CN217681785U - A repair structure for tunnel construction and disease renovation - Google Patents
A repair structure for tunnel construction and disease renovation Download PDFInfo
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- CN217681785U CN217681785U CN202221903256.XU CN202221903256U CN217681785U CN 217681785 U CN217681785 U CN 217681785U CN 202221903256 U CN202221903256 U CN 202221903256U CN 217681785 U CN217681785 U CN 217681785U
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- 238000010276 construction Methods 0.000 title claims abstract description 22
- 201000010099 disease Diseases 0.000 title claims abstract description 15
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 title claims abstract description 15
- 230000008439 repair process Effects 0.000 title claims abstract description 11
- 238000009418 renovation Methods 0.000 title description 2
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 112
- 239000000463 material Substances 0.000 claims abstract description 20
- 238000005728 strengthening Methods 0.000 claims abstract description 15
- 238000005067 remediation Methods 0.000 claims abstract description 9
- 238000005520 cutting process Methods 0.000 claims abstract description 6
- 239000000945 filler Substances 0.000 claims abstract 4
- 238000007569 slipcasting Methods 0.000 claims abstract 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 42
- 229910052742 iron Inorganic materials 0.000 claims description 21
- 229910000831 Steel Inorganic materials 0.000 claims description 13
- 239000010959 steel Substances 0.000 claims description 13
- 230000002787 reinforcement Effects 0.000 claims description 8
- 239000000565 sealant Substances 0.000 claims description 7
- 238000012423 maintenance Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 5
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 238000009415 formwork Methods 0.000 description 9
- 238000004873 anchoring Methods 0.000 description 6
- 238000009434 installation Methods 0.000 description 6
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 101100334009 Caenorhabditis elegans rib-2 gene Proteins 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 239000011440 grout Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000003733 fiber-reinforced composite Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000007788 roughening Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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- Lining And Supports For Tunnels (AREA)
Abstract
The utility model discloses a repair structure for tunnel construction and disease are rectified, two curved support strengthening ribs are fixed on the former lining cutting of tunnel, are fixed with the template on two support strengthening ribs, it has filler material to fill between former lining cutting of template and tunnel, be equipped with in the template and be used for filler material to pour into and the slip casting mouth that spills over, two be fixed with the reinforcing bar net on the support strengthening rib. Meanwhile, the reinforcing mesh is arranged in the concrete, so that the bearing capacity of the whole structure is stronger, the service time of the tunnel is prolonged, the later-stage maintenance cost is reduced, the once-for-all remediation effect is achieved, and the guarantee is provided for the safe operation of the railway.
Description
Technical Field
The utility model relates to a tunnel engineering repairs and consolidates technical field.
Background
With the continuous development of railway construction, the quantity, length, scale and construction speed of tunnel projects in China have leaped the top of the world. However, due to the design standards and technical reserve differences in different construction periods and the influence of various factors such as geology, environment, construction and maintenance, the defects and diseases of the lining structure are increasingly revealed at the initial stage of tunnel construction and after operation, and the diseases such as lining cracks, water leakage, lining back cavities, under-thickness, falling-off and the like are commonly generated.
At present, with the development of the operation and maintenance technology of the domestic railway tunnel, technical guidelines of detection monitoring, state evaluation and maintenance are formed. For the cavity behind the tunnel lining, grouting filling is generally adopted, and measures of combined structure reinforcement such as anchor rod anchoring, net hanging spray anchoring, steel arch frame and net hanging spray anchoring and the like are adopted according to the condition of the lining thickness. For cracking and chipping of lining, schemes such as 'micro-window embedding', steel-concrete arch addition, corrugated plate reinforcement and the like are generally adopted.
However, the problems of large span, inconsistent technical standards and more remaining problems in the construction year of railway tunnels in China, short operation and maintenance skylight time, small operation space, limited use of large equipment, construction limitation, defects of the traditional disease treatment technology and the like cause the problems of large difficulty, long period, poor effect, high cost, low safety coefficient, incomplete treatment and the like in the treatment of tunnel diseases. At present, in the tunnel reinforcing scheme adopted, a template is fixed on a wall body needing to be reinforced, and a filling material is filled between the template and the wall body by utilizing holes in the template, so that if the adhesive force between the filling material and the wall body is insufficient, the risk of falling and damage still exists, and therefore, the development of a technology and a matching device with high cost performance and high construction efficiency for tunnel treatment is urgently needed, so that the aim of maintaining once treatment and thorough radical treatment is really fulfilled.
Disclosure of Invention
The utility model aims to solve the technical problem that realize one kind and conveniently implement, can reliably consolidate, guarantee to consolidate back filling material and reliable adhering to fixed tunnel restoration structure of wall body.
In order to achieve the purpose, the technical scheme adopted by the utility model is that the repairing structure for tunnel construction and disease remediation is characterized in that two arc-shaped supporting reinforcing ribs are fixed on an original tunnel lining, templates are fixed on the two supporting reinforcing ribs, filling materials are filled between the templates and the original tunnel lining, grouting ports for filling materials to be injected and overflowed are arranged on the templates, and reinforcing meshes are fixed on the two supporting reinforcing ribs.
Two the support strengthening rib is parallel to each other, upwards extends to opposite side ground by former lining cutting ground one side in tunnel, the template is wave structure, be fixed with many template strengthening ribs on the template, the template strengthening rib is channel-section steel, square steel and fixes in the template outside, the template strengthening rib is mutually perpendicular with the concave-convex structure who constitutes the wave, filling material is the concrete.
And sealant is filled in gaps between adjacent templates, between the templates and the supporting reinforcing ribs and between the supporting reinforcing ribs and the original tunnel lining.
The joint position of the reinforcing mesh is fixedly provided with a reinforcing piece, each interval setting area of the reinforcing mesh is fixedly provided with a reinforcing piece, each reinforcing piece is composed of a first iron wire and a second iron wire, the two iron wires are bent to form four sections, two sections of the four sections face the outside of the reinforcing mesh, and the other two sections of the four sections face the inside of the reinforcing mesh.
The mutual rigid coupling in middle part of first iron wire and second iron wire, the second iron wire is close to the rigid coupling position and is equipped with sunken bayonet socket in opposite directions, the clearance of bayonet socket is less than the external diameter of the reinforcing bar that constitutes the reinforcing bar net.
The utility model has stronger bearing capacity and no deformation, and the corrugated direction of the template adopts a longitudinal installation mode, thereby playing a role of diversion when special concrete is poured and leading the concrete to be more compactly filled; meanwhile, the reinforcing mesh is arranged in the concrete, so that the bearing capacity of the whole structure is stronger, the service time of the tunnel is prolonged, the later-stage maintenance cost is reduced, the once-for-all remediation effect is achieved, and the guarantee is provided for the safe operation of the railway.
Drawings
The following brief descriptions of the contents expressed by each figure and the marks in the figures in the specification of the present invention are as follows:
FIG. 1 is a cross-sectional view of a template;
FIG. 2 is a top view of the die plate;
fig. 3 is a layout view of the supporting reinforcing bars and reinforcing mesh;
fig. 4 is a schematic view of the position of laying the mesh reinforcement;
FIG. 5 is a schematic view of a reinforcement structure;
the labels in the above figures are: 1. a template; 2. supporting reinforcing ribs; 3. a grouting port; 4. a reinforcing mesh; 5. original lining of the tunnel, 6, reinforcing ribs of the template; 7. a first iron wire; 8. a second iron wire; 9. and (4) a bayonet.
Detailed Description
The following description of the embodiments with reference to the drawings is intended to illustrate the present invention in further detail, such as the shapes and structures of the components, the mutual positions and connections between the components, the functions and working principles of the components, the manufacturing process, and the operation and use methods, etc., so as to help those skilled in the art understand the present invention more completely, accurately and deeply.
The reinforced tunnel reinforcing and maintaining device and the structure are improved on the basis of the original maintaining structure, the original maintaining structure mainly comprises supporting reinforcing ribs 2 and a template 1, the supporting reinforcing ribs 2 fixed on the inner wall of the tunnel are arranged along the cross section direction of the tunnel, the supporting reinforcing ribs 2 are fixed on the original lining 5 of the tunnel, and the bottoms of the supporting reinforcing ribs 2 are fixed at the corners of the tunnel by adopting locking pin anchor bolts; the wave-shaped formwork 1 is fixed on two adjacent supporting reinforcing ribs 2 through a fastening device, the formwork reinforcing ribs 6 are installed on the outer side of the formwork 1, the wave direction of the formwork 1 is longitudinal and parallel to the direction of the supporting reinforcing ribs 2, a grouting opening 3 and a grout overflow opening for pouring special concrete are arranged on the formwork 1 at intervals, filling materials are poured through the grouting opening 3 in the formwork 1, the filling materials can be concrete, the special concrete is preferably selected, the formwork 1 is disassembled after the compression strength of the special concrete is larger than or equal to 50MPa, the compression strength of the special concrete 28d is larger than or equal to 100MPa, and the bonding strength with a base plane is larger than or equal to 3.0MPa.
The supporting reinforcing ribs 2 are of arch structures matched with the size and the radian of the tunnel, the two adjacent supporting reinforcing ribs 2 are fixed on the inner wall of the tunnel side by side at certain intervals, the multiple dies are sequentially arranged and fixed on the supporting reinforcing ribs 2, the length of the die plate 1 is consistent with the interval between the reinforcing ribs, the supporting reinforcing ribs 2 are provided with fixing structures used for fixing the die plate 1, and the supporting reinforcing ribs 2 are preferably made of I-shaped steel, square steel and channel steel.
The section of the wave crest/wave trough of the wave-shaped template 1 is concave-convex isosceles trapezoid or arc, and the installation direction of the template 1 is wave-shaped and longitudinal and is parallel to the supporting reinforcing rib 2. The template 1 is one of a steel template 1, an aluminum alloy template 1, a fiber reinforced composite material template 1 and a bamboo glue template 1, and the template reinforcing ribs 6 are made of high-strength materials such as channel steel and square steel and are arranged on the outer side of the template 1. In order to ensure the sealing performance during filling, sealing glue is filled in gaps between adjacent templates 1, between the templates 1 and the supporting reinforcing ribs 2/and between the supporting reinforcing ribs 2 and the original tunnel lining 5.
The utility model discloses be provided with reinforcing bar net 4 between per two adjacent support strengthening ribs 2, like this filling material can form whole reinforced structure with support strengthening rib 2 and inside reinforcing bar net 4. The distance between the reinforcing mesh 4 and the original tunnel lining 5 is the same as that between the reinforcing mesh and the template 1, and the reinforcing mesh 4 is fixed on the supporting reinforcing ribs 2 by welding or other methods.
In order to further improve the adhesion, a reinforcing member is fixed at the joint of the reinforcing mesh 4, a reinforcing member is fixed at each set area of the reinforcing mesh 4, the structure of the reinforcing member is as shown in fig. 5, the structure of the reinforcing member is the structure of the reinforcing member before installation, four sections of the reinforcing member after installation are two sections outwards and two sections inwards and are respectively contacted with the filling materials inside and outside the reinforcing mesh 4, and the connection of the reinforcing member and the reinforcing mesh 4 is also very reliable.
The reinforcement comprises first iron wire 7 and second iron wire 8, and two iron wires are bent the back and are the four sections, and wherein two sections are outside towards reinforcing bar net 4, in two sections other orientation reinforcing bar nets 4. Mutual rigid coupling in middle part of first iron wire 7 and second iron wire 8, can adopt intertwine's mode, also can adopt welded mode, perhaps two kinds of modes adopt simultaneously, second iron wire 8 is close to the rigid coupling position and is equipped with bayonet socket 9 sunken in opposite directions, bayonet socket 9's clearance is less than the external diameter of the reinforcing bar that constitutes reinforcing bar net 4, can be very convenient like this with its preliminary fixed reinforcing bar net 4 on, promote the convenience of reinforcement later stage installation, pull down towards the outside with the mode of winding reinforcing bar net 4 with the inside one section of first iron wire 7 again after fixed, then accomplish the installation of reinforcement.
The use method of the whole tunnel reinforcing and maintaining device is as follows:
(1) Treating a basal plane of a lining structure of the damaged tunnel, anchoring and lapping at a cracking position, anchoring and lapping at a falling position, filling with sealant, and roughening the basal plane;
(2) Anchoring brad nails can be distributed on the original lining structure according to requirements and arranged in a quincunx shape.
(3) And (3) mounting the supporting reinforcing ribs 2, prefabricating the supporting reinforcing ribs 2 according to the cross section size of the tunnel, wherein the spacing distance between two adjacent reinforcing ribs is matched with the length of the template 1, so that the template 1 can be lapped on the two adjacent reinforcing ribs 2, and the supporting reinforcing ribs 2 are not removed after the special concrete is solidified and are used as a part of the reinforcing and repairing material, and only the mounting template 1 on the supporting reinforcing ribs 2 is removed.
(4) And laying a reinforcing mesh 4, installing the reinforcing mesh 4 with the designed size between the two support reinforcing ribs 2, firmly welding the reinforcing mesh 4 and the support reinforcing ribs 2, and also firmly welding the transverse and longitudinal intersections of the reinforcing mesh 4.
(5) Fixing the reinforcing member, the initial state of the reinforcing member is that three sections are on the same side, the remaining one section is on the other side, arranging the reinforcing member according to the required density, namely, the reinforcing member is not required to be arranged at the position where each reinforcing mesh 4 is jointed, inwards pushing the bayonet 9 of the reinforcing member, clamping the bayonet 9 at the joint of the reinforcing mesh 4, at the moment, the three sections of the reinforcing member are inwards, then, pulling down the other section of the first reinforcing steel bar around the joint outside the reinforcing mesh 4, forming the layout of the two sections inside and outside, and improving the adhesive force between the reinforcing mesh 4 and the filling material.
(6) Installing a template 1, uniformly coating a release agent on the inner side of the template 1, reasonably designing a grouting opening 3 according to requirements (simultaneously having an overflowing effect), overlapping two sides of the template 1 on two adjacent support reinforcing ribs 2, and fixing the template 1 on the support reinforcing ribs 2 by adopting a fastening device.
(7) Installing the template reinforcing ribs 6, and fixing the template reinforcing ribs 6 on the template 1 by adopting welding and other modes so as to increase the bearing capacity of the template 1 and prevent deformation.
(8) And coating sealant, namely coating the sealant between the support reinforcing ribs 2 and the original tunnel lining 5, between the template 1 and the reinforcing ribs and at the gaps between the template 1 and the template 1.
(9) Pouring special concrete, after the sealant coated in the step (7) is solidified, pouring the concrete from the grouting opening 3 by using matched grouting equipment until the grout overflow opening flows out, and continuously vibrating the template 1 during pouring to ensure that the concrete is tightly filled;
(10) Removing the formwork, namely removing the mounting formwork 1 fixed on the supporting reinforcing ribs 2 after the grouting material is hardened and the compressive strength reaches 50 MPa;
(10) And (5) polishing and repairing, removing the residual sealant on the concrete after the form is removed, and polishing and flattening the position with the burr.
In the construction method of the device for maintaining and reinforcing the tunnel, the improved template 1 and the supporting reinforcing ribs 2 are adopted, the reinforcing mesh 4 is laid, devices such as the template reinforcing ribs 6 are arranged, the bearing capacity of the template 1 is stronger, the phenomenon that the template 1 deforms or even falls off due to the dead weight of poured concrete and the pressure during pouring is avoided, the template 1 with the longitudinal wave structure is simultaneously generated, the effect of guiding special concrete is achieved, the concrete is more compactly filled, the phenomenon that the concrete is emptied is avoided, the construction is more convenient and rapid, safe and reliable, a new two-lining structure is more stable after the reinforcing mesh 4 structure is added, safety and reliability are achieved, the durability is better, the spliced template 1 can be repeatedly utilized, and the defects that the corrugated plate reinforcing technology is high in cost, large in construction difficulty and difficult to popularize and apply are effectively overcome.
The present invention has been described above with reference to the accompanying drawings, and it is to be understood that the invention is not limited to the specific embodiments described above, and that the invention is not limited to the specific embodiments described above, but rather is intended to cover various insubstantial modifications of the inventive method and solution, or its application to other applications without modification.
Claims (7)
1. The utility model provides a repair structure for tunnel construction and disease are rectified, two curved support strengthening ribs are fixed on the former lining cutting of tunnel, are fixed with the template on two support strengthening ribs, it has filler material to fill between former lining cutting of template and tunnel, be equipped with the slip casting mouth that is used for filler material to pour into and overflows in the template, its characterized in that: and reinforcing mesh is fixed on the two supporting reinforcing ribs.
2. The repair structure for tunnel construction and disease remediation according to claim 1, wherein: two the support strengthening rib is parallel to each other, upwards extends to opposite side ground by former lining cutting ground one side in tunnel, the template is wave structure, be fixed with many template strengthening ribs on the template, the template strengthening rib is channel-section steel, square steel and fixes in the template outside, the template strengthening rib is mutually perpendicular with the concave-convex structure who constitutes the wave, filling material is the concrete.
3. The repair structure for tunnel construction and disease remediation according to claim 2, wherein: and sealant is filled in gaps between adjacent templates, between the templates and the supporting reinforcing ribs and between the supporting reinforcing ribs and the original tunnel lining.
4. The repair structure for tunnel construction and disease remediation of claim 1, 2, or 3, wherein: a reinforcing piece is fixed at the joint position of the reinforcing mesh, and a reinforcing piece is fixed at each interval set area of the reinforcing mesh.
5. The repair structure for tunnel construction and disease remediation according to claim 4, wherein: the reinforcement comprises first iron wire and second iron wire, and two iron wires are the four sections after buckling, and wherein two sections are outside towards the reinforcing bar net, and two sections are in addition towards the reinforcing bar net.
6. The repair structure for tunnel construction and disease remediation according to claim 5, wherein: the middle parts of the first iron wire and the second iron wire are fixedly connected with each other.
7. The repair structure for tunnel construction and disease remediation according to claim 6, wherein: the second iron wire is provided with bayonets recessed in opposite directions near the fixed connection position, and gaps of the bayonets are smaller than the outer diameter of the steel bars forming the steel bar mesh.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221903256.XU CN217681785U (en) | 2022-07-22 | 2022-07-22 | A repair structure for tunnel construction and disease renovation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221903256.XU CN217681785U (en) | 2022-07-22 | 2022-07-22 | A repair structure for tunnel construction and disease renovation |
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| Publication Number | Publication Date |
|---|---|
| CN217681785U true CN217681785U (en) | 2022-10-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202221903256.XU Active CN217681785U (en) | 2022-07-22 | 2022-07-22 | A repair structure for tunnel construction and disease renovation |
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| CN (1) | CN217681785U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116291551A (en) * | 2023-03-13 | 2023-06-23 | 德州市公路工程总公司 | Superposed lining arch construction structure and construction method thereof |
-
2022
- 2022-07-22 CN CN202221903256.XU patent/CN217681785U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116291551A (en) * | 2023-03-13 | 2023-06-23 | 德州市公路工程总公司 | Superposed lining arch construction structure and construction method thereof |
| CN116291551B (en) * | 2023-03-13 | 2025-08-22 | 德州市公路工程总公司 | Composite lining arch construction structure and construction method |
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