CN114808852A - A import plugging device for tunnel overhauls - Google Patents
A import plugging device for tunnel overhauls Download PDFInfo
- Publication number
- CN114808852A CN114808852A CN202210613047.XA CN202210613047A CN114808852A CN 114808852 A CN114808852 A CN 114808852A CN 202210613047 A CN202210613047 A CN 202210613047A CN 114808852 A CN114808852 A CN 114808852A
- Authority
- CN
- China
- Prior art keywords
- hollow wedge
- shaped
- shaped plugging
- plugging body
- wedge
- 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.)
- Granted
Links
- 230000008676 import Effects 0.000 title description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 45
- 238000010438 heat treatment Methods 0.000 claims abstract description 15
- 238000012423 maintenance Methods 0.000 claims description 16
- 239000000463 material Substances 0.000 claims description 12
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 229910001120 nichrome Inorganic materials 0.000 claims 1
- 238000010276 construction Methods 0.000 description 5
- 210000004534 cecum Anatomy 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 210000000936 intestine Anatomy 0.000 description 2
- 229910000623 nickel–chromium alloy Inorganic materials 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/16—Sealings or joints
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B9/00—Water-power plants; Layout, construction or equipment, methods of, or apparatus for, making same
- E02B9/02—Water-ways
- E02B9/06—Pressure galleries or pressure conduits; Galleries specially adapted to house pressure conduits; Means specially adapted for use therewith, e.g. housings, valves, gates
-
- 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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention discloses an inlet plugging device for overhauling an underwater tunnel, which comprises a hollow wedge-shaped plugging body, wherein the hollow wedge-shaped plugging body is a wedge-shaped body, the section of the tail part of the wedge-shaped plugging body is a gradually-reduced circular ring from the tail part to the head part of the wedge-shaped plugging body, the maximum section size of the tail part of the wedge-shaped plugging body is matched with the size of the overhauled tunnel, a weight block is arranged at the bottom of the inner side of a cavity of the hollow wedge-shaped plugging body, a pull ring and a water filling valve are arranged on the tail end surface of the hollow wedge-shaped plugging body, a through pipe extending from the tail end surface of the hollow wedge-shaped plugging body to the outer side of the head part of the hollow wedge-shaped plugging body is arranged on the through pipe, a circumferential water stop belt is sleeved on the outer wall of the hollow wedge-shaped plugging body, and a heating wire is arranged in the circumferential water stop belt. When the tunnel needs to be overhauled, an overhaul worker enters the tunnel body through the traction rope control device connected to the pull ring, after the downstream gate of the tunnel is opened to drain water, the hollow wedge-shaped plugging body moves downstream along with water flow until the plugging hole body, and after the overhaul is finished, the plugging device is integrally pulled out through the traction rope.
Description
Technical Field
The invention discloses a tunnel plugging device, in particular to an inlet plugging device for front tunnel maintenance.
Background
A tunnel in a hydraulic engineering connecting reservoir area, in particular to a bank slope type emptying tunnel, wherein a cecum section with a certain length is arranged in front of a first gate in the tunnel. The cecum section is located before the first gate of tunnel, with the reservoir water intercommunication, under the operating mode that the reservoir kept the high water level, the problem probably exists in cecum section and the first gate itself before the first gate of tunnel in the reservoir area after the operation many years, in case suddenly the floodgate of opening turns on the water, probably influences tunnel or reservoir safety, for guaranteeing its safety, need regularly overhaul the reinforcement during reservoir conventional operation. The reduction reservoir water level overhauls and can bring great economic loss and social influence, and under the condition that does not reduce reservoir water level, the cecum section is overhauld and is consolidated and need go on under high head water, and the construction degree of difficulty is great, and engineering and personnel's safety risk is big.
Disclosure of Invention
The invention aims to solve the technical problem of providing an inlet plugging device for tunnel maintenance, which is used for plugging a tunnel inlet, maintaining and reinforcing a blind intestine section and a first gate in a tunnel under the condition of not reducing the reservoir water level, leading water in the tunnel to be horizontally pressed after the maintenance and the reinforcement are finished, and taking out the plugging device.
In order to solve the problems, the technical scheme adopted by the invention is as follows: an inlet plugging device for underwater tunnel maintenance comprises a hollow wedge-shaped plugging body, the hollow wedge-shaped plugging body is a wedge-shaped body with a gradually-reduced circular section from the tail part to the head part, the maximum section size of the tail part is matched with the size of a tunnel to be maintained, a ballast block for keeping the hollow wedge-shaped plugging body horizontal is arranged at the bottom of the inner side of a cavity of the hollow wedge-shaped plugging body, a pull ring for pulling the hollow wedge-shaped plugging body through a traction rope and a water filling valve for filling water into the inner cavity of the hollow wedge-shaped plugging body are arranged on the end surface of the tail part of the hollow wedge-shaped plugging body, a through pipe extending from the end surface of the tail part of the hollow wedge-shaped plugging body to the outer side of the head part is arranged on the end surface of the tail part of the hollow wedge-shaped plugging body, a pipe valve for controlling the through pipe to be opened and closed is arranged on the through pipe extending out of the head part of the hollow wedge-shaped plugging body, a circumferential water stop belt is sleeved on the outer wall of the large end part of the hollow wedge-shaped plugging body, and a heating wire is arranged in the circumferential water stop belt, the heating wire is connected with a power supply device through a cable.
The hollow wedge-shaped plugging body is made of steel materials meeting the requirement of structural stability, and the thickness of the hollow wedge-shaped plugging body is larger than 5 mm.
The material of the pull ring is the same as the whole material of the hollow wedge-shaped plugging body, the pull ring is integrally welded with the hollow wedge-shaped plugging body, and the diameter of the pull ring is larger than or equal to 2 cm.
The water filling valve is of a square or round hole structure and is provided with a blocking cover.
The heating wires are made of nickel-chromium alloy, the elongation rate is larger than or equal to 12, the diameter is larger than or equal to 3mm, and a plurality of heating wires are annularly arranged.
The tensile strength of the hauling rope is more than or equal to 1000 MPa.
The material of the communicating pipe valve is the same as that of the whole hollow wedge-shaped plugging body, and the diameter of the communicating pipe valve is not more than 20 cm.
The power supply device is an external power supply or a mobile diesel generator.
The invention has the beneficial effects that: firstly, a dry land construction site is provided for overhauling and reinforcing a blind intestine section and a first gate of a tunnel in a reservoir area; secondly, utilize shutoff body device shutoff tunnel import, safe and reliable, the construction is simple and convenient, but reuse, economic benefits is good, and is little to the reservoir influence.
Drawings
Fig. 1 is a perspective view of an inlet plugging device for underwater tunnel maintenance of the present invention.
FIG. 2 is a partial big picture of an inlet plugging device annular water stop for underwater tunnel overhaul.
FIG. 3 is a schematic view of the installation and operation of the inlet plugging device for underwater tunnel maintenance.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in figures 1-3, the inventive inlet plugging device for underwater tunnel overhaul comprises a hollow wedge-shaped plugging body 1, the hollow wedge-shaped plugging body 1 is a wedge-shaped body with a gradually decreasing circular section from the tail part to the head part, the maximum section size of the tail part is matched with the size of the tunnel to be overhauled, a pressure weight 7 for keeping the hollow wedge-shaped plugging body 1 horizontal is arranged at the bottom of the inner side of the cavity of the hollow wedge-shaped plugging body 1, a pull ring 2 for pulling the hollow wedge-shaped plugging body through a traction rope 4 and a water filling valve 3 for filling water into the inner cavity of the hollow wedge-shaped plugging body 1 are arranged on the tail end surface of the hollow wedge-shaped plugging body, a through pipe 10 extending from the tail end surface of the hollow wedge-shaped plugging body to the outer side of the head part is arranged on the through pipe 10 extending out of the head part of the hollow wedge-shaped plugging body, a pipe valve 8 for controlling the through pipe to be opened and closed is arranged on the tail outer wall of the big end part of the hollow wedge-shaped plugging body 1, a ring-shaped water stop belt 6 is sleeved on the tail outer wall of the big end of the hollow wedge-shaped plugging body 1, a heating wire 9 is arranged in the annular water stop belt 6, and the heating wire 9 is connected with a power supply device through a cable 5.
The hollow wedge-shaped plugging body 1 is made of steel materials meeting the structural stability requirement, and the thickness is larger than 5 mm. The material of the pull ring 2 is the same as the whole material of the hollow wedge-shaped plugging body 1, the pull ring 2 is integrally welded with the hollow wedge-shaped plugging body 1, and the diameter of the pull ring is larger than or equal to 2 cm. The water filling valve 3 is in a square or round hole structure and is provided with a blocking cover. The heating wires 9 are made of nickel-chromium alloy, the elongation is larger than or equal to 12, the diameter is larger than or equal to 3mm, and a plurality of heating wires are annularly arranged. The tensile strength of the traction rope 4 is more than or equal to 1000 MPa. The material of the communicating pipe valve 8 is the same as the whole material of the hollow wedge-shaped plugging body 1, and the diameter is not more than 20 cm. The power supply device is an external power supply or a mobile diesel generator.
Put into and pull out hollow wedge shutoff body 1 through 4 pulling pull rings of haulage rope, heater strip 9 passes through the power supply of cable conductor 5, and ballast piece 7 is used for keeping the shutoff body steady, and the hollow wedge shutoff body 1 that fills with water gets into inside the tunnel along the rivers direction to it is fixed through water pressure. The water filling valve 3 is of a square or circular hole structure and is used for keeping the hollow wedge-shaped plugging body 1 in a balanced state underwater by water inflow at the initial stage of putting the hollow wedge-shaped plugging body 1 into a tunnel. The diameter of the pipe valve 8 is not more than 20cm, so that the problem that the larger diameter causes difficulty in operation or harm to operators is avoided. The heating wire 9 is powered by the cable 5, and the power supply mode can be selected from an external power supply or a mobile diesel generator and the like according to the actual engineering situation.
Specifically, a hollow wedge-shaped plugging body 1 is placed on the water surface of a reservoir area at the upper part of a tunnel, a pressure weight 7 is used for keeping the hollow wedge-shaped plugging body 1 stable and not rolling on the water surface, a water filling valve 3 is opened for filling water, the water filling is stopped when the whole gravity of the hollow wedge-shaped plugging body 1 is equal to buoyancy, a diver is used for pushing or pulling the hollow wedge-shaped plugging body 1 into an entrance of the tunnel, the tunnel gate is lifted in a small range, the hollow wedge-shaped plugging body 1 enters the tunnel along with water flow, the hollow wedge-shaped plugging body 1 is tightly attached to the inner wall of the tunnel under the action of water pressure, the hollow wedge-shaped plugging body 1 is sealed and stopped by a circumferential water stop belt 6, dry construction conditions are kept in the tunnel, a communicating pipe valve 8 is opened for water flowing after the tunnel and a first gate are overhauled and reinforced, the first gate of the tunnel is closed, and after the inner and outer horizontal pressure of the tunnel is kept, a heating wire 9 in the circumferential water stop belt 6 is heated by the power supplied by a cable 5, after the annular water stop is soft at high temperature, the plugging body is loose, and a diver pulls the plugging body 1 out of the tunnel by using the pull ring 2 and the pull rope 4.
The inlet plugging device for tunnel maintenance has the advantages of low cost, retractability after use, convenient construction, convenient use, good water plugging effect, good economic benefit and stronger popularization value in the tunnel maintenance of the warehouse area.
The above-mentioned embodiments are only for illustrating the technical idea and features of the present invention, and the purpose of the present invention is to enable those skilled in the art to understand the content of the present invention and to implement the present invention accordingly, but not to limit the scope of the present invention by only the embodiments, i.e. all equivalent changes or modifications made within the spirit of the present invention disclosed in the present invention still fall within the scope of the present invention.
Claims (8)
1. An inlet plugging device for underwater tunnel maintenance is characterized by comprising a hollow wedge-shaped plugging body (1), wherein the hollow wedge-shaped plugging body (1) is a wedge-shaped body with a gradually-reduced circular section from the tail part to the head part, the maximum section size of the tail part is matched with the size of a maintained tunnel, a pressure weight (7) for keeping the hollow wedge-shaped plugging body (1) horizontal is arranged at the bottom of the inner side of a cavity of the hollow wedge-shaped plugging body (1), a pull ring (2) for pulling the hollow wedge-shaped plugging body through a traction rope (4) and a water filling valve (3) for filling water into an inner cavity of the hollow wedge-shaped plugging body (1) are arranged on the tail end surface of the hollow wedge-shaped plugging body, a through pipe (10) extending from the tail end surface of the hollow wedge-shaped plugging body to the outer side of the head part is arranged on the hollow wedge-shaped plugging body (1), and a pipe valve (8) for controlling the through pipe to be opened and closed is arranged on the through pipe (10) extending out of the head part of the hollow wedge-shaped plugging body, the outer wall of the tail part of the big end of the hollow wedge-shaped plugging body (1) is sleeved with a circumferential water stop belt (6), a heating wire (9) is arranged in the circumferential water stop belt (6), and the heating wire (9) is connected with a power supply device through a cable (5).
2. The inlet plugging device for underwater tunnel maintenance of claim 1, wherein the hollow wedge-shaped plugging body (1) is made of steel meeting the requirement of structural stability, and the thickness is larger than 5 mm.
3. The inlet plugging device for the underwater tunnel maintenance of claim 1, wherein the pull ring (2) is made of the same material as the hollow wedge-shaped plugging body (1), the pull ring (2) is integrally welded with the hollow wedge-shaped plugging body (1), and the diameter of the pull ring is larger than or equal to 2 cm.
4. The inlet plugging device for underwater tunnel maintenance of claim 1, wherein the water filling valve (3) is of a square or circular hole structure with a plugging cover.
5. The inlet plugging device for the underwater tunnel maintenance of claim 1, wherein the heating wires (9) are made of nichrome, the elongation rate is greater than or equal to 12, the diameter is greater than or equal to 3mm, and a plurality of heating wires are annularly arranged.
6. The inlet plugging device for underwater tunnel maintenance of claim 1, wherein the tensile strength of the hauling rope (4) is more than or equal to 1000 MPa.
7. The inlet plugging device for underwater tunnel maintenance of claim 1, wherein the material of the communicating pipe valve (8) is the same as the whole material of the hollow wedge-shaped plugging body (1), and the diameter of the communicating pipe valve is not more than 20 cm.
8. The inlet plugging device for underwater tunnel maintenance of claim 1, wherein the power supply device is an external power supply or a mobile diesel generator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210613047.XA CN114808852B (en) | 2022-05-20 | 2022-05-20 | Inlet plugging device for tunnel overhaul |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210613047.XA CN114808852B (en) | 2022-05-20 | 2022-05-20 | Inlet plugging device for tunnel overhaul |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114808852A true CN114808852A (en) | 2022-07-29 |
| CN114808852B CN114808852B (en) | 2024-03-29 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210613047.XA Active CN114808852B (en) | 2022-05-20 | 2022-05-20 | Inlet plugging device for tunnel overhaul |
Country Status (1)
| Country | Link |
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| CN (1) | CN114808852B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102383397A (en) * | 2010-09-06 | 2012-03-21 | 中国水利水电第二工程局有限公司 | Underwater suspended and drifted plugging construction method for high heads |
| CN104141286A (en) * | 2014-01-09 | 2014-11-12 | 成都绿迪科技有限公司 | Construction adit blocking structure |
| JP5980379B1 (en) * | 2015-06-17 | 2016-08-31 | 三菱重工メカトロシステムズ株式会社 | Water stop lid construction method |
| CN110004878A (en) * | 2019-04-02 | 2019-07-12 | 武大巨成结构股份有限公司 | A kind of application method of dam water flowing tunnel fast plugging device |
| CN111335262A (en) * | 2020-04-15 | 2020-06-26 | 国电金沙江旭龙水电开发有限公司 | Hydraulic tunnel plugging body and construction method |
| CN114032843A (en) * | 2021-12-03 | 2022-02-11 | 河南莱庆水利工程技术咨询服务有限公司 | Flood control dykes and dams leak shutoff bag |
-
2022
- 2022-05-20 CN CN202210613047.XA patent/CN114808852B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102383397A (en) * | 2010-09-06 | 2012-03-21 | 中国水利水电第二工程局有限公司 | Underwater suspended and drifted plugging construction method for high heads |
| CN104141286A (en) * | 2014-01-09 | 2014-11-12 | 成都绿迪科技有限公司 | Construction adit blocking structure |
| JP5980379B1 (en) * | 2015-06-17 | 2016-08-31 | 三菱重工メカトロシステムズ株式会社 | Water stop lid construction method |
| CN110004878A (en) * | 2019-04-02 | 2019-07-12 | 武大巨成结构股份有限公司 | A kind of application method of dam water flowing tunnel fast plugging device |
| CN111335262A (en) * | 2020-04-15 | 2020-06-26 | 国电金沙江旭龙水电开发有限公司 | Hydraulic tunnel plugging body and construction method |
| CN114032843A (en) * | 2021-12-03 | 2022-02-11 | 河南莱庆水利工程技术咨询服务有限公司 | Flood control dykes and dams leak shutoff bag |
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| Publication number | Publication date |
|---|---|
| CN114808852B (en) | 2024-03-29 |
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