CN114198109B - Earth pressure balance shield machine and tunneling method thereof - Google Patents
Earth pressure balance shield machine and tunneling method thereof Download PDFInfo
- Publication number
- CN114198109B CN114198109B CN202210149405.6A CN202210149405A CN114198109B CN 114198109 B CN114198109 B CN 114198109B CN 202210149405 A CN202210149405 A CN 202210149405A CN 114198109 B CN114198109 B CN 114198109B
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- mounting
- shield tail
- shield
- fixed
- column
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- 230000005641 tunneling Effects 0.000 title claims abstract description 13
- 238000000034 method Methods 0.000 title claims abstract description 9
- 239000002689 soil Substances 0.000 claims abstract description 6
- 238000003780 insertion Methods 0.000 claims description 22
- 230000037431 insertion Effects 0.000 claims description 22
- 238000009434 installation Methods 0.000 claims description 22
- 238000007789 sealing Methods 0.000 claims description 16
- 229910000831 Steel Inorganic materials 0.000 claims description 14
- 239000010959 steel Substances 0.000 claims description 14
- 238000002347 injection Methods 0.000 claims description 13
- 239000007924 injection Substances 0.000 claims description 13
- 235000013358 Solanum torvum Nutrition 0.000 claims description 10
- 240000002072 Solanum torvum Species 0.000 claims description 10
- 230000000694 effects Effects 0.000 abstract description 3
- 239000004519 grease Substances 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 1
- 230000004308 accommodation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 210000002421 cell wall Anatomy 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000005201 scrubbing Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Images
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
- E21D9/0635—Tail sealing means, e.g. used as end shuttering
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
- E21D9/0607—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining the shield being provided with devices for lining the tunnel, e.g. shuttering
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
- E21D9/08—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining with additional boring or cutting means other than the conventional cutting edge of the shield
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B13/00—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose
- F16B13/04—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front
Abstract
The application relates to a soil pressure balance shield machine and a tunneling method thereof, belonging to the technical field of shield machines, and comprising a shield body, wherein a shield tail is arranged on one side of the shield body, a plurality of first mounting rings are fixed on the inner wall of the shield tail, and a shield tail brush is arranged on each first mounting ring; the shield tail brush comprises a plurality of shield tail brushes, a plurality of mounting grooves are uniformly formed in each first mounting ring, a mounting plate is fixed on each shield tail brush, a mounting block is fixed on each mounting plate, and the mounting blocks are inserted into the mounting grooves; the bottom wall of the mounting block is provided with a containing hole, the wall of the mounting groove is provided with a jack, one end of the inserting column extends out of the containing hole to be inserted with the jack, the first spring is fixed between the inserting column and the wall of the containing hole, the jack downwards penetrates through the first mounting ring, and the inserting column extends out of the first mounting ring; one side of the second spring close to the mounting block is fixed with a butt plate, and the second spring is fixed between the groove walls of the butt plate and the mounting groove far away from the mounting block. This application has the effect of being convenient for change shield tail brush.
Description
Technical Field
The application relates to the technical field of shield tunneling machines, in particular to an earth pressure balance shield tunneling machine and a tunneling method thereof.
Background
The shield machine is a special engineering machine for tunneling. The shield tail brush is an important accessory in shield equipment, and a certain amount of high-quality filler is injected into a clearance formed by fluffy bent steel wires to play a good sealing role between a shield and a segment so as to prevent underground water, outer soil, lining back grouting and the like from flowing into a tunnel.
The long-distance tunneling construction under the high-water-pressure environment is inevitable to cause breakdown or abrasion damage of the shield tail brush due to overhigh external water and soil pressure and synchronous slurry injection pressure, the shield tail cannot play a sealing role, and the shield tail brush needs to be replaced after being damaged. At present, the shield tail brush and the shield tail are welded and fixed, and the old shield tail brush needs to be cut off by a gouging machine and a new shield tail brush needs to be welded when the shield tail brush is replaced.
In view of the above-mentioned related art, the inventor thinks that there is the cutting that needs when the shield tail brush is changed, and it is troublesome to change the shield tail brush.
Disclosure of Invention
In order to replace the shield tail brush, the application provides the earth pressure balance shield machine and the tunneling method thereof.
In a first aspect, the present application provides an earth pressure balance shield machine, which adopts the following technical scheme:
a soil pressure balance shield machine comprises a shield body, wherein a cutter head is arranged on one side of the shield body, a shield tail is arranged on one side, away from the cutter head, of the shield body, a plurality of first mounting rings are fixed on the inner wall of the shield tail, the first mounting rings are uniformly arranged along the length direction of the shield tail, and a shield tail brush is arranged on each first mounting ring;
the shield tail brush is composed of a plurality of shield tail brushes, a plurality of mounting grooves are uniformly formed in each first mounting ring, each mounting groove corresponds to one shield tail brush, a mounting plate is fixed at one end, close to the mounting groove, of each shield tail brush, a mounting block is fixed at one side, close to the mounting groove, of the mounting plate, and the mounting blocks are inserted into the mounting grooves;
a containing hole is formed in the bottom wall of the mounting block, a plug-in component is arranged in the containing hole and comprises a first spring and a plug-in column, a jack is formed in the wall of the mounting groove, one end of the plug-in column extends out of the containing hole to be plugged with the jack, the first spring is fixed between the plug-in column and the wall of the containing hole, the jack penetrates through the first mounting ring downwards, and the plug-in column extends out of the first mounting ring;
the mounting groove is internally provided with a second spring, one side of the second spring, which is close to the mounting block, is fixedly provided with a butt plate, and the second spring is fixed between the butt plate and the groove wall of the mounting block, which is far away from the mounting block.
By adopting the technical scheme, when the shield machine excavates the tunnel, the cutter head rotates to excavate, and the shield body moves forwards; when the shield tail brush is damaged and needs to be replaced, the inserting column is pushed firstly, the first spring is compressed, the inserting column is contracted into the accommodating hole, then the second spring pushes the abutting plate, the abutting plate pushes the mounting block to move towards an outlet of the mounting groove, and then the mounting block is taken out of the mounting groove; when a new shield tail brush is installed, the inserting column is compressed into the accommodating hole, then the installing block is inserted into the installing groove, the installing block extrudes the abutting plate, the second spring is compressed, and after the inserting column is aligned with the inserting hole, the inserting column is inserted into the inserting hole under the action of the first spring, so that the installing block is fixed; the butt board elasticity is given to the second spring, and the butt board supports tight spliced pole, makes the spliced pole be difficult for deviating from the jack, and when taking out the installation piece from the mounting groove, the butt board has thrust to the installation piece, and the taking out of the installation piece of being convenient for is fixed installation piece and shield tail brush through the grafting subassembly, is convenient for install and dismantle the shield tail brush.
Optionally, a thread is arranged on the plug column, a locking nut is connected to one end, far away from the mounting block, of the plug column through a thread, and the locking nut abuts against the first mounting ring.
Through adopting above-mentioned technical scheme, insert the mounting groove with the installation piece after, the plug column stretches out from the jack, lock nut and plug column threaded connection, after screwing up lock nut, lock nut supports tight first collar to the stability of first installation piece has been increased.
Optionally, a sliding groove is formed in a groove wall of the mounting groove, which is provided with the insertion hole, and the sliding groove is connected with one end, far away from the mounting block, of the insertion column in a sliding manner.
Through adopting above-mentioned technical scheme, when inserting the installation piece in the mounting groove, the bottom of grafting post stretches out the holding tank and is arranged in the spout, and the bottom and the spout sliding connection of grafting post are convenient for the installation piece and insert in the mounting groove.
Optionally, a ball is mounted at one end of the insertion column far away from the mounting block.
Through adopting above-mentioned technical scheme, the ball is installed to the one end that the installation piece was kept away from to the grafting post, and the ball has reduced the frictional force between the cell wall of grafting post and spout, the slip of the post of being convenient for pegging graft.
Optionally, one side of the mounting plate, which is close to the first mounting ring, is fixed with two positioning columns, the two positioning columns are respectively located on two sides of the mounting block, and the first mounting ring is provided with positioning holes for the positioning columns to be inserted.
Through adopting above-mentioned technical scheme, insert the mounting block back in the mounting groove, the reference column has increased the stability of mounting panel in inserting the locating hole to the stability of shield tail brush has been increased.
Optionally, two are adjacent all seted up the holding tank on the lateral wall that the mounting panel is close to each other, be fixed with magnet in the holding tank of one of them mounting panel, be fixed with another magnet with the mutual actuation of magnet in the holding tank of another mounting panel.
Through adopting above-mentioned technical scheme, it is fixed through the mutual actuation of two magnet between two adjacent mounting panels to the stability of mounting panel and shield tail brush has been increased.
Optionally, the shield tail is kept away from be fixed with the second collar on the inner wall of the one end of blade disc, be fixed with a plurality of steel plate brushes on the second collar, be provided with the section of jurisdiction in the shield tail, be provided with sealed piece between steel plate brush and the section of jurisdiction, sealed piece with the steel plate brush is fixed.
By adopting the technical scheme, when the shield tunneling machine works, the sealing block is in contact with the pipe piece, the sealing performance is increased, and external underground water, external soil and the like are not easy to enter the shield tail.
Optionally, the inside cavity of sealed piece sets up, be provided with the filling tube on the inner wall of shield tail, inside the one end of filling tube stretched into the second collar, be provided with the connecting pipe on the second collar, the one end and the filling tube of connecting pipe are connected, the other end of connecting pipe inserts in the sealed piece.
By adopting the technical scheme, when the shield machine works, the injection pipe conveys grease into the sealing block, and the sealing performance of the sealing block is improved.
On the other hand, the tunneling method of the earth pressure balance shield machine provided by the application adopts the following technical scheme:
s1, the cutter head rotates to dig, the shield body moves forwards, and when the shield tail brush is damaged, the shield tail brush is replaced in time;
s2, when the shield tail brush is disassembled, the locking nut is unscrewed, then the inserting column is pushed, and the inserting column is pushed into the accommodating hole;
s3, the abutting plate pushes the mounting block to the outlet of the mounting groove under the action of the elastic force of the second spring, and the mounting block is taken out of the mounting groove;
s4, after a shield tail brush on the first mounting ring is taken down, a new shield tail brush is mounted on the first mounting ring, and during mounting, the plug-in column is compressed firstly, so that the plug-in column is contracted into the accommodating hole;
s5, inserting the mounting block into the mounting groove, inserting the positioning column into the positioning hole, and inserting the insertion column into the insertion hole under the action of the first spring after the insertion column is aligned with the insertion hole;
s6, finally, the locking nut is in threaded connection with the bottom end of the inserting column, the locking nut abuts against the first mounting ring, and therefore the shield tail brush is fixed.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the mounting block and the shield tail brush are fixed through the inserting assembly, so that the shield tail brush is convenient to mount and dismount;
2. locking nut and plug-in connection post threaded connection, after screwing up locking nut, locking nut supports tightly first collar to the stability of first installation piece and shield tail brush has been increased.
Drawings
Fig. 1 is a schematic view of the overall structure embodying the present application.
Fig. 2 is a schematic sectional view of a shield tail according to the present application.
Fig. 3 is a partially enlarged schematic view of a portion a in fig. 2.
Fig. 4 is a schematic view of a mounting groove structure embodying the present application.
Fig. 5 is an exploded view of a mounting block and a first mounting ring.
Fig. 6 is a schematic structural diagram of a shield tail brush and a mounting plate in the present application.
Description of reference numerals: 1. a shield body; 11. a cutter head; 2. a shield tail; 3. a shield tail brush; 31. mounting a plate; 311 accommodating grooves; 312. a magnet; 313. a positioning column; 32. mounting blocks; 321. an accommodation hole; 4. a first mounting ring; 41. mounting grooves; 411. a chute; 412. a jack; 42. positioning holes; 5. an abutment assembly; 51. a butt joint plate; 52. a second spring; 6. a plug-in assembly; 61. a first spring; 62. inserting the columns; 621. locking the nut; 622. a ball bearing; 7. an injection pipe; 71. injecting grease; 72. a connecting pipe; 8. a second mounting ring; 81. a steel scrubbing brush; 82. a sealing block; 9. a tube sheet.
Detailed Description
The present application is described in further detail below with reference to fig. 1-6.
The embodiment of the application discloses earth pressure balance shield constructs machine. Referring to fig. 1, the earth pressure balance shield machine comprises a shield body 1 and a cutter head 11, wherein the cutter head 11 is installed on one side of the shield body 1, the shield body 1 comprises a front shield, a middle shield and a shield tail 2, and the shield tail 2 is fixed on one side of the shield body 1 far away from the cutter head 11.
Referring to fig. 2 and 3, four shield tail brushes 3 are arranged in the shield tail 2, four first mounting rings 4 are fixed on the inner wall of the shield tail 2, the four first mounting rings 4 are uniformly arranged along the length direction of the shield tail 2, and each first mounting ring 4 corresponds to one shield tail brush 3.
Referring to fig. 4, eight mounting grooves 41 are formed in the side wall of the first mounting ring 4, the eight mounting grooves 41 are uniformly arranged along the circumferential direction of the first mounting ring 4, each mounting groove 41 corresponds to one tail brush 3, the eight tail brushes 3 form one tail brush 3, and the eight tail brushes 3 form one ring.
Referring to fig. 5 and 6, a mounting plate 31 is fixed on one side of the shield tail brush 3 close to the first mounting ring 4, a mounting block 32 is fixed on one side of the mounting plate 31 far away from the shield tail brush 3, and the mounting block 32 is inserted into the mounting groove 41. An abutment assembly 5 is provided within the mounting groove 41. The abutting assembly 5 comprises an abutting plate 51 and a second spring 52, one end of the second spring 52 is fixed on the hole wall of the mounting groove 41 far away from the mounting block 32, and the other end of the second spring 52 is fixed with the abutting plate 51.
Referring to fig. 3 and 4, the bottom wall of the mounting block 32 is provided with a receiving hole 321, and the plug assembly 6 is disposed in the receiving hole 321. The plug assembly 6 includes a first spring 61 and a plug column 62, one end of the plug column 62 is located in the receiving hole 321, and the other end of the plug column 62 is located outside the receiving hole 321. One end of the first spring 61 is fixed to the hole wall of the accommodating hole 321 away from the plug column 62, and the other end of the first spring 61 is fixed to the plug column 62.
The groove wall of the mounting groove 41 contacting with the bottom wall of the mounting block 32 is provided with a sliding groove 411, the groove wall of the sliding groove 411 is provided with an insertion hole 412, and the insertion hole 412 penetrates through the groove wall of the sliding groove 411. When the shield tail brush 3 is installed, the plug column 62 is pushed first to compress the first spring 61, then the installation block 32 is inserted into the installation groove 41, then the installation block 32 is pushed forcibly, the installation block 32 is in contact with the abutting plate 51, the abutting plate 51 compresses the second spring 52, and after the plug column 62 is aligned with the jack 412, the plug column 62 is inserted into the jack 412 under the action of the first spring 61.
The inserting column 62 penetrates through the inserting hole 412, a thread is arranged on the outer wall of the inserting column 62, one end, far away from the mounting block 32, of the inserting column 62 is connected with a locking nut 621 in a threaded mode, and the locking nut 621 tightly abuts against the side wall of the first mounting ring 4. The ball 622 is installed at one end of the insertion column 62 away from the installation block 32, and when the installation block 32 is inserted into the installation groove 41, the ball 622 contacts with the bottom wall of the sliding groove 411, so that the installation block 32 is conveniently inserted into the installation groove 41.
Referring to fig. 6, the side walls of two adjacent mounting plates 31 close to each other are provided with accommodating grooves 311, a magnet 312 is installed in the accommodating groove 311 of one mounting plate 31, a magnet 312 is also installed in the accommodating groove 311 of the other mounting plate 31, and the two magnets 312 are attracted and fixed to each other.
Referring to fig. 5 and 6, two positioning columns 313 are fixed on one side of the mounting plate 31 close to the first mounting ring 4, the two positioning columns 313 are respectively located on two sides of the mounting block 32, a positioning hole 42 is formed in the first mounting ring 4, and the positioning columns 313 are in insertion fit with the positioning hole 42.
Referring to fig. 2, a plurality of injection pipes 7 are provided in the shield tail 2, and a plurality of grease injection holes 71 are opened in the injection pipes 7. One end of the shield tail 2, which is far away from the first mounting ring 4, is provided with a second mounting ring 8, the second mounting ring 8 is fixed with the inner wall of the shield tail 2, a plurality of steel plate brushes 81 are mounted on the second mounting ring 8, the steel plate brushes 81 are fixed with the second mounting ring 8 through bolts, the plurality of steel plate brushes 81 are uniformly arranged along the second mounting ring 8, and the plurality of steel plate brushes 81 form an annular shape.
The inside section of jurisdiction 9 that is provided with of shield tail 2 is provided with sealed piece 82 between steel sheet brush 81 and the section of jurisdiction 9, and sealed piece 82 is fixed with steel sheet brush 81, and sealed piece 82 is made by rubber material, and sealed piece 82 cavity sets up. One end of the injection pipe 7, which is far away from the first mounting ring 4, is inserted into the second mounting ring 8, a connecting pipe 72 is arranged on the second mounting ring 8, the connecting pipe 72 is communicated with the injection pipe 7, and one end of the connecting pipe 72, which is far away from the injection pipe 7, is inserted into the sealing block 82. When the shield machine works, the injection pipe 7 injects sealing grease between the shield tail brush 3 and the duct piece 9, meanwhile, the connecting pipe 72 injects sealing grease into the sealing block 82, and the sealing block 82 is attached to the duct piece 9 after rising, so that a better sealing effect is achieved.
The application also discloses a tunneling method of the earth pressure balance shield machine, which comprises the following steps:
s1, the cutter head 11 rotates to dig, the shield body 1 moves forwards, and when the shield tail brush 3 is damaged, the shield tail brush 3 is replaced;
s2, when the shield tail brush 3 is disassembled, the locking nut 621 is unscrewed, then the inserting column 62 is pushed, and the inserting column 62 is pushed into the accommodating hole 321;
s3, the abutting plate 51 pushes the mounting block 32 to the outlet of the mounting groove 41 under the action of the elastic force of the second spring 52, and then the mounting block 32 is taken out of the mounting groove 41;
s4, removing the tail brush 3 from the first mounting ring 4, and then mounting the new tail brush 3 on the first mounting ring 4, wherein during mounting, the inserting column 62 is compressed first, so that the inserting column 62 is retracted into the receiving hole 321;
s5, inserting the mounting block 32 into the mounting groove 41, wherein the positioning post 313 is inserted into the positioning hole 42, and when the insertion post 62 is aligned with the insertion hole 412, the insertion post 62 is inserted into the insertion hole 412 under the action of the first spring 61;
and S6, finally, the locking nut 621 is in threaded connection with the bottom end of the inserting column 62, so that the locking nut 621 abuts against the first mounting ring 4, and the shield tail brush 3 is fixed.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (4)
1. The utility model provides a soil pressure balance shield constructs machine which characterized in that: the shield tail brush is characterized by comprising a shield body (1), a cutter head (11) is installed on one side of the shield body (1), a shield tail (2) is installed on one side, away from the cutter head (11), of the shield body (1), a plurality of first installation rings (4) are fixed on the inner wall of the shield tail (2), the first installation rings (4) are evenly arranged along the length direction of the shield tail (2), and a shield tail brush (3) is installed on each first installation ring (4);
the shield tail brush (3) consists of a plurality of shield tail brushes (3), a plurality of mounting grooves (41) are uniformly formed in each first mounting ring (4), each mounting groove (41) corresponds to one shield tail brush (3), a mounting plate (31) is fixed at one end, close to the mounting groove (41), of each shield tail brush (3), a mounting block (32) is fixed at one side, close to the mounting groove (41), of the mounting plate (31), and the mounting block (32) is spliced with the mounting groove (41);
a containing hole (321) is formed in the bottom wall of the mounting block (32), an inserting assembly (6) is arranged in the containing hole (321), the inserting assembly (6) comprises a first spring (61) and an inserting column (62), an inserting hole (412) is formed in the wall of the mounting groove (41), one end of the inserting column (62) extends out of the containing hole (321) to be inserted into the inserting hole (412), the first spring (61) is fixed between the inserting column (62) and the wall of the containing hole (321), the inserting hole (412) penetrates through the first mounting ring (4) downwards, and the inserting column (62) extends out of the first mounting ring (4);
a second spring (52) is arranged in the mounting groove (41), a butting plate (51) is fixed on one side, close to the mounting block (32), of the second spring (52), and the second spring (52) is fixed between the butting plate (51) and the groove wall, far away from the mounting block (32), of the mounting groove (41);
a thread is arranged on the plug-in column (62), a locking nut (621) is connected to one end of the plug-in column (62) far away from the mounting block (32) in a threaded manner, and the locking nut (621) abuts against the first mounting ring (4);
a sliding groove (411) is formed in the groove wall of the mounting groove (41) provided with the insertion hole (412), and the sliding groove (411) is in sliding connection with one end, far away from the mounting block (32), of the insertion column (62);
a ball (622) is arranged at one end of the insertion column (62) far away from the mounting block (32);
a second mounting ring (8) is fixed on the inner wall of one end, away from the cutter head (11), of the shield tail (2), a plurality of steel plate brushes (81) are fixed on the second mounting ring (8), a pipe piece (9) is arranged in the shield tail (2), a sealing block (82) is arranged between each steel plate brush (81) and the corresponding pipe piece (9), and each sealing block (82) is fixed with each steel plate brush (81);
the inside cavity of sealed piece (82) sets up, be provided with injection pipe (7) on the inner wall of shield tail (2), inside the one end of injection pipe (7) stretched into second collar (8), be provided with connecting pipe (72) on second collar (8), the one end and the injection pipe (7) of connecting pipe (72) are connected, the other end of connecting pipe (72) inserts in sealed piece (82).
2. The earth pressure balance shield machine of claim 1, characterized in that: the mounting plate (31) is close to one side of the first mounting ring (4) is fixed with two positioning columns (313), the two positioning columns (313) are respectively located on two sides of the mounting block (32), and positioning holes (42) for the positioning columns (313) to be inserted are formed in the first mounting ring (4).
3. The earth pressure balance shield machine of claim 2, characterized in that: two adjacent all seted up holding tank (311) on the lateral wall that mounting panel (31) are close to each other, be fixed with magnet (312) in holding tank (311) of one of them mounting panel (31), be fixed with another magnet (312) with mutual actuation of magnet (312) in holding tank (311) of another mounting panel (31).
4. A tunneling method of the earth pressure balance shield machine according to claim 3, characterized in that: the method comprises the following steps:
s1, the cutter head (11) rotates to dig, the shield body (1) moves forwards, and when the shield tail brush (3) is damaged, the shield tail brush (3) is replaced in time;
s2, when the shield tail brush (3) is disassembled, the locking nut (621) is unscrewed, then the inserting column (62) is pushed, and the inserting column (62) is pushed into the accommodating hole (321);
s3, the abutting plate (51) pushes the mounting block (32) to the outlet of the mounting groove (41) under the action of the elastic force of the second spring (52), and the mounting block (32) is taken out of the mounting groove (41);
s4, after the shield tail brush (3) on one first mounting ring (4) is taken down, a new shield tail brush (3) is mounted on the first mounting ring (4), and during mounting, the plug-in post (62) is compressed to enable the plug-in post (62) to shrink into the accommodating hole (321);
s5, inserting the mounting block (32) into the mounting groove (41), inserting the positioning column (313) into the positioning hole (42), and inserting the insertion column (62) into the insertion hole (412) under the action of the first spring (61) after the insertion column (62) is aligned with the insertion hole (412);
s6, finally, the locking nut (621) is in threaded connection with the bottom end of the inserting column (62), so that the locking nut (621) abuts against the first mounting ring (4), and the shield tail brush (3) is fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210149405.6A CN114198109B (en) | 2022-02-17 | 2022-02-17 | Earth pressure balance shield machine and tunneling method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210149405.6A CN114198109B (en) | 2022-02-17 | 2022-02-17 | Earth pressure balance shield machine and tunneling method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114198109A CN114198109A (en) | 2022-03-18 |
| CN114198109B true CN114198109B (en) | 2022-05-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210149405.6A Active CN114198109B (en) | 2022-02-17 | 2022-02-17 | Earth pressure balance shield machine and tunneling method thereof |
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| Country | Link |
|---|---|
| CN (1) | CN114198109B (en) |
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| CN101251015A (en) * | 2008-04-02 | 2008-08-27 | 上海隧道工程股份有限公司 | Construction method for exchanging shield ventral brush |
| CN102155237A (en) * | 2011-03-22 | 2011-08-17 | 中建市政建设有限公司 | Device for exchanging tail brush during shield tunneling, and construction method of device |
| CN102562081A (en) * | 2012-03-15 | 2012-07-11 | 中交天和机械设备制造有限公司 | Shield tail sealing device for shield machine |
| CN104863600A (en) * | 2014-02-26 | 2015-08-26 | 中盾控股集团有限公司 | Shield tail brush replacement tool for shield tunneling machine |
| CN107401405A (en) * | 2017-06-15 | 2017-11-28 | 中交第二航务工程局有限公司 | Fixed assembling machine changes the device and its construction method of shield tail brush |
| CN208749355U (en) * | 2018-08-02 | 2019-04-16 | 中交第二航务工程局有限公司 | It is conveniently replaceable the sliding section of jurisdiction of shield tail brush |
| CN111706340A (en) * | 2020-06-15 | 2020-09-25 | 中铁十一局集团城市轨道工程有限公司 | Shield tail brush convenient to replace and method for replacing shield tail brush under long-distance non-reinforced working condition |
| CN212376657U (en) * | 2020-03-27 | 2021-01-19 | 标郓自动化科技(上海)有限公司 | Quick detach formula shield tail sealing device of shield tail brush |
| CN112922613A (en) * | 2021-04-02 | 2021-06-08 | 中电建铁路建设投资集团有限公司 | Composite shield tail sealing brush capable of synchronously filling sealing grease for shield and shield tail sealing method |
| CN114033400A (en) * | 2021-11-25 | 2022-02-11 | 中铁隧道局集团有限公司 | Shield tail mechanism capable of replacing all shield tail brushes in hole and method for replacing shield tail brushes |
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2022
- 2022-02-17 CN CN202210149405.6A patent/CN114198109B/en active Active
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| CN104863600A (en) * | 2014-02-26 | 2015-08-26 | 中盾控股集团有限公司 | Shield tail brush replacement tool for shield tunneling machine |
| CN107401405A (en) * | 2017-06-15 | 2017-11-28 | 中交第二航务工程局有限公司 | Fixed assembling machine changes the device and its construction method of shield tail brush |
| CN208749355U (en) * | 2018-08-02 | 2019-04-16 | 中交第二航务工程局有限公司 | It is conveniently replaceable the sliding section of jurisdiction of shield tail brush |
| CN212376657U (en) * | 2020-03-27 | 2021-01-19 | 标郓自动化科技(上海)有限公司 | Quick detach formula shield tail sealing device of shield tail brush |
| CN111706340A (en) * | 2020-06-15 | 2020-09-25 | 中铁十一局集团城市轨道工程有限公司 | Shield tail brush convenient to replace and method for replacing shield tail brush under long-distance non-reinforced working condition |
| CN112922613A (en) * | 2021-04-02 | 2021-06-08 | 中电建铁路建设投资集团有限公司 | Composite shield tail sealing brush capable of synchronously filling sealing grease for shield and shield tail sealing method |
| CN114033400A (en) * | 2021-11-25 | 2022-02-11 | 中铁隧道局集团有限公司 | Shield tail mechanism capable of replacing all shield tail brushes in hole and method for replacing shield tail brushes |
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| CN114198109A (en) | 2022-03-18 |
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