CN210317332U - Single-liquid-slurry-to-double-liquid-slurry grouting system of shield machine - Google Patents
Single-liquid-slurry-to-double-liquid-slurry grouting system of shield machine Download PDFInfo
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- CN210317332U CN210317332U CN201920361131.0U CN201920361131U CN210317332U CN 210317332 U CN210317332 U CN 210317332U CN 201920361131 U CN201920361131 U CN 201920361131U CN 210317332 U CN210317332 U CN 210317332U
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- storage tank
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- mixer
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- 239000002002 slurry Substances 0.000 title claims abstract description 24
- 239000007788 liquid Substances 0.000 claims abstract description 227
- 238000003860 storage Methods 0.000 claims abstract description 65
- 238000002156 mixing Methods 0.000 claims abstract description 34
- 238000007569 slipcasting Methods 0.000 claims abstract description 22
- 239000011440 grout Substances 0.000 claims abstract description 11
- 239000004677 Nylon Substances 0.000 claims description 16
- 229920001778 nylon Polymers 0.000 claims description 16
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 14
- 235000019353 potassium silicate Nutrition 0.000 claims description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 13
- 239000012530 fluid Substances 0.000 claims description 9
- 230000005641 tunneling Effects 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 4
- 239000002994 raw material Substances 0.000 claims 1
- 230000006978 adaptation Effects 0.000 abstract description 4
- 238000002347 injection Methods 0.000 abstract description 4
- 239000007924 injection Substances 0.000 abstract description 4
- 238000010276 construction Methods 0.000 abstract description 3
- 238000005086 pumping Methods 0.000 abstract 2
- 229910000278 bentonite Inorganic materials 0.000 description 4
- 239000000440 bentonite Substances 0.000 description 4
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 4
- 230000001360 synchronised effect Effects 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 102000002322 Egg Proteins Human genes 0.000 description 1
- 108010000912 Egg Proteins Proteins 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000004681 ovum Anatomy 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
Images
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- Lining And Supports For Tunnels (AREA)
Abstract
The utility model relates to a subway construction field technical field discloses a single liquid thick liquid of shield constructs quick-witted changes two liquid thick liquid slip casting systems. Including A liquid mixing station, A liquid storage jar, B liquid blending tank, B liquid storage jar, and the tee bend blender, the other end of tee bend blender is used for receiving the B liquid that B liquid storage jar was saved, the exit end of tee bend blender links to each other with the slip casting structure that is used for the biliquid injection section of jurisdiction outer wall after will mixing, the shield tail grout outlet department is located to the tee bend blender, A liquid storage jar is through first one-way constant delivery pump with A liquid pumping to the tee bend blender, B liquid storage jar is through the one-way constant delivery pump of second with B liquid pumping to the tee bend blender, link to each other through B liquid conveying pipeline between B liquid storage jar and the tee bend blender, be equipped with the check valve on the B liquid conveying pipeline. Through the arrangement of the liquid A storage tank, the liquid B storage tank and the three-way mixer, the shield machine has the advantages that double-liquid slurry can be synchronously injected, the work efficiency is improved, and the stratum adaptation of the shield machine is increased.
Description
Technical Field
The utility model relates to a subway construction field technical field, specifically speaking relates to shield constructs quick-witted single liquid thick liquid and changes two liquid thick liquid slip casting systems.
Background
In the shield construction process, grouting is to fill gaps which exist around the segment after the segment is separated from the shield tail of the shield machine, and after the segment is separated from the shield tail of the shield machine, fillers on the periphery of the segment are not densely filled or the strength of the fillers is not enough to support the upper soil body, so that the soil body is loosened and sunk to cause segment dislocation or water leakage and ground settlement, thereby influencing the tunnel quality. In order to reduce and prevent settlement, in the shield tunneling process, sufficient slurry material is synchronously injected into the back of the lining segment which is separated from the shield tail as soon as possible to fill the annular building gap of the shield tail.
The shield machine that is using at present in China mostly is single liquid thick liquid synchronous grouting system, only is a small amount for two liquid thick liquid systems, because two liquid thick liquid initial set time is short, impervious ability reinforce, can reduce section of jurisdiction dislocation platform and come-up, reduce the shield machine in the risk of tunnelling in-process percolating water and earth's surface subsidence, improve the work efficiency to be suitable for more in complicated stratum such as rich water sand ovum, the shield machine once only acquisition cost is too big simultaneously, there is the cost height of shield machine, the less defect of adaptation stratum scope.
SUMMERY OF THE UTILITY MODEL
The applicable stratum scope to the single liquid thick liquid slip casting system that exists among the prior art is less, the shield constructs quick-witted defect with high acquisition cost, the utility model provides a shield constructs quick-witted single liquid thick liquid and changes two liquid thick liquid slip casting systems. The shield machine has the advantages that the shield machine can fill the gaps around the duct pieces separated from the shield tail by synchronously injecting double-fluid slurry, the work efficiency is improved, and the stratum adaptation of the shield machine is increased.
In order to solve the above technical problem, the present invention solves the above technical problems.
The system for changing single-liquid slurry into double-liquid slurry for grouting of the shield machine comprises
The liquid A mixing station is used for manufacturing liquid A;
the liquid A storage tank is used for receiving and storing the liquid A produced at the liquid A mixing station through a liquid A pipeline, and the liquid A storage tank is arranged on the shield trolley;
the liquid B mixing tank is used for manufacturing liquid B and is arranged on the shield trolley;
the liquid B storage tank is used for receiving and storing the liquid B manufactured by the liquid B mixing tank and is arranged on the shield trolley; and
one end of the three-way mixer is used for receiving the liquid A stored in the liquid A storage tank, the other end of the three-way mixer is used for receiving the liquid B stored in the liquid B storage tank, the outlet end of the three-way mixer is connected with a grouting structure used for injecting the mixed double liquid into the outer wall of the pipe piece, and the three-way mixer is arranged at a slurry outlet at the tail of the shield;
a liquid storage jar is through first one-way constant delivery pump with A liquid pump send to the tee bend blender, B liquid storage jar is through the one-way constant delivery pump of second with B liquid pump send to the tee bend blender, links to each other through B liquid conveying pipeline between B liquid storage jar and the tee bend blender, is equipped with the check valve on the B liquid conveying pipeline.
Through the arrangement of the liquid A mixing station and the liquid A storage tank, the liquid A mixing station can continuously mix and produce liquid A and the liquid A is conveyed and stored on the liquid A storage tank through the liquid A pipeline; through the arrangement of the additionally arranged liquid B mixing tank and the liquid B storage tank, liquid B is continuously generated on the liquid B mixing tank and is conveyed and stored in the liquid B storage tank through the storage battery car on the shield trolley; through the arrangement of the three-way mixer, the liquid A in the liquid A storage tank and the liquid B in the liquid B storage tank are mixed in the three-way mixer to generate double liquids, the generated double liquids are guided into the grouting structure, and the double liquids are injected into the outer wall of the duct piece by the grouting structure, so that the synchronous injection of the double liquids by the shield machine is realized; the one-way valve is arranged to prevent the liquid B from flowing back on the liquid B conveying pipeline, so that the liquid B flowing into the three-way mixer is reduced, and the liquid B flowing into the three-way mixer is controlled; and the first one-way constant delivery pump and the second one-way constant delivery pump are arranged, so that the liquid A in the liquid A storage tank and the liquid B in the liquid B storage tank are conveyed into the three-way mixer. The utility model discloses an above technical scheme makes the shield constructs the section of jurisdiction clearance all around that the machine can the synchronous injection biliquid thick liquid fill break away from the shield tail, improves the work efficiency, and the adaptation stratum of increase shield constructs the machine also makes the slip casting system can carry out secondary slip casting simultaneously, provides new thinking to the transformation of current shield structure machine equipment and follow-up shield structure machine design.
Preferably, the liquid A storage tank is connected with the three-way mixer through a liquid A conveying pipeline, the liquid A conveying pipeline is connected with a three-way, the first end of the three-way is connected with the three-way mixer, the second end of the three-way is connected with the output end of the first one-way constant delivery pump, and the third end of the three-way is communicated with the liquid A storage tank.
The utility model discloses in, through the setting of tee bend for after finishing the slip casting, close the one end that tee bend and tee bend blender link to each other, to pouring into the bentonite in the A liquid holding vessel, carry the bentonite to wash A liquid conveying line through first one-way constant delivery pump, thereby prevent that A liquid conveying line from blockking up, thereby make slip casting system's slip casting effect better.
Preferably, the grouting structure comprises a nylon rubber plate arranged at the grout outlet, and the middle part of the nylon rubber plate is provided with a grout outlet with an X-shaped longitudinal section.
The utility model discloses in, through the setting in nylon rubber board and play thick liquid hole for the thick liquid extrusion nylon rubber board of nylon rubber board makes out thick liquid hole grow when the slip casting, when stopping slip casting after accomplishing the slip casting, nylon rubber board deformation resumes, prevents the thick liquid backward flow and blocks up the slip casting passageway.
Preferably, the second unidirectional fixed displacement pump is a screw pump.
In the utility model, the first one-way constant delivery pump can make full use of the existing grouting pump on the shield trolley to realize that the A liquid in the A liquid storage tank enters the three-way mixer, thereby reducing the acquisition cost; the second one-way constant delivery pump is a screw pump, so that the liquid B in the liquid B storage tank can enter the three-way mixer, and meanwhile, the three-way mixer works stably and has small one-time investment.
Preferably, the liquid B comprises water and water glass, and the water glass are injected into the liquid B mixing tank through a pipeline.
The utility model discloses in, through the setting of water, water glass and pipeline for make things convenient for water and water glass to get into and mix in the B liquid blending tank and produce water glass solution.
Drawings
Fig. 1 is a schematic grouting diagram of a single-liquid-slurry-to-double-liquid-slurry grouting system of a shield tunneling machine in embodiment 1;
FIG. 2 is a schematic view of a slurry path A in example 1;
FIG. 3 is a schematic view of a slurry path B in example 1;
fig. 4 is a schematic view of a grouting mechanism in embodiment 1;
FIG. 5 is a schematic view of a nylon rubber sheet in example 1;
the names of the parts indicated by the numerical references in the drawings are as follows: 11. a liquid A mixing station; 12. a liquid A storage tank; 13. a three-way mixer; 14. a tee joint; 15. a liquid pipeline A; 16. a first unidirectional fixed displacement pump; 17. a liquid A conveying pipeline; 21. a liquid B mixing tank; 22. a liquid B storage tank; 23. a liquid B conveying pipeline; 24. a one-way valve; 25. water; 26. water glass; 27. a second unidirectional fixed displacement pump; 31. a grout stopping plate; 32. the inner wall of the shield tail; 33. a pulp outlet; 34. a nylon rubber plate; 41. and (6) discharging slurry pores.
Detailed Description
For a further understanding of the present invention, reference will be made to the following detailed description taken in conjunction with the accompanying drawings and examples. It is to be understood that the examples are illustrative of the invention only and are not limiting.
Example 1
As shown in fig. 1-5, the present embodiment provides a single-fluid-slurry-to-double-fluid-slurry grouting system for a shield machine, which includes
The A liquid mixing station 11, wherein the A liquid mixing station 11 is used for manufacturing A liquid;
the liquid A storage tank 12 is used for receiving and storing the liquid A produced at the liquid A mixing station 11 through a liquid A pipeline 15, and the liquid A storage tank 12 is arranged on the shield trolley;
the liquid B mixing tank 21 is used for manufacturing liquid B, and the liquid B mixing tank 21 is arranged on the shield trolley;
the liquid B storage tank 22 is used for receiving and storing the liquid B manufactured by the liquid B mixing tank 21, and the liquid B storage tank 22 is arranged on the shield trolley; and
one end of the three-way mixer 13 is used for receiving the liquid A stored in the liquid A storage tank 12, the other end of the three-way mixer 13 is used for receiving the liquid B stored in the liquid B storage tank 22, the outlet end of the three-way mixer 13 is connected with a grouting structure used for injecting the mixed double liquid into the outer wall of the pipe piece, and the three-way mixer 13 is arranged at a slurry outlet of the shield tail;
the liquid A storage tank 12 pumps the liquid A to the three-way mixer 13 through the first one-way quantitative pump 16, the liquid B storage tank 22 pumps the liquid B to the three-way mixer 13 through the second one-way quantitative pump 27, the liquid B storage tank 22 is connected with the three-way mixer 13 through the liquid B conveying pipeline 23, and the liquid B conveying pipeline 23 is provided with a one-way valve 24.
Through the arrangement of the liquid A mixing station 11 and the liquid A storage tank 12, the liquid A mixing station 11 can continuously mix and produce liquid A and the liquid A is conveyed and stored on the liquid A storage tank 12 through the liquid A pipeline 15; through the arrangement of the additionally arranged B liquid mixing tank 21 and the B liquid storage tank 22, the B liquid is continuously generated on the B liquid mixing tank 21 and is conveyed and stored in the B liquid storage tank 22 through the storage battery car on the shield trolley; through the arrangement of the three-way mixer 13, the liquid A in the liquid A storage tank 12 and the liquid B in the liquid B storage tank 22 are mixed in the three-way mixer 13 to generate double liquid, the generated double liquid is led into a grouting structure, and the double liquid is injected into the outer wall of the pipe piece by the grouting structure, so that the synchronous injection of the double liquid by the shield machine is realized; the check valve 24 is arranged to prevent the liquid B from flowing back on the liquid B conveying pipeline 23, so that the liquid B flowing into the three-way mixer 13 is reduced, and the control of the liquid B flowing into the three-way mixer 13 is realized; the first one-way dosing pump 16 and the second one-way dosing pump 27 are arranged so that the liquid a in the liquid a storage tank 12 and the liquid B in the liquid B storage tank 22 are delivered into the three-way mixer 13. According to the technical scheme, the shield machine can synchronously inject double-liquid slurry to fill the gaps around the duct pieces separated from the shield tail, the work efficiency is improved, the adaptive stratum of the shield machine is increased, the grouting system can perform secondary grouting, and a new idea is provided for the transformation of the existing shield machine and the design of a follow-up shield machine.
In this embodiment, the liquid a storage tank 12 is connected to the three-way mixer 13 through a liquid a delivery line 17, the liquid a delivery line 17 is connected to a three-way valve 14, one end of the three-way valve 14 is connected to the three-way mixer 13, and the other two ends of the three-way valve are both connected to the liquid a storage tank 12.
Through the setting of tee bend 14 in this embodiment for after finishing the slip casting, close the one end that tee bend 14 and tee bend blender 13 link to each other, to injecting the bentonite in A liquid storage jar 12, carry the bentonite through 16 pumps of first one-way ration and wash A liquid conveying pipeline 17, thereby prevent that A liquid conveying pipeline 17 from blockking up, thereby make slip casting system's slip casting effect better.
In this embodiment, the grouting structure includes shield tail inner wall 32 and the grout stopping plate 31 of shield platform truck, is equipped with grout outlet 33 between shield tail inner wall 32 and the grout stopping plate 31, and grout outlet 33 department is fixed and is equipped with nylon rubber sheet 34, and the middle part of nylon rubber sheet 34 is equipped with the grout outlet hole 42 that longitudinal section is the X type.
Through the setting of nylon rubber slab 34 and play thick liquid hole 42 in this embodiment for nylon rubber slab 34 thick liquid extrusion nylon rubber slab 34 makes play thick liquid hole 42 grow when the slip casting, when stopping slip casting after accomplishing the slip casting, nylon rubber slab 34 deformation resumes, prevents that the thick liquid backward flow from blockking up the slip casting passageway.
In this embodiment, the first unidirectional constant delivery pump 16 is an original grouting pump of the shield tunneling machine, and the second unidirectional constant delivery pump 27 is an additional screw pump.
The first one-way constant delivery pump 16 in the embodiment is a grouting pump, and the existing grouting pump on the shield trolley is fully utilized to realize that the A liquid in the A liquid storage tank 12 enters the three-way mixer 13, so that the acquisition cost is reduced; the second unidirectional quantitative 27 pump is a screw pump, so that the liquid B in the liquid B storage tank 22 can enter the three-way mixer 13, and meanwhile, the operation is stable, and the one-time investment is small.
In this embodiment, the liquid B includes water 25 and water glass 26, and the water 25 and the water glass 26 are injected into the liquid B mixing tank 21 through a pipeline.
Through the arrangement of the water 25, the water glass 26 and the pipeline in the embodiment, the water 25 and the water glass 26 are conveniently mixed in the liquid B mixing tank 21 to generate a water glass solution.
In short, the above description is only a preferred embodiment of the present invention, and all the equivalent changes and modifications made in accordance with the claims of the present invention should be covered by the scope of the present invention.
Claims (5)
1. Single liquid thick liquid of shield constructs quick-witted changes two liquid thick liquid slip casting systems, its characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,
a liquid A mixing station (11), wherein the liquid A mixing station (11) is used for manufacturing liquid A;
the liquid A storage tank (12) is used for receiving and storing the liquid A produced at the liquid A mixing station (11) through a liquid A pipeline (15), and the liquid A storage tank (12) is arranged on the shield trolley;
the liquid B mixing tank (21) is used for producing the liquid B, and the liquid B mixing tank (21) is arranged on the shield trolley;
the liquid B storage tank (22) is used for receiving and storing the liquid B manufactured by the liquid B mixing tank (21), and the liquid B storage tank (22) is arranged on the shield trolley; and
one end of the three-way mixer (13) is used for receiving the liquid A stored in the liquid A storage tank (12), the other end of the three-way mixer (13) is used for receiving the liquid B stored in the liquid B storage tank (22), the outlet end of the three-way mixer (13) is connected with a grouting structure used for injecting the mixed double liquid into the outer wall of the pipe piece, and the three-way mixer (13) is arranged at a slurry outlet at the tail of the shield;
a liquid storage tank (12) pumps A liquid to a three-way mixer (13) through a first one-way constant delivery pump (16), a B liquid storage tank (22) pumps B liquid to the three-way mixer (13) through a second one-way constant delivery pump (27), the B liquid storage tank (22) is connected with the three-way mixer (13) through a B liquid conveying pipeline (23), and a one-way valve (24) is arranged on the B liquid conveying pipeline (23).
2. The system for changing single-fluid slurry into double-fluid slurry grouting of the shield tunneling machine according to claim 1, characterized in that: a liquid storage tank (12) is connected with a tee-joint mixer (13) through an A liquid conveying pipeline (17), the tee-joint (14) is connected to the A liquid conveying pipeline (17), the first end of the tee-joint (14) is connected with the tee-joint mixer (13), the second end of the tee-joint (14) is connected with the output end of a first one-way constant delivery pump (16), and the third end of the tee-joint (14) is communicated with the A liquid storage tank (12).
3. The system for changing single-fluid slurry into double-fluid slurry grouting of the shield tunneling machine according to claim 1, characterized in that: the grouting structure comprises a nylon rubber plate (34) arranged at a grout outlet (33), and a grout outlet hole (42) with an X-shaped longitudinal section is formed in the middle of the nylon rubber plate (34).
4. The system for changing single-fluid slurry into double-fluid slurry grouting of the shield tunneling machine according to claim 1, characterized in that: the second unidirectional constant delivery pump (27) adopts a screw pump.
5. The system for changing single-fluid slurry into double-fluid slurry grouting of the shield tunneling machine according to claim 1, characterized in that: the liquid B comprises water (25) and water glass (26), and the water (25) and the water glass (26) are injected into the liquid B mixing tank (21) through pipelines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920361131.0U CN210317332U (en) | 2019-03-21 | 2019-03-21 | Single-liquid-slurry-to-double-liquid-slurry grouting system of shield machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920361131.0U CN210317332U (en) | 2019-03-21 | 2019-03-21 | Single-liquid-slurry-to-double-liquid-slurry grouting system of shield machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210317332U true CN210317332U (en) | 2020-04-14 |
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ID=70122826
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920361131.0U Expired - Fee Related CN210317332U (en) | 2019-03-21 | 2019-03-21 | Single-liquid-slurry-to-double-liquid-slurry grouting system of shield machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210317332U (en) |
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2019
- 2019-03-21 CN CN201920361131.0U patent/CN210317332U/en not_active Expired - Fee Related
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Granted publication date: 20200414 |