CN210599108U - Recoverable shield hole temporary sealing structure - Google Patents
Recoverable shield hole temporary sealing structure Download PDFInfo
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- CN210599108U CN210599108U CN201921102002.6U CN201921102002U CN210599108U CN 210599108 U CN210599108 U CN 210599108U CN 201921102002 U CN201921102002 U CN 201921102002U CN 210599108 U CN210599108 U CN 210599108U
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- shield
- recoverable
- cover plate
- sealing structure
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Abstract
The utility model relates to a recoverable shield constructs interim hole sealing structure in hole, have the structure roof in shield structure hole and be used for the shutoff including reserving the apron in shield structure hole, apron demountable installation in on the structure roof. The utility model provides a shield constructs interim hole sealing structure in hole through lapping demountable installation on the structure roof, can avoid cast in situ concrete to carry out the hole sealing and avoid long-term chisel to remove the concrete, construction convenience, labour saving and time saving, the apron can be retrieved and reuse, has avoided the waste of engineering material.
Description
Technical Field
The utility model belongs to the technical field of tunnel engineering, concretely relates to recoverable shield constructs interim hole sealing structure in hole.
Background
The shield method is a construction method commonly used in underground sections of urban subways, and shield hoisting holes are important components of the shield method and are generally reserved in a station structural slab for shield construction. And subway engineering often meets the condition of reserving a long-term shield hoisting hole in the current station engineering, and is used for long-term shield tunnel construction. The traditional method is to adopt a cast-in-place concrete structure to carry out hole sealing, backfill and cover soil, and carry out shield construction after chiseling off the cast-in-place concrete during long-term shield construction. This practice is time consuming, labor intensive and results in significant engineering waste.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides a recoverable shield constructs interim hole sealing structure of hole can solve prior art's partial defect at least.
The embodiment of the utility model provides a recoverable shield constructs interim hole sealing structure in hole relates to, have the structure roof in shield structure hole and be used for the shutoff including reserving shield structure hole the apron in shield structure hole, apron demountable installation in on the structure roof.
In one embodiment, a support wall is formed on the top plate of the structure, and the cover plate is detachably mounted on the support wall.
As an embodiment, a plurality of assembly bolts are reserved at the top of the supporting wall, a plurality of assembly holes are correspondingly formed in the cover plate, and the assembly bolts are correspondingly inserted into the assembly holes one by one and are locked by nuts.
In one embodiment, the support wall is a concrete wall and is integrally formed with the structural roof.
As an embodiment, the support wall is integrally cast or prefabricated with the structural roof.
As one embodiment, a sealing structure is arranged at the covering position between the cover plate and the structural top plate.
As one embodiment, the sealing structure includes an annular sealing gasket reserved on the structural top plate and clamped between the cover plate and the structural top plate.
As one embodiment, the sealing gasket comprises an ethylene propylene diene monomer base body and a water-swelling rubber layer arranged on the top of the ethylene propylene diene monomer base body.
As one embodiment, the recoverable shield hole temporary sealing structure further comprises a protective cover, and the protective cover is arranged on the structural top plate and encloses the cover plate.
As one embodiment, the cover plate is a prefabricated reinforced concrete cover plate.
The embodiment of the utility model provides a following beneficial effect has at least:
the utility model provides a shield constructs interim hole sealing structure in hole through lapping demountable installation on the structure roof, can avoid cast in situ concrete to carry out the hole sealing and avoid long-term chisel to remove the concrete, construction convenience, labour saving and time saving, the apron can be retrieved and reuse, has avoided the waste of engineering material.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings 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 the drawings without creative efforts.
Fig. 1 is a schematic plan view of a shield hole temporary sealing structure provided in an embodiment of the present invention;
FIG. 2 is a cross-sectional view taken along A-A or B-B of FIG. 1;
FIG. 3 is an enlarged schematic view of section I of FIG. 2;
fig. 4 is a schematic structural diagram of a gasket according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
As shown in fig. 1-3, the embodiment of the utility model provides a recoverable shield constructs interim hole sealing structure in hole, including reserving the structure roof 1 that constructs the hole and being used for the shutoff the apron 3 in the shield hole, apron 3 demountable installation in on the structure roof 1.
The structure top plate 1 is the same as the station structure top plate in the prior art, and the specific structure thereof is not described herein. The size and shape of the shield holes formed in the structural top plate 1 are determined according to specific engineering conditions, which are conventional in the art and will not be described in detail herein.
The cover plate 3 may be a metallic plate, such as a steel plate; preferably, the prefabricated reinforced concrete cover plate 3 is adopted, the structural strength, the corrosion resistance and the like are easy to guarantee, and the hoisting is easy. It will be appreciated that a hook 6 may be provided on top of the deck 3 to facilitate crane installation or removal for transport.
The shield structure hole sealing structure temporarily that this embodiment provided through with apron 3 demountable installation on structure roof 1, can avoid cast in situ concrete to carry out the hole sealing and avoid the long term to chisel out the concrete, construction convenience, labour saving and time saving, apron 3 can be retrieved and reuse, has avoided the waste of engineering material.
For the detachable connection mode of the cover plate 3 and the structure top plate 1, conventional detachable assembly structures such as bolt assembly, tongue-and-groove assembly and the like can be adopted. The cover plate 3 can be directly covered on the structural top plate 1, for example, bolts 4 are reserved on the structural top plate 1 to realize the detachable connection with the cover plate 3; in another preferred embodiment, as shown in fig. 2 and 3, a support wall 2 is formed on the structural ceiling 1, and the cover plate 3 is detachably mounted on the support wall 2.
The support wall 2 is preferably a concrete wall and is integrally formed with the structural roof 1, for example, integrally cast with the structural roof 1, or prefabricated integrally with the structural roof 1. By arranging the supporting wall 2, the cover plate 3 can be detachably assembled without changing the structure of the structural top plate 1; on the other hand, the supporting wall 2 can prevent water accumulated on the top of the structural roof 1 from flowing into the station space from the shield hole.
Accordingly, conventional detachable assembling structures such as bolt assembling, tongue-and-groove assembling and the like can be adopted between the cover plate 3 and the supporting wall 2. As a preferred structure, as shown in fig. 1 to fig. 3, a plurality of assembly bolts 4 are reserved at the top of the support wall 2, a plurality of assembly holes are correspondingly formed in the cover plate 3, and the assembly bolts 4 are correspondingly inserted into the assembly holes one by one and are locked by nuts.
Based on the above recyclable characteristic of the cover plate 3, in an optional embodiment, the cover plate 3 is applicable to blocking shield holes of different specifications, specifically: the cover plate 3 comprises a central plate and a plurality of annular plates, the size of each annular plate is sequentially increased, and the central plate and each annular plate are sequentially nested from inside to outside to form the cover plate 3 (for example, the shield hole is a square hole, the central plate is a square plate, and the annular plates are square annular plates); the bolt splicing structure comprises a central plate, a plurality of annular plates, a plurality of blind hole type threaded holes, a plurality of through hole type threaded holes and a plurality of small hole type threaded holes, wherein the innermost annular plate and the central plate and two adjacent annular plates are spliced through bolts, the side wall of the central plate is provided with the blind hole type threaded holes, the side wall of each annular plate is correspondingly provided with the through hole type threaded holes, the threaded holes in the annular plates are preferably stepped holes and comprise large hole diameter sections which are close to the outer ring side of the annular plates and used for accommodating bolt heads and small hole diameter sections which are close to the inner ring side of the annular plates and used for being in threaded connection with bolt screw sections, and. The innermost annular plate and the central plate can be spliced through bolts, the outer annular plate can be spliced through bolts which are long and can penetrate from the outermost annular plate to the central plate, or the two adjacent annular plates can be spliced through bolts (the number of threaded holes in each annular plate can be configured correspondingly). The size of the cover plate 3 can be adjusted by adjusting the number and the size of the annular plates, so that the shield hole cover plate is suitable for shield holes with different sizes.
In another embodiment, the cover plate 3 includes a central plate and a plurality of outer annular plates, the inner ring size of each outer annular plate is the same (all the same as the central plate size) and the outer ring size of each outer annular plate is different, and the splicing manner between the outer annular plates and the central plate can refer to the above-mentioned related contents, which are not described herein again. By adopting different outer annular plates, the size of the cover plate 3 can be adjusted, so that the shield hole cover plate is suitable for shield holes with different specifications.
In the above-mentioned embodiment in which the size of the cover plate 3 is adjustable, in order to ensure the waterproof performance of the cover plate 3, after the cover plate 3 is assembled, a waterproof layer, such as a waterproof film or a waterproof coating, may be disposed on the top of the cover plate 3.
Further optimize above-mentioned structure, apron 3 with the lid department of closing between the structure roof 1 is equipped with seal structure, guarantees this shield and constructs the waterproof performance of hole sealing structure temporarily, avoids moisture in the 1 upper earthing of structure roof to follow in the shield hole infiltration station space. As is easy to understand, for the structure that the cover plate 3 is directly covered on the structure top plate 1, the sealing structure is arranged at the joint of the two; for the structure that the cover plate 3 covers the support wall 2, the sealing structure is arranged at the joint of the cover plate 3 and the support wall 2.
As shown in fig. 3 and 4, the sealing structure includes an annular sealing gasket 7 which is reserved on the structural top plate 1 and is sandwiched between the cover plate 3 and the structural top plate 1. The gasket 7 may be made of a common sealing material; in this embodiment, preferably, as shown in fig. 4, the sealing gasket 7 includes an epdm base 71 and a water-swellable rubber layer 72 disposed on the top of the epdm base 71, the epdm base 71 is pre-embedded on the structure top plate 1 or the support wall 2, so as to ensure that no gap exists between the sealing gasket 7 and the lower component (the structure top plate 1/the support wall 2), and the water-swellable rubber layer 72 expands after absorbing water to eliminate a gap between the epdm base 71 and the cover plate 3 by squeezing, thereby effectively improving the sealing performance of the sealing gasket 7. In another embodiment, a groove for the gasket 7 is reserved on the bottom of the cover plate 3 to install the gasket 7, which will not be described in detail herein.
Further optimizing the structure, as shown in fig. 2, the shield hole temporary sealing structure further includes a shield 5, and the shield 5 is covered on the structure top plate 1 and encloses the cover plate 3. The shield 5 is used for meeting the stress requirement after earth covering and backfilling, well protecting the cover plate 3 and further improving the waterproof performance of the shield hole temporary sealing structure. The shield 5 is preferably a steel cover, and has high structural strength. The top of the shield 5 can be provided with a lifting hook 6 for lifting, mounting or dismounting and transporting.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a recoverable shield constructs interim hole sealing structure of hole which characterized in that: the shield structure comprises a structure top plate with a shield hole and a cover plate used for plugging the shield hole, wherein the cover plate is detachably mounted on the structure top plate.
2. The recoverable shield hole temporary sealing structure according to claim 1, wherein: and a support wall is formed on the structural top plate, and the cover plate is detachably mounted on the support wall.
3. The recoverable shield hole temporary sealing structure according to claim 2, wherein: a plurality of assembling bolts are reserved at the top of the supporting wall, a plurality of assembling holes are correspondingly formed in the cover plate, and the assembling bolts penetrate through the assembling holes in a one-to-one correspondence mode and are locked through nuts.
4. The recoverable shield hole temporary sealing structure according to claim 2, wherein: the support wall is a concrete wall and is integrally formed with the structural top plate.
5. The recoverable shield hole temporary sealing structure according to claim 4, wherein: the support wall and the structural top plate are integrally poured or integrally prefabricated.
6. The recoverable shield hole temporary sealing structure according to any one of claims 1 to 5, wherein: and a sealing structure is arranged at the covering position between the cover plate and the structural top plate.
7. The recoverable shield hole temporary sealing structure according to claim 6, wherein: the sealing structure comprises an annular sealing gasket which is reserved on the structure top plate and clamped between the cover plate and the structure top plate.
8. The recoverable shield hole temporary sealing structure according to claim 7, wherein: the sealing gasket comprises an ethylene propylene diene monomer matrix and a water-swelling rubber layer arranged on the top of the ethylene propylene diene monomer matrix.
9. The recoverable shield hole temporary sealing structure according to any one of claims 1 to 5, wherein: the structure comprises a structure top plate and a cover plate, wherein the structure top plate is arranged on the structure top plate, and the cover plate is enclosed in the structure top plate.
10. The recoverable shield hole temporary sealing structure according to claim 1, wherein: the cover plate is a prefabricated reinforced concrete cover plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921102002.6U CN210599108U (en) | 2019-07-15 | 2019-07-15 | Recoverable shield hole temporary sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921102002.6U CN210599108U (en) | 2019-07-15 | 2019-07-15 | Recoverable shield hole temporary sealing structure |
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| Publication Number | Publication Date |
|---|---|
| CN210599108U true CN210599108U (en) | 2020-05-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921102002.6U Active CN210599108U (en) | 2019-07-15 | 2019-07-15 | Recoverable shield hole temporary sealing structure |
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| CN (1) | CN210599108U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110259512A (en) * | 2019-07-15 | 2019-09-20 | 中铁第四勘察设计院集团有限公司 | The recyclable interim hole sealing structure in shield hole |
-
2019
- 2019-07-15 CN CN201921102002.6U patent/CN210599108U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110259512A (en) * | 2019-07-15 | 2019-09-20 | 中铁第四勘察设计院集团有限公司 | The recyclable interim hole sealing structure in shield hole |
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