CN214330644U - Novel shield constructs tail shield biliquid slip casting structure - Google Patents
Novel shield constructs tail shield biliquid slip casting structure Download PDFInfo
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- CN214330644U CN214330644U CN202120182073.2U CN202120182073U CN214330644U CN 214330644 U CN214330644 U CN 214330644U CN 202120182073 U CN202120182073 U CN 202120182073U CN 214330644 U CN214330644 U CN 214330644U
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Abstract
The utility model discloses a novel shield tail shield double-liquid grouting structure which is wholly a symmetrical structure and comprises a grouting block front plate and a grouting block rear plate, one end of the grouting block front plate is fixedly connected with a grouting block middle mounting block, one end of the grouting block middle mounting block is fixedly connected with a grouting block rear plate, the top of the grouting block middle mounting block and the top of the grouting block rear plate are fixedly connected with a liquid A channel, the top of the grouting block front plate is fixedly connected with a liquid B ball valve, one end of the liquid B ball valve is fixedly connected with a liquid B elbow joint a, one side surface of the grouting block middle mounting block is fixedly connected with a closing plate B through a bolt, the end of the liquid A channel close to the liquid B ball valve is fixedly connected with a closing plate a through a bolt, one side of the closing plate a is fixedly connected with a valve mechanism, the novel shield tail shield double-liquid grouting structure has simple and reasonable structure, the design is novel, the liquid A is separated from the liquid B, avoid carrying out the water washing, be difficult for blockking up the slip casting pipeline.
Description
Technical Field
The utility model relates to a novel shield constructs tail shield biliquid slip casting technical field, specifically is a novel shield constructs tail shield biliquid slip casting structure.
Background
In the underground tunneling process of the shield tunneling machine, as the excavation diameter of the cutter head is larger than the diameter of the lined duct piece, a gap is formed after the tail shield is extracted, the shield tunneling machine adopts a synchronous grouting mode to fill the gap of the tail shield in time, so that the surrounding stratum is supported, peripheral surrounding rocks of the tunnel are prevented from loosening and leaking water, and the ground surface settlement is controlled; the synchronous grouting method adopted at the present stage has two modes, one mode is single-liquid grouting, the other mode is double-liquid grouting, the single-liquid grouting grout is long in solidification time but low in price, the double-liquid grouting grout is short in solidification time and high in price, but double-liquid grouting is often adopted in bottom layers needing to be solidified in time, the existing double-liquid grouting structure is complex in form, or grouting pipelines are easy to solidify and block. Therefore, the improvement is made, and a novel shield tail shield double-liquid grouting structure is provided.
Disclosure of Invention
In order to solve the technical problem, the utility model provides a following technical scheme:
the utility model relates to a novel double-liquid grouting structure of a shield tail shield, which is integrally of a symmetrical structure and comprises a grouting block front plate and a grouting block rear plate, one end of the grouting block front plate is fixedly connected with a grouting block middle mounting block, one end of the grouting block middle mounting block is fixedly connected with a grouting block rear plate, the middle mounting block of the grouting block and the top of the rear plate of the grouting block are fixedly connected with a liquid A channel, a liquid B pipe is arranged in the liquid A channel, the radius of the liquid pipe B is smaller than that of the liquid passage A, the top of the front plate of the grouting block is fixedly connected with a liquid ball valve B, one end of the liquid B ball valve is fixedly connected with a liquid B elbow joint a, one side surface of the middle mounting block of the grouting block is fixedly connected with a sealing plate B through a bolt, the liquid passage A is close to one side end of the liquid ball valve B and is fixedly connected with a sealing plate a through a bolt, and one side of the sealing plate a is fixedly connected with a valve mechanism.
As a preferred technical scheme of the utility model, valve mechanism includes A liquid ball valve and butt joint, shrouding a is provided with the screw thread through-hole, shrouding a passes through screw thread fixedly connected with butt joint, butt joint one end fixedly connected with A liquid ball valve.
As an optimal technical scheme of the utility model, the slip casting piece mid-mounting piece one end fixedly connected with check valve is kept away from to B liquid pipe.
As a preferred technical scheme of the utility model, check valve one end fixedly connected with B liquid elbow fitting B is kept away from to B liquid pipe, B liquid elbow fitting B other end fixedly connected with B liquid elbow fitting an.
As an optimal technical scheme of the utility model, B liquid ball valve, B liquid elbow fitting an, A liquid ball valve, butt joint, check valve and B liquid elbow fitting B internal connection department all are provided with the sealing washer, the sealing washer is the tetrafluoroethylene sealing washer, and surface coating has the fibrous layer.
The utility model has the advantages that: the novel double-liquid grouting structure has the advantages of simple structure, convenient manufacture and low cost, and is not easy to block a grouting pipeline; the butt joint and the liquid A ball valve are arranged for injecting liquid A into the liquid A channel, so that the structure is simple and the operation is convenient; through the arrangement of the liquid A channel and the liquid B tube and the double-liquid grouting structure, the liquid A and the liquid B are separated and mixed outside the structure, and a grouting pipeline is not easy to block; the one-way valve is arranged, so that the liquid B can be prevented from flowing back into the liquid A channel; through being provided with the sealing washer, not only have good corrosion resistance and sealed effect, can also carry out good sealed to the sealed effect and the life of sealing washer have been improved greatly.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a top view of a novel tail shield double-fluid grouting structure of a shield machine of the present invention;
fig. 2 is a side view of the novel shield tail shield double-liquid grouting structure of the shield machine of the utility model.
In the figure: 1. grouting block front plate; 2. grouting a rear plate; 3. a mounting block is arranged in the middle of the grouting block; 4. a liquid A channel; 5. b, a liquid ball valve; 6. b, liquid elbow joint a; 7. a closing plate b; 8. a liquid A ball valve; 9. a butt joint; 10. a liquid pipe B; 11. a one-way valve; 12. and B, a liquid elbow joint B.
Detailed Description
In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.
As shown in the figure 1-2, the novel double-liquid grouting structure of the tail shield of the shield tunneling machine of the invention is a symmetrical structure, which comprises a grouting block front plate 1 and a grouting block rear plate 2, one end of the grouting block front plate 1 is fixedly connected with a grouting block middle mounting block 3, one end of the grouting block middle mounting block 3 is fixedly connected with the grouting block rear plate 2, the tops of the grouting block middle mounting block 3 and the grouting block rear plate 2 are fixedly connected with an A liquid channel 4, a B liquid pipe 10 is arranged in the A liquid channel 4, the radius of the B liquid pipe 10 is smaller than that of the A liquid channel 4, by arranging the A liquid channel and the B liquid pipe, the double-liquid grouting structure is not easy to block a grouting pipeline, the top of the grouting block front plate 1 is fixedly connected with a B liquid 5, one end of the B liquid ball valve 5 is fixedly connected with a B liquid elbow joint a6, one side surface of the grouting block middle mounting block 3 is fixedly connected with a closing plate B7 through a bolt, the end part of one side of the liquid A channel 4 close to the liquid B ball valve 5 is fixedly connected with a sealing plate a through a bolt, and one side of the sealing plate a is fixedly connected with a valve mechanism.
Wherein, valve mechanism includes A liquid ball valve 8 and butt joint 9, and shrouding a is provided with the screw thread through-hole, and shrouding a passes through screw thread fixedly connected with butt joint 9, and 9 one end fixedly connected with A liquid ball valve 8 of butt joint are through being provided with butt joint and A liquid ball valve for pour into A liquid and get into A liquid passageway, simple structure, convenient operation.
Wherein, B liquid pipe 10 keeps away from 3 one end fixedly connected with check valve 11 of slip casting piece mid-mounting piece, through being provided with the check valve, can prevent B liquid refluence, and stationary flow hole and mounting groove are favorable to promoting the stability of check valve fluid flow process and the reliability of reverse choked flow.
Wherein, one end of the liquid B pipe 10 far away from the one-way valve 11 is fixedly connected with a liquid B elbow joint B12, and the other end of the liquid B elbow joint B12 is fixedly connected with a liquid B elbow joint a 6.
Wherein, B liquid ball valve 5, B liquid elbow fitting a6, A liquid ball valve 8, butt joint 9, check valve 11 and B liquid elbow fitting B12 internal connection department all are provided with the sealing washer, and the sealing washer is the tetrafluoroethylene sealing washer, and surface coating has the fibrous layer, through being provided with the sealing washer, not only has good corrosion resistance and sealed effect, can also carry out good sealing to the sealed effect and the life of sealing washer have been improved greatly.
When in work, the liquid A channel 4 penetrates through the grouting block middle mounting block 3 and the grouting block rear plate 2, the left end part of the liquid A channel 4 is provided with a sealing plate a, then a butt joint 9 and a liquid A ball valve 8 are arranged, a liquid B pipe 10 is arranged in the liquid A channel 4, one end of the grouting block is connected with a B liquid elbow joint a6 and a B liquid elbow joint B12, the upper side of a grouting block middle mounting block 3 is provided with a notch communicated with a liquid A channel 4, a sealing plate B7 is mounted on the notch, the B liquid elbow joint a6 penetrates through the sealing plate B7, the other end of the B liquid elbow joint a6 is provided with a B liquid ball valve 5, the other end of the B liquid pipe 10 is provided with a one-way valve 11, at ordinary times, liquid A (cement mortar) is injected into the liquid A channel 4, when double-liquid grouting is needed, the B liquid ball valve 5 is opened, liquid B (such as water glass) is injected into the liquid B pipe 10, the liquid B and the liquid A are mixed outside the grouting block rear plate 2 and are rapidly solidified, and the liquid B is prevented from flowing backwards by the check valve 11; the novel structure is simple, the manufacture is convenient, and the price is low; the butt joint 9 and the liquid A ball valve 8 are arranged for injecting liquid A into the liquid A channel 4, so that the structure is simple and the operation is convenient; by arranging the liquid channel A4 and the liquid tube B10, the double-liquid grouting structure is not easy to block a grouting pipeline; the one-way valve 11 is arranged, so that the liquid B can be prevented from flowing backwards, and the flow stabilizing holes and the mounting grooves are favorable for improving the stability of the fluid flowing process of the one-way valve and the reliability of reverse flow resistance; through being provided with the sealing washer, not only have good corrosion resistance and sealed effect, can also carry out good sealed to the sealed effect and the life of sealing washer have been improved greatly.
Finally, it should be noted that: in the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. A novel shield tail shield double-liquid grouting structure is a symmetrical structure and comprises a grouting block front plate (1) and a grouting block rear plate (2) and is characterized in that one end of the grouting block front plate (1) is fixedly connected with a grouting block middle mounting block (3), one end of the grouting block middle mounting block (3) is fixedly connected with the grouting block rear plate (2), the top of the grouting block middle mounting block (3) and the top of the grouting block rear plate (2) are fixedly connected with an A liquid channel (4), a B liquid pipe (10) is arranged inside the A liquid channel (4), the radius of the B liquid pipe (10) is smaller than that of the A liquid channel (4), a B liquid ball valve (5) is fixedly connected to the top of the grouting block front plate (1), one end of the B liquid ball valve (5) is fixedly connected with a B liquid elbow joint a (6), and one side surface of the grouting block middle mounting block (3) is fixedly connected with a sealing plate B (7) through bolts, the liquid channel A (4) is close to the end part of one side of the liquid ball valve B (5) and is fixedly connected with a sealing plate a through a bolt, and one side of the sealing plate a is fixedly connected with a valve mechanism.
2. The novel shield tail shield double-liquid grouting structure of the shield machine according to claim 1, wherein the valve mechanism comprises a liquid A ball valve (8) and a butt joint (9), the sealing plate a is provided with a threaded through hole, the sealing plate a is fixedly connected with the butt joint (9) through threads, and one end of the butt joint (9) is fixedly connected with the liquid A ball valve (8).
3. The novel double-liquid grouting structure of the tail shield of the shield tunneling machine according to claim 2, wherein one end of the B liquid pipe (10) far away from the middle mounting block (3) of the grouting block is fixedly connected with a one-way valve (11).
4. The novel double-liquid grouting structure for the tail shield of the shield tunneling machine according to claim 3, wherein one end of the liquid pipe B (10), which is far away from the check valve (11), is fixedly connected with a liquid elbow joint B (12), and the other end of the liquid elbow joint B (12) is fixedly connected with a liquid elbow joint a (6).
5. The novel double-liquid grouting structure for the tail shield of the shield tunneling machine according to claim 4, wherein sealing rings are arranged at the internal joints of the liquid B ball valve (5), the liquid B elbow joint a (6), the liquid A ball valve (8), the butt joint (9), the check valve (11) and the liquid B elbow joint B (12), are tetrafluoroethylene sealing rings, and the surfaces of the sealing rings are wrapped by fiber layers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120182073.2U CN214330644U (en) | 2021-01-22 | 2021-01-22 | Novel shield constructs tail shield biliquid slip casting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120182073.2U CN214330644U (en) | 2021-01-22 | 2021-01-22 | Novel shield constructs tail shield biliquid slip casting structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214330644U true CN214330644U (en) | 2021-10-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120182073.2U Active CN214330644U (en) | 2021-01-22 | 2021-01-22 | Novel shield constructs tail shield biliquid slip casting structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214330644U (en) |
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2021
- 2021-01-22 CN CN202120182073.2U patent/CN214330644U/en active Active
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