CN209855814U - Tunnel lining steel pipe structure - Google Patents
Tunnel lining steel pipe structure Download PDFInfo
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- CN209855814U CN209855814U CN201920257685.6U CN201920257685U CN209855814U CN 209855814 U CN209855814 U CN 209855814U CN 201920257685 U CN201920257685 U CN 201920257685U CN 209855814 U CN209855814 U CN 209855814U
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- steel pipe
- round hole
- limiting ring
- lining steel
- hole
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Abstract
The utility model discloses a bushing steel pipe structure in tunnel relates to construction research field, connect including inside lining steel pipe and feed inlet, at least one round hole has been seted up on the inside lining steel pipe, each the outside welding of round hole has the spacing ring, each the symmetry is provided with a plurality of bolt holes on the spacing ring, the feed inlet connects and installs on the spacing ring through the bolt hole, still repairs the piece including a disc that is used for the round hole shutoff, through seting up the round hole on the inside lining steel pipe, welds the spacing ring on the round hole, connects and stop valve and concrete pump union coupling back through the feed inlet, implements the concrete warehousing and pours, accomplishes the back of pouring, and the bolt on the excision feed inlet connects, repairs the piece through the disc and with the round hole shutoff, the utility model provides a simple structure, the operation of being convenient for.
Description
Technical Field
The invention relates to the field of building construction research, in particular to a steel pipe structure for a tunnel lining.
Background
The backfill concrete of the outer side of the tunnel lining steel pipe is a structural form widely applied in tunnel lining. The construction method is that the pipe is arranged in the gap between the lining steel pipe and the tunnel, and the pumping concrete is put into a warehouse to backfill the gap between the lining steel pipe and the tunnel. The construction method is limited by the size of a gap between the lining steel pipe and the tunnel, and when the gap is too small, personnel cannot pass through the gap, the scheme cannot be implemented. Meanwhile, the scheme frequently alternates the processes of lining steel pipe installation and concrete backfill, and greatly influences the installation progress of the tunnel lining steel pipe and the whole construction period.
The lining steel pipe is provided with the hole, and the concrete pump pipe device is welded and fixed on the periphery of the hole, so that the problem of frequent alternation of the lining steel pipe and the concrete backfilling process is solved by the concrete warehousing mode, and the construction progress is accelerated. But because of the peripheral welded fastening pump delivery concrete pipe device of trompil, it is more serious to the damage of the inside anticorrosive coating of steel pipe of trompil periphery, and follow-up trompil department repair construction degree of difficulty is great.
How to solve the problem of tapping and pouring concrete on the lining steel pipe, avoiding frequent alternation of the lining steel pipe and the concrete backfilling process to accelerate the construction progress, protecting the inner side anticorrosive coating of the steel pipe to the maximum extent and facilitating the follow-up tapping repair, which needs to be innovated in the construction technology.
Disclosure of Invention
The invention aims to provide a steel pipe structure for a tunnel lining, which is simple in structure and convenient to operate.
The solution of the invention for solving the technical problem is as follows: the utility model provides a steel pipe structure in tunnel lining, includes inside lining steel pipe and feed inlet joint, at least one round hole has been seted up on the inside lining steel pipe, each the outside welding of round hole has the spacing ring, each the symmetry is provided with a plurality of bolt holes on the spacing ring, the feed inlet joint passes through the bolt hole and installs on the spacing ring, still including one be used for repairing the disc piece with the round hole shutoff.
As a further improvement of the technical scheme, the disc repairing block is a cone frustum, the outer diameter of the small end of the cone frustum is larger than the inner diameter of the limiting ring, the outer diameter of the large end of the cone frustum is smaller than or equal to the inner diameter of the round hole, and the height of the cone frustum is equal to or smaller than the thickness of the side wall of the lining steel pipe.
As a further improvement of the technical scheme, the outer diameter of the limiting ring is larger than the inner diameter of the round hole, the inner diameter of the limiting ring is smaller than the inner diameter of the round hole, and each bolt hole is communicated with the round hole.
As a further improvement of the technical scheme, the inner circle of the limiting ring and the round hole are concentric circles, and the outer circle of the limiting ring and the round hole are concentric circles.
As a further improvement of the above technical scheme, the disc repairing block is installed in the circular hole, a welding groove is formed between the inner wall of the circular hole and the outer wall of the disc repairing block, the welding groove is one of a single-side V-groove, a U-groove or an I-groove, and the large end face of the disc repairing block is in press contact with the end face of the limit ring.
The invention has the beneficial effects that: according to the invention, the circular hole is formed in the lining steel pipe, the limiting ring is welded on the circular hole, the concrete is placed in a bin and poured after the feeding port joint is connected with the stop valve and the concrete pump pipe, the bolt on the feeding port joint is cut off after pouring is finished, and the circular hole is plugged by the disc repairing block. The method of the invention is convenient for the installation of the concrete pouring pump pipe and the subsequent repair of the circular hole on the lining steel pipe.
Drawings
In order to more clearly illustrate the technical solution in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below. It is clear that the described figures are only some embodiments of the invention, not all embodiments, and that a person skilled in the art can also derive other designs and figures from them without inventive effort.
FIG. 1 is a schematic view of the structure of a stop collar and a lining steel pipe according to the present invention;
FIG. 2 is a cross-sectional view of the stop collar and the inner liner steel tube of the present invention;
FIG. 3 is a cross-sectional view of the feeder neck of the present invention as installed;
fig. 4 is a sectional view of the disc patch of the present invention when installed.
Detailed Description
The conception, the specific structure, and the technical effects produced by the present invention will be clearly and completely described below in conjunction with the embodiments and the accompanying drawings to fully understand the objects, the features, and the effects of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and those skilled in the art can obtain other embodiments without inventive effort based on the embodiments of the present invention, and all embodiments are within the protection scope of the present invention. In addition, all the coupling/connection relationships mentioned herein do not mean that the components are directly connected, but mean that a better coupling structure can be formed by adding or reducing coupling accessories according to specific implementation conditions.
Referring to fig. 1 to 4, the tunnel lining steel pipe structure comprises a lining steel pipe 1 and a feeding port joint 5, wherein at least one circular hole 2 is formed in the lining steel pipe 1, a limiting ring 3 is welded on the outer side of each circular hole 2, a plurality of bolt holes 4 are symmetrically formed in each limiting ring 3, the feeding port joint 5 is installed on the limiting ring 3 through the bolt holes 4, and the tunnel lining steel pipe structure further comprises a disc repairing block 6 for plugging the circular hole 23.
The round hole 2 is formed in the lining steel pipe 1, the limiting ring 3 is welded on the round hole 2, after the lining steel pipe is connected with the stop valve and the concrete pump pipe through the feeding port joint 5, concrete is placed in a bin and poured, after pouring is completed, the bolt on the feeding port joint 5 is cut off, and the round hole 2 is plugged through the disc repairing block 6.
The disc repairing block 6 is a truncated cone, the outer diameter of the small end of the truncated cone is larger than the inner diameter of the limiting ring 3, the outer diameter of the large end of the truncated cone is smaller than or equal to the inner diameter of the round hole 2, and the height of the truncated cone is equal to or smaller than the thickness of the side wall of the lining steel pipe. After the disc repairing block 6 is embedded into the circular hole 2, a welding groove is formed between the inner wall of the circular hole 2 and the outer wall of the disc repairing block 6, and the disc repairing block is fixed with the lining steel pipe in a welding mode.
The external diameter of spacing ring 3 is greater than the internal diameter of round hole 2, and the internal diameter of spacing ring 3 is less than the internal diameter of round hole 2, and each bolt hole 4 communicates with round hole 2. Namely, the bolt hole 4 is positioned between the inner ring wall of the limit ring 3 and the inner wall of the round hole 2. The diameter of an external tangent circle which is externally tangent to all the bolt holes 4 on the same limiting ring 3 is smaller than the inner diameter of the round hole 2.
The inner circle of the limiting ring 3 and the round hole 2 are concentric circles, and the outer circle of the limiting ring 3 and the round hole 2 are concentric circles, so that construction precision is guaranteed.
The disc repairing block 6 is arranged in the circular hole 2, a welding groove 7 is formed between the inner wall of the circular hole 2 and the outer wall of the disc repairing block 6, and the welding groove 7 is a single-side V-shaped groove, a U-shaped groove or an I-shaped groove. According to actual conditions, the inner wall of the round hole 2 and the outer side wall of the disc repairing block 6 are machined. The big end face of the disc repairing block 6 is pressed and contacted with the end face of the limiting ring.
A concrete warehousing method applying a steel pipe structure of a tunnel lining comprises the following steps,
1) a circular hole 2 is formed in the lining steel pipe 1; welding a limiting ring 3 with a bolt hole 4 at the outer side of the round hole 2;
2) installing the lining steel pipe 1 into a tunnel, and before pouring, connecting a flange at one end of a feeding port joint 5 on a limiting ring 3 through a bolt and a rubber mat;
3) the other end of the feeding port joint 5 is connected with a stop valve and a concrete pump pipe, concrete is poured into a bin for pouring, after the concrete pouring is finished, the stop valve is closed, and the concrete pump pipe is dismantled;
4) after concrete pouring is finished and the concrete reaches a certain age, cutting off the bolt on the feeding port joint 5, and cleaning impurities on the periphery of the circular hole 2 and the surface of the limiting ring 3;
5) embedding the disc repairing block 6 into the circular hole 2, and forming a welding groove 7 between the disc repairing block 6 and the inner wall of the circular hole 2;
6) and (5) welding and repairing the round hole 2 and performing anti-corrosion treatment.
Further, as a preferred embodiment, before the step 2), the stopper ring 3 and the portion of the lining steel pipe 1 where the circular hole 2 is provided are subjected to corrosion prevention treatment.
The following is a preferred embodiment of the concrete warehousing method of the present invention.
1. Rolling the steel pipe according to the design size of the lining steel pipe 1, and determining the positions and the number of the circular holes 2 on the lining steel pipe 1 according to the performance of concrete to be poured outside the lining steel pipe 1;
2. processing a limiting ring 3, and symmetrically arranging four bolt holes 4 on the central circle of the limiting ring 3;
3. a limiting ring 3 is welded on the outer side of the round hole 2, and the inner circle and the outer circle of the limiting ring 3 are concentric circles with the round hole 2;
4. carrying out anti-corrosion treatment on the steel pipe subjected to the working procedures according to design requirements;
5. a lining steel pipe 1 is arranged in the tunnel, and before concrete pouring outside the lining steel pipe 1, a flange at one end of a feeding port joint 5 is connected to a limiting ring 3 through a bolt and a rubber mat;
6. the other end of the feeding port joint 5 is connected with a stop valve and a concrete pump pipe, concrete is poured into a bin for pouring, after the concrete pouring is finished, the stop valve is closed, and the concrete pump pipe is dismantled;
7. after concrete pouring is finished and the concrete reaches a certain age, cutting off the bolt on the feeding port joint 5, and cleaning impurities on the periphery of the circular hole 2 and the surface of the limiting ring 3;
8. embedding the disc repairing block 6 into the circular hole 2, forming a welding groove between the disc repairing block 6 and the inner wall of the limit circular hole 2, wherein the groove of the welding groove faces the inner side of the lining steel pipe 1, and the large end face of the disc repairing block 6 is in press contact with the end face of the limit ring 3 so as to be convenient for welding and repairing;
9. and (4) welding and repairing the circular hole 2, and performing anti-corrosion treatment to finally finish pouring of concrete outside the lining steel pipe and installation of the lining steel pipe.
While the preferred embodiments of the present invention have been illustrated and described, it will be understood by those skilled in the art that the present invention is not limited to the details of the embodiments shown and described, but is capable of numerous equivalents and substitutions without departing from the spirit of the invention as set forth in the claims appended hereto.
Claims (5)
1. A tunnel lining steel pipe structure is characterized in that: the circular hole repairing device comprises a lining steel pipe and a feeding port connector, wherein at least one circular hole is formed in the lining steel pipe, a limiting ring is welded on the outer side of each circular hole, a plurality of bolt holes are symmetrically formed in each limiting ring, the feeding port connector is installed on the limiting ring through the bolt holes, and the circular hole repairing device further comprises a circular disc repairing block used for plugging the circular holes.
2. The tunnel-lined steel pipe structure of claim 1, wherein: the disc repairing block is a truncated cone, the outer diameter of the small end of the truncated cone is larger than the inner diameter of the limiting ring, the outer diameter of the large end of the truncated cone is smaller than or equal to the inner diameter of the round hole, and the height of the truncated cone is equal to or smaller than the thickness of the side wall of the lining steel pipe.
3. The tunnel-lined steel pipe structure of claim 1, wherein: the external diameter of the limiting ring is larger than the internal diameter of the round hole, the internal diameter of the limiting ring is smaller than the internal diameter of the round hole, and each bolt hole is communicated with the round hole.
4. The tunnel-lined steel pipe structure of claim 1, wherein: the inner circle of the limiting ring and the round hole are concentric circles, and the outer circle of the limiting ring and the round hole are concentric circles.
5. The tunnel-lined steel pipe structure of claim 1, wherein: the disc repairing block is arranged in the circular hole, a welding groove is formed between the inner wall of the circular hole and the outer wall of the disc repairing block, the welding groove is a single-side V-shaped groove, a U-shaped groove or an I-shaped groove, and the large-end face of the disc repairing block is in press contact with the end face of the limiting ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920257685.6U CN209855814U (en) | 2019-02-28 | 2019-02-28 | Tunnel lining steel pipe structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920257685.6U CN209855814U (en) | 2019-02-28 | 2019-02-28 | Tunnel lining steel pipe structure |
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| Publication Number | Publication Date |
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| CN209855814U true CN209855814U (en) | 2019-12-27 |
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| CN201920257685.6U Active CN209855814U (en) | 2019-02-28 | 2019-02-28 | Tunnel lining steel pipe structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109882208A (en) * | 2019-02-28 | 2019-06-14 | 广东水电二局股份有限公司 | A kind of tunnel lined steel pipe structure and the concrete warehousing method using the structure |
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2019
- 2019-02-28 CN CN201920257685.6U patent/CN209855814U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109882208A (en) * | 2019-02-28 | 2019-06-14 | 广东水电二局股份有限公司 | A kind of tunnel lined steel pipe structure and the concrete warehousing method using the structure |
| CN109882208B (en) * | 2019-02-28 | 2024-02-13 | 广东水电二局股份有限公司 | Tunnel lining steel pipe structure and concrete warehousing method applying same |
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