CN218991632U - Water stopping device for tunnel jacking pipe portal - Google Patents
Water stopping device for tunnel jacking pipe portal Download PDFInfo
- Publication number
- CN218991632U CN218991632U CN202320048462.5U CN202320048462U CN218991632U CN 218991632 U CN218991632 U CN 218991632U CN 202320048462 U CN202320048462 U CN 202320048462U CN 218991632 U CN218991632 U CN 218991632U
- Authority
- CN
- China
- Prior art keywords
- jacking
- tunnel
- portal
- water stop
- plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Landscapes
- Lining And Supports For Tunnels (AREA)
Abstract
The utility model provides a water stopping device for a tunnel jacking pipe portal, which comprises a pre-buried mounting ring and a plurality of water stopping components; the embedded mounting ring is embedded in the tunnel jacking pipe portal, and is provided with a grouting pressure relief pipeline for grouting and pressure relief; the water stopping components are respectively detachably connected with the embedded mounting ring, are circumferentially distributed on the embedded mounting ring and are mutually spliced, and a jacking station of the jacking pipe is formed between the water stopping components. The water stop device adopts an assembled spliced structure, so that the operation difficulty in limited spaces such as deep foundation pits can be greatly reduced, and the construction efficiency is improved. In addition, the water stopping device has good water stopping effect, thereby improving the construction quality.
Description
Technical Field
The utility model relates to the technical field of electric power construction, in particular to a water stopping device for a tunnel jacking pipe portal.
Background
Along with the continuous development of modern urban underground engineering, the pipe jacking method is widely applied to the construction of street crossing channels due to the advantages of small disturbance to the ground, short construction period, high civilized construction degree and the like. In the whole construction process of the pipe-jacking tunnel, ensuring that the starting tunnel portal has good sealing performance is an important research subject. If the sealing and water stopping effects of the starting tunnel portal are poor, a large amount of muddy water in the tunnel is overflowed, water and sand are gushed from the tunnel portal, and the ground surface is settled.
At present, the water stop device used for construction is subjected to on-site processing and welding according to the on-site situation and the outer diameter size of a machine head, and after a tunnel is penetrated, cutting and clearing are adopted or concrete is used for encapsulation and covering, so that the difficulty of operation in a limited space such as a deep foundation pit is increased, the construction efficiency is reduced, and the water stop device cannot be reused. In addition, the existing water stopping device also has the problems of poor water stopping effect and damage to the surface of the prefabricated pipe joint, and has larger safety risks and hidden quality hazards.
Disclosure of Invention
The utility model aims to overcome the defects and shortcomings in the prior art and provide a water stop device for a tunnel jacking pipe portal, which adopts an assembled and spliced structure, can greatly reduce the operation difficulty in limited spaces such as deep foundation pits and the like, and improves the construction efficiency. The utility model also provides a water stop device with good water stop effect for the tunnel jacking pipe portal, so that the construction quality is improved.
In order to achieve the above purpose, the utility model is realized by the following technical scheme: a sealing device for tunnel pipe-jacking portal, its characterized in that: the water stopping device comprises a pre-buried mounting ring and a plurality of water stopping components; the embedded mounting ring is embedded in the tunnel jacking pipe portal, and is provided with a grouting pressure relief pipeline for grouting and pressure relief; the water stopping components are respectively detachably connected with the embedded mounting ring, are circumferentially distributed on the embedded mounting ring and are mutually spliced, and a jacking station of the jacking pipe is formed between the water stopping components.
In the scheme, the water stop assemblies are detachably connected with the embedded mounting rings and can be spliced to form the jacking station, and when the jacking pipe is jacked in the jacking station, the water stop assemblies serve as the sealing water stop assemblies of the starting tunnel portal and can play a role in sealing. The water stopping device adopts an assembled spliced structure, does not need on-site processing and welding, does not need cutting and cleaning or concrete encapsulation and covering after the tunnel is communicated, can greatly reduce the operation difficulty in limited spaces such as deep foundation pits and the like, and improves the construction efficiency. In addition, the water stop assembly can be disassembled and reused, so that the construction use cost is reduced.
The embedded mounting ring of the water stop device is provided with a grouting pressure relief pipeline for grouting and pressure relief, and the grouting pressure relief pipeline has the following functions and good places: 1. in the initial stage of the tunnel pipe jacking machine head, when the water pressure in the tunnel pipe jacking portal is overlarge, the grouting pressure relief pipeline can be opened to relieve pressure, and the problem of reverse pushing of the tunnel pipe jacking machine head caused by overlarge water and soil pressure in front of the cutter head of the tunnel pipe jacking machine head is solved. 2. When the tunnel jacking pipe is penetrated, the tunnel jacking pipe portal of the starting working well can be subjected to secondary grouting reinforcement through the grouting pressure relief pipeline, so that the water stopping effect of the tunnel jacking pipe portal is enhanced.
Each water stop assembly comprises a framework, a front end pressing plate, a rear end pressing plate and an elastic plate; the front end pressing plate and the rear end pressing plate are respectively detachably connected with the framework; the elastic plates are detachably arranged between the front end pressing plate and the framework and between the rear end pressing plate and the framework respectively. The utility model uses the deformation pressing force of the elastic plate to block the gap between the tunnel portal and the jacking pipe, thereby achieving the effect of sealing the tunnel portal.
The elastic plate extends out of the framework and extends to the jacking station.
The elastic plate is a rubber plate.
Each water stop assembly further comprises an anti-overturning mechanism for preventing the elastic plate from overturning out in the jacking reverse direction of the jacking pipe; the anti-overturning mechanism is connected with the front end pressing plate.
The anti-overturning mechanism comprises a connecting plate and an anti-overturning plate; the connecting plate is connected with the front end pressing plate, and the anti-turnover plate is hinged with the connecting plate.
The anti-turnover plate extends out of the framework and is shorter than the elastic plate.
The two ends of the front end pressing plate and the rear end pressing plate are respectively provided with a clamping part and a clamping position for splicing. The design can enable the water stop assembly to be spliced seamlessly.
After the water stop assemblies are spliced, two rings of sealing rings are formed by the elastic plates between the front end pressing plate and the framework and between the rear end pressing plate and the framework.
The embedded mounting ring is formed by connecting an annular body and a wall body; the annular body is embedded in the tunnel jacking pipe portal, and the wall body is connected with the outer wall of the tunnel jacking pipe portal; the grouting pressure relief pipeline is arranged on the annular body and the wall body in a penetrating mode, and two end ports of the grouting pressure relief pipeline extend out of the wall body and extend into the annular body respectively.
Compared with the prior art, the utility model has the following advantages and beneficial effects:
1. the water stopping device for the tunnel jacking tunnel portal adopts an assembled and spliced structure, so that the operation difficulty in limited spaces such as deep foundation pits can be greatly reduced, and the construction efficiency is improved.
2. The water stopping device for the tunnel jacking portal is provided with the two circles of elastic plates and the anti-overturning mechanism, so that the sealing performance and the water stopping effect are improved, and the construction quality is further improved.
Drawings
FIG. 1 is a schematic view of a water stop device for a tunnel-jacking portal of the present utility model (wherein the rubber plate is not shown);
FIG. 2 is a schematic view of the water stop device of the present utility model installed in a tunnel jacking tunnel portal;
FIG. 3 is a schematic view of the connection of the front end platen with the anti-rollover mechanism of the present utility model;
wherein, 1 is pre-buried collar, 1.1 is the annular, 1.2 is the wall, 2 is tunnel pipe jacking portal, 3 is slip casting release pipeline, 4 is jack-in station, 5 is the skeleton, 6 is front end clamp plate, 7 is the rear end clamp plate, 8 is the rubber slab, 9 is the connecting plate, 10 is the anti-turnover board, 11 is the pin housing, 12 is the clamping part, 13 water component, 14 is the screens.
Detailed Description
The utility model is described in further detail below with reference to the drawings and the detailed description.
Examples
As shown in fig. 1 to 3, the water stop device for the tunnel jacking pipe portal of the present utility model comprises a pre-buried mounting ring 1 and a plurality of water stop assemblies 13, wherein the pre-buried mounting ring 1 is pre-buried in the tunnel jacking pipe portal 2, and the pre-buried mounting ring 1 is provided with a grouting pressure relief pipeline 3 for grouting and pressure relief; the water stop assemblies 13 are detachably connected with the embedded mounting ring 1 respectively, the water stop assemblies 13 are circumferentially distributed on the embedded mounting ring 1 and mutually spliced, and a jacking station 4 of a jacking pipe is formed between the water stop assemblies 13.
Specifically, each water stop assembly 13 includes a frame 5, a front end pressing plate 6, a rear end pressing plate 7 and a rubber plate 8, wherein the front end pressing plate 6 and the rear end pressing plate 7 are detachably connected with the frame 5, the rubber plate 8 is detachably arranged between the front end pressing plate 6 and the frame 5 and between the rear end pressing plate 7 and the frame 5, and the rubber plate 8 extends out of the frame 5 and extends to the jacking station 4.
Each water stop assembly 13 of the utility model further comprises an anti-overturning mechanism for preventing the rubber plate 8 from overturning in the jacking reverse direction, the anti-overturning mechanism comprises a connecting plate 9 and an anti-overturning plate 10, the connecting plate 9 is provided with a pin bush 11, and the anti-overturning plate 10 is inserted into the pin bush 11 through a rotating shaft to realize the hinge connection with the connecting plate 9. The flap 10 extends from the frame 5 and is shorter than the rubber plate 8.
The two ends of the front end pressing plate 6 and the rear end pressing plate 7 of each water stop assembly 13 are respectively provided with a clamping part 12 and a clamping position 14 for splicing. After a plurality of water stop assemblies 13 are spliced, two rings of sealing rings are formed by the rubber plate 8 between the front end pressing plate 6 and the framework 5 and between the rear end pressing plate 7 and the framework 5. The utility model uses the deformation pressing force of the rubber plate 8 to block the gap between the tunnel-jacking pipe portal 2 and the jacking pipe, thereby achieving the effect of water stop of the tunnel-jacking pipe portal 2.
The embedded mounting ring 1 is formed by connecting an annular body 1.1 and a wall body 1.2, wherein the annular body 1.1 is embedded in a tunnel jacking cavity door 2, the wall body 1.2 is connected with the outer wall of the tunnel jacking cavity door 2, a grouting pressure relief pipeline 3 is arranged on the annular body 1.1 and the wall body 1.2 in a penetrating mode, and two end ports of the grouting pressure relief pipeline 3 extend out of the wall body 1.2 and extend into the annular body 1.1 respectively. The grouting pressure relief pipeline 3 can be used for grouting or pressure relief, and the grouting pressure relief pipeline 3 has the following functions and benefits: 1. in the initial stage of the tunnel pipe jacking machine head, when the water pressure in the tunnel pipe jacking portal 2 is overlarge, the grouting pressure relief pipeline can be opened to relieve pressure, so that the problem of reverse pushing of the tunnel pipe jacking machine head caused by overlarge water and soil pressure in front of a cutter head of the tunnel pipe jacking machine head is solved. 2. When the tunnel jacking pipe is penetrated, the tunnel jacking pipe portal 2 of the starting working well can be subjected to secondary grouting reinforcement through the grouting pressure relief pipeline, and the water stopping effect of the tunnel jacking pipe portal 2 is enhanced.
In the whole construction process of the pipe-jacking tunnel, when the pipe-jacking is jacked in the jacking station, the water-stopping component 13 is used as an originating tunnel gate sealing water-stopping component, and can play a role in sealing. The water stopping device adopts an assembled spliced structure, does not need on-site processing and welding, does not need cutting and cleaning or concrete encapsulation and covering after the tunnel is communicated, can greatly reduce the operation difficulty in limited spaces such as deep foundation pits and the like, and improves the construction efficiency. In addition, the water stop assembly 13 can be disassembled and reused, so that the construction use cost is reduced.
The above examples are preferred embodiments of the present utility model, but the embodiments of the present utility model are not limited to the above examples, and any other changes, modifications, substitutions, combinations, and simplifications that do not depart from the spirit and principle of the present utility model should be made in the equivalent manner, and the embodiments are included in the protection scope of the present utility model.
Claims (10)
1. A sealing device for tunnel pipe-jacking portal, its characterized in that: the water stopping device comprises a pre-buried mounting ring and a plurality of water stopping components; the embedded mounting ring is embedded in the tunnel jacking pipe portal, and is provided with a grouting pressure relief pipeline for grouting and pressure relief; the water stopping components are respectively detachably connected with the embedded mounting ring, are circumferentially distributed on the embedded mounting ring and are mutually spliced, and a jacking station of the jacking pipe is formed between the water stopping components.
2. The water stop device for a tunnel jacking portal according to claim 1, wherein: each water stop assembly comprises a framework, a front end pressing plate, a rear end pressing plate and an elastic plate; the front end pressing plate and the rear end pressing plate are respectively detachably connected with the framework; the elastic plates are detachably arranged between the front end pressing plate and the framework and between the rear end pressing plate and the framework respectively.
3. The water stop device for a tunnel jacking portal according to claim 2, wherein: the elastic plate extends out of the framework and extends to the jacking station.
4. The water stop device for a tunnel jacking portal according to claim 2, wherein: the elastic plate is a rubber plate.
5. The water stop device for a tunnel jacking portal according to claim 2, wherein: each water stop assembly further comprises an anti-overturning mechanism for preventing the elastic plate from overturning out in the jacking reverse direction of the jacking pipe; the anti-overturning mechanism is connected with the front end pressing plate.
6. The water stop device for a tunnel jacking portal of claim 5, wherein: the anti-overturning mechanism comprises a connecting plate and an anti-overturning plate; the connecting plate is connected with the front end pressing plate, and the anti-turnover plate is hinged with the connecting plate.
7. The water stop device for a tunnel jacking portal of claim 6, wherein: the anti-turnover plate extends out of the framework and is shorter than the elastic plate.
8. The water stop device for a tunnel jacking portal according to claim 2, wherein: the two ends of the front end pressing plate and the rear end pressing plate are respectively provided with a clamping part and a clamping position for splicing.
9. The water stop device for a tunnel jacking portal according to claim 2, wherein: after the water stop assemblies are spliced, two rings of sealing rings are formed by the elastic plates between the front end pressing plate and the framework and between the rear end pressing plate and the framework.
10. The water stop device for a tunnel jacking portal according to claim 1, wherein: the embedded mounting ring is formed by connecting an annular body and a wall body; the annular body is embedded in the tunnel jacking pipe portal, and the wall body is connected with the outer wall of the tunnel jacking pipe portal; the grouting pressure relief pipeline is arranged on the annular body and the wall body in a penetrating mode, and two end ports of the grouting pressure relief pipeline extend out of the wall body and extend into the annular body respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320048462.5U CN218991632U (en) | 2023-01-06 | 2023-01-06 | Water stopping device for tunnel jacking pipe portal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320048462.5U CN218991632U (en) | 2023-01-06 | 2023-01-06 | Water stopping device for tunnel jacking pipe portal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218991632U true CN218991632U (en) | 2023-05-09 |
Family
ID=86218499
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320048462.5U Active CN218991632U (en) | 2023-01-06 | 2023-01-06 | Water stopping device for tunnel jacking pipe portal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218991632U (en) |
-
2023
- 2023-01-06 CN CN202320048462.5U patent/CN218991632U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109630133B (en) | A kind of push-bench exempts to dismount pipeline system and its construction method | |
| CN205026239U (en) | Top is advanced with two rubber rings joint steel bell and spigot reinforced concrete pipe | |
| CN110184882B (en) | Road bed rammer compactor | |
| CN218991632U (en) | Water stopping device for tunnel jacking pipe portal | |
| CN107503758B (en) | Originating hole water stop device of miniature pipe curtain push bench | |
| CN204941551U (en) | A kind of subway station of Curve Pipe Jacking supporting and protection structure enlarging shield-tunneling construction | |
| CN110820803A (en) | Open excavation construction method for transverse connection channel of shield tunnel | |
| CN216765843U (en) | Prevention of seepage water concrete precast tubular pile | |
| CN105697022A (en) | Underground engineering squeezing-in device | |
| CN215057129U (en) | Swing type horizontal drilling casing device | |
| CN202672139U (en) | Prefabricated reinforced concrete square pile | |
| CN210768787U (en) | Cutter head driving assembly of push bench | |
| CN209924089U (en) | A well device of riding on horse for pipeline construction | |
| CN206487493U (en) | A kind of pre-buried ejection for water plugging structure of shield tunnel knocker plate | |
| CN201513669U (en) | Lining capable of being installed in water drain pipe or sewage drain pipe installed water with water | |
| CN214532992U (en) | Top shield combines transition pipe section | |
| CN214090251U (en) | Modular drainage inspection shaft | |
| CN221682978U (en) | Subway contact channel construction entrance to a cave safety device | |
| CN219653691U (en) | Underground diaphragm wall joint shutoff and sealing device | |
| CN219198334U (en) | Jacking construction structure of ultra-small clear distance large jacking pipe | |
| CN221399870U (en) | Grouting pipe pre-buried protector | |
| CN220365576U (en) | Municipal pipe-jacking working well portal plugging device | |
| CN218439395U (en) | Rectangular jacking pipe with double-steel-plate structure | |
| CN217001847U (en) | Be used for municipal pipeline engineering push pipe working well supporting device | |
| CN210395315U (en) | Underground continuous wall structure for water-rich sand layer deep foundation pit support |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |