CN212774331U - Tunnel corrugated steel plate reinforcing device - Google Patents
Tunnel corrugated steel plate reinforcing device Download PDFInfo
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- CN212774331U CN212774331U CN202021366830.3U CN202021366830U CN212774331U CN 212774331 U CN212774331 U CN 212774331U CN 202021366830 U CN202021366830 U CN 202021366830U CN 212774331 U CN212774331 U CN 212774331U
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- 239000003292 glue Substances 0.000 claims description 2
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- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
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Abstract
The utility model discloses a tunnel corrugated steel plate reinforcing device, which comprises a protective fixing frame and a corrugated steel plate; the tunnel is characterized in that the protective fixing frames are arranged in a plurality of lengths along the tunnel, corrugated steel plates are installed in channels formed between the two protective fixing frames, and two ends of the corrugated steel plates in the corrugated extension direction are fixed on the protective fixing frames. The tunnel corrugated steel plate reinforcing device of the utility model can pre-protect and reinforce the lining by setting the protective fixing frame, and solves the safety problems of dropping and the like which may occur in the lining before the corrugated steel plate construction is completed; secondly, after the protective fixing frame is installed, parallel construction can be carried out on a plurality of working faces, the problem that the traditional corrugated steel plate installation method needs serial construction is solved, the construction speed is increased by multiple times, the construction period is shortened, and the risk of tunnel lining accidents in the construction process is reduced; and thirdly, the safety of the lining is further enhanced and the capabilities of resisting water pressure and unbalanced pressure are improved by the protective fixing frame.
Description
Technical Field
The utility model relates to a tunnel deck plate reinforcing apparatus belongs to tunnel reinforcement construction technical field.
Background
China is a mountainous country, so the tunnel quantity is also very large. 14547 railway tunnels for Chinese railways to be put into operation in 2017, and the total length of the tunnels reaches 15326 kilometers. By the end of 2018, the total length of the Chinese highway tunnel 17738 is 17236 km. With the continuous increase of the operation time of the tunnel, the internal quality hidden danger of the tunnel lining gradually appears to cause the lining structure defect of the tunnel under the interaction of various external environment factors, and the structure defect of the tunnel directly causes the bearing capacity of the tunnel lining structure to be reduced, thereby causing the structural deformation, and the catastrophic consequences such as fracture, collapse and the like even occur to the tunnel lining, thereby endangering the operation safety.
The types of the tunnel structure defects mainly comprise lining thickness defects, concrete quality defects, lining back cavities or backfill incompactness, tunnel bottom defects, steel bar and steel frame defects and the like. Researches find that the defects of the tunnel structure directly cause the reduction of the bearing capacity of the tunnel lining structure, thereby causing the structural deformation, and the tunnel lining even has disastrous consequences such as fracture, collapse and the like, thereby endangering the operation safety.
A general method of handling tunnel structure defects includes: anchor rod reinforcement, fiber cloth reinforcement, anchor spraying net reinforcement, steel belt reinforcement, fiber plate reinforcement, steel plate reinforcement method, steel arch frame reinforcement method, corrugated steel plate sleeve lining reinforcement method and the like.
The corrugated steel plate lining reinforcing method is firstly used on roads or culverts, and is gradually applied to railway operation tunnel reinforcing in recent years, for example, the corrugated steel plate overlapping connection method in patent CN201510284182 "method for treating damaged surfaces of holes", and the corrugated steel plate flange connection method in patent CN207161120U "corrugated steel plate structure convenient for connection from inside", but the methods have more problems in practical application:
1. for the tunnel with serious defects and directly influencing the operation safety, a temporary steel arch is installed on site, but the existing corrugated steel plate sleeve lining reinforcing method needs to firstly remove the reinforcing steel arch and then install the corrugated steel plate, so that the safety risk of the lining falling again exists in the process, the risk exists before the corrugated steel plate is not grouted and is completely anchored, the safety problem of the tunnel lining during construction can not be solved for as long as one month or even several months.
2. Traditional buckled plate mounting method, before the complete construction is accomplished, is that the connection through the support of hunch foot and lining is accomplished fixedly, but the lining is because thickness is not enough or the fracture this moment, probably in the work progress because the change of train wind pressure, under the effect of buckled plate, accelerates the destruction of lining, causes the safety risk.
3. Because the construction time of an operating railway is short, the construction time per day is 60-120 minutes, the existing corrugated steel plate installation method is installed from two sides upwards, the whole ring forming work is completed by using the lap joint of the corrugated steel plate and the corrugated steel plate, and the construction speed is very slow. Due to the requirement of lapping precision between the ring rings, excessive lapping or non-lapping is avoided, so that a plurality of working faces cannot be constructed simultaneously. The construction period is long, the risk is big, and the cost is high.
4. In the existing installation method, the tunnel lining is installed from two sides to the vault in the circumferential direction, the tunnel lining is installed from one end to the other end in the longitudinal direction, each ring needs to be tightly connected, corrugated steel plates are standard plates prefabricated in a factory, the next ring needs to adapt to the installation of the previous ring, all errors are accumulated together, all errors are accumulated on the last ring and basically accumulated at the vault position, the installation position of the last ring does not meet requirements, the corrugated steel plates even completely invade the train operation space or the distance between the corrugated steel plates and a contact net is too small, and the train operation risk or the high-voltage electricity and corrugated plate electricity connection risk is caused. The technical problem which is difficult to overcome by the existing method is also solved, so that the application of the corrugated steel plate has great problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a tunnel deck plate reinforcing apparatus, it has solved at least one among the above-mentioned technical problem.
The utility model provides a technical problem adopt following technical scheme: a tunnel corrugated steel plate reinforcing device comprises a protective fixing frame and a corrugated steel plate;
the tunnel is characterized in that the protective fixing frames are arranged in a plurality of lengths along the tunnel, corrugated steel plates are installed in channels formed between the two protective fixing frames, and two ends of the corrugated steel plates in the corrugated extension direction are fixed on the protective fixing frames.
Optionally, the protection fixing frame is a T-shaped protection fixing frame, an H-shaped protection fixing frame, or a combination of the T-shaped protection fixing frame and the H-shaped protection fixing frame.
Optionally, the protection fixing frame is attached to the inner wall surface of the tunnel lining, the gap is less than or equal to 15cm, and the lower end of the protection fixing frame is fixed to the inner wall surface of the tunnel through an arch foot structure.
Optionally, the distance between the protective fixing frames is 50cm-300 cm; the protection fixing frames are arranged in parallel, and/or are arranged at equal intervals, and/or are arranged at positions with serious defects.
Optionally, the protective fixing frame is divided into a plurality of sections in the circumferential direction, and the sections are connected through flanges, connecting pieces or in an insertion manner.
Optionally, at least one reinforcing connecting rib is arranged on two adjacent protective fixing frame supports, and when the reinforcing connecting ribs are multiple, the reinforcing connecting ribs are arranged in parallel or in a crossed manner.
Optionally, the corrugated steel plate is fixed on the surface of the tunnel lining through nail-shaped bolts in cooperation with bar-planting glue, the corrugated plates are fixed through bolts, and rubber strips are adhered to the lap joint positions for sealing; the nail-shaped bolt is provided with a sleeve nut for fastening the corrugated steel plate.
Optionally, the T-shaped protective fixing frame includes a first supporting plate and a first rib plate fixed to the first supporting plate; the H-shaped protection fixing frame comprises two second supporting plates which are arranged in parallel and a second ribbed plate which is fixed between the two second supporting plates; the corrugated steel plate is fixed to the first rib plate, the second rib plate or the tunnel lining.
Optionally, when the corrugated steel plate is fixed to the first rib plate or the second rib plate, a flat plate portion is formed at one end of the corrugated steel plate, which is connected to the first rib plate and the second rib plate, and the flat plate portion is arranged in parallel to the first rib plate and/or the second rib plate;
the corrugated steel plate is fixed on the first ribbed plate and/or the second ribbed plate through screws; when the corrugated steel plate is fixed on the tunnel lining, a screw penetrates through the corrugated steel plate and the first supporting plate or penetrates through the corrugated steel plate and the second supporting plate, and the corrugated steel plate and the protective fixing frame are fixed on the tunnel lining together.
Optionally, after the corrugated steel plate is installed, the material of the sacrificial anode is connected to the arch springing structure.
The utility model discloses following beneficial effect has:
(1) the utility model discloses a tunnel deck plate reinforcing apparatus through the setting of protection mount, can strengthen the lining cutting before deck plate installation and in the work progress, forms the reinforced structure who accomplishes with deck plate after the construction is accomplished, promotes the whole atress ability of lining cutting, has solved the safety problem in the work progress;
(2) in the corrugated steel plate construction process, the stress of the lining is completely applied through the protective fixing frame, the stress of the damaged lining is not increased, and the disturbance and the load increase of the lining in the process are solved;
(3) construction can be simultaneously carried out on a plurality of working faces, and the construction speed is high; the problem that large-scale multi-operation-surface construction cannot be achieved is solved.
(4) The problem of installation accuracy of corrugated steel plates is solved, the accuracy of each corrugated plate depends on a protective fixing frame which is completely and independently installed and tested in advance, and the corrugated steel plates are not influenced mutually; the problem of easily invading limit in the current buckled plate installation technique is solved.
(5) Pressure grouting can be kept during grouting, integrity between grouting materials and corrugated plates and between grouting materials and linings is improved, and waterproof performance of the tunnel is improved;
(6) the electrostatic powder coating corrugated steel plate is environment-friendly, has good performance and good insulativity;
(7) the sacrificial anode protection can effectively avoid the corrosion of the corrugated steel plate and the steel arch structure, and the durability of the steel arch structure is improved.
Drawings
Fig. 1 is a schematic structural view of the installation position of the protective fixing frame of the present invention;
fig. 2-4 are schematic structural views of the tunnel corrugated steel plate reinforcing device of the present invention;
fig. 5 is a perspective view of the tunnel corrugated steel plate reinforcing device of the present invention;
fig. 6 is a schematic structural view of the H-shaped protective fixing frame and the T-shaped protective fixing frame of the present invention;
fig. 7 is a schematic structural view of the H-shaped protective fixing frame of the present invention;
fig. 8 is a schematic view of the connection structure between the protective fixing frame sections of the present invention;
fig. 9 is a schematic view of another connection structure between the protective fixing frame sections of the present invention;
the notation in the figures means: 1-tunnel lining; 2-a protective fixing frame; 21-a first support plate; 22-a first rib; 25-a second support plate; 26-a second rib; 3-corrugated steel plate; 31-a flat plate portion; 4-reinforcing connecting ribs; 5-a notch; 6-connecting piece; 7-U-shaped groove; 8-nail bolt, 81-set nut.
Detailed Description
The technical solution of the present invention will be further explained with reference to the following embodiments and accompanying drawings.
Example 1
The embodiment provides a tunnel corrugated steel plate reinforcing device, which comprises a protective fixing frame 2 and a corrugated steel plate 3;
when in use, the protective fixing frame 2 is attached to the inner wall surface of the tunnel lining 1, the gap between the protective fixing frame and the inner wall surface of the tunnel lining is less than or equal to 15cm, and the lower end of the protective fixing frame 2 is fixed on the inner wall surface of the tunnel through an arch foot structure.
Preferably, the protective fixing frame 2 is a T-shaped protective fixing frame, an H-shaped protective fixing frame, or a combination of the T-shaped protective fixing frame and the H-shaped protective fixing frame, and the T-shaped protective fixing frame or the H-shaped protective fixing frame is made of carbon steel Q235 or Q345, or other high-strength materials, such as high-strength aluminum alloy, carbon fiber materials, and the like.
Referring to fig. 1, the T-shaped or H-shaped protective fixing frame is attached to the surface of the tunnel lining 1 to form a semicircular distribution.
In the embodiment, a plurality of protective fixing frames 2 are arranged along the length direction of the tunnel, and the spacing distance is 50cm-300 cm; more preferably, the protective fixing frames 2 are arranged in parallel, and/or the protective fixing frames 2 are arranged at equal intervals, and/or the protective fixing frames 2 are arranged at positions with serious defects.
The protection fixing frames 2 are all T-shaped protection fixing frames, or all H-shaped protection fixing frames, or the T-shaped protection fixing frames and the H-shaped protection fixing frames are alternately arranged.
The protection mount 2 is divided into a plurality of sections in the circumferential direction, and the sections are connected by flanges, connectors or insertion type connections, so that the protection mount 2 can be conveniently transported to an installation site and assembled on the installation site.
Referring to fig. 8, two through holes are formed in the connecting member 6, and the adjacent end portions of two adjacent protective fixing frame sections are both provided with through holes, so that the connecting member 6 is fixed on the two adjacent protective fixing frame sections respectively through screws, thereby realizing connection between the two adjacent protective fixing frame sections.
Referring to fig. 9, a U-shaped groove 7 is formed on one of two adjacent protective fixing frame segments, and a portion of the other protective fixing frame segment is inserted into the U-shaped groove, thereby achieving connection between the two adjacent protective fixing frame segments.
More preferably, at least one reinforcing connecting rib 4 may be provided on two adjacent protective fixing frames 2, the material of the reinforcing connecting rib 4 is the same as that of the T-shaped protective fixing frame and the H-shaped protective fixing frame, and when there are a plurality of reinforcing connecting ribs 4, the plurality of reinforcing connecting ribs 4 may be arranged in parallel or in a cross manner; at this time, one end of the reinforcing connection rib 4 is connected to one of the protective fixing frames 2, and the other end is connected to the other protective fixing frame 2. Wherein, the reinforcing connecting rib 4 is a steel bar or a steel plate.
Install corrugated steel plate 3 between protection mount 2: the corrugated steel plate 3 is installed to a channel formed between the shield fixing frames 2, and both ends of the corrugated steel plate 3 in the corrugated extension direction are fixed to the shield fixing frames 2.
In the embodiment, the wave height of the corrugated steel plate 3 is 50-110mm (without plate thickness), the wave width is 50-300mm, the plate thickness is 3-10mm, the corrugated steel plate is cold-rolled, the plate material is Q235 or Q345, the surface of the corrugated steel plate 3 adopts a hot-dip galvanizing anticorrosion process, and the coating thickness is not less than 84 μm.
In this embodiment, the corrugated steel plates 3 are fixed by bolts, and the rubber strips are adhered to the overlapping positions for sealing.
In this embodiment, preferably, the protective fixing frame 2 and the corrugated steel plate 3 are surface-processed by using powder paint; the corrugated steel plate 3 contains a grouting corrugated steel plate, and a flange with a grouting hole is welded on the surface of the grouting corrugated steel plate.
In this embodiment, the T-shaped protective fixing frame includes a first supporting plate 21 and a first rib plate 22 fixed to the first supporting plate 21; the H-shaped protective fixing frame comprises two second supporting plates 25 which are arranged in parallel and a second ribbed plate 26 which is fixed between the two second supporting plates 25; the deck plate 3 is fixed to the first rib 22, the second rib 26, or to the tunnel lining 1.
Further, when the deck plate 3 is fixed to the first and second ribs 22, 26, a flat plate portion 31 is formed at an end of the deck plate 3 connected to the first and second ribs 22, 26, and the flat plate portion 31 is provided in parallel with the first and/or second ribs 22, 26.
When the deck plate 3 is fixed to the first rib 22 or the second rib 26, the fixing can be performed by screws; when the deck plate 3 is fixed to the tunnel lining 1, screws pass through the deck plate 3 and the first support plate 21 or the second support plate 25, and fix the deck plate 3 and the protective fixing frame 2 together on the tunnel lining 1.
Meanwhile, a notch 5 is formed in the first support plate or the second support plate, so that the corrugated steel plate 3 is conveyed through the notch. And when fixing the deck plate, for example will the deck plate is fixed on protection mount 2 and lining concrete, can locate through nail-shaped bolt and cover female realization fixed of cover on the nail-shaped bolt to prevent dropping of nut through nail-shaped bolt, made things convenient for workman's construction.
The utility model discloses a tunnel deck plate reinforcing apparatus through the setting of protection mount, can protect in advance and consolidate the lining cutting, solves the safety problems such as dropping that the lining cutting probably appears before the construction is accomplished, secondly protects the mount installation and accomplishes the back, can carry out parallel construction at a plurality of working faces, has solved the problem that traditional approach must serial construction, and construction speed is many times increased. And thirdly, through the fixing action of the protective fixing frame, high-pressure grouting can be maintained during cavity grouting, the problem of adhesion of grouting materials with the lining surface and the corrugated steel plate surface is solved, and the waterproof performance of the tunnel is improved. And finally, by adding a sacrificial anode measure, the corrosion problem and the durability problem of the corrugated steel plate and the connecting mechanism are solved.
The sequence of the above embodiments is only for convenience of description and does not represent the advantages and disadvantages of the embodiments.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (10)
1. A tunnel corrugated steel plate reinforcing device is characterized by comprising a protective fixing frame and a corrugated steel plate;
the tunnel is characterized in that the protective fixing frames are arranged in a plurality of lengths along the tunnel, corrugated steel plates are installed in channels formed between the two protective fixing frames, and two ends of the corrugated steel plates in the corrugated extension direction are fixed on the protective fixing frames.
2. The tunnel deck stiffener of claim 1, wherein the protective frame is a T-shaped protective frame, an H-shaped protective frame, or a combination of a T-shaped protective frame and an H-shaped protective frame.
3. The tunnel deck stiffener of claim 1, wherein the protective fixing frame is attached to an inner wall surface of a tunnel lining with a gap of 15cm or less, and a lower end of the protective fixing frame is fixed to the inner wall surface of the tunnel by a spring structure.
4. The tunnel deck stiffener of claim 1, wherein the protective mounts are spaced apart by a distance of 50cm to 300 cm; the protection fixing frames are arranged in parallel, and/or are arranged at equal intervals, and/or are arranged at positions with serious defects.
5. The tunnel deck stiffener of claim 1, wherein the protective frame is divided into a plurality of segments in a circumferential direction, and the segments are connected by flanges, connectors, or insertion-type connections.
6. The tunnel deck stiffener device according to claim 1, wherein at least one stiffening connection rib is provided between two adjacent protective fixing frame brackets, and when the number of the stiffening connection ribs is plural, the plural stiffening connection ribs are provided in parallel or in cross.
7. The tunnel corrugated steel plate reinforcing device according to claim 1, wherein the corrugated steel plate is fixed on the surface of a tunnel lining through nail-shaped bolts in cooperation with bar-planting glue, the corrugated plates are fixed through bolts, and rubber strips are adhered at the lap joint positions for sealing; the nail-shaped bolt is provided with a sleeve nut for fastening the corrugated steel plate.
8. The tunnel deck stiffener of claim 2, wherein the T-shaped protective fixture includes a first support plate and a first rib secured to the first support plate; the H-shaped protection fixing frame comprises two second supporting plates which are arranged in parallel and a second ribbed plate which is fixed between the two second supporting plates; the corrugated steel plate is fixed to the first rib plate, the second rib plate or the tunnel lining.
9. The tunnel deck reinforcement device according to claim 8, wherein when a deck is fixed to the first rib or the second rib, an end of the deck connected to the first rib and the second rib is formed with a flat plate portion arranged in parallel with the first rib and/or the second rib;
the corrugated steel plate is fixed on the first ribbed plate and/or the second ribbed plate through screws; when the corrugated steel plate is fixed on the tunnel lining, a screw penetrates through the corrugated steel plate and the first supporting plate or penetrates through the corrugated steel plate and the second supporting plate, and the corrugated steel plate and the protective fixing frame are fixed on the tunnel lining together.
10. The tunnel deck stiffener of claim 1, wherein the sacrificial anode material is attached to the soffit structure after the deck has been installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021366830.3U CN212774331U (en) | 2020-07-13 | 2020-07-13 | Tunnel corrugated steel plate reinforcing device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021366830.3U CN212774331U (en) | 2020-07-13 | 2020-07-13 | Tunnel corrugated steel plate reinforcing device |
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| CN212774331U true CN212774331U (en) | 2021-03-23 |
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| CN202021366830.3U Active CN212774331U (en) | 2020-07-13 | 2020-07-13 | Tunnel corrugated steel plate reinforcing device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113027471A (en) * | 2021-03-30 | 2021-06-25 | 中交一公局集团有限公司 | Collapsible loess stratum subway tunnel earth pressure balance shield construction method |
| CN113123259A (en) * | 2021-04-15 | 2021-07-16 | 中国瑞林工程技术股份有限公司 | Reinforcing structure for shallow-buried box culvert of road and construction method |
-
2020
- 2020-07-13 CN CN202021366830.3U patent/CN212774331U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113027471A (en) * | 2021-03-30 | 2021-06-25 | 中交一公局集团有限公司 | Collapsible loess stratum subway tunnel earth pressure balance shield construction method |
| CN113027471B (en) * | 2021-03-30 | 2021-11-30 | 中交一公局集团有限公司 | Collapsible loess stratum subway tunnel earth pressure balance shield construction method |
| CN113123259A (en) * | 2021-04-15 | 2021-07-16 | 中国瑞林工程技术股份有限公司 | Reinforcing structure for shallow-buried box culvert of road and construction method |
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Address after: 101599 room 106, No.1 building, No.4 building, No.3 courtyard, Qiangyun Road, economic development zone, Miyun District, Beijing Patentee after: Beijing Hongruijia Technology Co.,Ltd. Country or region after: China Address before: 101599 room 106, No.1 building, No.4 building, No.3 courtyard, Qiangyun Road, economic development zone, Miyun District, Beijing Patentee before: BEIJING HONGRUIJIA SCIENCE & TECHNOLOGY CO.,LTD. Country or region before: China |
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