CN217481307U - Grouting equipment for secondary grouting of shield tunnel - Google Patents
Grouting equipment for secondary grouting of shield tunnel Download PDFInfo
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- CN217481307U CN217481307U CN202221692432.XU CN202221692432U CN217481307U CN 217481307 U CN217481307 U CN 217481307U CN 202221692432 U CN202221692432 U CN 202221692432U CN 217481307 U CN217481307 U CN 217481307U
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- grouting
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Abstract
The utility model belongs to the technical field of tunnel grouting, in particular to a grouting device for secondary grouting of a shield tunnel, which comprises a grouting storage mechanism, a traveling mechanism and a grouting mechanism for discharging and injecting the slurry in the grouting storage mechanism into a required position; the running mechanism comprises a bottom plate and a running component arranged at the lower end of the bottom plate, the slurry storage mechanism comprises a slurry storage tank, and the slurry storage tank is detachably connected with the bottom plate; the grouting mechanism comprises a grouting pipe communicated with the grout storage box, the grout outlet end of the grouting pipe is connected with a connecting joint, and the connecting joint is cylindrical and is detachably connected with the shield segment; the shield structure comprises a shield structure pipe piece, a connecting joint, a shield structure, a first limiting component, a second limiting component, a first limiting component, a second limiting component and a second limiting component. Adopt the utility model discloses a problem that the attach fitting is convenient for install and remove can be solved to the scheme.
Description
Technical Field
The utility model belongs to the technical field of the tunnel slip casting, concretely relates to shield tunnel secondary slip casting is with slip casting equipment.
Background
The shield tunnel construction technology has been more and more widely applied to tunnel engineering due to the characteristics of high construction efficiency and small disturbance to the surrounding environment. The shield constructs the machine and in the excavation tunnel in-process, accomplishes the support of assembling of section of jurisdiction gradually, because there is the clearance between section of jurisdiction and stratum, consequently need utilize grouting technique shutoff clearance.
Synchronous grouting refers to synchronous grouting to gaps in the forward propelling process of the tunnel, and when the control effect of synchronous grouting on stratum settlement is poor, secondary grouting needs to be performed to the stratum. The secondary grouting is a grouting method for injecting cement paste and water glass paste into the stratum around the duct piece for secondary plugging by utilizing a preset grouting hole on the duct piece, has important significance for shield method tunnel excavation engineering, can effectively plug the gaps around the duct piece, can also effectively control the floating of the duct piece, and ensures the construction safety.
Among the prior art, through the grout hole connection of predetermineeing on slip casting pipeline and the section of jurisdiction during secondary slip casting, can carry the thick liquid of secondary slip casting to the section of jurisdiction outside through the slip casting pipeline, the slip casting pipeline is generally through attach fitting and slip casting hole assembly, among the prior art, the attach fitting is direct threaded connection usually in the slip casting hole, for example, patent CN201922378065.0 discloses a novel secondary slip casting structure for shield tunnel, set up the external screw thread through the shaping on the front end outer wall at secondary slip casting head, cooperate through the external screw thread and the hole for hoist (the slip casting hole) inner wall of tunnel segment.
The direct and grouting hole thread assembly of the connecting joint has the following problems: have certain pressure to the slip casting pipeline during slip casting, especially secondary slip casting is from the upper end of section of jurisdiction, lower extreme slip casting usually, and attach fitting receives the pressure of slip casting and the action of gravity of self, and especially connect the attach fitting in the section of jurisdiction upper end, receives downward effort great, and the screw thread receives and damages easily along its axial power.
SUMMERY OF THE UTILITY MODEL
Not enough to exist among the prior art, the utility model provides a shield tunnel secondary slip casting equipment for slip casting to solve the pressure that coupling receives the slip casting and the action of gravity of self, the screw thread receives along the easy problem of damaging of its axial power.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the grouting equipment for secondary grouting of the shield tunnel comprises a grouting storage mechanism, a travelling mechanism and a grouting mechanism, wherein the grouting mechanism is used for discharging and injecting slurry in the grouting storage mechanism into a required position; the running mechanism comprises a bottom plate and a running component arranged at the lower end of the bottom plate, the slurry storage mechanism comprises a slurry storage tank, and the slurry storage tank is detachably connected with the bottom plate; the grouting mechanism comprises a grouting pipe communicated with the grout storage box, the grout outlet end of the grouting pipe is connected with a connecting joint, and the connecting joint is cylindrical and is detachably connected with the shield segment; the connecting joint one end is used for stretching out the shield structure section of jurisdiction outside and is equipped with first spacing subassembly, and the connecting joint other end is located the shield structure section of jurisdiction inboard and is equipped with the spacing subassembly of second, and first spacing subassembly, the spacing subassembly of second block respectively in the shield structure section of jurisdiction outside, inboard carry on spacingly.
Compared with the prior art, the utility model discloses following beneficial effect has:
through the setting of first spacing subassembly and the spacing subassembly of second, with the attach fitting card on the shield pipe piece, share the pressure or the gravity that the attach fitting axial bore, reduce the damage of attach fitting to a certain extent, and through the restriction of first spacing subassembly and the spacing subassembly of second to attach fitting, avoid the attach fitting to take place axial motion in the use.
Remove in the tunnel through running gear, be convenient for carry out the secondary slip casting in the different positions in tunnel, the connection can be dismantled with the storage thick liquid case to the bottom plate, only need be connected to the bottom plate with current storage thick liquid case and can use, will store up the thick liquid case integration on the bottom plate, the slip casting work is accomplished at any time to the different positions in the tunnel of being more convenient for.
Drawings
Fig. 1 is a schematic view of the overall structure of the embodiment of the present invention.
Fig. 2 is an enlarged view of a portion a in fig. 1.
In the figure: 1. a duct piece; 2. a slurry storage tank; 3. a base plate; 4. a traveling wheel; 5. a connecting rod; 6. an axial flow pump; 7. a pulp outlet pipe; 8. a grouting pipe; 9. connecting a joint; 10. a slider; 11. a slide bar; 12. pressing the ring; 13. a pressing rod; 14. a limiting ring; 15. a slide hole; 16. a chute.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings, and specific embodiments will be given.
As shown in fig. 1, the grouting equipment for secondary grouting of the shield tunnel comprises a grout storage mechanism, a traveling mechanism and a grouting mechanism for discharging and injecting grout in the grout storage mechanism to a required position.
Running gear includes bottom plate 3 and installs the walking subassembly at 3 lower extremes of bottom plate, and the setting of walking subassembly and bottom plate 3 can refer to the shallow among the prior art and set up, as long as make bottom plate 3 can move in the tunnel that shield constructs section of jurisdiction 1 and build can, in this embodiment, the walking subassembly is including rotating walking wheel 4 of connecting at 3 lower extremes of bottom plate, in the actual design process, can select to have among the prior art from the walking wheel 4 of the structure of stopping.
Store up thick liquid mechanism and include storing up thick liquid case 2, store up thick liquid case 2 and bottom plate 3 and can dismantle the connection, it is specific, store up thick liquid case 2 lower extreme one side and install walking wheel 4, the opposite side is fixed with the connecting block, use shown direction in figure 1 as an example, store up thick liquid case 2 lower extreme left side and install walking wheel 4, store up thick liquid case 2 lower extreme right side and be fixed with the connecting block, be fixed with connecting rod 5 on the connecting block, connecting rod 5 and bottom plate 3 can dismantle the connection, connecting rod 5 and bottom plate 3's connected mode chooses for use conventional connected mode among the prior art, for example bolted connection, also can refer to the connected mode setting that pulls the locomotive and drags the carriage among the trailer among the prior art.
Slip casting mechanism includes the slip casting pipe 8 with the storage box 2 intercommunication, slip casting mechanism still includes axial-flow pump 6, axial-flow pump 6's feed end and storage box 2 intercommunication, it is concrete, axial-flow pump 6's feed end passes through pipe joint and storage box 2 and connects, axial-flow pump 6's discharge end and slip casting pipe 8 intercommunication, it is concrete, axial-flow pump 6's discharge end intercommunication has out thick liquid pipe 7, it has a plurality of slip casting pipes 8 to communicate on the play thick liquid pipe 7, show two slip casting pipes 8 in figure 1, one of them slip casting pipe 8 is used for being connected with the upper end of shield structure section of jurisdiction 1, another slip casting pipe 8 is used for being connected with the lower extreme of shield structure section of jurisdiction 1.
As shown in the combined figure 2, the slurry outlet end of the grouting pipe 8 is connected with a connecting joint 9, the connecting joint 9 is cylindrical and can be detachably connected with the shield segment 1, and particularly, the connecting joint 9 is assembled on the shield segment 1 in a threaded mode. The one end of 9 connecting joints is used for stretching out the shield and constructs the section of jurisdiction 1 outside and be equipped with first spacing subassembly, and the other end of 9 connecting joints is located the shield and constructs the section of jurisdiction 1 inboard and be equipped with the spacing subassembly of second, and the spacing subassembly of first spacing subassembly, second is blocked respectively in the outside of shield section of jurisdiction 1, inboard and is carried on spacingly.
The first limiting assembly comprises a plurality of sliding holes 15 formed in the circumferential direction of the connecting joint 9, the axes of the sliding holes 15 are parallel to the axes of the connecting joint 9, two sliding holes 15 are distributed in the radial direction of the connecting joint 9 in fig. 2, a sliding rod 11 is connected in the sliding holes 15 in a sliding mode along the axial direction of the sliding holes, a plurality of sliding grooves 16 which correspond to and are communicated with the sliding holes 15 are formed in the connecting joint 9 in the circumferential direction, sliding blocks 10 are connected in the sliding grooves 16 in a sliding mode, the sliding rod 11 is inserted into the sliding grooves 16 to limit the sliding blocks 10, specifically, the sliding blocks 10 are pushed to move in the sliding grooves 16 in order to facilitate the insertion of the sliding rods 11 into the sliding grooves 16, for example, the upper ends of the sliding rods 11 are matched with one end wedge surfaces of the sliding blocks 10 in the sliding grooves 16, and the sliding rods 11 move upwards to push the sliding blocks 10 to the outer side of the connecting joint 9. Install the piece that resets that is used for supplying slider 10 to reset in the spout 16, it is concrete, in this embodiment, the piece that resets chooses for use the magnetic path (not shown in the figure) of fixing at the 16 inner walls of spout, slider 10 chooses for use the iron material preparation or is fixed with the magnetic sheet with magnetic path inter attraction on slider 10, through the attraction effect of magnetic path to slider 10, after slide bar 11 slides downwards and withdraws from spout 16, slider 10 receives the attraction effect and withdraws in spout 16, the length of slider 10 is less than or equal to the length of spout 16, so that after slider 10 withdraws in spout 16, can not hinder connecting joint 9 business turn over shield structure section of jurisdiction 1.
The grouting pipe 8 is in threaded connection with a pressing ring 12, and the end face of the pressing ring 12 abuts against the sliding rod 11. The second limiting assembly comprises a limiting ring 14 which is connected to the outer wall of the connecting joint 9 in an axial sliding mode along the connecting joint 9 and a plurality of pressing rods 13 which are fixed to the pressing ring 12 in the circumferential direction along the pressing ring 12, a ring groove for allowing the pressing rods 13 to slide is formed in the limiting ring 14, and the limiting ring 14 is used for abutting against the inner side of the shield segment 1.
During the specific use, install attach fitting 9 in the slip casting of shield structure section of jurisdiction 1 downtheholely, then adopt prior art to connect the tip and the attach fitting 9 of slip casting pipe 8, optional detachable connection's mode, also can direct welded fastening. Then, the pressing ring 12 is rotated, the pressing ring 12 pushes the sliding rod 11 to move, the sliding rod 11 slides in the sliding hole 15, when the sliding rod 11 is inserted into the sliding groove 16, the sliding rod 11 pushes the sliding block 10 in the sliding groove 16 to extend out of the sliding groove 16, so that the sliding block 10 is clamped on the outer side of the shield segment 1, meanwhile, the pressing ring 12 drives the pressing rod 13 to move, the pressing rod 13 pushes the limiting ring 14 to slide, and the limiting ring 14 abuts against the inner side of the shield segment 1. Through the setting of slider 10 and spacing ring 14, block respectively in the outside and the inboard of shield structure section of jurisdiction 1, block attach fitting 9 on shield structure section of jurisdiction 1, share the pressure or the gravity that attach fitting 9 axial bore, further avoid attach fitting 9 to take place axial motion simultaneously.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.
Claims (7)
1. Grouting equipment for secondary grouting of shield tunnel, which is characterized in that: the slurry storage mechanism comprises a slurry storage mechanism, a traveling mechanism and a grouting mechanism, wherein the grouting mechanism is used for discharging and injecting slurry in the slurry storage mechanism into a required position; the running mechanism comprises a bottom plate and a running component arranged at the lower end of the bottom plate, the slurry storage mechanism comprises a slurry storage tank, and the slurry storage tank is detachably connected with the bottom plate; the grouting mechanism comprises a grouting pipe communicated with the grout storage box, the grout outlet end of the grouting pipe is connected with a connecting joint, and the connecting joint is cylindrical and is detachably connected with the shield segment; the shield structure comprises a shield structure pipe piece, a connecting joint, a shield structure, a first limiting component, a second limiting component, a first limiting component, a second limiting component and a second limiting component.
2. The grouting equipment for secondary grouting of a shield tunnel according to claim 1, characterized in that: the first limiting assembly comprises a plurality of sliding holes formed in the circumferential direction of the connecting joint, the axes of the sliding holes are parallel to the axes of the connecting joint, sliding rods are connected in the sliding holes in a sliding mode along the axial direction of the sliding holes, a plurality of sliding grooves which correspond to the sliding holes and are communicated with the sliding holes are formed in the connecting joint in the circumferential direction, sliding blocks are connected in the sliding grooves in a sliding mode, and the sliding rods are inserted into the sliding grooves to limit the sliding blocks.
3. The grouting equipment for secondary grouting of a shield tunnel according to claim 2, characterized in that: and a reset piece for resetting the sliding block is installed in the sliding groove.
4. The grouting equipment for secondary grouting of a shield tunnel according to claim 2, characterized in that: and the grouting pipe is connected with a pressing ring in a threaded manner, and the end face of the pressing ring is abutted against the sliding rod.
5. The grouting equipment for secondary grouting of a shield tunnel according to claim 4, characterized in that: the second limiting assembly comprises a limiting ring which is connected to the outer wall of the connecting joint in an axial sliding mode along the connecting joint and a plurality of pressing rods which are fixed to the pressing ring in the circumferential direction along the pressing ring, a ring groove for enabling the pressing rods to slide is formed in the limiting ring, and the limiting ring is used for abutting against the inner side of the shield segment.
6. The grouting equipment for secondary grouting of a shield tunnel according to claim 1, characterized in that: the walking wheel is installed to storage case lower extreme one side, and the opposite side is fixed with the connecting block, is fixed with the connecting rod on the connecting block, and the connection can be dismantled to connecting rod and bottom plate.
7. The grouting equipment for secondary grouting of a shield tunnel according to claim 1, characterized in that: the grouting mechanism further comprises an axial flow pump, the feeding end of the axial flow pump is communicated with the slurry storage box, and the discharging end of the axial flow pump is communicated with the grouting pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221692432.XU CN217481307U (en) | 2022-06-30 | 2022-06-30 | Grouting equipment for secondary grouting of shield tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221692432.XU CN217481307U (en) | 2022-06-30 | 2022-06-30 | Grouting equipment for secondary grouting of shield tunnel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217481307U true CN217481307U (en) | 2022-09-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221692432.XU Active CN217481307U (en) | 2022-06-30 | 2022-06-30 | Grouting equipment for secondary grouting of shield tunnel |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117108317A (en) * | 2023-10-25 | 2023-11-24 | 焦作煤业集团赵固（新乡）能源有限责任公司 | Grouting equipment is consolidated in mine tunnel |
-
2022
- 2022-06-30 CN CN202221692432.XU patent/CN217481307U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117108317A (en) * | 2023-10-25 | 2023-11-24 | 焦作煤业集团赵固（新乡）能源有限责任公司 | Grouting equipment is consolidated in mine tunnel |
| CN117108317B (en) * | 2023-10-25 | 2024-01-30 | 焦作煤业集团赵固（新乡）能源有限责任公司 | Grouting equipment is consolidated in mine tunnel |
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