CN210948678U - Shield constructs quick-witted shield tail clearance gushes water and gushes sand plugging device - Google Patents
Shield constructs quick-witted shield tail clearance gushes water and gushes sand plugging device Download PDFInfo
- Publication number
- CN210948678U CN210948678U CN201922148831.4U CN201922148831U CN210948678U CN 210948678 U CN210948678 U CN 210948678U CN 201922148831 U CN201922148831 U CN 201922148831U CN 210948678 U CN210948678 U CN 210948678U
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- steel sheet
- shield
- gushes
- annular steel
- shield tail
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- Expired - Fee Related
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Abstract
The utility model belongs to the technical field of the tunnel engineering construction, specifically a shield constructs quick-witted shield tail clearance gushes water and gushes sand plugging device. Include the annular steel sheet through the shield constructs the inseparable laminating of quick-witted thrust cylinder and section of jurisdiction terminal surface of shield, 4 ball valves have evenly been laid on the annular steel sheet in annular steel sheet shutoff shield tail clearance, the annular steel sheet include 16 arc steel sheets, 16 arc steel sheets are assembled annular steel sheet and are become the ring, are provided with two positioner about the arc steel sheet respectively, adjacent arc steel sheet passes through positioner location, the inboard cambered surface of every arc steel sheet all is equipped with 2 handles. The utility model discloses the work progress is simple, and easy to operate has improved shutoff efficiency. Has simple process and strong practicability.
Description
Technical Field
The utility model belongs to the technical field of the tunnel engineering construction, specifically a shield constructs quick-witted shield tail clearance gushes water and gushes sand plugging device.
Background
The urban rail transit develops rapidly, and the shield is used very commonly at present. Shield construction theoretically has very high safety, but under some special geological conditions, such as water-rich silt stratum and river crossing construction process, the greater risk is that water gushing and sand gushing are caused by shield tail seal damage in the propulsion process. The serious engineering accident that the shield machine is buried in the tunnel happens occasionally because the shield tail sealing fails to cause mud inrush and water inrush, which leads to ground collapse. Therefore, the shield tail gap water and sand gushing plugging device is needed to be invented. According to the traditional shield tail water and sand leakage method, when shield tail water and sand leakage occurs, plugging materials such as shield tail cotton wool and sponge are adopted, the effect is obvious when the water gushing and sand gushing amount is small, when the water gushing and sand gushing amount is large, the external pressure of the shield tail is large, the plugging materials are easily flushed out together, plugging failure is caused, and engineering accidents are caused.
Disclosure of Invention
The utility model discloses a solve above-mentioned problem, provide a shield constructs quick-witted shield tail clearance gushes water and gushes sand plugging device.
The utility model adopts the following technical proposal: the utility model provides a shield constructs quick-witted shield tail clearance gushes water and gushes sand plugging device, includes the annular steel sheet that closely laminates through shield constructs quick-witted thrust cylinder and section of jurisdiction terminal surface, annular steel sheet shutoff shield tail clearance evenly has laid 4 ball valves on the annular steel sheet, the annular steel sheet include 16 arc steel sheets, 16 arc steel sheets assemble the annular steel sheet cyclization, be provided with two positioner about the arc steel sheet respectively, adjacent arc steel sheet passes through positioner location, the inboard cambered surface of every arc steel sheet all is equipped with 2 handles.
Furthermore, the thickness of the annular steel plate is 8 mm.
Furthermore, every 4 arc steel plates are welded with paired wires, and a ball valve is installed.
When slurry leakage or water burst and sand gushing exist in the gap of the shield tail, annular steel plates can be quickly assembled in the shield tail of the shield tunneling machine to form a ring, and each assembled annular steel plate is matched with a thrust cylinder of the shield tunneling machine to tightly attach the annular steel plates to the end faces of the segments until an annular blocking structure is formed; the ball valves are respectively arranged up, down, left and right, so that the water and sand leakage condition of the shield tail gap can be conveniently checked; and (5) completing shield tail plugging after secondary grouting reinforcement of the shield tail.
Compared with the prior art, the utility model discloses following beneficial effect has:
(1) after the steel plates are assembled into a ring, the steel plates can be tightly propped against the segment through the shield propulsion oil cylinder, so that the possibility that plugging materials are punched out due to overlarge external pressure is solved;
(2) the risk that the sealing brush is damaged because plugging materials enter the shield tail in the shield advancing process is avoided;
(3) can be repeatedly used, saves resources and can be prepared in the shield machine as emergency materials.
The utility model makes full use of the thrust cylinder of the shield to lead the steel plate seal to be tightly attached to the duct piece, thereby not only providing external force to seal the leakage water and sand, but also avoiding the risk that the sealing brush is damaged because the sealing material enters the shield tail in the traditional method; the construction procedure is simple, easy to operate, has improved shutoff efficiency. Has the advantages of simple process, strong practicability, easy popularization and the like.
Drawings
FIG. 1 is a device for blocking water and sand gushing in a gap between shield tails of a shield tunneling machine;
in the figure: 1-annular steel plate, 2-positioning device, 3-pipe piece, 4-ball valve, 5-shield tail of shield machine, 6-handle and 7-shield tail gap.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention; based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in figure 1, a shield constructs quick-witted shield tail clearance gushes water and gushes sand plugging device, include through shield constructs quick-witted thrust cylinder and the 3 annular steel sheet 1 that the terminal surface of section of jurisdiction closely laminated, 1 shutoff shield tail clearance 7 of annular steel sheet, evenly laid 4 ball valves 4 on the annular steel sheet 1, annular steel sheet 1 include 16 arc steel sheets, 1 cyclization of annular steel sheet is assembled to 16 arc steel sheets, is provided with two positioner 2 about the arc steel sheet respectively, adjacent arc steel sheet passes through positioner 2 location, the inboard cambered surface of every arc steel sheet all is equipped with 2 handles 6. The thickness of the annular steel plate is 1 mm and 8 mm. Every 4 arc steel plates are welded with paired wires, and a ball valve 4 is installed.
The implementation steps include the following:
step one, processing an annular steel plate.
A. Cutting 16 annular steel plates in advance according to a drawing; B. a positioning device and a handle are arranged on the left and right of each steel plate; C. 4 of the welding pairs are welded, and a 50mm ball valve is installed;
and step two, assembling the shield tail.
A. Assembling the plates one by one after water and sand leakage occurs; B. each assembled steel plate is tightly propped against a corresponding segment by adopting a shield propulsion oil cylinder until an annular plugging structure is formed; C. if necessary, the seam position can be welded and reinforced;
and step three, plugging the shield tail.
A. Secondary cement and water glass double-liquid slurry is refilled at the rear part of the shield tail through the segment hoisting hole, so that the soil body behind the shield tail is stabilized; B. checking the water and sand leakage condition of the shield tail through the ball valve; C. and (5) completing water and sand gushing plugging of a shield tail gap of the shield tunneling machine.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (3)
1. The utility model provides a shield constructs quick-witted shield tail clearance gushes water and gushes sand plugging device which characterized in that: include annular steel sheet (1) through the inseparable laminating of shield constructs quick-witted thrust cylinder and section of jurisdiction (3) terminal surface, annular steel sheet (1) shutoff shield tail clearance (7), evenly laid 4 ball valves (4) on annular steel sheet (1), annular steel sheet (1) including 16 arc steel sheets, annular steel sheet (1) cyclization is assembled to 16 arc steel sheets, is provided with two positioner (2) about the arc steel sheet respectively, adjacent arc steel sheet passes through positioner (2) location, the inboard cambered surface of every arc steel sheet all is equipped with 2 handle (6).
2. The shield machine shield tail clearance gushing water and gushing sand plugging device of claim 1, characterized in that: the thickness of the annular steel plate (1) is 8 mm.
3. The shield machine shield tail clearance gushing water and gushing sand plugging device of claim 1, characterized in that: every 4 arc steel plates are welded with paired wires, and a ball valve (4) is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922148831.4U CN210948678U (en) | 2019-12-04 | 2019-12-04 | Shield constructs quick-witted shield tail clearance gushes water and gushes sand plugging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922148831.4U CN210948678U (en) | 2019-12-04 | 2019-12-04 | Shield constructs quick-witted shield tail clearance gushes water and gushes sand plugging device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210948678U true CN210948678U (en) | 2020-07-07 |
Family
ID=71376696
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922148831.4U Expired - Fee Related CN210948678U (en) | 2019-12-04 | 2019-12-04 | Shield constructs quick-witted shield tail clearance gushes water and gushes sand plugging device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210948678U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113653495A (en) * | 2021-08-09 | 2021-11-16 | 北京城建轨道交通建设工程有限公司 | Method and emergency device for preventing shield tail from gushing water and sand |
-
2019
- 2019-12-04 CN CN201922148831.4U patent/CN210948678U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113653495A (en) * | 2021-08-09 | 2021-11-16 | 北京城建轨道交通建设工程有限公司 | Method and emergency device for preventing shield tail from gushing water and sand |
| CN113653495B (en) * | 2021-08-09 | 2024-04-30 | 北京城建轨道交通建设工程有限公司 | Method and emergency device for preventing water and sand from rushing from shield tail |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200707 Termination date: 20211204 |