CN112228086A - Shield tail outer side grout stopping device and construction method thereof - Google Patents
Shield tail outer side grout stopping device and construction method thereof Download PDFInfo
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- CN112228086A CN112228086A CN202011052198.XA CN202011052198A CN112228086A CN 112228086 A CN112228086 A CN 112228086A CN 202011052198 A CN202011052198 A CN 202011052198A CN 112228086 A CN112228086 A CN 112228086A
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- shield tail
- grout stopping
- grout
- alloy plate
- outer side
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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
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
- E21D11/105—Transport or application of concrete specially adapted for the lining of tunnels or galleries ; Backfilling the space between main building element and the surrounding rock, e.g. with concrete
Abstract
The invention discloses a shield tail outer side grout stopping device and a construction method thereof, wherein the grout stopping device comprises at least two groups of grout stopping assemblies, each group of grout stopping assemblies are distributed along the length direction of a shield tail and are connected to the outer side of the shield tail, each grout stopping assembly comprises a plurality of grout stopping plates, each grout stopping plate is arranged along the circumferential direction of the outer side of the shield tail in a staggered and overlapped mode, each grout stopping plate comprises a plurality of overlapped alloy plates, each alloy plate comprises a first bending part and a second bending part, the first bending part is parallel to the length direction of the shield tail, and the included angle between the second bending part and the length direction of the shield tail is 20-80 degrees. According to the grout stopping device, the plurality of grout stopping assemblies are arranged on the outer side of the shield tail, the grout stopping effect can be effectively achieved by adopting a layered separation mode, the problems of grout leakage and grout returning and shield blocking of the shield tail are avoided, the grouting quality is improved, and the construction efficiency is improved.
Description
Technical Field
The invention relates to the field of municipal and mountain tunnel engineering, in particular to a shield tail outer side grout stopping device and a construction method thereof.
Background
The single shield TBM has the advantages of high tunneling speed, small surrounding rock disturbance, one-step structure forming, safe, environment-friendly and reliable construction, and is widely applied to tunnel engineering of railways, water conservancy, traffic, mines, municipal works and the like. During construction of the single shield TBM, a pea gravel hydraulic filling grouting technology is usually adopted as an important process of construction of the single shield TBM at the rock bottom layer in the tunneling process, but the single shield TBM does not maintain pressure in the tunneling process, synchronous grouting is required to be carried out in time after the conventional hydraulic filling of pea gravel, namely, the slurry is injected into a shield tail gap through a grouting system while the shield is pushed forwards to form the shield tail gap, the filling of the pea gravel gap is instantly ensured in time, surrounding rocks around are supported in time, the collapse of the surrounding rocks can be effectively prevented, and the ground surface settlement is controlled. However, many problems exist in synchronous grouting, and as the synchronous grouting position is positioned outside the shield tail, slurry leakage from the shield tail and slurry flowing into the cutter head often occur, the cutter head is sealed, equipment is polluted, the cleaning is difficult, the slurry is wasted, the wall back grouting is not uniform, and tunnel water leakage is caused by the formation of a wall back cavity; in addition, slurry flows into the cutter head, so that the slurry is blocked, the operation of equipment is seriously influenced, and the continuous construction cannot be carried out.
In order to prevent the slurry leakage phenomenon in the synchronous grouting process, the prior art is to install a slurry stopping plate at the tail of the shield. Patent document CN105863680A provides a composite type grout stopping mechanism and a shield tunnel boring machine, which comprises a composite type grout stopping plate, wherein the composite type grout stopping plate comprises an upper grout stopping plate and a lower grout stopping plate which are arranged in parallel, and a wear-resistant rubber layer is arranged between the upper grout stopping plate and the lower grout stopping plate. The shield tunneling machine comprises the composite grout stopping mechanism, when the shield tunneling machine is pushed forwards, a gap between a rock wall and a shield tail is synchronously grouted, and the composite grout stopping plate extends backwards due to stress to form a closed space so as to enhance the tightness of a grouting environment; prevent the grout from flowing backward to the front section of the shield body to influence the construction. Patent document CN203271747U provides a shield tail sealing and slurry stopping device, which comprises a support frame, a slurry stopping plate and a steel wire brush; the longitudinal section of the support frame is a rounded rectangle with an opening at one end; the front end of the pulp stopping plate is arranged on the outer side of the support frame, the tail end of the pulp stopping plate is positioned above the horizontal plane, and the included angle between the pulp stopping plate and the horizontal plane is 10-90 degrees; the front end of the steel wire brush is arranged in the support frame, the tail end of the steel wire brush is positioned below the horizontal plane, and the included angle between the steel wire brush and the horizontal direction is 10-90 degrees; the front end of the wire brush is arranged in the support frame, and the rear end of the wire brush is retracted and suspended; the front end of the grout stopping plate is connected with the front end of the steel wire brush and the support frame through a connecting device, and the device can be welded and assembled on the circumference of the shield tail shell. Although the slurry stopping plate in the prior art can play a role in stopping slurry, the slurry stopping plate and the shield tail form a poor space in the actual use process, the slurry leakage phenomenon still occurs, and the slurry stopping effect is not ideal.
Disclosure of Invention
The invention aims to solve the problems that the sealing performance of a forming space of a grout stopping plate is poor, the grout leakage phenomenon occurs and the grout stopping effect is not ideal in the prior art, and provides a grout stopping device at the outer side of a shield tail and a construction method thereof.
In order to achieve the above purpose, the invention provides the following technical scheme:
the utility model provides a shield tail outside ends thick liquid device, it includes at least two sets of thick liquid subassemblies that end to end the thick liquid subassembly, every group end thick liquid subassembly and distribute and fixed connection in the shield tail outside along shield tail length direction, it includes a plurality of thick liquid boards that end to starch the subassembly, every end the thick liquid board along shield tail outside circumference adopts the overlap joint mode of staggering to arrange, every end the thick liquid board and include the alloy plate that the polylith overlapped and set up, the alloy plate includes first kink and second kink, first kink is parallel with shield tail length direction, the second kink is 20-80 with shield tail length direction's contained angle.
The slurry stopping device on the outer side of the shield tail is provided with a plurality of sets of slurry stopping assemblies on the outer side of the shield tail, each slurry stopping assembly is formed by a plurality of slurry stopping plates along the circumferential direction of the outer side of the shield tail in a staggered and overlapped arrangement mode, each slurry stopping plate comprises a plurality of layers of alloy plates, and the slurry stopping plates and the shield tail form an angle of 20-80 degrees in the length direction.
Furthermore, only starch subassembly still includes fixed baseplate, fixed baseplate is used for the installation only starch board first kink, fixed baseplate can be right only starch board plays the supporting role, better with the shield tail outside is fixed.
Furthermore, each group of grout stopping assemblies is fixedly connected to a step recessed on the outer side of the shield tail, and if the grout stopping assemblies are provided with fixed bases, the top surfaces of the fixed bases of the grout stopping assemblies are lower than or flush with the outer side of the shield tail, so that the abrasion of the fixed bases in the construction process can be reduced; if the slurry stopping assembly is not provided with a fixed base, the top surface of the first bending part of the alloy plate is lower than or flush with the outer side of the shield tail.
Further, the fixed base is fixed on the outer side of the shield tail through screws.
Further, the fixed baseplate comprises a first fixed baseplate and a second fixed baseplate, the first fixed baseplate is arranged between the slurry stopping plate and the outer side of the shield tail, and the second fixed baseplate is arranged on the outer side of the slurry stopping plate.
Further, the first fixing base and the second fixing base are made of wear-resistant alloy plates, the thickness of the first fixing base is 5-25mm, and the thickness of the second fixing base is 5-25 mm.
Further, the slurry stopping plate comprises at least three overlapped alloy plates, the alloy plates comprise a first alloy plate and a second alloy plate, the first alloy plate and the last alloy plate are the first alloy plate, and the alloy plate in the middle layer is the second alloy plate. Furthermore, the thickness of the first alloy plate is 0.8-1.5mm, and the thickness of the second alloy plate is 0.2-1 mm.
Furthermore, every it is in to end the thick liquid board adopt the overlap joint mode of staggering arrange in the shield tail outside and form a set of end the thick liquid subassembly, adopt the overlap joint mode of staggering can prevent end and appear the space between the thick liquid board, ensure to play effectively in the use and end the thick liquid effect. Furthermore, the width of the alloy plate is b, and the overlapping width b1, b1 and b 356 of each grout stopping plate are 0.05b and 0.6b respectively.
Further, the first bending part and the second bending part are connected through an inscribed arc.
Furthermore, the alloy plate is a wear-resistant alloy plate, the hardness of the wear-resistant alloy plate is greater than HRC40, and the use of the wear-resistant alloy plate can ensure that the grout stop plate has good wear resistance in the use process, so that the service time is prolonged, the grout stop plate cannot be frequently replaced, and the service life is long.
Further, the alloy plate is a 65Mn spring plate.
Furthermore, the grout stopping device can be applied to a single shield TBM or a shield tunneling machine, is arranged on the outer side of the shield tail of the single shield TBM or the shield tunneling machine, and can play an effective grout stopping role.
A construction method of a shield tail outer side grout stopping device comprises the following steps:
the slurry stopping device is arranged on the outer side of the shield tail;
in the tunneling process, the grout stopping device moves forwards along with the tunneling of the excavation, the included angle between the second bending part and the length direction of the shield tail is changed to 10-30 degrees from the original angle, and each group of grout stopping assemblies is tightly attached to the rock wall of the excavation face to form a sealed space;
in the grouting process, the sealing space formed by each group of grout stopping assemblies is used for separating grout in a layering way, so that grout leakage is prevented, and grouting construction is completed.
Further, after each group of grout stopping assemblies and the rock wall form a sealing space, shield tail sealing grease can be injected into the sealing space between the grouting assemblies of each group, the sealing performance of the grout stopping device can be enhanced through the injection of the shield tail sealing grease, and the grout stopping effect of the grout stopping device is improved.
Compared with the prior art, the invention has the beneficial effects that:
1. the grout stopping device is provided with a plurality of grout stopping assemblies on the outer side of the shield tail, the grout stopping assemblies are formed by a plurality of grout stopping plates which are circumferentially arranged along the outer side of the shield tail in a staggered overlapping mode, the grout stopping plates comprise a plurality of layers of alloy plates, and the grout stopping plates and the length direction of the shield tail form an angle of 20-80 degrees; the device has the advantages of high installation progress, stability, reliability and long service life.
2. Each group of grout stopping components of the grout stopping device of the invention extend backwards due to stress to form a closed space with the rock wall in the construction process, thus enhancing the sealing property of the grouting environment, preventing the grout leakage phenomenon, reducing the waste of grout and ensuring the installation quality of duct pieces.
3. The grout stopping device is installed on the shield tail, so that the supplementary grouting time and a large amount of cost of a subsequent formed tunnel can be shortened, the safety, the quality and the progress of the construction process can be well guaranteed, the grout stopping device is suitable for being installed on a single shield TBM or a shield tunnel boring machine, an effective grout stopping effect is achieved, and the development prospect is good.
Description of the drawings:
FIG. 1 is a schematic structural view of a slurry stopping device at the outer side of a shield tail in embodiment 1;
FIG. 2 is a partial schematic view of a slurry stopping assembly of the slurry stopping device at the outer side of the shield tail in the embodiment 1;
FIG. 3 is a schematic plan view of a slurry stopping plate of the slurry stopping device at the outer side of the shield tail in example 1;
FIG. 4 is a partial plan view of a slurry stopping assembly of the slurry stopping device at the outer side of the shield tail in the embodiment 1;
FIG. 5 is a schematic structural view of a slurry stopping device at the outer side of the shield tail in embodiment 2;
FIG. 6 is a partial schematic view of a slurry stopping assembly of the slurry stopping device at the outer side of the shield tail in embodiment 2;
FIG. 7 is a schematic view showing the construction effect of the slurry stopping device at the outer side of the shield tail in embodiment 3;
the labels in the figure are: 1-shield tail, 11-shield tail inner side, 12-shield tail outer side, 13-fixed block, 2-alloy plate, 21-first bending part, 22-second bending part, 3-fixed base, 31-first fixed base, 32-second fixed base, 4-screw, 5-segment, 6-sealing brush and 7-rock wall.
Detailed Description
The present invention will be described in further detail with reference to test examples and specific embodiments. It should be understood that the scope of the above-described subject matter is not limited to the following examples, and any techniques implemented based on the disclosure of the present invention are within the scope of the present invention.
Example 1
As shown in fig. 1-4, a slurry stopping device outside a shield tail comprises at least two slurry stopping assemblies, each slurry stopping assembly is distributed along the length direction of the shield tail 1 and connected to the shield tail outer side 12, each slurry stopping assembly comprises a plurality of slurry stopping plates, each slurry stopping plate 2 is arranged along the shield tail outer side 12 in a staggered and overlapped mode, each slurry stopping plate comprises a plurality of overlapped alloy plates 2, each alloy plate 2 comprises a first bending portion 21 and a second bending portion 22, the first bending portion 21 is parallel to the length direction of the shield tail 1, and the included angle between the second bending portion 22 and the length direction of the shield tail 1 is 20-80 °.
As shown in fig. 1, the grout stopping device of the present embodiment is installed outside the shield tail of a single shield TBM, the grout stopping device is provided with three grout stopping assemblies, each grout stopping assembly is fixedly connected to a recessed step on the outer side 12 of the shield tail, the grout stopping assembly of the first group is arranged at the rearmost end of the shield tail 1, and the grout stopping assemblies of the second group and the grout stopping assemblies of the third group are respectively and uniformly distributed along the advancing direction of the shield body.
The grout stopping assembly comprises a plurality of grout stopping plates and a fixed base 3, as shown in fig. 2, each grout stopping plate is circumferentially distributed along the outer side 12 of the shield tail, the fixed base 3 comprises a first fixed base 31 and a second fixed base 32, the first fixed plate 31 is arranged between the grout stopping plates and the outer side 12 of the shield body, and the second fixed plate 32 is arranged on the outer side of the grout stopping plates. There is the welding reinforcement in the junction of first fixed baseplate 31 and second fixed baseplate 32, can form a whole, be fixed in between first fixed baseplate 31 and second fixed baseplate 32 with the first kink 21 of every alloy plate 2, play the supporting role, and end every thick liquid board fixed welding at shield tail outside 12 through screw 4, simultaneously, second fixed baseplate 32 all welds the reinforcement with the horizontal connection department to shield body outside 12 and the vertical junction of second fixed baseplate 32 and the fixed block 13 of shield body outside 12, can let and end thick liquid subassembly and shield tail 1 have more firm being connected, prevent to end thick liquid subassembly and drop in the work progress. The first fixed base 31 and the second fixed base 32 are both wear-resistant alloy plates, and the thicknesses of the plates are both 10 mm. As can be seen from figure 1, the top surface of the first fixing base 31 of the three grout stopping assemblies is lower than the outer side 12 of the shield tail, and the top surface of the fixing block 13 connected with the first grout stopping assembly and the second grout stopping assembly is flush with the outer side 12 of the shield tail, so that the abrasion of the fixing base 3 and the fixing block 13 in the construction process can be reduced.
The grout stopping plates comprise a plurality of overlapped alloy plates 2, each grout stopping plate in the embodiment adopts four overlapped alloy plates 2, each alloy plate 2 comprises a first alloy plate and a second alloy plate, the first alloy plate is adopted as the first layer of alloy plate 2 and the last alloy plate 2, the thickness is 1mm, the second alloy plate is adopted as the middle layer of alloy plate 2, the thickness is 0.6mm, in the grout stopping assembly formed by arranging the grout stopping plates, each grout stopping plate is arranged on the outer side 12 of the shield tail in a staggered and overlapped mode to form a group of grout stopping assemblies, the width of each alloy plate 2 is b, the overlapped width b1 of each grout stopping plate is b1 in the embodiment, and as shown in figure 4, gaps among the grout stopping plates can be prevented, and the grout stopping effect can be ensured in the using process. As shown in fig. 3, the alloy plate 2 includes a first bent portion 21, a second bent portion 22, and an inscribed arc connecting the first bent portion 21 and the second bent portion 22, an included angle between the second bent portion 22 and the shield tail 1 is 50 °, the alloy plate 2 is a wear-resistant alloy plate, which is a 65Mn spring plate, and the hardness is HRC 43-48. The alloy plate 2 is a wear-resistant alloy plate, so that the slurry stop plate has good wear resistance in the use process, the service life is prolonged, frequent replacement is avoided, and the service life is long.
Example 2
As shown in fig. 5-6, this embodiment shows another slurry stopping device at the outer side of the shield tail, and the slurry stopping device of this embodiment is similar to that of embodiment 1, except that two sets of grouting assemblies and different slurry stopping plates are adopted.
As shown in figure 5, the grout stopping device is provided with two groups of grout stopping assemblies, each group of grout stopping assemblies is fixedly connected on the sunken step on the outer side 12 of the shield tail, the first group of grout stopping assemblies is arranged at the rearmost end of the shield tail 1, and the second group of grout stopping assemblies is arranged in the advancing direction along the shield body. In the embodiment, eight overlapped alloy plates 2 are adopted for each grout stopping plate, each grout stopping plate is arranged outside the shield tail 12 in a staggered overlapping mode to form a group of grout stopping assemblies, as shown in fig. 7, the first alloy plate 2 and the last alloy plate 2 are the same in thickness, the thickness is 0.8mm, the thickness of the middle layer alloy plate 2 is the same in thickness, the thickness is 0.3mm, and in the arrangement of the grout stopping plates into the grout stopping assemblies, each grout stopping plate is arranged outside the shield tail 12 in a staggered overlapping mode to form a group of grout stopping assemblies.
Example 3
As shown in fig. 7, this embodiment shows a construction method of the slurry stopping device at the outer side of the shield tail in embodiment 1, which includes the following steps:
installing a grout stopping device on the outer side 12 of the shield tail of the single shield TBM, and forming three groups of grout stopping assemblies on the outer side 12 of the shield tail;
in the single shield TBM tunneling process, the grout stopping device moves forwards along with the tunneling of the excavation, the end part of the grout stopping component is tightly contacted with the rock wall 7, the included angle between the second bending part 22 and the shield tail 1 in the length direction is changed from the original angle of 50 degrees to 20 degrees, and the grout stopping device is tightly attached to the rock wall 7 to form a sealed space; the slurry stopping components at the rearmost end of the shield tail 1, the sealing brushes 6 on the inner side 11 of the shield body and the duct pieces 5 form a sealing space, and the other two groups of components, the rock wall 7 and the outer side 12 of the shield tail form two sealing spaces, namely three groups of slurry stopping components form three sealing spaces;
in the grouting process, the sealing space formed by each group of grout stopping assemblies is used for carrying out layered isolation on grout, so that grout leakage is prevented, and grouting construction is completed.
The slurry stopping device can effectively play a role in stopping slurry in construction, avoids slurry from flowing to the soil bin to cause slurry loss, reduces the wrapping of slurry on the cutter head and the shield body, and eliminates the risk of locking the shield body. The slip casting is filled behind the section of jurisdiction in time to propulsion process, can fix the section of jurisdiction after the thick liquid solidifies, has avoided causing section of jurisdiction come-up displacement phenomenon because of the slip casting untimely or fill not enough, has reduced section of jurisdiction mistake platform and damaged phenomenon. The method can shorten the supplementary grouting time and a large amount of cost of the subsequent formed tunnel, can well ensure the safety, quality and progress of the whole construction process, and the grout stopping device is suitable for most single shield TBMs or the tunneling sections of shield tunnel boring machines and has good development prospect.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. The utility model provides a shield tail outside ends thick liquid device, its characterized in that, it includes at least two sets of thick liquid subassemblies that end to starch the device ends thick liquid subassembly and distributes and fixed connection in shield tail outside (12) along shield tail (1) length direction, it includes a plurality of thick liquid boards that end to starch the subassembly, every end the thick liquid board and follow shield tail outside (12) circumference adopts the overlap joint mode of staggering to arrange, every end the thick liquid board and include alloy plate (2) that the polylith overlapped and set up, alloy plate (2) include first kink (21) and second kink (22), first kink (21) are parallel with shield tail (1) length direction, second kink (22) are 20-80 with shield tail (1) length direction's contained angle.
2. The slurry stopping device at the outer side of the shield tail of claim 1, wherein the slurry stopping assembly further comprises a fixing base (3), and the fixing base (3) is used for installing the first bending part (21) of the slurry stopping plate.
3. The outboard shield tail grout stopping device of claim 2, wherein each set of grout stopping components is fixedly connected to the recessed step of the outboard shield tail (12), and the top surface of the fixing base (3) is lower than or flush with the outboard shield tail (12).
4. The shield tail outer grout stopping device according to claim 2, wherein the fixing base (3) comprises a first fixing base (31) and a second fixing base (32), the first fixing base (31) is arranged between the grout stopping plate and the shield tail outer side (12), the second fixing base (32) is arranged on the outer side of the grout stopping plate, and the fixing base (3) is fixed on the shield tail outer side (12) through a screw (4).
5. The outboard shield tail grout stopping device according to claim 1, wherein the grout stopping plates comprise at least three overlapped alloy plates (2), the alloy plates (2) comprise a first alloy plate and a second alloy plate, the first alloy plate is adopted as the first layer of the alloy plate (2) and the last layer of the alloy plate (2), and the second alloy plate is adopted as the intermediate layer of the alloy plate (2).
6. The shield tail outer slurry stopping device according to claim 5, wherein the thickness of the first alloy plate is 0.8-1.5mm, and the thickness of the second alloy plate is 0.2-1 mm.
7. The shield tail outer grout stopping device according to claim 1, wherein the width of the alloy plate (2) is b, and the overlapping width b1, b1 and b1 of each grout stopping plate are 0.6 b.
8. The shield tail outer grout stopping device according to claim 1, wherein the first bending part (21) and the second bending part (22) are connected through an inscribed arc.
9. The outboard shield tail grout stop device according to claim 1, wherein the alloy plate (2) is a 65Mn spring plate.
10. A construction method of the shield tail outer grout stopping device as claimed in any one of claims 1 to 9, which comprises the following steps:
the slurry stopping device is arranged on the outer side (12) of the shield tail;
in the tunneling process, the grout stopping device moves forwards along with the tunneling of the excavation, the included angle between the second bending part (22) and the length direction of the shield tail (1) is changed to 10-30 degrees from the original angle, and each group of grout stopping assemblies is tightly attached to the rock wall (7) of the excavation surface to form a sealed space;
in the grouting process, the sealing space formed by each group of grout stopping assemblies is used for separating grout in a layering way, so that grout leakage is prevented, and grouting construction is completed.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011052198.XA CN112228086A (en) | 2020-09-29 | 2020-09-29 | Shield tail outer side grout stopping device and construction method thereof |
| PCT/CN2020/128511 WO2022067993A1 (en) | 2020-09-29 | 2020-11-13 | Shield tail outer side grout stop device and construction method therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011052198.XA CN112228086A (en) | 2020-09-29 | 2020-09-29 | Shield tail outer side grout stopping device and construction method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112228086A true CN112228086A (en) | 2021-01-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011052198.XA Pending CN112228086A (en) | 2020-09-29 | 2020-09-29 | Shield tail outer side grout stopping device and construction method thereof |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN112228086A (en) |
| WO (1) | WO2022067993A1 (en) |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100572751C (en) * | 2008-02-26 | 2009-12-23 | 广东水电二局股份有限公司 | A kind of using method of style shield tail sealing device of shield machine |
| CN205532610U (en) * | 2016-01-29 | 2016-08-31 | 甘肃建投装备制造有限公司 | A shield tail brush for a shield machine |
| CN206016811U (en) * | 2016-08-31 | 2017-03-15 | 杭州市市政工程集团有限公司 | A kind of shield machine that brushes outside installation afterbody |
| CN107165645B (en) * | 2017-07-24 | 2023-08-15 | 中铁隧道股份有限公司 | Major diameter slurry shield tunnel starts entrance to a cave sealing device |
| JP6898890B2 (en) * | 2018-07-20 | 2021-07-07 | 株式会社奥村組 | Shield excavator |
| CN110056364B (en) * | 2019-04-25 | 2024-03-22 | 中铁二院工程集团有限责任公司 | External sealing structure for tunnel boring machine |
| CN210829273U (en) * | 2019-06-11 | 2020-06-23 | 中铁三局集团第二工程有限公司 | Slurry stopping sealing device of shield machine |
| CN110195594A (en) * | 2019-07-02 | 2019-09-03 | 黄河勘测规划设计研究院有限公司 | Shield formula TBM development machine synchronous grouting method |
| CN211008650U (en) * | 2019-12-04 | 2020-07-14 | 中南山河股份有限公司 | Shield machine with tail outer brush |
-
2020
- 2020-09-29 CN CN202011052198.XA patent/CN112228086A/en active Pending
- 2020-11-13 WO PCT/CN2020/128511 patent/WO2022067993A1/en active Application Filing
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| WO2022067993A1 (en) | 2022-04-07 |
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