CN109184710B - Anti-rolling device for shield tunneling machine and installation method of anti-rolling device - Google Patents
Anti-rolling device for shield tunneling machine and installation method of anti-rolling device Download PDFInfo
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- CN109184710B CN109184710B CN201811416134.6A CN201811416134A CN109184710B CN 109184710 B CN109184710 B CN 109184710B CN 201811416134 A CN201811416134 A CN 201811416134A CN 109184710 B CN109184710 B CN 109184710B
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- shield
- wing plate
- side wing
- plate
- fixed sleeve
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- 230000005641 tunneling Effects 0.000 title claims abstract description 55
- 238000005096 rolling process Methods 0.000 title claims abstract description 49
- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000009434 installation Methods 0.000 title abstract description 7
- 230000002265 prevention Effects 0.000 claims abstract description 18
- 239000002689 soil Substances 0.000 claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 18
- 238000003466 welding Methods 0.000 claims description 17
- 229910000831 Steel Inorganic materials 0.000 claims description 12
- 239000010959 steel Substances 0.000 claims description 12
- 230000003014 reinforcing effect Effects 0.000 claims description 6
- 238000004140 cleaning Methods 0.000 claims description 2
- 238000007789 sealing Methods 0.000 claims description 2
- 238000004078 waterproofing Methods 0.000 claims description 2
- NMFHJNAPXOMSRX-PUPDPRJKSA-N [(1r)-3-(3,4-dimethoxyphenyl)-1-[3-(2-morpholin-4-ylethoxy)phenyl]propyl] (2s)-1-[(2s)-2-(3,4,5-trimethoxyphenyl)butanoyl]piperidine-2-carboxylate Chemical compound C([C@@H](OC(=O)[C@@H]1CCCCN1C(=O)[C@@H](CC)C=1C=C(OC)C(OC)=C(OC)C=1)C=1C=C(OCCN2CCOCC2)C=CC=1)CC1=CC=C(OC)C(OC)=C1 NMFHJNAPXOMSRX-PUPDPRJKSA-N 0.000 claims 1
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000010276 construction Methods 0.000 description 8
- 239000000463 material Substances 0.000 description 2
- 239000004927 clay Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
Classifications
-
- 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
Abstract
The invention discloses an anti-rolling device for a shield machine, which comprises a fixed sleeve, a side wing plate and an adjusting mechanism, wherein the fixed sleeve is arranged on the side wing plate; the fixed sleeve is fixed on the side wall of the front shield of the shield tunneling machine main body; the side wing plate is arranged in the fixed sleeve, the front end of the side wing plate is a working end and can be inserted into soil bodies at two sides of the shield tunneling machine main body; the rear end of the side wing plate is connected with the driving end of the adjusting mechanism, and the operating end of the adjusting mechanism penetrates through the fixing sleeve and stretches into the shield tunneling machine main body. The invention also discloses a method for installing the side rolling prevention device for the shield tunneling machine. The beneficial effects of the invention are as follows: the anti-rolling device can freely adjust the length of the wear-resistant side wing plate extending out of the shield shell in a certain range, and the adjustment of the depth of the wear-resistant side wing plate perpendicular to the tunneling direction of the shield is equivalent to the installation of two fulcrums for the shield machine, so that the friction force between the shield machine and soil is increased, and the stability of the shield machine in the tunneling process is enhanced.
Description
Technical Field
The invention relates to the technical field of shield tunneling machine side rolling prevention, in particular to a side rolling prevention device for a shield tunneling machine and an installation method of the side rolling prevention device.
Background
Because the cutter head of the shield machine rotates continuously, the situation that the shield rolls sideways is unavoidable due to the influence of the rotation of the cutter head of the shield machine. Normally, the normal construction is not affected by the tiny side rolling, but if the side rolling is not corrected in time, the side rolling angle is accumulated to an alarm value, so that the construction is greatly affected, for example: 1) Damage to the equipment: under the condition of large side rolling, the equipment bridge and the double beams of the shield machine are in a torsion state, and brittle failure happens suddenly when the limit is reached; 2) If the side rolling is large, the safety of operators is endangered after equipment is damaged, and great potential safety hazards exist; 3) The measurement error is larger, and the shield can not normally go out of the tunnel when serious, especially when the shield machine passes through a karst area and enters a turning section with a small curvature radius, the thrust of two subareas is difficult to control, and the autorotation of the shield machine is easier to cause.
Disclosure of Invention
The invention aims to provide a lateral rolling prevention device for a shield machine and an installation method thereof, aiming at the defects of the prior art.
The invention adopts the technical scheme that: a rolling prevention device for a shield machine comprises a fixed sleeve, a side wing plate and an adjusting mechanism; the fixed sleeve is fixed on the side wall of the front shield of the shield tunneling machine main body; the side wing plate is arranged in the fixed sleeve, the front end of the side wing plate is a working end and can be inserted into soil bodies at two sides of the shield tunneling machine main body; the rear end of the side wing plate is connected with the driving end of the adjusting mechanism, and the operating end of the adjusting mechanism penetrates through the fixing sleeve and stretches into the shield tunneling machine main body.
According to the scheme, the front end face of the side wing plate is an arc face with the diameter of 400-600 mm; the middle part of the side wing plate is provided with a reinforcing rib.
According to the scheme, the fixing sleeve is U-shaped and comprises an end plate and two side plates; the front end of the side wing plate is positioned at the opening end of the fixed sleeve; the adjusting mechanism penetrates through the end plate of the fixed sleeve, the end plate of the fixed sleeve is attached to the rear cover plate on the shield tunneling machine body and welded, and a water stop strip is arranged on the connecting surface of the end plate of the fixed sleeve and the rear cover plate.
According to the scheme, two triangular steel plates are respectively arranged at two ends of the end plate, and the triangular steel plates, the end plate and the rear cover plate of the shield tunneling machine main body are fixedly connected.
According to the scheme, the adjusting mechanism comprises an adjusting top screw rod, one end of the adjusting top screw rod is connected with the rear end of the side wing plate, and the other end of the adjusting top screw rod sequentially penetrates through the end plate and the rear cover plate and stretches into the shield tunneling machine body.
According to the scheme, the side wing plate is arranged at the position of about 1/4-1/3 of the front shield of the shield tunneling machine main body.
The invention also provides a side-rolling prevention shield machine, which comprises a shield machine main body and two groups of side-rolling prevention devices symmetrically arranged at two sides of the shield machine main body along the axis of the shield machine main body, wherein each side-rolling prevention device comprises a fixed sleeve, a side wing plate and an adjusting mechanism; the fixed sleeve is fixed on the outer side wall of the shield tunneling machine main body; the side wing plate is arranged in the fixed sleeve, and the front end of the side wing plate is a working end and is inserted into the soil body; the rear end of the side wing plate is connected with the driving end of the adjusting mechanism, and the operating end of the adjusting mechanism penetrates through the fixing sleeve and stretches into the shield tunneling machine main body.
The invention also provides an installation method of the side rolling prevention device for the shield tunneling machine, which comprises the following steps:
Step one, providing the components of the anti-roll device;
Step two, reducing the underground water level: lowering the underground water level below the lowest point of the tunnel by adopting pipe well dewatering;
symmetrically breaking holes on two sides of the main body of the shield tunneling machine to install the side rolling prevention device:
Step four, after the hole is broken, checking the breaking size of the positioning sleeve, and checking whether the gaps among the positioning sleeve, the shield body main body and the positioning sleeve meet the requirements before welding;
step five, cleaning a welding surface, and welding and reinforcing the shield machine shell and the positioning sleeve;
step six, arranging a water stop strip between the rear cover plate and the fixed sleeve for sealing and waterproofing;
step seven, manually controlling and adjusting a top screw rod, and adjusting the length of the front end of the side wing plate embedded into the soil body; and the side rolling angle of the shield tunneling machine main body is controlled according to different layers.
The invention has the beneficial effects that:
1) The anti-rolling device can freely adjust the length of the wear-resistant side wing plate extending out of the shield shell in a certain range, and the adjustment of the depth of the wear-resistant side wing plate perpendicular to the tunneling direction of the shield is equivalent to the installation of two fulcra for the shield machine, so that the friction force between the shield machine and soil is increased, the stability of the shield machine in the tunneling process is enhanced, and the rolling angle of the shield machine can be controlled within +/-5 degrees in a targeted manner;
2) According to the invention, the anti-side rolling devices are additionally arranged on the two sides of the main body of the shield machine, so that compared with the method for adjusting the rotation angle of the shield machine through forward and reverse rotation in the tunneling process, the tunneling speed of the shield machine is improved, and the construction and operation costs of the anti-side rolling device are reduced;
3) The front end surface of the side wing plate is designed into the cambered surface with the diameter of 400-600mm, so that the rolling angle of the shield machine is effectively controlled, and simultaneously, the friction resistance caused by the rolling prevention device to the tunneling of the shield machine can be greatly reduced;
4) The fixed sleeve of the side rolling prevention device and the shield machine main body are welded by adopting welding rods, so that an integral structure is formed, and the fixed sleeve and the shield machine main body are firmly welded by utilizing the triangular plate at the contact position of the fixed sleeve and the shield machine main body, so that the side movement resistance rigidity is increased;
5) The invention has reasonable design, high structural stability and strong reliability.
Drawings
Fig. 1 is a front view of an embodiment of the present invention.
Fig. 2 is a schematic structural view of the back cover plate in the present embodiment.
Fig. 3 is a front view of the side panel in this embodiment.
Fig. 4 is a top view of the side panel of this embodiment.
Fig. 5 is a left side view of the side panel of this embodiment.
Fig. 6 is a front view of the connection of the present embodiment with the shield tunneling machine body.
Fig. 7 is a plan view showing the connection of the shield machine body according to the present embodiment.
Wherein: 1. a back cover plate; 2. a water stop strip; 3. a bolt; 4. adjusting a top screw rod; 5. a fixed sleeve; 6. a fixed sleeve side plate; 7. an end plate; 8. triangular steel plates; 9. reinforcing ribs; 10. a side wing plate; 11. a shield machine main body; 12. adjusting a screw rod hole; 13. bolt holes; 14. cutter head of shield machine; 15. a soil cabin; 16. front shield; 17. and a shield machine shell.
Detailed Description
For a better understanding of the present invention, the present invention is further described below with reference to the drawings and the detailed description of the embodiments.
The side rolling prevention device for the shield machine shown in fig. 1 mainly comprises a fixed sleeve 5, a side wing plate 10 and an adjusting mechanism; the fixed sleeve 5 is fixed on the outer side wall of the shield machine main body 11, and is specifically fixed on the side wall of the front shield 16 shell of the shield machine main body 11; the side wing plate 10 is installed in the fixed sleeve 5, the front end of the side wing plate 10 is a working end (the front end of the side wing plate 10 is one end embedded into soil body, and the rear end of the side wing plate 10 is one end connected with the adjusting mechanism), and the side wing plate 10 can be inserted into the soil body at two sides of the shield tunneling machine main body 16 (the soil body is embedded in the direction perpendicular to the shield tunneling direction); the rear end of the side wing plate 10 is connected with the driving end of the adjusting mechanism, and the operating end of the adjusting mechanism penetrates through the fixing sleeve 5 and stretches into the shield tunneling machine main body 11. Preferably, as shown in fig. 3 to 5, the front end surface of the side wing plate 10 is a cambered surface with the diameter of 400-600 mm; the middle part of the side wing plate 10 is provided with a reinforcing rib 9 to improve the strength of the side wing plate 10. The side wing plate 10 is made of wear-resistant materials. Preferably, the fixing sleeve 5 is U-shaped and comprises an end plate 7 and two side plates 6; the front end of the side wing plate 10 is positioned at the opening end of the fixed sleeve 5; the adjusting mechanism passes through the end plate 7 of the fixed sleeve 5, the end plate 7 of the fixed sleeve 5 is attached to the rear cover plate 1 on the shield machine main body 11 and welded, and a water stop bar 2 (which can be a rubber water stop bar) is arranged on the connecting surface of the two; the rear cover plate 1 is made of steel plates. Preferably, a triangular steel plate 8 is arranged at each end of the end plate 7, and the triangular steel plate 8, the end plate 7 and the rear cover plate 1 of the shield machine body 11 are fixedly connected by bolts 3 (as shown in fig. 2). Preferably, the adjusting mechanism comprises an adjusting top screw rod 4, one end of the adjusting top screw rod 4 is connected with the rear end of the side wing plate 10, and the other end of the adjusting top screw rod 4 sequentially penetrates through the end plate 7 and the rear cover plate 1 and stretches into the shield tunneling machine main body 11. In this embodiment, the side wing plate 10 is installed at about 1/4 to 1/3 of the front shield 16 of the shield tunneling machine main body 11, wherein the right side wing plate 10 is located at the 3 o 'clock direction of the front shield 16, and the left side wing plate 10 is located at the 9 o' clock direction of the front shield 16.
The shield machine for preventing side rolling as shown in fig. 6 and 7 comprises a shield machine main body 11 and two groups of side rolling preventing devices symmetrically arranged at two sides of the shield machine main body 11 along the axis of the shield machine main body 11, wherein each side rolling preventing device comprises a fixed sleeve 5, a side wing plate 10 and an adjusting mechanism; the fixed sleeve 5 is fixed on the outer side wall of the shield machine main body 11, and is specifically fixed on the side wall of the front shield 16 shell of the shield machine main body 11; the side wing plate 10 is arranged in the fixed sleeve 5, and the front end of the side wing plate 10 is a working end and is inserted into the soil body; the rear end of the side wing plate 10 is connected with the driving end of the adjusting mechanism, and the operating end of the adjusting mechanism penetrates through the fixed sleeve 5 and stretches into the shield tunneling machine main body 11, and particularly stretches into the front shield 16 of the shield tunneling machine main body 11.
In the embodiment, the specific hole size of the shield tunneling machine main body 11 is 300mm×500mm; the rear cover plate 1 is made of Q235 steel plates, the size of the rear cover plate is 600 multiplied by 400 multiplied by 15mm, 12 holes are drilled on the rear cover plate, 9 holes are bolt holes, the specification is M20 multiplied by 70mm, the model is 8.8 grade, and the rear cover plate is used for connecting the triangular steel plates 8 and the end plates 7;12 adjusting screw holes are formed, the specification is M30×300mm, the model is 8.8 grade, and the adjusting jackscrews penetrate through the adjusting screw holes 9; the water stop strip 2 adopts a water-swelling water stop strip (which can be a rubber water stop strip) with the size of 600 multiplied by 400 multiplied by 15m; the size of the fixed sleeve 5 is 500 multiplied by 396 multiplied by 196mm, and the fixed sleeve is made of steel plate with Q235 thickness of 20 mm; the welding wire is phi 1.2mm, E50 type, the electric arc welder adopts 380V, the model is ZXE12, and one welding wire with the same model is used for standby. Before construction, the equipment such as construction electricity, water, channels, drainage, illumination and the like is installed according to the conventional shield, and emergency materials such as: 3 emergency lighting lamps, 3 fire extinguishers, 200 gunny bags and the like to meet specific construction requirements.
Taking the above embodiment as an example, the method for installing the anti-rolling device of the shield tunneling machine specifically includes the following steps:
Step one, providing components of the anti-rolling device, such as a fixed sleeve 5, a side wing plate 10 and the like;
Step two, reducing the underground water level: in order to prevent safety accidents caused by the occurrence of mud and sand burst phenomena in a tunnel when the shield tunneling machine main body 11 breaks a hole, pipe well dewatering is adopted, and the groundwater level is reduced to be below 0.5m of the lowest point of the tunnel;
Step three, a hole is formed in the shield tunneling machine main body 11: a hole is formed in the position 1/4-1/3 of the front shield 16 of the shield tunneling machine main body 11 away from the shield tunneling machine cutterhead 14 (the specific position can be determined according to the position of the centroid of the shield tunneling machine); specifically, aiming at the red clay layer, in order to effectively control the side rolling angle of the shield machine, the shield machine breaks holes at 1/3 of the front shield 16 from the direction of the cutter head 14 of the shield machine, wherein the size of the holes is 300mm multiplied by 500mm; the two sides of the shield tunneling machine main body 11 are symmetrically provided with holes;
Checking the breaking size of the positioning sleeve 5 after the hole breaking is completed, checking whether the gaps among the positioning sleeve 5, the shield body main body 11 and the positioning sleeve 5 meet the requirement before welding, and carrying out local polishing on the part causing the gap to be larger than 3mm by adopting a grinding wheel, thereby carrying out construction strictly according to shield machine operation rules and maintenance standards;
Step five, welding and fixing the positioning sleeve 5: the contact surface before welding should be cleaned, especially grease and embroidery are cleaned in time around the welding seam, the thickness and width of the welding seam are ensured to be uniform and consistent in the welding process, and a triangular steel plate with the thickness of 2mm is adopted to weld and strengthen the shield machine shell 17 and the positioning sleeve 5; welding construction is strictly carried out according to a manual of welding engineers;
Step six, installing a rear cover plate 1 and a water stop bar 2: a water stop bar 2 is arranged between the rear cover plate 1 and the fixed sleeve 5 to seal and prevent water, so that rock and soil in a tunnel is prevented from invading the shield tunneling machine main body 11 from the anti-rolling device to damage the shield tunneling machine main body 11;
step seven, manually controlling and adjusting the top screw rod 4, adjusting the length of the front end of the side wing plate 10 embedded into the soil body, and; the extending length of the adjusting top screw rod 4 is changed, the depth of the side wing plate 10 penetrating into soil is controlled, and the side rolling angle of the shield tunneling machine main body 11 is effectively controlled according to different layers; in this embodiment, the length of the top screw 4 can be adjusted by at most 25 cm.
The working principle of the invention is as follows: the two sets of side rolling prevention devices are arranged at 1/3 of the shield machine front shield 16 from the direction of the shield machine cutterhead 14 and are respectively positioned at the left side and the right side, wherein the right side rolling prevention devices are positioned at the 3 o 'clock direction of the front shield 16 and the left side is positioned at the 9 o' clock direction of the front shield 16. In the process of shield tunneling, the depth of the side wing plate 10 embedded into the soil body is adjusted by combining the side rolling value and the geological condition in the shield tunneling through an adjusting mechanism additionally arranged on the shield, and the process is equivalent to installing two fulcrums for the shield machine, so that the friction force between the microminiature shield machine and the soil body is increased, and the effect of enhancing the stability of the shield machine in the tunneling process is achieved.
Although the present invention has been described in detail with reference to the embodiments, it will be apparent to those skilled in the art that the technical scheme and parameters described in the embodiments can be modified or some of the technical features can be replaced equally, but any modification, equivalent replacement, improvement, etc. within the spirit and principle of the present invention should be included in the scope of protection of the present invention.
Claims (5)
1. The method for installing the anti-rolling device for the shield tunneling machine is characterized by comprising the following steps of:
step one, providing each component of the anti-rolling device;
Step two, reducing the underground water level: lowering the underground water level below the lowest point of the tunnel by adopting pipe well dewatering;
symmetrically breaking holes on two sides of the main body of the shield tunneling machine to install the side rolling prevention device:
Step four, after the hole is broken, checking the breaking size of the positioning sleeve, and checking the positioning sleeve, the shield body main body and the positioning before welding
Whether the gap of the bit sleeve meets the requirement or not;
step five, cleaning a welding surface, and welding and reinforcing the shield machine shell and the positioning sleeve;
step six, arranging a water stop strip between the rear cover plate and the fixed sleeve for sealing and waterproofing;
step seven, manually controlling and adjusting a top screw rod, and adjusting the length of the front end of the side wing plate embedded into the soil body; the side rolling angle of the shield tunneling machine main body is controlled according to different layers;
The side rolling prevention device comprises a fixed sleeve, a side wing plate and an adjusting mechanism; the fixed sleeve is fixed on the outer side wall of the shield tunneling machine main body; the side wing plate is arranged in the fixed sleeve, and the front end of the side wing plate is a working end and is inserted into the soil body; the rear end of the side wing plate is connected with the driving end of the adjusting mechanism, and the operating end of the adjusting mechanism penetrates through the fixed sleeve and stretches into the shield tunneling machine main body; the fixing sleeve is U-shaped and comprises an end plate and two side plates; the front end of the side wing plate is positioned at the opening end of the fixed sleeve; the adjusting mechanism penetrates through the end plate of the fixed sleeve, and the end plate of the fixed sleeve is attached to and welded with the rear cover plate on the shield tunneling machine body.
2. The method for installing an anti-rolling device for a shield machine according to claim 1, wherein the front end face of the side wing plate is a cambered surface with the diameter of 400-600 mm; the middle part of the side wing plate is provided with a reinforcing rib.
3. The method for installing an anti-rolling device for a shield machine according to claim 1, wherein a triangular steel plate is arranged at each of two ends of the end plate, and the triangular steel plate, the end plate and a rear cover plate of a shield machine body are fixedly connected.
4. The method for installing an anti-roll device for a shield machine according to claim 1, wherein the adjusting mechanism comprises an adjusting top screw rod, one end of the adjusting top screw rod is connected with the rear end of the side wing plate, and the other end of the adjusting top screw rod sequentially penetrates through the end plate and the rear cover plate and stretches into the shield machine body.
5. The method for installing an anti-roll device for a shield machine according to claim 1, wherein the side wing plate is installed at a front shield 1/4 to 1/3 of a shield machine body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811416134.6A CN109184710B (en) | 2018-11-26 | 2018-11-26 | Anti-rolling device for shield tunneling machine and installation method of anti-rolling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811416134.6A CN109184710B (en) | 2018-11-26 | 2018-11-26 | Anti-rolling device for shield tunneling machine and installation method of anti-rolling device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109184710A CN109184710A (en) | 2019-01-11 |
| CN109184710B true CN109184710B (en) | 2024-04-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811416134.6A Active CN109184710B (en) | 2018-11-26 | 2018-11-26 | Anti-rolling device for shield tunneling machine and installation method of anti-rolling device |
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| CN (1) | CN109184710B (en) |
Families Citing this family (1)
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| CN110671116B (en) * | 2019-09-20 | 2022-02-15 | 中交第二航务工程局有限公司 | Construction method for preventing initial torsion of shield tunneling machine |
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| CN109184710A (en) | 2019-01-11 |
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