CN209892202U - Novel tail shield waterproof sealing system - Google Patents
Novel tail shield waterproof sealing system Download PDFInfo
- Publication number
- CN209892202U CN209892202U CN201920565481.9U CN201920565481U CN209892202U CN 209892202 U CN209892202 U CN 209892202U CN 201920565481 U CN201920565481 U CN 201920565481U CN 209892202 U CN209892202 U CN 209892202U
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- 238000007789 sealing Methods 0.000 title claims abstract description 120
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 82
- 239000010959 steel Substances 0.000 claims abstract description 82
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 19
- 238000001514 detection method Methods 0.000 claims description 15
- 235000013358 Solanum torvum Nutrition 0.000 claims description 11
- 240000002072 Solanum torvum Species 0.000 claims description 11
- 239000004576 sand Substances 0.000 claims description 7
- 239000011083 cement mortar Substances 0.000 claims description 5
- 238000005299 abrasion Methods 0.000 claims description 4
- 238000009955 starching Methods 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 6
- 230000008859 change Effects 0.000 abstract description 4
- 238000010276 construction Methods 0.000 abstract description 4
- 239000002689 soil Substances 0.000 abstract description 4
- 230000008901 benefit Effects 0.000 abstract description 2
- 230000005641 tunneling Effects 0.000 description 17
- 230000000694 effects Effects 0.000 description 5
- 239000011440 grout Substances 0.000 description 5
- 239000004519 grease Substances 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000003466 welding Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000004570 mortar (masonry) Substances 0.000 description 2
- 241000282836 Camelus dromedarius Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000004078 waterproofing Methods 0.000 description 1
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- Lining And Supports For Tunnels (AREA)
Abstract
A novel tail shield waterproof sealing system relates to the technical field of shield method tunnel construction. It includes: the tail shield casing and the section of jurisdiction of shield structure machine are provided with waterproof sealing structure between tail shield casing and the section of jurisdiction, and waterproof sealing structure includes: the steel ring is arranged on the shield machine shell; a plurality of groups of first steel sleeves are arranged on the tail shield shell; a first waterproof seal disposed within the first steel jacket; the second steel sleeve is arranged at the rear part of the first steel sleeve in the tail shield shell; and a second watertight seal disposed within the second steel jacket. Adopt above-mentioned technical scheme's novel waterproof sealing system of tail shield can be safe practical under the environment of different soil and water pressure, different tunnelling length, and it is wide to have application scope, and it is fast to change, practices thrift the cost, changes simply, and is sealed effectual, advantage that factor of safety is high.
Description
Technical Field
The utility model relates to a shield constructs method tunnel construction technical field, concretely relates to novel tail shield waterproof sealing system.
Background
The shield waterproof sealing is a waterproof sealing structure formed by a steel plate brush waterproof sealing piece and a grout stop sealing piece in a gap between a shield shell and a duct piece of a shield machine in the shield tunneling process, sealing grease is continuously injected into the steel plate brush waterproof sealing cavity in a pressing mode to form a shield waterproof sealing system, and the safety risk of water burst and sand burst of a shield is prevented when the shield tunneling.
The existing tail shield waterproof seal is formed by welding and installing a plurality of steel plate brush seals in a tail shield shell to form 3-4 steel plate brush seals, and a grout stop sealing ring is installed at the tail part of the tail shield waterproof seal system. In recent years, in order to improve the waterproof effect of the tail shield, the service life and the waterproof effect are improved by lengthening the sealing length and material performance of the steel plate brush. Meanwhile, the original welding installation is changed into a bolt fixing structure for realizing quick replacement; the tail shield grout stopping seal is changed from the original steel plate brush seal into a rubber seal ring, so that the grout stopping effect and the durable time of the tail shield steel plate brush seal are improved.
The existing steel plate brush sealing waterproof system is generally only suitable for water pressure below 0.65bar, and a shield tunnel with the length less than 3km is tunneled continuously at one time. According to the construction requirements of the shield tunnel project at present, the water pressure reaches 3km-11km (or longer distance) and 3.5bar-10bar after one-time continuous tunneling through rivers, lakes and seas, so that the requirements of the tail shield on sealing and waterproof performance and durability need to meet the requirements of safe use and rapid and safe replacement of the tail shield sealing and waterproof guarantee under the conditions of an ultra-long shield tunnel and ultra-high water pressure, and therefore, the improvement is needed.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to prior art's defect and not enough, provide a novel waterproof sealing system of tail shield, can be safe practical under the environment of different soil and water pressure, different tunnelling length, it is wide to have application scope, and it is fast to change, practices thrift the cost, changes simply, and is sealed effectual, advantage that factor of safety is high.
In order to achieve the above object, the utility model adopts the following technical scheme: a novel waterproof sealing system of tail shield, includes: the tail shield casing and the section of jurisdiction of shield structure machine, the tail shield casing with be provided with waterproof sealing structure between the section of jurisdiction, when the shield structure machine is tunneled, waterproof sealing structure is used for preventing the tail shield gushing water and gush sand, tail shield casing afterbody is provided with only thick liquid board and the check valve that rubber was made, waterproof sealing structure includes: the steel ring is arranged in the shield tail shield shell and fixed by bolts; the tail shield shell is internally provided with a plurality of first steel sleeves; the first waterproof sealing piece is arranged in the first steel sleeve and used for preventing muddy water from entering the inner part of the pipe piece; the second steel sleeve is arranged in the tail shield shell and is positioned at the rear part of the first steel sleeve; and the second waterproof sealing piece is arranged in the second steel sleeve and is used for preventing the muddy water mortar from entering the waterproof sealing structure.
The second steel bushing is provided with two bosses in a protruding mode, and an emergency waterproof sealing piece is fixedly installed between the bosses.
And a plurality of first steel sleeves and a plurality of second steel sleeves are welded and connected into a whole.
The first steel sleeve is provided with three or four channels, and the quantity relation of the first waterproof sealing rings and the first steel sleeve is in one-to-one correspondence relation.
The first waterproof sealing element is a camel-shaped sealing ring or a steel plate brush seal.
The waterproof sealing system of tail shield still includes: the system comprises a detection module, a data acquisition module, a PLC module, an industrial personal computer module and an early warning module; the detection module is arranged in the waterproof sealing structure and connected with the data acquisition module, and is used for detecting the waterproof sealing structure and sending detected data to the data acquisition module; the output end of the data acquisition module is connected with the PLC module, and the data acquisition module is used for collecting the data detected by the detection module and sending the collected data to the PLC module; the PLC module is connected with the industrial personal computer module and is used for receiving the data acquired by the data acquisition module, analyzing and calculating the data and sending the result of the analysis and calculation to the industrial personal computer module; the industrial personal computer module is connected with the early warning module and is used for sending a control signal to the early warning module according to the information sent by the PLC module; the early warning module is used for receiving control signals sent by the industrial personal computer module for early warning.
The detection module is a sensor group arranged inside the first waterproof sealing piece and inside the second waterproof sealing piece.
The sensor group includes: the pressure sensor is used for detecting the pressure born by the camel-shaped sealing ring and the second waterproof sealing piece, and the abrasion sensor is used for detecting the abrasion loss of the camel-shaped sealing ring and the second waterproof sealing piece.
The early warning module is any one or two of a buzzer, an alarm lamp and a display.
After the technical scheme is adopted, the utility model discloses beneficial effect does:
firstly, when cement mortar is injected into a tail shield shell through a channel, a user can determine the number of the required first steel sleeves and first waterproof sealing pieces according to the tunneling length and the water-soil pressure calculation of the tunneling environment, and then adjust the number of the first steel sleeves and the first waterproof sealing pieces according to the calculation result, so that the sealing and waterproof effects of the tail shield in the tunneling process of the shield tunneling machine are guaranteed, the sealing and waterproof structure arranged in the way can effectively prevent muddy water from entering the inside of the tail shield of the shield tunneling machine, further the phenomenon of water burst and sand burst of the tail shield of the shield tunneling machine is avoided, the waterproof performance of the waterproof sealing structure of the tail shield is improved, the safety coefficient of the shield tunneling machine in the tunneling process is improved, the tunneling length of the shield tunneling machine is effectively prolonged, and the waterproof sealing effect of the shield tunneling machine in the long-distance tunneling process is guaranteed;
secondly, when the first waterproof sealing element is damaged or needs to be replaced, the emergency waterproof sealing element arranged on the second steel sleeve is inflated or filled with grease, so that the emergency waterproof sealing element is expanded, a gap between the tail shield shell and the duct piece is sealed, and a new waterproof sealing system is convenient to install and replace;
thirdly, when the shield constructs the machine during operation, monitor waterproof sealing structure through the sensor group that sets up in first waterproof sealing spare, and data transmission to the data acquisition module that will detect, the rethread PLC module carries out the analytical computation to the data of gathering, send the result of analytical computation to the industrial computer module, send the instruction to the early warning module through the industrial computer module, thereby send early warning signal when the wearing and tearing volume of first waterproof sealing spare exceeds the maximum value, realize warning and waterproof sealing structure's change in advance before the risk, can effectively control the emergence of gushing water and gushing sand risk.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
FIG. 1 is a block diagram showing the overall structure of the present embodiment;
FIG. 2 is a sectional view of the present embodiment;
FIG. 3 is an enlarged view corresponding to detail A in FIG. 2;
fig. 4 is a state diagram of the present embodiment at the time of replacement.
Description of reference numerals: 1. a tail shield shell; 2. a duct piece; 3. a waterproof sealing structure; 4. a detection module; 5. a data acquisition module; 6. a PLC module; 7. an industrial personal computer module; 8. an early warning module; 9. a steel ring; 10. a first steel jacket; 11. a first waterproof seal; 12. a second steel jacket; 13. a second waterproof seal; 14. a convex ring; 15. a boss; 16. an emergency waterproof seal; 17. fastening a bolt; 18. a one-way valve; 19. a grout stopping plate; 20. a guide plate; 21. a propulsion cylinder; 22. a new first steel jacket; 23. a new second steel jacket; 24. a new first waterproof seal; 25. a new second waterproof seal; 26. a new emergency water seal; 27. a new waterproof and sealing structure.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment as required without making a contribution, but all the embodiments are protected by the patent law within the scope of the claims of the present invention.
The embodiment relates to a novel waterproof sealing system of tail shield, as shown in fig. 1-4, include: the tail shield comprises a tail shield shell body 1, a duct piece 2, a waterproof sealing structure 3, a detection module 4, a data acquisition module 5, a PLC module 6, an industrial personal computer module 7 and an early warning module 8.
As shown in fig. 1 to 3, the waterproof sealing structure 3 is provided between the tail shield shell 1 and the duct piece 2. When the shield machine tunnels, the waterproof sealing structure 3 is used for preventing the tail shield from gushing water and sand. The detection module 4 is arranged in the waterproof sealing structure 3 and is connected with the data acquisition module 5. The detection module 4 is used for detecting the waterproof sealing structure 3 and sending the detected data to the data acquisition module 5. The output end of the data acquisition module 5 is connected with the PLC module 6, and the data acquisition module 5 is used for collecting the data detected by the detection module 4 and sending the collected data to the PLC module 6. The PLC module 6 is connected with the industrial personal computer module 7. The PLC module 6 is used for receiving the data acquired by the data acquisition module 5, analyzing and calculating the data, and sending the result of the analysis and calculation to the industrial personal computer module 7. The industrial personal computer module 7 is connected with the early warning module 8, and the industrial personal computer module 7 is used for sending a control signal to the early warning module 8 according to the information sent by the PLC module 6. And the early warning module 8 is used for receiving the control signal early warning sent by the industrial personal computer module 7.
As shown in figures 1-3, the tail of the cement mortar channel in the tail shield shell 1 is provided with a rubber-made mortar stop plate 19 and a one-way valve 18. The waterproof and sealing structure 3 includes: steel ring 9, first steel bushing 10, first waterproof seal 11, second steel bushing 12 and second waterproof seal 13.
As shown in fig. 1-3, the steel ring 9 is disposed in the shield shell of the tail of the shield machine. The first steel sleeve 10 is arranged in the tail shield shell 1. The first waterproof sealing member 11 disposed in the first steel sleeve 10 is used to prevent muddy water from entering the interior of the tail shield housing 1. The second steel jacket 12 is arranged in the tail shield shell behind the first steel jacket 10. The second waterproof sealing element 13 is arranged in the second steel sleeve 12 and used for preventing cement mortar from entering the waterproof sealing structure 3.
As shown in fig. 1-3, the first steel jacket 10 is provided with a plurality of first steel jackets 10, and the plurality of first steel jackets 10 and the first steel jacket 10 and the second steel jacket 12 are welded and connected into a whole. During specific construction, a user can calculate the required number of the first steel sleeves 10 according to the tunneling length and the underground water-soil pressure of the tunneling environment, so as to select the required number according to requirements. The number relation of the first waterproof sealing rings and the first steel sleeves 10 is a one-to-one correspondence, that is, each first steel sleeve 10 is provided with one first waterproof sealing element 11.
In the embodiment, as shown in fig. 1-3, the shield tail body of the shield machine is cylindrical, the first steel sleeve 10 and the second steel sleeve 12 are both annular, and the steel ring 9, the first steel sleeve 10 and the second steel sleeve 12 are all tightly installed in the tail shield shell 1. The first steel jacket 10 is used for fixing a first waterproof sealing member 11 therein. The second steel sleeve 12 is used to secure a second water tight seal 13. The first steel jacket 10 is provided with four channels, and the corresponding first waterproof sealing member 11 is provided with four channels. The first waterproof sealing member 11 is a camel-shaped sealing ring. A convex ring 14 is arranged on the left side of the first steel sleeve 10, the first waterproof sealing element 11 is tightly pressed and fixed in the first steel sleeve 10 through a bolt during installation, and a waterproof rubber sealing lip is tightly wrapped on the outer circle surface of the duct piece 2, so that waterproof sealing is realized. An emergency waterproof sealing piece 16 is fixedly arranged between the grooves 15 in the second steel sleeve 12. When the second waterproof sealing element 13 is damaged or reaches the service life and needs to be replaced, the emergency waterproof sealing element 16 is inflated or filled with grease, so that the emergency waterproof sealing element 16 expands and is compacted with the outer surface of the duct piece 2 to keep the grease pressure inside to realize sealing and waterproofing, and therefore the installation of a new sealing structure 3 in the tail shield is facilitated. The first waterproof seal 11, the second waterproof seal 13, and the emergency waterproof seal 16 are fixedly fitted by fastening bolts 17.
As shown in fig. 1-4, a guide plate 20 is disposed on the left side of the steel ring 9, when the waterproof sealing structure 3 is replaced, the guide plate 20 is removed, the steel ring 9 leaves a new installation space for the waterproof sealing structure 3, and a second steel sleeve 23 and a first steel sleeve 22 are sequentially installed in the space left by the tail shield shell, and are completely attached to the inner surface of the tail shield shell 1 and tightly attached to the original first steel sleeve 10. Then a new second waterproof seal 25, a new first waterproof seal 24 and a new emergency seal 26 are fixed by the fastening bolts 17 and installed in the new second steel sleeve 23 and the new first steel sleeve 22 after welding, respectively. And finally, pushing the new waterproof sealing structure 27 to a specified size through a pushing oil cylinder 21 of the shield machine, pushing the original waterproof sealing structure 3 out of the tail shield for replacement, and completing the replacement of the new waterproof sealing structure 27.
As shown in fig. 1-4, the detection module 4 is a sensor group disposed inside the first watertight seal 11 and inside the second watertight seal 13. The sensor group includes: pressure sensors and wear sensors. The pressure sensor is used for detecting the pressure born by the camel-shaped sealing ring and the second waterproof sealing piece 13. The wear sensor is used to detect the amount of wear of the camel seal and the second waterproof seal 13. The early warning module 8 is any one or two of a buzzer, an alarm lamp and a display. In this embodiment, the warning module 8 displays a warning.
The working principle of the present embodiment is roughly as follows: at the shield structure machine during operation, monitor waterproof sealing structure 3 through the sensor group that sets up in first waterproof sealing member 11, and data transmission to data acquisition module 5 with detecting, rethread PLC module 6 carries out the analytical computation to the data of gathering, mechanism with analytical computation sends to industrial computer module 7, send out the instruction to early warning module 8 through industrial computer module 7, thereby at first waterproof sealing member 11, send early warning signal when the wearing and tearing volume of second waterproof sealing member 13 surpasss the maximum value, realize dangerous warning in advance and waterproof sealing structure 3 change in advance, can effective control gush the emergence of water and gush sand risk.
Above, the technical solution of the present invention is only used for illustration and not limitation, and other modifications or equivalent replacements made by the technical solution of the present invention by those of ordinary skill in the art should be covered in the scope of the claims of the present invention as long as they do not depart from the scope of the technical solution of the present invention.
Claims (9)
1. A novel waterproof sealing system of tail shield, includes: shield constructs tail shield casing (1) and section of jurisdiction (2) of machine, its characterized in that, tail shield casing (1) with be provided with waterproof sealing structure (3) between section of jurisdiction (2), when the shield constructs the machine tunnelling, waterproof sealing structure (3) are used for preventing the tail shield from gushing water and gushing sand, cement mortar passageway tip is provided with check valve (18) in tail shield casing (1), tail shield casing (1) tip is provided with the sealed 13 and only board (19) of starching of ending that rubber was made, waterproof sealing structure (3) include:
a steel ring (9) arranged in the shield machine shell;
a plurality of first steel sleeves (10) arranged on the tail shield shell (1);
the first waterproof sealing piece (11) is arranged in the tail shield shell (1), is positioned in the first steel sleeve (10) and is used for preventing muddy water from entering the interior of the tail shield shell (1);
a second steel sleeve (12) arranged in the tail shield shell (1) and positioned at the rear part of the first steel sleeve (10); and the number of the first and second groups,
and a second waterproof sealing member (13) arranged in the second steel sleeve (12) and used for preventing cement mortar from entering the waterproof sealing system.
2. The novel tail shield waterproof sealing system of claim 1, characterized in that two bosses (15) are convexly arranged on the second steel sleeve (12), and an emergency waterproof sealing member (16) is fixedly arranged between the two bosses (15).
3. The novel tail shield waterproof sealing system of claim 2, characterized in that a plurality of the first steel sleeves (10) and the second steel sleeves (12) are welded and connected into a whole.
4. The novel tail shield waterproof sealing system according to claim 3, characterized in that the first steel sleeve (10) is provided with three or four, and the number of the first waterproof sealing members (11) and the first steel sleeve (10) is in one-to-one correspondence.
5. The novel tail shield waterproof sealing system according to claim 4, wherein the first waterproof sealing member (11) is one of a camel-shaped sealing ring, a camel-shaped sealing ring and a steel plate brush seal combination, or a camel-shaped sealing ring and a steel plate brush seal.
6. The novel tail shield waterproof sealing system of claim 5, further comprising: the system comprises a detection module (4), a data acquisition module (5), a PLC module (6), an industrial personal computer module (7) and an early warning module (8);
the detection module (4) is arranged in the waterproof sealing structure (3) and connected with the data acquisition module (5), and the detection module (4) is used for detecting the waterproof sealing structure (3) and sending detected data to the data acquisition module (5);
the output end of the data acquisition module (5) is connected with the PLC module (6), and the data acquisition module (5) is used for collecting the data detected by the detection module (4) and sending the collected data to the PLC module (6);
the PLC module (6) is connected with the industrial personal computer module (7), and the PLC module (6) is used for receiving the data acquired by the data acquisition module (5), analyzing and calculating the data and sending the result of the analysis and calculation to the industrial personal computer module (7);
the industrial personal computer module (7) is connected with the early warning module (8), and the industrial personal computer module (7) is used for sending a control signal to the early warning module (8) according to the information sent by the PLC module (6);
the early warning module (8) is used for receiving a control signal sent by the industrial personal computer module (7).
7. The new tail shield waterproof sealing system according to claim 6, characterized in that the detection module (4) is a sensor group arranged inside the first waterproof seal (11) and inside the second waterproof seal (13).
8. The novel tail shield waterproof sealing system of claim 7, wherein the sensor group comprises: the pressure sensor is used for detecting the pressure born by the camel-shaped sealing ring and the second waterproof sealing piece (13), and the abrasion sensor is used for detecting the abrasion loss of the camel-shaped sealing ring and the second waterproof sealing piece (13).
9. The novel tail shield waterproof sealing system according to any one of claims 6-8, characterized in that the early warning module (8) is any one or two of a buzzer, a warning lamp and a display.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920565481.9U CN209892202U (en) | 2019-04-24 | 2019-04-24 | Novel tail shield waterproof sealing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920565481.9U CN209892202U (en) | 2019-04-24 | 2019-04-24 | Novel tail shield waterproof sealing system |
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| Publication Number | Publication Date |
|---|---|
| CN209892202U true CN209892202U (en) | 2020-01-03 |
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ID=68999654
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920565481.9U Expired - Fee Related CN209892202U (en) | 2019-04-24 | 2019-04-24 | Novel tail shield waterproof sealing system |
Country Status (1)
| Country | Link |
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| CN (1) | CN209892202U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112392489A (en) * | 2019-08-16 | 2021-02-23 | 中国石油天然气集团有限公司 | Sealing member and shield structure sealing assembly comprising same |
-
2019
- 2019-04-24 CN CN201920565481.9U patent/CN209892202U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112392489A (en) * | 2019-08-16 | 2021-02-23 | 中国石油天然气集团有限公司 | Sealing member and shield structure sealing assembly comprising same |
| CN112392489B (en) * | 2019-08-16 | 2022-07-05 | 中国石油天然气集团有限公司 | Sealing member and shield structure sealing assembly comprising same |
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