CN219327542U - Existing tunnel repair structure - Google Patents
Existing tunnel repair structure Download PDFInfo
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- CN219327542U CN219327542U CN202223024977.6U CN202223024977U CN219327542U CN 219327542 U CN219327542 U CN 219327542U CN 202223024977 U CN202223024977 U CN 202223024977U CN 219327542 U CN219327542 U CN 219327542U
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Abstract
The utility model provides an existing tunnel repairing structure which comprises a corrugated plate component, a foundation, a track penetrating slat and a reinforcing layer; the corrugated plate assembly is formed by splicing stainless steel corrugated plates along the circumferential direction of an existing tunnel, and inner flanging is arranged on two sides of each stainless steel corrugated plate; in the structure of the utility model, the spliced corrugated steel component is connected with the ballast bed through the foundation and the track penetrating lath to form a ring integral annular structure, then the spliced corrugated steel component is fixed with the existing tunnel through the fastener to form a whole, micro-expansion high-strength cement mortar is poured into a space formed between the spliced structure and the inner wall of the existing tunnel, and a reinforcing layer formed after consolidation is integrated with the spliced structure of the stainless steel and the inner wall of the existing tunnel to form a common stressed structure, thereby realizing the purposes of repairing and reinforcing the existing tunnel, being suitable for intermittent or continuous repair of tunnels such as subways and the like and having higher repairing and reinforcing efficiency.
Description
Technical Field
The utility model belongs to the technical field of tunnel repair, and particularly relates to an existing tunnel repair structure.
Background
The tunnel in urban rail transit is designed and constructed by a shield structure, namely prefabricated segments are assembled in a bolt fixing mode, a multi-stranded ring structure is formed in soil with the depth of about 20-50 meters underground and is lower than the pressure of external soil (including cement paste), therefore, the soil and the slurry around the tunnel become a load supporting body and are carriers for guaranteeing a stable structure of the tunnel, if a small amount of overload, unloading, displacement and other changes occur, the tunnel structure is deformed, the safety operation limit of vehicles in the tunnel is affected by serious deformation, the safety operation is directly endangered, and tunnel diseases are unavoidable along with the increase of the total mileage of railway construction, so that a large amount of tunnel repairing engineering is brought.
The existing structure reinforcing methods at home and abroad mainly comprise a fiber-bonded composite reinforcing method and a steel plate-bonded reinforcing method, wherein the fiber-bonded composite reinforcing method is difficult to completely solidify an adhesive in a short time and seriously influences the effect of reinforcing a tunnel structure, and the steel plate-bonded reinforcing method is difficult to solve the problems that the dead weight of a steel plate is overlarge, long time is required for long-distance entering and exiting reinforcement by special weight lifting equipment, a plurality of welding seams are required, the fluctuation of welding quality is large, the reinforcing cost is high and the like.
How to design an existing tunnel repairing structure and how to increase the tunnel repairing efficiency is a problem to be solved at present.
Disclosure of Invention
In view of the above-mentioned drawbacks of the prior art, an object of the present utility model is to provide an existing tunnel repairing structure, which is used for solving the problems of difficult tunnel repairing and low efficiency in the prior art.
In order to achieve the above object, the present utility model provides an existing tunnel repair structure, including a corrugated plate assembly, a foundation, a rail penetrating strip plate, and a reinforcing layer;
the corrugated plate assembly is formed by splicing stainless steel corrugated plates along the circumferential direction of an existing tunnel, and inner flanging is arranged on two sides of each stainless steel corrugated plate; the adjacent stainless steel corrugated plates are fixed through bridging pieces, the bridging pieces comprise bridging plates lined between the ends of the adjacent stainless steel corrugated plates, the bridging plates are fixed with the wave crests of the ends of the stainless steel corrugated plates through bolts, the bridging plates are fixed with the wave troughs of the ends of the stainless steel corrugated plates and the inner wall of the existing tunnel through fasteners, and a pouring space is formed between the stainless steel corrugated plates and the inner wall of the existing tunnel;
the upper ends of the feet are butted at the lower ends of the corrugated plate assemblies along the circumferential direction of the tunnel, and the connecting structure of the feet and the corrugated plate assemblies is the same as the connecting structure of the adjacent stainless steel corrugated plates;
the rail penetrating strip plate traverses the existing rail and is fixed with the lower end of the foundation;
the reinforcing layer is formed by solidifying micro-expansion high-strength cement mortar poured into the pouring space.
By adopting the technical scheme: arranging the foundation feet on two sides of the ballast bed of the existing tunnel, splicing stainless steel corrugated plates above the foundation feet to form a corrugated steel assembly structure, fixing the foundation feet on two sides of the existing ballast bed through rail penetrating plates, connecting the corrugated steel assembly, the foundation feet and the rail penetrating plates with the ballast bed to form a whole, fixing the stainless steel corrugated plates and the foundation feet with the inner wall of the existing tunnel into a whole through fasteners, and finally pouring micro-expansion high-strength cement mortar into a pouring space formed between the stainless steel corrugated plates and the inner wall of the existing tunnel, and forming a reinforcing layer after consolidation to realize the restoration of the inner wall of the existing tunnel; the corrugated steel assembly, the ground feet, the track penetrating strip plates and the track bed are connected into a ring integral annular structure, the structure is fixed with the inner wall of the existing tunnel into a whole through fasteners, micro-expansion high-strength cement mortar is poured into a gap between the structure and the inner wall of the existing tunnel, and a common stress structure is formed with the existing tunnel after solidification, so that the purpose of repairing and reinforcing the existing tunnel is achieved, and the structure is suitable for intermittent or continuous repairing of tunnels such as subway railways; the whole annular structure is an assembled structure, so that the construction time and the construction difficulty can be greatly reduced while the existing tunnel is quickly repaired and reinforced, and the repair efficiency of the existing tunnel is improved.
In an embodiment of the utility model, the inner flange comprises a flange inner flange and a reinforcing rib inner flange, wherein the center of the flange inner flange is provided with uniformly distributed axial connecting holes along the plate direction of the stainless steel corrugated plate.
By adopting the technical scheme: the flange type stainless steel corrugated plate is provided with two flange types, the flange type stainless steel corrugated plate and the reinforcing rib type stainless steel corrugated plate can be used according to the actual longitudinal repair width of the tunnel, and the flange type stainless steel corrugated plate can be connected with the bolt in a matched mode through the axial connecting holes on the flange type stainless steel corrugated plate so as to adapt to the longitudinal repair widths of different tunnels.
In an embodiment of the utility model, the bridge member further includes an impermeable gasket, the impermeable gasket is pressed between the bridge member and the body to be connected, and the body to be connected includes a stainless steel corrugated plate and a ground leg.
By adopting the technical scheme: the leakproofness that sets up prevention of seepage gasket and increase adjacent stainless steel buckled plate hookup location department and stainless steel buckled plate and lower margin hookup location department prevents to repair the structure seepage, and the micro-expansion cement mortar that excels in when avoiding follow-up pouring overflows.
In an embodiment of the utility model, a first anchor hole matched with the fastener is formed at the end trough position of the stainless steel corrugated plate, and a first bolting hole matched with the bolt is formed at the end crest position of the stainless steel corrugated plate.
By adopting the technical scheme: the trough position of the end head of the stainless steel corrugated plate is more attached to the inner wall of the tunnel, and the first anchor hole is formed in the trough position and can be matched with a fastener to increase the connection stability of the stainless steel corrugated plate and the inner wall of the existing tunnel; the crest position of the end of the stainless steel corrugated plate can be spaced from the inner wall of the tunnel, so that the installation of the bolt and the connection between adjacent stainless steel corrugated plates are facilitated, and the stainless steel corrugated plates can be ensured to form a filling space with the inner wall of the tunnel.
In an embodiment of the present utility model, the bridging plate is a corrugated plate with the same waveform as the stainless steel corrugated plate and the waveform at the top end of the anchor, and the crest and the trough of the bridging plate are both provided with through holes, and the through holes are kidney-shaped holes.
By adopting the technical scheme: the bridging plate can be mutually attached to the stainless steel corrugated plate and the foot ends, the mutual connection area is increased, and the connection stability can be ensured after the bridging plate is connected with the stainless steel corrugated plate and the foot ends through bolts; the waist-shaped through holes are arranged to adapt to the positions of the bolts, so that assembly deviation can be adjusted, and connection difficulty is reduced.
In an embodiment of the utility model, the foundation is a heat forming grid-type plate frame structure, a second anchor hole matched with the fastener is formed at the trough position of the upper end of the foundation, a second bolt hole matched with the bolt is formed at the crest position of the upper end of the foundation, and the second anchor hole and the second bolt hole are both bar-shaped holes.
By adopting the technical scheme: the upper side of the ground leg is set to be a hot forming grid type plate frame structure so as to increase the strength of the whole structure; the second anchor hole and the second bolting hole are arranged to be respectively suitable for the fastener and the bolt, and are arranged to be strip-shaped holes to be suitable for the positions of the fastener and the bolt, so that certain position deviation and adjustment can be allowed, and the connection difficulty is reduced.
In one embodiment of the utility model, the lower end of the foundation is fixed with one limb of the corner connector by a bolt, and the other limb of the corner connector is lapped on the upper side of the end part of the rail penetrating slat and is fixed by the bolt.
By adopting the technical scheme: and the corner connector is used as an intermediate connector to realize the connection between the lower end of the ground leg and the end part of the rail penetrating plate.
In an embodiment of the present utility model, both ends of the rail penetrating strip plate are provided with third bolting holes matched with the bolts, and the third bolting holes are kidney-shaped holes.
By adopting the technical scheme: the third bolting hole is used for providing the mounting position of the bolt and is arranged to be a waist-shaped hole to adapt to the position of the bolt, so that a certain deviation exists in the penetrating position of the bolt, and the difficulty of connection is reduced.
Advantageous effects
In the structure, 1) the assembled corrugated steel component is connected with a ballast bed through the ground feet and the track penetrating laths to form a ring integral annular structure, then the ring integral annular structure is fixed with the existing tunnel into a whole through the fasteners, micro-expansion high-strength cement mortar is poured into a pouring space formed between the structure and the inner wall of the existing tunnel, and after the micro-expansion high-strength cement mortar is solidified, the structure and the existing tunnel structure form a common stress structure, so that the purpose of repairing and reinforcing the existing tunnel is realized, and the common stress structure has higher repairing and reinforcing efficiency; 2) The corrugated steel component is formed by connecting stainless steel corrugated plates through matching bridging pieces, the stainless steel corrugated plates have longer service lives, and the single stainless steel corrugated plates are small in occupied area, convenient to transport and low in cost, can be quickly connected after being transported to a tunnel repairing position, and have the characteristic of high construction efficiency; 3) The stainless steel corrugated plate component is flanged inwards by adopting a flange or a reinforcing rib, and is suitable for continuous or intermittent repair of the existing tunnel; 4) The characteristics of the corrugated plates are fully utilized, and the bolting holes and the bolting Kong Oubie are matched with the fasteners while the filling space is formed between the corrugated plates and the inner wall of the existing tunnel, so that the fastening connection between the adjacent corrugated plates and the double-layer effect of fixing the corrugated plates and the inner wall of the existing tunnel can be realized, the connection strength between the adjacent corrugated plates is increased, the stability of the integral structure is improved, and the use quantity of the anchor rods can be reduced; the popularization and application have good economic benefit and social benefit.
Drawings
Fig. 1 is a schematic perspective view of the present utility model.
Fig. 2 is a side view of a corrugated stainless steel plate of the present utility model.
Fig. 3 is a cross-sectional view of a corrugated stainless steel plate of the present utility model.
Fig. 4 is a schematic view of the butt joint of stainless steel corrugated plate ends of the present utility model.
Fig. 5 is a cross-sectional view of a bridge plate of the present utility model.
Fig. 6 is a side view of the bridge plate of the present utility model.
Fig. 7 is a front view of the anchor of the present utility model.
FIG. 8 is a side view of a foot margin of the present utility model.
Fig. 9 is a cross-sectional view taken along line A-A in fig. 7.
Fig. 10 is a cross-sectional view of the corner joint of the present utility model.
Fig. 11 is a top view of the rail plate of the present utility model.
In the figure: 1. a corrugated board assembly; 11. stainless steel corrugated plate; 111. a first anchor hole; 112. a first bolting hole; 2. a foot margin; 23. a second anchor hole; 24. a second bolting hole; 3. a bridging plate; 31. penetrating the hole; 4. an impermeable gasket; 5. a bolt; 6. corner connectors; 7. a rail penetrating slat; 71. and a third bolting hole.
Detailed Description
Further advantages and effects of the present utility model will become apparent to those skilled in the art from the disclosure of the present utility model, which is described by the following specific examples.
Please refer to fig. 1 to 11. It should be understood that the structures, proportions, sizes, etc. shown in the drawings are for illustration purposes only and should not be construed as limiting the utility model to the extent that it can be practiced, since modifications, changes in the proportions, or otherwise, used in the practice of the utility model, are not intended to be critical to the essential characteristics of the utility model, but are intended to fall within the spirit and scope of the utility model. Also, the terms such as "upper," "lower," "left," "right," "middle," and "a" and the like recited in the present specification are merely for descriptive purposes and are not intended to limit the scope of the utility model, but are intended to provide relative positional changes or modifications without materially altering the technical context in which the utility model may be practiced.
Embodiment one:
as shown in fig. 1 to 11, the present utility model provides an existing tunnel repair structure including a corrugated plate assembly 1 as a main repair structure, a ground leg 2, a rail penetrating plate 7, and a reinforcing layer;
referring to fig. 1-6, a corrugated plate assembly 1 is formed by splicing stainless steel corrugated plates 11 along the circumferential direction of an existing tunnel, wherein both sides of each stainless steel corrugated plate 11 are provided with reinforcing rib inward flanging for increasing structural strength, and meanwhile, a pouring space can be formed between each stainless steel corrugated plate 11 and the inner wall of the existing tunnel after the stainless steel corrugated plate 11 is attached and fixed with the existing tunnel; the bridge piece comprises a bridge plate 3 which is lined between the ends of adjacent stainless steel corrugated plates 11 and has the same wave shape as the stainless steel corrugated plates 11, the bridge plate 3 is fixed with the wave crest of the ends of the stainless steel corrugated plates 11 through bolts 5, the ends of the adjacent stainless steel corrugated plates 11 can be fixed by using the bolts 5, the bridge plate 3 is fixed with the wave troughs of the ends of the stainless steel corrugated plates 11 and the inner wall of the existing tunnel through fasteners, the stainless steel corrugated plates 11 can be fixed with the inner wall of the existing tunnel through the fasteners, the connection stability between the adjacent stainless steel corrugated plates 11 is increased, and a pouring space is formed between the stainless steel corrugated plates 11 and the inner wall of the existing tunnel, so that a precondition is provided for forming an integrated structure for pouring micro-expansion high-strength cement mortar;
the bridge piece still includes prevention of seepage gasket 4, and prevention of seepage gasket 4 presses locates bridge plate 3 and wait to connect between the body, waits to connect the body and includes stainless steel buckled plate 11 and lower margin 2, sets up prevention of seepage gasket 4 and increases adjacent stainless steel buckled plate 11 junction and stainless steel buckled plate 11 and lower margin 2 junction's leakproofness, prevents to repair the structure seepage, and micro-expansion high strength cement mortar overflows when avoiding follow-up pouring.
Referring to fig. 7-9, the upper side of the anchor 2 is configured as a heat forming grid-shaped plate frame structure, the structural strength of the anchor 2 is increased, the upper end of the anchor 2 is butted at the lower end of the corrugated plate assembly 1 along the circumferential direction of the tunnel, the connection structure of the anchor 2 and the corrugated plate assembly 1 is identical to the connection structure of the adjacent stainless steel corrugated plate 11, the connection form between the anchor 2 and the stainless steel corrugated plate 11 and the adjacent stainless steel corrugated plate 11 is identical, the connection difficulty is reduced, the upper end of the anchor 2 is ensured to adapt to the waveform of the stainless steel corrugated plate 11, and the connection stability of the anchor 2 and the stainless steel corrugated plate 11 is increased.
Referring to fig. 10-11, the rail penetrating plate 7 traverses the existing track and is fixed with the lower end of the anchor 2 through the corner connector 6, and the anchors 2 on two sides are integrated through the rail penetrating plate 7, so that the corrugated steel assembly 1, the anchor 2 and the rail penetrating plate 7 form a ring type integral structure, better tensile resistance and compressive resistance are formed, and reliable integral performance is achieved.
The reinforcing layer is formed by solidifying micro-expansion high-strength cement mortar poured into the pouring space, and after the reinforcing layer is formed, the reinforcing layer can be fixed with an annular integral structure formed by the corrugated steel component 1, the foundation 2 and the track penetrating lath 7 and the inner wall of the tunnel, so that the annular integral structure is fixed with the inner wall of the existing tunnel, and the repair and reinforcement of the existing tunnel are completed.
Embodiment two:
referring to fig. 1 to 11, an existing tunnel repair structure includes a corrugated plate assembly 1 as a main repair structure, a ground leg 2, a rail penetrating plate 7, and a reinforcing layer;
referring to fig. 1-6, a corrugated plate assembly 1 is formed by splicing stainless steel corrugated plates 11 along the circumferential direction of an existing tunnel, flange inward flanging which is used for increasing structural strength and is convenient for connecting adjacent stainless steel corrugated plates 11 along the longitudinal direction of the tunnel is arranged on two sides of each stainless steel corrugated plate 11, and meanwhile, a pouring space can be formed between each stainless steel corrugated plate 11 and the inner wall of the existing tunnel after the stainless steel corrugated plates 11 are attached and fixed with the existing tunnel; the stainless steel corrugated plates 11 longitudinally adjacent to each other along the existing tunnel are fixed through matching with bolts 5 through flange inward flanging, the ends of the stainless steel corrugated plates 11 adjacent to each other along the circumferential direction of the existing tunnel are fixed through bridging pieces, each bridging piece comprises a bridging plate 3 which is lined between the ends of the adjacent stainless steel corrugated plates 11 and has the same wave shape as the stainless steel corrugated plates 11, the bridging plates 3 are fixed with the wave crests of the ends of the stainless steel corrugated plates 11 through the bolts 5, the ends of the adjacent stainless steel corrugated plates 11 can be fixed through the bolts 5, the bridging plates 3 are fixed with the wave troughs of the ends of the stainless steel corrugated plates 11 and the inner walls of the existing tunnel through fasteners, the stainless steel corrugated plates 11 can be fixed with the inner walls of the existing tunnel through the fasteners, meanwhile, the connection stability between the adjacent stainless steel corrugated plates 11 is increased, and a pouring space is formed between the stainless steel corrugated plates 11 and the inner walls of the existing tunnel, and a precondition is provided for forming an integral structure for pouring micro-expansion high-strength cement mortar;
the bridge piece still includes prevention of seepage gasket 4, and prevention of seepage gasket 4 presses locates bridge plate 3 and wait to connect between the body, waits to connect the body and includes stainless steel buckled plate 11 and lower margin 2, sets up prevention of seepage gasket 4 and increases adjacent stainless steel buckled plate 11 junction and stainless steel buckled plate 11 and lower margin 2 junction's leakproofness, prevents to repair the structure seepage, and micro-expansion high strength cement mortar overflows when avoiding follow-up pouring.
Referring to fig. 7-9, the upper side of the anchor 2 is configured as a heat forming grid-shaped plate frame structure, the structural strength of the anchor 2 is increased, the upper end of the anchor 2 is butted at the lower end of the corrugated plate assembly 1 along the circumferential direction of the tunnel, the connection structure of the anchor 2 and the corrugated plate assembly 1 is identical to the connection structure of the adjacent stainless steel corrugated plate 11, the connection form between the anchor 2 and the stainless steel corrugated plate 11 and the adjacent stainless steel corrugated plate 11 is identical, the connection difficulty is reduced, the upper end of the anchor 2 is ensured to adapt to the waveform of the stainless steel corrugated plate 11, and the connection stability of the anchor 2 and the stainless steel corrugated plate 11 is increased.
Referring to fig. 10-11, the rail penetrating plate 7 traverses the existing track and is fixed with the lower end of the anchor 2 through the corner connector 6, and the anchors 2 on two sides are integrated through the rail penetrating plate 7, so that the corrugated steel assembly 1, the anchor 2 and the rail penetrating plate 7 form a ring type integral structure, better tensile resistance and compressive resistance are formed, and reliable integral performance is achieved.
The reinforcing layer is formed by solidifying micro-expansion high-strength cement mortar poured into the pouring space, and after the reinforcing layer is formed, the reinforcing layer can be fixed with an annular integral structure formed by the corrugated steel component 1, the foundation 2 and the track penetrating lath 7 and the inner wall of the tunnel, so that the annular integral structure is fixed with the inner wall of the existing tunnel, and the repair and reinforcement of the existing tunnel are completed.
In the concrete implementation, the bolt 5 and the adaptive anti-seepage gasket 4 are fixed in the first bolting hole 112 at the end head of the stainless steel corrugated plate 11 and the second bolting hole 24 at the upper end of the foundation 2 by using a clamp spring; placing the foundation plates 2 on two sides of the existing ballast bed foundation, starting from the upper end of the foundation plate 2 on any side, placing a first stainless steel corrugated plate 11, confirming that the stainless steel corrugated plate 11 is in the same radian as the foundation plate 2 in a butt joint mode, then lining a joint position of the stainless steel corrugated plate 11 and the foundation plate 2 with a bridging plate 3, enabling an anti-seepage gasket 4 and the bridging plate 3 to be sleeved on a bolt 5 fixed at the butt joint position of the stainless steel corrugated plate 11 and the foundation plate 2 through a through hole 31, tightening the bolt 5 to enable the bridging plate 3 to be tightly pressed on the anti-seepage gasket 4, and finishing fixation of the butt joint position of the stainless steel corrugated plate 11 and the foundation plate 2; butt joint between adjacent stainless steel corrugated plates 11 is carried out along the circumferential direction of the existing tunnel in the same way, and finally the last stainless steel corrugated plate 11 is fixed with the upper end of the other side foundation 2; the anchor bolts serving as fasteners sequentially pass through the unused through holes 31 on the bridging plate 3, the anti-seepage gaskets 4 and the first anchor holes 111 on the stainless steel corrugated plates 11 from inside to outside to be driven into the inner wall of the existing tunnel, so that the stainless steel corrugated plates 11 and the inner wall of the existing tunnel are fixed; a rail penetrating plate 7 is paved on the existing rail, the end part of the rail penetrating plate 7 is fixed with one limb of the corner joint 6 through the cooperation of the third bolting hole 71 and the bolt 5, and then the other limb of the corner joint 6 is fixed with the lower end of the foundation 2 through the bolt 5; the anchor bolts serving as fasteners sequentially penetrate through the unused penetrating holes 31, the anti-seepage gaskets 4 and the second anchor holes 23 on the anchor feet 2 on the bridging plate 3 from inside to outside and are driven into the inner wall of the existing tunnel, so that the anchor feet 2 and the inner wall of the existing tunnel are fixed; the grouting holes and the overflow holes are formed in the stainless steel corrugated plate 11 on the installed middle upper side, micro-expansion high-strength cement mortar is injected into a grouting space formed between the stainless steel corrugated plate 11 and the inner wall of the existing tunnel through the grouting holes, grouting of the whole ring is completed at one time through slurry self-flowing, and the micro-expansion high-strength cement mortar is waited to be solidified into a reinforcing layer, so that reinforcing construction is completed.
In summary, the utility model provides an existing tunnel repairing structure, the assembled corrugated steel component 1 is connected with a ballast bed through the anchor 2 and the rail penetrating plate 7 to form a ring integral annular structure, then is fixed with the existing tunnel through a fastener into a whole, and is filled with micro-expansion high-strength cement mortar in a filling space formed between the structure and the inner wall of the existing tunnel, and after the micro-expansion high-strength cement mortar is solidified, the structure and the existing tunnel structure form a common stress structure, thereby realizing the purpose of repairing and reinforcing the existing tunnel, and the common stress structure has higher repairing and reinforcing efficiency; the corrugated steel component 1 is formed by connecting stainless steel corrugated plates 11 with bridging pieces, the stainless steel corrugated plates 11 have longer service lives, and the single stainless steel corrugated plates 11 are small in occupied area, convenient to transport and low in cost, can be quickly connected after being transported to a tunnel repairing position, and have the characteristic of high construction efficiency; the flange inward flanging or the reinforcing rib inward flanging stainless steel corrugated plate 11 assembly is adopted, so that the method is suitable for continuous or intermittent repair of the existing tunnel; the characteristics of the corrugated plates are fully utilized, and the bolting holes and the bolting Kong Oubie are matched with the fasteners while the filling space is formed between the corrugated plates and the inner wall of the existing tunnel, so that the fastening connection between the adjacent corrugated plates and the double-layer effect of fixing the corrugated plates and the inner wall of the existing tunnel can be realized, the connection strength between the adjacent corrugated plates is increased, the stability of the whole structure is improved, and the use quantity of the anchor rods can be reduced; the popularization and application have good economic benefit and social benefit. Therefore, the utility model effectively overcomes various defects in the prior art and has high industrial utilization value.
The above embodiments are merely illustrative of the principles of the present utility model and its effectiveness, and are not intended to limit the utility model. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the utility model. Accordingly, it is intended that all equivalent modifications and variations of the utility model be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.
Claims (8)
1. An existing tunnel repair structure, characterized in that: comprises a corrugated plate component (1), a foundation (2), a track penetrating slat (7) and a reinforcing layer;
the corrugated plate assembly (1) is formed by splicing stainless steel corrugated plates (11) along the circumferential direction of an existing tunnel, and inner flanging is arranged on two sides of each stainless steel corrugated plate (11); the adjacent ends of the stainless steel corrugated plates (11) are fixed through bridging pieces, the bridging pieces comprise bridging plates (3) lined between the ends of the adjacent stainless steel corrugated plates (11), the bridging plates (3) are fixed with the end crest of the stainless steel corrugated plates (11) through bolts (5), the bridging plates (3) are fixed with the end trough of the stainless steel corrugated plates (11) and the inner wall of the existing tunnel through fasteners, and a pouring space is formed between the stainless steel corrugated plates (11) and the inner wall of the existing tunnel;
the upper ends of the ground feet (2) are butted at the lower ends of the corrugated plate assemblies (1) along the circumferential direction of the tunnel, and the connecting structure of the ground feet (2) and the corrugated plate assemblies (1) is the same as the connecting structure of the adjacent stainless steel corrugated plates (11);
the rail penetrating strip plate (7) crosses the existing rail and is fixed with the lower end of the foundation (2);
the reinforcing layer is formed by solidifying micro-expansion high-strength cement mortar poured into the pouring space.
2. An existing tunnel repair structure according to claim 1, wherein: the inner flanging comprises a flange inner flanging and a reinforcing rib inner flanging, wherein the center of the flange inner flanging is provided with uniformly distributed axial connecting holes along the plate direction of the stainless steel corrugated plate (11).
3. An existing tunnel repair structure according to claim 1, wherein: the bridge piece further comprises an anti-seepage gasket (4), the anti-seepage gasket (4) is pressed between the bridge plate (3) and the to-be-connected body, and the to-be-connected body comprises a stainless steel corrugated plate (11) and a foundation (2).
4. An existing tunnel repair structure according to claim 1, wherein: the stainless steel corrugated plate (11) is characterized in that a first anchor hole (111) matched with a fastener is formed in the position of the trough of the end head of the stainless steel corrugated plate (11), and a first bolting hole (112) matched with the bolt (5) is formed in the position of the peak of the end head of the stainless steel corrugated plate (11).
5. An existing tunnel repair structure according to claim 1, wherein: the bridge plate (3) is a corrugated plate with the same waveform as that of the stainless steel corrugated plate (11) and the top end of the foundation (2), through holes (31) are formed in the positions of the peaks and the troughs of the bridge plate (3), and the through holes (31) are kidney-shaped holes.
6. An existing tunnel repair structure according to claim 1, wherein: the lower margin (2) is a hot forming grid type plate frame structure, a second anchor hole (23) matched with a fastener is formed in the trough position of the upper end of the lower margin (2), a second bolt hole (24) matched with a bolt (5) is formed in the crest position of the upper end of the lower margin (2), and the second anchor hole (23) and the second bolt hole (24) are bar-shaped holes.
7. An existing tunnel repair structure according to claim 1, wherein: the lower end of the foundation (2) is fixed with one limb of the corner joint piece (6) through the bolt (5), and the other limb of the corner joint piece (6) is lapped on the upper side of the end part of the rail penetrating strip plate (7) and is fixed through the bolt (5).
8. An existing tunnel repair structure according to claim 7, wherein: third bolting holes (71) matched with the bolts (5) are formed in two ends of the rail penetrating strip plates (7), and the third bolting holes (71) are kidney-shaped holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223024977.6U CN219327542U (en) | 2022-11-14 | 2022-11-14 | Existing tunnel repair structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223024977.6U CN219327542U (en) | 2022-11-14 | 2022-11-14 | Existing tunnel repair structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219327542U true CN219327542U (en) | 2023-07-11 |
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ID=87064768
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223024977.6U Active CN219327542U (en) | 2022-11-14 | 2022-11-14 | Existing tunnel repair structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219327542U (en) |
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2022
- 2022-11-14 CN CN202223024977.6U patent/CN219327542U/en active Active
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