe 2 is provided with a blocking head 7, the other end of the arc-shaped main spray pipe 2 is connected with water supply equipment through a water inlet hose 8, a valve 9 is arranged on the water inlet hose 8, the upper ends of the auxiliary spray pipes 3 are arranged towards one side far away from the upper shield 1, and the upper ends of the auxiliary spray pipes 3 extend to the outer side of the tail part of the upper shield 1.

During actual use, through set up the arc main spray pipe 2 that has a plurality of shower nozzles 6 at the afterbody of shield 1, carry out vaporific water spray to the outside country rock of shield through shower nozzle 6, the rivers flow to the host computer bottom along the circular rock wall surface of excavation, and the planar rivers that form on the rock surface fully adsorb the rock powder that spreads from the shield inside, reach the purpose of dust fall.

It should be noted that, through making arc main spray pipe 2 and last shield 1's shape assorted, can make the inside wall setting of shield 1 on the laminating of arc main spray pipe 2 for this watering dust fall device does not encroach on host computer position or shield top space, and arc main spray pipe 2 has certain rigidity and can bear the pressure of intaking, easy and simple to handle does not influence other work, the installation of being convenient for and maintenance.

During concrete implementation, through being provided with a plurality of vice spray pipes 3 that supply shower nozzle 6 to install on arc main spray pipe 2, make vice spray pipe 3 be the kink pipe simultaneously, can be convenient for make shower nozzle 6 be located the rear side top of last shield, and then can effectively enlarge the scope of spraying, further avoid rock dust to follow the operation of blade disc from TBM upper shield diffusion to the hole in, ensure to form favorable construction environment.

During the in-service use, through being provided with shutoff head 7 in the one end of arc owner spray tube 2, when carrying out the downthehole watering, can carry out the shutoff through the one end of shutoff head 7 to arc owner spray tube 2, and then be convenient for spray the normal clear up of process, when need clear up arc owner spray tube 2 inside, can remove shutoff head 7, clear up arc owner spray tube 2, avoid arc owner spray tube 2 to take place to block up.

It should be noted that, the water inlet hose 8 is a water inlet hose, and its size matches with the size of the arc main spray pipe 2, so as to avoid the damage to the arc main spray pipe 2 caused by excessive water inlet pressure.

In the concrete implementation, the valve 9 is an electromagnetic valve, and a constructor can control the opening and closing of the valve in the control room through a controller.

It should be noted that, the convex side of the arc main spraying pipe 2 is tightly attached to the inner side of the upper shield 1, and a certain gap is provided between the concave side of the arc main spraying pipe 2 and the arch centering installer 14 retracted into the shield.

In specific implementation, the auxiliary spraying pipe 3 comprises a lower pipe section connected to the arc-shaped main spraying pipe 2 and an upper pipe section connected to the lower pipe section, an included angle between the lower pipe section and the upper pipe section is an obtuse angle, the lower pipe section is gradually inclined from bottom to top in a direction away from the upper shield 1, and the upper pipe section is gradually inclined from bottom to top in a direction away from the upper shield 1.

In this embodiment, the arc-shaped main spraying pipe 2 is installed inside the tail of the upper shield 1 through the fastening piece 10.

During actual use, the arc-shaped main spray pipe 2 is mounted on the inner side of the upper shield 1 through at least three clamping pieces 10, so that the arc-shaped main spray pipe 2 can be conveniently mounted and dismounted, and the arc-shaped main spray pipe 2 can be replaced in time when damaged.

In this embodiment, as shown in fig. 2, the fastener 10 is a saddle clamp, and at least three groups of fasteners for installing the saddle clamp are disposed on the upper shield 1, and each group of fasteners includes two fastening bolts 11 disposed on an inner sidewall of the upper shield 1.

In actual use, the buckle piece 10 is buckled on the arc-shaped main spray pipe 2, and the fastening bolt 11 does not influence the arch centering installer on the inner side of the shield.

In this embodiment, the head of the fastening bolt 11 is fixed on the inner side wall of the upper shield 1, and the screw end of the fastening bolt 11 passes through the through hole on one side of the fastening member 10 and is in threaded connection with the lock nut 12.

In this embodiment, as shown in fig. 5, the plugging head 7 includes a plugging cap 7-1 and an external threaded connection column 7-2 disposed on one side of the plugging cap 7-1, and an internal thread matched with the external threaded connection column 7-2 is disposed inside one end of the arc-shaped main spray pipe 2.

In this embodiment, a sealing ring is arranged between the plugging head 7 and the arc-shaped main spraying pipe 2.

In this embodiment, the other end of the arc-shaped main spray pipe 2 is connected with the water inlet hose 8 through a quick connector 13.

When in actual use, the arc-shaped main spray pipe 2 is a stainless steel pipe, and two ends of the arc-shaped main spray pipe 2 are respectively flush with two sides of the upper shield 1.

In this embodiment, the lower end of the auxiliary spraying pipe 3 is connected to the arc-shaped main spraying pipe 2 through a pipe joint 4.

In actual use, the arc-shaped main spray pipe 2 is provided with a plurality of water outlets, and the auxiliary spray pipe 3 is arranged on the plurality of water outlets through the pipeline joint 4 in a threaded manner.

In this embodiment, the nozzle 6 is mounted at the upper end of the secondary spray pipe 3 by a threaded pipe joint 5.

In actual use, the spray head 6 can be a spray head for spraying mist water or a spray head for spraying columnar water, and can be replaced according to requirements.

The distance between two adjacent nozzles 6 is controlled to be 30cm to 50 cm.

When the TBM tunneling rock powder is diffused from the upper shield 1, a valve 9 on the water inlet hose 8 is opened to enable a pipeline to be filled with water, and the water is sprayed out from the spray head 6 in a mist form, so that a planar water flow is formed on the excavated rock face, and the rock powder diffused from the interior of the cutterhead can be sealed and adsorbed to diffuse to the rear part of a host machine by utilizing the characteristic that the water has tiny particles, so that bad environments are avoided.

The foregoing description is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, and any simple modification, variation and equivalent structural changes made to the above embodiment according to the technical substance of the present utility model still fall within the scope of the technical solution of the present utility model.

Claims

1. An open-type TBM arc watering dust device, its characterized in that: including setting up arc main spray pipe (2) and setting up a plurality of shower nozzles (6) on arc main spray pipe (2) of last shield (1) afterbody and with last shield (1) shape assorted, be provided with a plurality of vice spray pipe (3) that supply shower nozzle (6) to install on arc main spray pipe (2), vice spray pipe (3) are the bend pipe and its is linked together with arc main spray pipe (2), the one end of arc main spray pipe (2) is provided with shutoff head (7), the other end of arc main spray pipe (2) is connected with water supply equipment through intake hose (8), be provided with valve (9) on intake hose (8), one side of keeping away from last shield (1) is laid to the upper end orientation of vice spray pipe (3), the upper end of vice spray pipe (3) extends to the afterbody outside of last shield (1).

2. An open TBM arcuate watering and dust suppression apparatus as defined in claim 1, wherein: the arc-shaped main spraying pipe (2) is arranged at the inner side of the tail part of the upper shield (1) through the clamping piece (10).

3. An open TBM arcuate watering and dust suppression apparatus as defined in claim 2, wherein: the fastening piece (10) is a saddle clamp, at least three groups of fastening pieces for saddle clamp installation are arranged on the upper shield (1), and each group of fastening pieces comprises two fastening bolts (11) arranged on the inner side wall of the upper shield (1).

4. An open TBM arcuate watering and dust suppression apparatus as defined in claim 3, further comprising: the head of the fastening bolt (11) is fixed on the inner side wall of the upper shield (1), and the screw end of the fastening bolt (11) penetrates through the through hole on one side of the clamping piece (10) and is in threaded connection with the locking nut (12).

5. An open TBM arcuate watering and dust suppression apparatus as defined in claim 1, wherein: the plugging head (7) comprises a plugging cap (7-1) and an external thread connecting column (7-2) arranged on one side of the plugging cap, and one end of the arc-shaped main spraying pipe (2) is internally provided with internal threads matched with the external thread connecting column (7-2).

6. An open TBM arcuate watering and dust suppression apparatus as defined in claim 1, wherein: a sealing ring is arranged between the plugging head (7) and the arc-shaped main spraying pipe (2).

7. An open TBM arcuate watering and dust suppression apparatus as defined in claim 1, wherein: the other end of the arc-shaped main spray pipe (2) is connected with a water inlet hose (8) through a quick connector (13).

8. An open TBM arcuate watering and dust suppression apparatus as defined in claim 1, wherein: the lower end of the auxiliary spraying pipe (3) is connected to the arc-shaped main spraying pipe (2) through a pipeline joint (4).

9. An open TBM arcuate watering and dust suppression apparatus as defined in claim 1, wherein: the spray head (6) is arranged at the upper end of the auxiliary spray pipe (3) through a threaded pipe joint (5).