CN212225236U - Shield tunnel entrance to a cave reinforced structure - Google Patents
Shield tunnel entrance to a cave reinforced structure Download PDFInfo
- Publication number
- CN212225236U CN212225236U CN202021385882.5U CN202021385882U CN212225236U CN 212225236 U CN212225236 U CN 212225236U CN 202021385882 U CN202021385882 U CN 202021385882U CN 212225236 U CN212225236 U CN 212225236U
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- reinforced structure
- shield tunnel
- structure body
- supporting seat
- cave
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Abstract
The utility model belongs to the technical field of the tunnel is consolidated, especially, relate to a shield constructs tunnel entrance to a cave reinforced structure, including the reinforced structure body, the inboard of reinforced structure body is equipped with the multiunit gusset plate, the outside of reinforced structure body is equipped with the spliced pole, gusset plate and spliced pole cooperation set up, the reinforced structure body is equipped with the base, base fixedly connected with pneumatic cylinder, the pneumatic cylinder intercommunication is provided with the supporting seat, the one end and the base fixed connection of supporting seat, the other end of supporting seat can be dismantled and be connected with the multiunit telescopic link. The utility model discloses a set up a shield tunnel entrance to a cave reinforced structure, effectively improve the limit bearing capacity and the rigidity of shield tunnel entrance to a cave for the staff can realize the quick reinforcement of tunnel under the harsh condition such as the space is narrow, the allowable consolidation time is short, improves the reinforcement efficiency of tunnel entrance to a cave, shortens the construction period of tunnel entrance to a cave reinforcement work, reduces the reinforced engineering cost of tunnel, and suitable scope promotes.
Description
Technical Field
The utility model belongs to the technical field of the tunnel is consolidated, especially, relate to a shield tunnel entrance to a cave reinforced structure.
Background
The shield method is a fully mechanical construction method in the construction of the subsurface excavation method, which is a mechanical construction method for pushing a shield machine in the ground, preventing collapse into a tunnel by using a shield shell and duct pieces to support surrounding rocks around, excavating a soil body in front of an excavation surface by using a cutting device, transporting out of the tunnel by using an unearthing machine, pressing and jacking at the rear part by using a jack, and assembling precast concrete duct pieces to form a tunnel structure. With the continuous popularization of shield tunnels, the construction requirements of shield tunnels are continuously increased, and meanwhile, the defects of the shield tunnels in the actual construction process are urgently needed to be perfected and treated.
In the prior art, a shield tunnel structure is a typical assembly structure, and a concrete precast block is longitudinally and transversely connected by adopting a high-strength bolt to form a structural body with bearing capacity. However, due to the complex underground conditions, the changes of underground water level and the like easily cause influence on the external load of the shield structure, so that the shield tunnel structure is deformed, the aging and other problems of materials and structures are considered, the shield tunnel portal is often required to be reinforced, the normal construction of the tunnel is ensured, but the stability of the existing reinforcing structure is poor, a large amount of manpower and material resources are required to be consumed in the reinforcement work, the reinforcement efficiency of the tunnel portal is reduced, the tunnel construction period is prolonged, and the engineering cost of the tunnel is improved.
Therefore, a reinforcing structure for the shield tunnel portal is provided to solve the problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims at the above problem, the shield tunnel entrance to a cave reinforced structure that the high efficiency of convenient operation reinforcement has stronger steadiness simultaneously that provides.
In order to achieve the above purpose, the utility model adopts the following technical proposal:
the utility model provides a shield tunnel entrance to a cave reinforced structure, includes the reinforced structure body, the inboard of reinforced structure body is equipped with the multiunit gusset plate, the outside of reinforced structure body is equipped with the spliced pole, gusset plate and spliced pole cooperation setting, the reinforced structure body is equipped with the base, base fixedly connected with pneumatic cylinder, the pneumatic cylinder intercommunication is provided with the supporting seat, the one end and the base fixed connection of supporting seat, the other end of supporting seat can be dismantled and be connected with the multiunit telescopic link, the one end and the gusset plate cooperation connection of supporting seat are kept away from to the telescopic link.
In foretell shield tunnel entrance to a cave reinforced structure, the reinforced structure body includes mortar layer, well hollow layer, steel deck and fibrous layer, the reinforced structure body is equipped with the multiunit and perforates, it connects to perforate and the telescopic link cooperation.
In the reinforcing structure for the shield tunnel portal, the reinforcing plates are of arc structures, the reinforcing plates are uniformly arranged at one end, close to the fiber layer, of the reinforcing structure body, and pressure sensors are arranged between the adjacent reinforcing plates.
In foretell shield tunnel entrance to a cave reinforced structure, the spliced pole passes through mounting panel and mortar layer fixed connection, the one end that the mounting panel is close to the mortar layer is equipped with the recess, telescopic link and recess cooperation are connected.
In the reinforcing structure for the shield tunnel portal, the telescopic rod comprises a sleeve and a movable rod, one end of the movable rod is connected with the sleeve in a sliding mode through a sealing plate, and the other end of the movable rod is connected with the groove in a matched mode through a through hole.
In foretell shield tunnel entrance to a cave reinforced structure, the one end that the supporting seat was kept away from to the movable rod is equipped with the injecting glue import, the one end that the movable rod is close to the spliced pole is equipped with the injecting glue export, injecting glue export and hollow layer intercommunication setting.
In foretell shield tunnel entrance to a cave reinforced structure, the supporting seat is equipped with the multiunit connecting hole, sleeve and connecting hole threaded connection, the movable rod passes through clamp plate and gusset plate swing joint, clamp plate and perforation cooperation set up, the clamp plate adopts the arc structure.
In foretell shield tunnel entrance to a cave reinforced structure, supporting seat fixedly connected with hydraulic pressure dish, hydraulic pressure dish and pneumatic cylinder intercommunication set up, hydraulic pressure dish is equipped with the multiunit seal groove, the sleeve passes through rubber pad and seal groove cooperation connection.
In foretell shield tunnel entrance to a cave reinforced structure, the sleeve is close to the one end of hydraulic disc and is equipped with the spacing groove, the supporting seat is equipped with spacing bolt, spacing bolt passes supporting seat and spacing groove threaded connection.
In foretell shield tunnel entrance to a cave reinforced structure, one of them is a set of telescopic link fixedly connected with support, the support symmetry sets up in reinforced structure body both sides, the fibrous layer cooperation of support and reinforced structure body is connected, the support is equipped with the skid resistant course.
Compared with the prior art, this shield tunnel entrance to a cave reinforced structure's advantage lies in:
1. the utility model discloses a set up composite forming's reinforced structure to shield tunnel entrance to a cave, effectively improve the limit bearing capacity and the rigidity of shield tunnel entrance to a cave for the staff can realize the quick reinforcement of tunnel under the harsh condition such as the space is narrow, the allowable consolidation time is short, improves the reinforcement efficiency of tunnel entrance to a cave, shortens the construction period of tunnel entrance to a cave reinforcement work, reduces the reinforced engineering cost of tunnel, and suitable scope promotes.
2. The utility model discloses a set up the hydraulic pressure supporting seat to shield structure tunnel entrance to a cave for the multiunit telescopic link can carry out support work to the reinforced structure body simultaneously, effectively improves the reinforcement efficiency of tunnel entrance to a cave, and the supporting seat can reduce reinforced structure's displacement degree to a certain extent at the in-process that hydraulic pressure supported simultaneously, improves the reinforcement effect of tunnel entrance to a cave, increases the practicality of device.
3. The utility model discloses a can dismantle the telescopic link of connection to the supporting seat setting, effective convenient staff's installation operation reduces the intensity of labour of staff at tunnel entrance to a cave reinforcement in-process, improves the efficiency of construction, increases the convenience that the device used.
4. The utility model discloses a set up the injecting glue passageway to the telescopic link for the telescopic link can be to the hollow layer of reinforced structure body filling epoxy in carrying out the support work, and cooperation mortar layer, steel deck and fibrous layer composite forming effectively improve reinforced structure's reinforcement efficiency, increase reinforced structure's reinforcement quality, improve the functionality of device.
Drawings
Fig. 1 is an external structural schematic view of a reinforcing structure for a shield tunnel portal according to the present invention;
fig. 2 is an internal structural schematic view of a reinforcing structure for a shield tunnel portal according to the present invention;
FIG. 3 is an enlarged schematic view at A in FIG. 2;
fig. 4 is a schematic structural view of a reinforcing structure body in a reinforcing structure of a shield tunnel portal according to the present invention;
fig. 5 is a schematic structural view of a hydraulic disc in the reinforcing structure of the shield tunnel portal provided by the present invention;
fig. 6 is the utility model provides a pair of shield tunnel entrance to a cave reinforced structure in telescopic link's structural schematic.
In the figure, 1 is a reinforced structure body, 11 is a mortar layer, 12 is a hollow layer, 13 is a steel plate layer, 14 is a fiber layer, 15 is a perforation, 2 is a reinforcing plate, 3 is a connecting column, 31 is a mounting plate, 32 is a groove, 4 is a base, 5 is a hydraulic cylinder, 6 is a supporting seat, 61 is a connecting hole, 62 is a hydraulic pressure plate, 621 is a sealing groove, 622 is a rubber pad, 63 is a limiting bolt, 7 is an expansion rod, 71 is a sleeve, 711 is a limiting groove, 72 is a movable rod, 721 is a glue injection inlet, 722 is a glue injection outlet, 73 is a sealing plate.
Detailed Description
The following examples are for illustrative purposes only and are not intended to limit the scope of the present invention.
As shown in fig. 1 to 6, a reinforcing structure for a shield tunnel portal includes a reinforcing structure body 1, and it should be noted that the reinforcing structure body 1 includes a mortar layer 11, a hollow layer 12, a steel plate layer 13 and a fiber layer 14, and the ultimate bearing capacity and rigidity of the shield tunnel portal are improved by pouring epoxy resin for composite molding, so that a worker can quickly reinforce the tunnel under severe conditions of narrow space, short allowable reinforcing time and the like, and the reinforcing efficiency of the tunnel portal is improved.
The inboard of reinforced structure body 1 is equipped with multiunit gusset plate 2, and it should be noted that, gusset plate 2 adopts the arc structure, and gusset plate 2 evenly sets up at reinforced structure body 1 and is close to fibrous layer 14 one end, is equipped with pressure sensor 8 between the adjacent gusset plate 2, and pressure sensor 8 adopts PT124B-251\250 type tunnel special pressure sensor for the real-time stress distribution situation of monitoring reinforced structure body 1 reinforcing plate 2 in the supporting process.
The outside of reinforced structure body 1 is equipped with spliced pole 3, and gusset plate 2 and the cooperation of spliced pole 3 set up, and it needs to explain that, 3 fixedly connected with mounting panels 31 of spliced pole, mounting panels 31 pass through bolt and 11 fixed connection on mortar layer, and spliced pole 3 carries out pre-buried fixed before reinforced structure body 1 connects the installation, improves the reinforcement effect of shield tunnel entrance to a cave.
The reinforced structure body 1 is equipped with base 4, and 4 fixedly connected with pneumatic cylinders 5 of base, 5 intercommunications of pneumatic cylinder are provided with supporting seat 6, and it needs to be noted that, base 4 carries out fixed connection through bolt and tunnel entrance to a cave bottom surface, guarantees that supporting seat 6 carries out the steadiness in the work.
One end and the base 4 fixed connection of supporting seat 6, the other end of supporting seat 6 can be dismantled and be connected with multiunit telescopic link 7, it needs to explain that telescopic link 7 includes sleeve 71 and movable rod 72, and closing plate 73 and sleeve 71 sliding connection are passed through to the one end that is close to supporting seat 6 of movable rod 72, and supporting seat 6 is equipped with multiunit connecting hole 61, sleeve 71 and connecting hole 61 threaded connection, and the staff of being convenient for is fixed to the connection of telescopic link 7.
Specific 6 fixedly connected with hydraulic pressure dishes 62 of supporting seat, hydraulic pressure dish 62 and the setting of 5 intercommunications of pneumatic cylinder, hydraulic pressure dish 62 is equipped with multiunit seal groove 621, sleeve 71 passes through rubber pad 622 and seal groove 621 cooperation is connected, it is worth mentioning, improve the leakproofness between sleeve 71 and hydraulic pressure dish 62, pneumatic cylinder 5 is used for hydraulic supply work in the hydraulic pressure dish 62, make telescopic link 7 support the reinforcement under hydraulic pressure work, supporting seat 6 can reduce reinforced structure's displacement degree to a certain extent at the in-process that hydraulic pressure supported, improve the steadiness among the shield tunnel entrance to a cave reinforcement process, and then improve the reinforcement effect of tunnel entrance to a cave.
More specifically, the sleeve 71 is close to the one end of hydraulic disc 62 and is equipped with spacing groove 711, supporting seat 6 is equipped with spacing bolt 63, spacing bolt 63 passes supporting seat 6 and spacing groove 711 threaded connection, make the staff carry out spacing fixed to sleeve 71 again after carrying out threaded connection with sleeve 71 and connecting hole 61, improve the stability of connecting between telescopic link 7 and the supporting seat 6, can dismantle the effective convenient staff's of telescopic link 7 of connection installation operation, reduce the intensity of labour of staff at tunnel entrance to a cave reinforcement in-process, and the construction efficiency is improved, and the convenience of device use is increased.
Wherein a set of telescopic link 7 fixedly connected with support 9, the symmetry of support 9 sets up in 1 both sides of reinforced structure body, and support 9 and reinforced structure body 1's fibrous layer 14 cooperation are connected, and support 9 is equipped with the skid resistant course for telescopic link 7 can be supported the both sides that reinforced structure body 1 is close to the bottom surface, improves the support effect of device to tunnel entrance to a cave both sides.
One end of the telescopic rod 7 far away from the supporting seat 6 is connected with the reinforcing plate 2 in a matching way.
Specifically, the one end that mounting panel 31 is close to mortar layer 11 is equipped with recess 32, and the one end that reinforced structure body 1 is close to gusset plate 2 is equipped with perforation 15, and the other end of movable rod 72 is connected through perforation 15 and recess 32 cooperation for telescopic link 7 carries out the outrigger through perforation 15 to recess 32 in carrying out the support work, improves the reinforcement effect of shield tunnel entrance to a cave.
More specifically, the one end that supporting seat 6 was kept away from to movable rod 72 is equipped with injecting glue import 721, the one end that movable rod 72 is close to spliced pole 3 is equipped with injecting glue export 722, injecting glue export 722 and hollow layer 12 intercommunication set up, make telescopic link 7 can pour into epoxy cooperation mortar layer 11 in hollow layer 12 in carrying out the supporting operation, hollow layer 12, steel sheet layer 13 and the compound shaping of fibrous layer 14, the reinforcement efficiency in shield tunnel is improved, movable rod 72 passes through clamp plate 74 and gusset plate 2 swing joint, clamp plate 74 and perforation 15 cooperation set up, clamp plate 74 adopts the arc structure, can support at movable rod 72, the in-process of pouring seals work to hollow layer 12, cooperate spliced pole 3 to support the reinforcement work to the inside and outside both sides of reinforced structure body 1 simultaneously, the stability of device in the strengthening process is improved.
Now, the operation principle of the present invention is described as follows:
the utility model discloses during the use, it is complicated because the underground condition when the shield tunnel, change such as ground water level causes the influence to the outer load of shield structure easily, thereby make shield tunnel structure produce and warp, need consolidate the during operation to the shield tunnel entrance to a cave, install base 4 and the bottom surface of shield tunnel entrance to a cave fixedly, the staff is according to the position of supporting seat 6 with spliced pole 3 pre-buried in shield tunnel entrance to a cave department earlier, connect at reinforced structure body 1 and spliced pole 3, fix reinforced plate 2 and reinforced structure body 1 and spliced pole 3's mounting panel through the bolt, reinforced plate 2 installs the back and distributes pressure sensor 8 between adjacent reinforced plate 2 position, a real-time stress distribution for monitoring reinforced plate 2 strengthening process, accomplish reinforced structure body 1 preliminary preparation work. The staff carries out threaded connection with sleeve 71 of telescopic link 7 and connecting hole 61 of supporting seat 6, and spacing bolt 63 passes supporting seat 6 and the spacing groove 711 of sleeve 71 and carries out spacing fixed, and the sealing groove 621 sealing connection of rubber pad 622 and hydraulic disc 62 is passed through to the one end of sleeve 71 this moment, and the other end of sleeve 71 passes through closing plate 73 and movable rod 72 sliding connection, accomplishes reinforced structure body 1 strutting arrangement's installation work. Start hydraulic cylinder 5, make the liquid in the hydraulic cylinder 5 fill hydraulic pressure dish 62 and then promote telescopic link 7's movable rod 72 and sleeve 71 slide and stretch out, the movable rod 72 cooperates at the in-process that constantly stretches out and the perforation 15 of reinforced structure body 1, the recess 32 until the top of movable rod 72 and mounting panel 31 supports, the clamp plate 74 of movable rod 72 fixed connection seals perforation 15 this moment, clamp plate 74 carries out secondary support work through gusset plate 2 to reinforced structure body 1, wherein a set of telescopic link 7 supports the both ends of reinforced structure body 1 through support 9, accomplish reinforced structure's support work. The reinforced structure body pours into epoxy cooperation mortar layer 11 in cavity layer 12 through injecting glue import 721 behind the outrigger, cavity layer 12, steel sheet layer 13 and fibrous layer 14 make 1 composite forming of reinforced structure body, improve the reinforcement efficiency of shield tunnel entrance to a cave, 8 real-time supervision gusset plate 2's of pressure sensor stress distribution situation among the strengthening process, guarantee the normal work of reinforced structure body 1, make telescopic link 7 withdraw through pneumatic cylinder 5 after accomplishing the reinforcement work, the subsequent operation of the staff of being convenient for.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (10)
1. The utility model provides a shield tunnel entrance to a cave reinforced structure, includes reinforced structure body (1), its characterized in that, the inboard of reinforced structure body (1) is equipped with multiunit gusset plate (2), the outside of reinforced structure body (1) is equipped with spliced pole (3), gusset plate (2) and spliced pole (3) cooperation set up, reinforced structure body (1) is equipped with base (4), base (4) fixedly connected with pneumatic cylinder (5), pneumatic cylinder (5) intercommunication is provided with supporting seat (6), the one end and the base (4) fixed connection of supporting seat (6), the other end of supporting seat (6) can be dismantled and be connected with multiunit telescopic link (7), the one end and gusset plate (2) cooperation connection of supporting seat (6) are kept away from in telescopic link (7).
2. The shield tunnel portal reinforcement structure of claim 1, characterized in that the reinforcement structure body (1) comprises a mortar layer (11), a hollow layer (12), a steel plate layer (13) and a fiber layer (14), the reinforcement structure body (1) is provided with a plurality of groups of perforations (15), and the perforations (15) are connected with the telescopic rods (7) in a matching manner.
3. The reinforcing structure for the shield tunnel portal according to claim 2, wherein the reinforcing plates (2) are arc-shaped, the reinforcing plates (2) are uniformly arranged at one end of the reinforcing structure body (1) close to the fiber layer (14), and the pressure sensors (8) are arranged between the adjacent reinforcing plates (2).
4. The reinforcing structure for the shield tunnel portal according to claim 2, wherein the connecting column (3) is fixedly connected with the mortar layer (11) through a mounting plate (31), a groove (32) is formed in one end, close to the mortar layer (11), of the mounting plate (31), and the telescopic rod (7) is connected with the groove (32) in a matched mode.
5. The shield tunnel portal reinforcement structure of claim 4, characterized in that the expansion link (7) comprises a sleeve (71) and a movable rod (72), one end of the movable rod (72) is slidably connected with the sleeve (71) through a sealing plate (73), and the other end of the movable rod (72) is connected with the groove (32) through a through hole (15).
6. The reinforcing structure for the shield tunnel portal according to claim 5, wherein one end of the movable rod (72) far away from the supporting seat (6) is provided with a glue injection inlet (721), one end of the movable rod (72) close to the connecting column (3) is provided with a glue injection outlet (722), and the glue injection outlet (722) is communicated with the hollow layer (12).
7. The reinforcing structure for the shield tunnel portal according to claim 5, wherein the supporting seat (6) is provided with a plurality of groups of connecting holes (61), the sleeve (71) is in threaded connection with the connecting holes (61), the movable rod (72) is movably connected with the reinforcing plate (2) through a pressing plate (74), the pressing plate (74) is matched with the through holes (15), and the pressing plate (74) is of an arc-shaped structure.
8. The reinforcing structure of the shield tunnel portal according to claim 5, wherein the supporting seat (6) is fixedly connected with a hydraulic plate (62), the hydraulic plate (62) is communicated with the hydraulic cylinder (5), the hydraulic plate (62) is provided with a plurality of groups of sealing grooves (621), and the sleeve (71) is connected with the sealing grooves (621) through a rubber pad (622) in a matching manner.
9. The shield tunnel portal reinforcement structure of claim 8, characterized in that, one end of the sleeve (71) close to the hydraulic plate (62) is provided with a limiting groove (711), the support seat (6) is provided with a limiting bolt (63), and the limiting bolt (63) passes through the support seat (6) and is in threaded connection with the limiting groove (711).
10. The reinforcing structure for the shield tunnel portal according to claim 2, wherein a set of the telescopic rods (7) is fixedly connected with a support (9), the supports (9) are symmetrically arranged on two sides of the reinforcing structure body (1), the support (9) is connected with the fiber layer (14) of the reinforcing structure body (1) in a matching manner, and the support (9) is provided with an anti-slip layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021385882.5U CN212225236U (en) | 2020-07-15 | 2020-07-15 | Shield tunnel entrance to a cave reinforced structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021385882.5U CN212225236U (en) | 2020-07-15 | 2020-07-15 | Shield tunnel entrance to a cave reinforced structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212225236U true CN212225236U (en) | 2020-12-25 |
Family
ID=73911883
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021385882.5U Expired - Fee Related CN212225236U (en) | 2020-07-15 | 2020-07-15 | Shield tunnel entrance to a cave reinforced structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212225236U (en) |
-
2020
- 2020-07-15 CN CN202021385882.5U patent/CN212225236U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201225 |
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| CF01 | Termination of patent right due to non-payment of annual fee |