CN113863958A - Double-liquid grouting system of shield tunneling machine - Google Patents
Double-liquid grouting system of shield tunneling machine Download PDFInfo
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- CN113863958A CN113863958A CN202111250078.5A CN202111250078A CN113863958A CN 113863958 A CN113863958 A CN 113863958A CN 202111250078 A CN202111250078 A CN 202111250078A CN 113863958 A CN113863958 A CN 113863958A
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- 239000007788 liquid Substances 0.000 title claims abstract description 241
- 230000005641 tunneling Effects 0.000 title claims abstract description 35
- 238000003860 storage Methods 0.000 claims abstract description 85
- 238000003756 stirring Methods 0.000 claims abstract description 68
- 238000002156 mixing Methods 0.000 claims abstract description 52
- 239000002994 raw material Substances 0.000 claims abstract description 44
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 40
- 239000012530 fluid Substances 0.000 claims description 21
- 238000005303 weighing Methods 0.000 claims description 18
- 238000007569 slipcasting Methods 0.000 abstract description 8
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 239000002002 slurry Substances 0.000 description 50
- 238000002347 injection Methods 0.000 description 13
- 239000007924 injection Substances 0.000 description 13
- 238000000034 method Methods 0.000 description 13
- 238000004537 pulping Methods 0.000 description 11
- 230000009286 beneficial effect Effects 0.000 description 10
- 239000011440 grout Substances 0.000 description 10
- 230000006872 improvement Effects 0.000 description 9
- 230000008569 process Effects 0.000 description 7
- 238000010276 construction Methods 0.000 description 5
- 239000002689 soil Substances 0.000 description 5
- 238000001514 detection method Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000011049 filling Methods 0.000 description 3
- 235000019353 potassium silicate Nutrition 0.000 description 3
- 238000001556 precipitation Methods 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 230000032258 transport Effects 0.000 description 3
- 238000005345 coagulation Methods 0.000 description 2
- 230000015271 coagulation Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 238000005267 amalgamation Methods 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000037452 priming Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 210000004911 serous fluid Anatomy 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK 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
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK 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
- E21D9/0609—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 with means for applying a continuous liner, e.g. sheets of plastics, between the main concrete lining and the rock
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Civil Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The invention relates to a double-liquid grouting system of a shield tunneling machine. Shield constructs quick-witted biliquid slip casting system includes: the rear matching trailer is used for being connected to the rear part of the shield machine main machine; the liquid A stirring station is arranged on a rear matched trailer and is used for preparing liquid A; the raw material storage bin is arranged on the rear matched trailer and used for supplying raw materials to the liquid A stirring station; the water pipe is connected to the liquid A stirring station and is used for injecting water to the liquid A stirring station; the liquid A pipeline is connected to the liquid A mixing station and is used for transporting the liquid A to the front part of the shield tunneling machine; the liquid B storage tank is arranged on the rear matched trailer and is used for storing liquid B; and the liquid B pipeline is connected to the liquid B storage tank and used for transporting the liquid B to the front part of the shield tunneling machine. Because the slip casting system all sets up on supporting trailer in the back for the thick liquid of A liquid mixing plant production can directly be to A liquid pipeline defeated thick liquid, and the thick liquid of making can realize taking along with the usefulness, has shortened the transportation flow of thick liquid, has avoided long distance transport, has reduced the thick liquid loss, has reduced the slip casting cost.
Description
Technical Field
The invention relates to a double-liquid grouting system of a shield tunneling machine, and belongs to the field of shield method construction.
Background
The shield constructs the machine and at the tunnelling in-process, can have certain building clearance between section of jurisdiction and the soil body, if these building clearances can not get timely filling, cause settlement, the collapse scheduling problem of earth's surface very easily, consequently need realize the reinforcement to the soil body around the section of jurisdiction through slip casting, maintain the stability of the soil body around the section of jurisdiction.
At present, grouting modes are mainly divided into single-liquid grouting and double-liquid grouting. The single-liquid grouting has long slurry solidification time, easy slurry loss, easy precipitation and water separation and poor stability; and the slurry of the double-liquid grouting has short coagulation time and high strength after coagulation, so that the disturbance and settlement of the stratum can be greatly reduced. Therefore, double-fluid grouting is increasingly widely applied to shield construction. Wherein, the two liquids are respectively a liquid A and a liquid B, the liquid A is generally serous fluid, and the liquid B is generally water glass.
At present, the basic flow of double-liquid grouting is as follows: firstly, a stirring station on the ground stirs and prepares slurry, then conveys the prepared slurry to a slurry transport vehicle at a tunnel portal through a pipeline, the slurry transport vehicle transports the slurry to a slurry storage tank matched with the rear of a shield machine, finally, a grouting pump pumps the corresponding slurry in the slurry storage tank to a building gap between a duct piece and an excavated soil body, and the soil body around the duct piece is filled and reinforced through full mixing and solidification of the slurry. Along with the extension of tunnel excavation length, the distance between stirring station and the shield constructs the machine and can be more and more far away, need carry out long distance's transportation to thick liquid at the slip casting in-process, still need prevent its sediment, segregation to the continuous stirring of thick liquid in the transportation simultaneously. This not only has resulted in the loss of thick liquid in the transportation, extravagant, and thick liquid conveying efficiency is low moreover, the energy consumption is high, has increased the slip casting cost.
Disclosure of Invention
The invention aims to provide a double-liquid grouting system of a shield tunneling machine, which aims to solve the technical problems of low slurry transportation efficiency and high energy consumption in the double-liquid grouting process in the prior art.
In order to achieve the purpose, the technical scheme of the double-liquid grouting system of the shield tunneling machine is as follows:
the double-liquid grouting system of the shield machine comprises a rear matched trailer connected to the rear part of a shield machine host, wherein the rear matched trailer is provided with a liquid A stirring station, a liquid B storage tank and a raw material storage bin; the liquid A mixing station is used for preparing liquid A, and is connected with a water pipe for injecting water into the liquid A mixing station and a liquid A pipeline for transporting the liquid A to the front part of the shield tunneling machine; the liquid B storage tank is used for storing liquid B, and is connected with a liquid B pipeline used for transporting the liquid B to the front part of the shield tunneling machine; the raw material storage bin is used for supplying raw materials to the liquid A stirring station.
The beneficial effects are that: the grouting systems are all arranged on the rear matched trailer, so that the grout produced by the A liquid stirring station can be directly transported to the A liquid pipeline, the prepared grout can be taken at any time, the transportation process of the grout is shortened, long-distance transportation is avoided, the grout loss is reduced, and the grouting cost is reduced. Moreover, the slurry is prepared in the tunnel, and the environmental pollution is avoided.
As a further improvement, a liquid A storage tank is connected in parallel to the liquid A pipeline.
The beneficial effects are that: and the A liquid storage tank is used for storing standby slurry, and the A liquid is transported to the front part of the shield machine through the A liquid storage tank when the A liquid stirring station prepares slurry, so that the construction is ensured to be uninterrupted.
As a further improvement, the A liquid storage tank is a stirring tank.
The beneficial effects are that: by the design, the slurry can be prevented from being separated out.
As a further improvement, the A liquid storage tank is connected with the water pipe.
The beneficial effects are that: by such a design, the concentration of the solution A can be adjusted.
As a further improvement, at least two stirring stations for the liquid A are arranged.
The beneficial effects are that: because the space on the supporting trailer in back is less relatively, so the size of A liquid mixing plant 21 on the supporting trailer in back is less, sets up two at least A liquid mixing plants, can guarantee that slurrying speed is greater than slip casting speed, and then guarantees that the construction is incessant.
As a further improvement, all the A liquid stirring stations share the A liquid pipeline.
The beneficial effects are that: the system is simplified, and slurry conveying from each A liquid stirring station to the front part of the shield machine is favorably controlled.
As a further improvement, the device also comprises a screw conveyor, and the raw material storage bin supplies raw materials to the liquid A stirring station through the screw conveyor.
The beneficial effects are that: by the design, automatic feeding is realized, and the labor intensity is reduced.
As a further improvement, the B liquid storage tank is connected with the water pipe.
The beneficial effects are that: by such a design, the concentration of the solution B can be adjusted.
As a further improvement, the liquid outlets of the liquid A stirring station and the liquid B storage tank are provided with filters.
The beneficial effects are that: the filter is used for preventing foreign matters with larger volume from entering the pipeline.
As a further improvement, a weighing module is arranged on the liquid A stirring station.
The beneficial effects are that: the weighing module is used for weighing the weight of the raw materials and the water added into the liquid A mixing station, when the weight of the slurry in the liquid A mixing station reaches the upper limit, the raw material storage bin and the water pipe stop adding the raw materials and the water into the liquid A mixing station 21, and when the weight of the slurry in the liquid A mixing station reaches the lower limit, the liquid A mixing station stops outward slurry conveying.
Drawings
FIG. 1 is a schematic structural diagram of a double-fluid grouting system of a shield tunneling machine according to the invention;
in the figure: 10. a first valve; 11. a liquid B storage tank; 12. a liquid level sensor; 13. a first filter; 14. a second valve; 15. a first liquid-filling pump; 16. a raw material storage bin; 17. a second filter; 18. a screw conveyor; 19. a water pipe; 20. a first weighing module; 21. a liquid A stirring station; 22. a slurry detection module; 23. a flow meter; 24. a third valve; 25. a second weighing module; 26. a third filter; 27. a fourth valve; 28. a second liquid injection pump; 29. a fifth valve; 30. a sixth valve; 31. a liquid A storage tank; 32. a seventh valve; 33. a stirring module; 34. a fourth filter; 35. a third weighing module; 36. an eighth valve; 37. a third liquid injection pump; 38. a ninth valve; 39. a liquid pipeline A; 40. and a liquid B pipeline.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
It is noted that relational terms such as "first" and "second," and the like, which may be present, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, terms such as "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …," or the like, does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Furthermore, the terms "front", "back", "upper", "lower", "left" and "right" are based on the orientations and positional relationships shown in the drawings and are only for convenience in describing the present invention, but do not indicate that the referred device or component must have a specific orientation, and thus, should not be construed as limiting the present invention.
The features and properties of the present invention are described in further detail below with reference to examples.
Embodiment 1 of the shield tunneling machine double-liquid grouting system of the invention:
as shown in fig. 1, the dual-fluid grouting system of the shield machine includes a rear mating trailer (not shown) for connecting to the rear part of the main machine of the shield machine; and the rear matching trailer is provided with a liquid A stirring station 21, a raw material storage bin 16, a liquid A storage tank 31 and a liquid B storage tank 11.
In this embodiment, the raw material storage 16 is used to supply the raw material to the liquid a stirring station 21, and the raw material is in a powder form. Preferably, a screw conveyor 18 is arranged between the liquid a stirring station 21 and the raw material storage bin 16, and the raw material storage bin 16 conveys the raw material to the liquid a stirring station 21 through the screw conveyor 18, so that automatic feeding is realized, and the labor intensity is reduced.
In this embodiment, the discharge port of the raw material storage bin 16 is provided with a second filter 17 to prevent large volume of raw material from entering the liquid a stirring station 21.
In this embodiment, the raw material storage 16 is provided with the first weighing module 20, and the first weighing module 20 is used for weighing the weight of the raw material in the raw material storage 16 in real time, and reminds the staff to replenish the raw material in time when the weight of the raw material is lower than a set value.
In the embodiment, the space on the rear matching trailer is relatively small, so that the size of the liquid A stirring station 21 on the rear matching trailer is small, and two liquid A stirring stations 21 are arranged in consideration of the pulping amount and the required grouting amount of the liquid A stirring station 21 so as to ensure that the pulping speed is greater than the grouting speed and further ensure that the construction is uninterrupted; two screw conveyors 18 are provided, and the two liquid a stirring stations 21 share one raw material storage bin 16 and one liquid a pipeline. In other embodiments, the number of the liquid a stirring stations can be set as required.
In the present embodiment, the two liquid a stirring stations 21 have the same structure and are arranged in parallel, and one of them is taken as an example for description. The liquid A mixing station 21 is connected with a water pipe 19 and a liquid A pipeline 39, and the liquid A pipeline 39 is used for transporting liquid A to the front part of the shield tunneling machine; a third valve 24 is arranged on the water pipe 19, and the third valve 24 is used for controlling whether the water pipe 19 injects water into the liquid A mixing station 21 or not; water and raw materials are added into a liquid A stirring station 21 and then fully stirred to prepare liquid A, wherein the liquid A is cement slurry. Wherein, the water source of water pipe can utilize the water source on the supporting trailer in back.
In this embodiment, a flow meter 23 is disposed on the water pipe 19 upstream of the third valve 24 to monitor the water injection flow rate of the water pipe 19 to the liquid a mixing station.
In this embodiment, the slurry detection module 22 is disposed on the liquid a stirring station 21, and the slurry detection module 22 is configured to detect parameters such as viscosity and specific gravity of the stirred liquid a, and transmit a detection result to the control system to determine whether the slurry is available.
In this embodiment, the second weighing module 25 is disposed on the liquid a mixing station 21, and is used for weighing the weight of the raw material and the water added into the liquid a mixing station 21 and transmitting the weight to the control system, when the weight of the slurry in the liquid a mixing station 21 reaches an upper limit, the raw material storage bin 16 and the water pipe 19 stop adding the raw material and the water into the liquid a mixing station 21, and when the weight of the slurry in the liquid a mixing station 21 reaches a lower limit, the fourth valve 27 is closed, and the liquid a mixing station 21 stops outward slurry delivery.
In this embodiment, a third filter 26 is installed at the liquid outlet of the liquid a stirring station 21, and the third filter 26 is used to prevent foreign matters with a large volume from entering the liquid a pipeline 39. Wherein, the A liquid pipeline 39 is provided with a second liquid-filling pump 28 and a fifth valve 29.
In this embodiment, the liquid a pipeline 39 is connected in parallel to the liquid a storage tank 31 through a spare pipeline, the spare pipeline is provided with a sixth valve 30 at the upstream of the liquid a storage tank 31, and the spare pipeline is provided with an eighth valve 36, a third liquid injection pump 37 and a ninth valve 38 at the downstream of the liquid a storage tank 31 in sequence. The third charge pump 37 is located between the eighth valve 36 and the ninth valve 38, and the third charge pump 37 can be protected when the third charge pump 37 is not operating.
In this embodiment, the stirring module 33 is disposed on the liquid a storage tank 31, that is, the liquid a storage tank 31 is a stirring tank to avoid precipitation of slurry. In this embodiment, the liquid a storage tank 31 is connected to the water pipe 19, the water pipe 19 is provided with a seventh valve 32, and the seventh valve 32 is used to control whether to inject water into the liquid a storage tank 31, so as to adjust the concentration of the slurry.
In this embodiment, the liquid outlet of the liquid a storage tank 31 is provided with a fourth filter 34, and the fourth filter 34 is used for placing a large volume of foreign matter into the liquid a pipeline 39. In this embodiment, the third weighing module 35 is disposed on the a liquid storage tank 31, the third weighing module 35 is used for weighing the a liquid input into the a liquid storage tank 31 and transmitting the weighed a liquid to the control system, when the weight of the slurry in the a liquid storage tank 31 reaches the upper limit, the a liquid stirring station 21 stops inputting the slurry into the a liquid storage tank 31, and when the weight of the slurry in the a liquid storage tank 31 reaches the lower limit, the eighth valve 36 is closed, and the a liquid storage tank 31 stops outward slurry output.
In this embodiment, the liquid B is stored in the liquid B storage tank 11, and the liquid B is water glass. The liquid B storage tank 11 is connected with a water pipe 19, a first valve 10 is arranged on the water pipe 19, and the first valve 10 is used for controlling whether water is injected into the liquid B storage tank 11 or not so as to adjust the concentration of water glass. Wherein, the liquid B storage tank 11 is connected with a liquid B pipeline 40, and the liquid B pipeline 40 is provided with a second valve 14 and a first liquid injection pump 15.
In this embodiment, the liquid outlet of the liquid B storage tank 11 is provided with the first filter 13, and the first filter 13 is used to prevent foreign matters with a large volume from entering the liquid B pipeline 40.
In this embodiment, be equipped with level sensor 12 on B liquid storage jar 11, when the liquid level is less than the lower limit, remind the staff in time to supply B liquid, when the liquid level is higher than the upper limit, stop to supply B liquid in B liquid storage jar 11.
In this embodiment, only one B liquid storage tank 11 is used to store B liquid, considering that the B liquid is used in a small amount and does not need to be stirred.
In this embodiment, two A liquid stirring stations 21 are first stirring station and second stirring station respectively, and slip casting operating mode can be divided into three kinds of situations according to actual conditions:
(1) the first mixing station finishes pulping, the second mixing station finishes pulping, and grouting is carried out. When the pulping of the first mixing station is finished, the fifth valve 29 and the fourth valve 27 of the first mixing station are opened, the liquid A in the first mixing station is transported to the front part of the shield machine through the second liquid injection pump 28, and when the pulping in the first mixing station is finished, the fourth valve 27 of the first mixing station is closed. When the preparation of the slurry in the second mixing station is completed, the fourth valve 27 of the second mixing station is opened, and the liquid A in the second mixing station is transported to the front part of the shield tunneling machine by the second liquid injection pump 28. If the preparation of the slurry in the second mixing station is not completed after the slurry in the first mixing station is used up, the second liquid injection pump 28 and the fifth valve 29 are closed, and the eighth valve 36, the ninth valve 38 and the third liquid injection pump 37 are opened, so that the stored slurry in the liquid a storage tank 31 is delivered to the front part of the shield tunneling machine.
When the A liquid in the first mixing station is used up, the raw material storage bin 16 starts to convey the raw material into the first mixing station, when the weight of the raw material in the first mixing station reaches a designed value, the screw conveyor 18 is closed, the raw material conveying to the first mixing station is stopped, the third valve 24 injects water into the first mixing station, the flow meter 23 records the amount of water injected into the first mixing station, when the amount of water reaches the designed value, the third valve 24 is closed, the water injection into the first mixing station is stopped, and when the weight of the second weighing module 25 reaches a set upper limit, the third valve 24 and the screw conveyor 18 must be closed. After the raw materials and the water are injected, the next stirring pulping is started.
(2) And the first mixing station completes mixing, the second mixing station completes mixing, and grouting is stopped. At this time, the fifth valve 29 is closed, the sixth valve 30 is opened, the slurry in the first mixing station is conveyed to the A liquid storage tank 31 for storage, the third weighing module 35 is used for weighing whether the weight of the A liquid in the A liquid storage tank 31 reaches the design upper limit, if the weight of the A liquid reaches the design upper limit, the sixth valve 30, the second liquid injection pump 28 and the fourth valve 27 are all closed, the first mixing station stops conveying the slurry to the A liquid storage tank 31, and the next pulping cycle is suspended. If the liquid level in the liquid A storage tank 31 does not reach the design upper limit after all the slurry in the first stirring tank is conveyed into the liquid A storage tank 31, the sixth valve 30, the second liquid injection pump 28 and the fourth valve 27 are all closed, and the first stirring station starts to perform the next pulping.
(3) The stirring of the first stirring station is not finished, the stirring of the second stirring station is also not finished, and the grouting is continued. The eighth valve 36, the ninth valve 38 and the third priming pump 37 are opened to deliver the stored slurry in the a-liquid storage tank 31 to the front of the shield tunneling machine. During the slurry transportation process in the a liquid storage tank 31, if the slurry preparation at the first stirring station or the second stirring station is completed, the eighth valve 36, the ninth valve 38 and the third liquid injection pump 37 are closed, the slurry transportation from the a liquid storage tank 31 to the front of the shield tunneling machine is stopped, and the slurry transportation from the first stirring station or the second stirring station to the front of the shield tunneling machine is switched.
The grouting systems are all arranged on the rear matched trailer, so that the grout produced by the A liquid stirring station can be directly transported to the A liquid pipeline, the grout making speed and the grout proportioning can be quickly adjusted according to the working condition change, the prepared grout can be taken and used at any time, the grout transportation process is shortened, the long-distance transportation is avoided, the grout loss is reduced, and the grouting cost is reduced. Moreover, the slurry is prepared in the tunnel, which also meets the environmental protection requirement.
Embodiment 2 of the shield tunneling machine double-liquid grouting system of the invention:
the difference between the embodiment and the embodiment 1 is that in the embodiment 1, the liquid a pipeline 39 is connected in parallel with the liquid a storage tank 31, the liquid a storage tank 31 is used for storing the standby slurry, and when the liquid a mixing station 21 is used for pulping, the liquid a is transported to the front of the shield tunneling machine through the liquid a storage tank 31. In this embodiment, the liquid a storage tank is not provided, and more liquid a mixing stations are provided to ensure that the pulping amount is greater than the grouting amount.
Embodiment 3 of the shield tunneling machine double-liquid grouting system of the present invention:
this embodiment is different from embodiment 1 in that in embodiment 1, the liquid a storage tank 31 is a stirring tank to avoid precipitation of the slurry. In this embodiment, liquid A storage jar is the vibrating vessel to avoid the thick liquid to precipitate. In other embodiments, the liquid a storage tank may be a rotary tank, and a quick coupling is provided on the rotary tank to facilitate connection with a pipeline.
Embodiment 4 of the shield tunneling machine double-liquid grouting system of the present invention:
this embodiment is different from embodiment 1 in that in embodiment 1, the two liquid a stirring stations 21 share the liquid a line 39. In this embodiment, based on the circumstances that sets up two A liquid mixing stations, A liquid pipeline is provided with two, and A liquid pipeline and A liquid mixing station one-to-one, the terminal of two A liquid pipelines and the terminal amalgamation of B liquid pipeline are in the same place.
Embodiment 5 of the shield tunneling machine double-liquid grouting system of the present invention:
this embodiment is different from embodiment 1 in that in embodiment 1, the raw material storage silo 16 supplies raw material to the liquid a stirring station 21 via the screw conveyor 18. In this embodiment, the raw materials in the raw material storage bin are manually fed into the liquid a stirring station. In other embodiments, the feedstock may also be conveyed by a belt conveyor.
Embodiment 6 of the shield tunneling machine double-liquid grouting system of the present invention:
the present embodiment is different from embodiment 1 in that in embodiment 1, the liquid outlet of the liquid a stirring station 21 is provided with a filter. In this embodiment, the filter is disposed at the feed inlet of the liquid a mixing station.
The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention, the scope of the present invention is defined by the appended claims, and all structural changes that can be made by using the contents of the description and the drawings of the present invention are intended to be embraced therein.
Claims (10)
1. The double-liquid grouting system of the shield machine is characterized by comprising a rear matched trailer connected to the rear part of a shield machine host, wherein the rear matched trailer is provided with a liquid A stirring station (21), a liquid B storage tank (11) and a raw material storage bin (16); the A liquid stirring station (21) is used for preparing the A liquid, and the A liquid stirring station (21) is connected with a water pipe (19) for injecting water into the A liquid stirring station (21) and an A liquid pipeline (39) for transporting the A liquid to the front part of the shield tunneling machine; the liquid B storage tank (11) is used for storing liquid B, and the liquid B storage tank (11) is connected with a liquid B pipeline (40) used for transporting the liquid B to the front part of the shield tunneling machine; the raw material storage bin (16) is used for supplying raw materials to the A liquid stirring station (21).
2. The double-fluid grouting system of a shield tunneling machine according to claim 1, characterized in that a fluid A storage tank (31) is connected in parallel to the fluid A pipeline (39).
3. The dual-fluid grouting system of a shield tunneling machine according to claim 2, characterized in that the A-fluid storage tank (31) is a stirring tank.
4. The shield tunneling machine double-fluid grouting system according to claim 2 or 3, characterized in that the A-fluid storage tank (31) is connected with the water pipe (19).
5. The shield tunneling machine double-fluid grouting system according to claim 1, 2 or 3, characterized in that at least two of the A-fluid stirring stations (21) are provided.
6. The dual-fluid grouting system of a shield tunneling machine according to claim 5, characterized in that all the A-fluid mixing stations (21) share the A-fluid pipeline (39).
7. The shield tunneling machine dual-fluid grouting system according to claim 1, 2 or 3, further comprising a screw conveyor (18), wherein the raw material storage bin (16) supplies raw material to the A-fluid stirring station (21) through the screw conveyor (18).
8. The shield tunneling machine dual-fluid grouting system according to claim 1, 2 or 3, characterized in that the B fluid storage tank (11) is connected with the water pipe (19).
9. The shield tunneling machine dual-liquid grouting system of claim 1, 2 or 3, characterized in that the liquid outlets of the A-liquid stirring station (21) and the B-liquid storage tank (11) are provided with filters.
10. The dual-fluid grouting system of a shield tunneling machine according to claim 1, 2 or 3, characterized in that a weighing module is arranged on the A-fluid stirring station (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111250078.5A CN113863958A (en) | 2021-10-26 | 2021-10-26 | Double-liquid grouting system of shield tunneling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111250078.5A CN113863958A (en) | 2021-10-26 | 2021-10-26 | Double-liquid grouting system of shield tunneling machine |
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| Publication Number | Publication Date |
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| CN113863958A true CN113863958A (en) | 2021-12-31 |
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| CN202111250078.5A Pending CN113863958A (en) | 2021-10-26 | 2021-10-26 | Double-liquid grouting system of shield tunneling machine |
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