CN110984087A - Overhauling method and structure from tailrace tunnel overhauling door slot to exit tunnel section - Google Patents
Overhauling method and structure from tailrace tunnel overhauling door slot to exit tunnel section Download PDFInfo
- Publication number
- CN110984087A CN110984087A CN201911165741.4A CN201911165741A CN110984087A CN 110984087 A CN110984087 A CN 110984087A CN 201911165741 A CN201911165741 A CN 201911165741A CN 110984087 A CN110984087 A CN 110984087A
- Authority
- CN
- China
- Prior art keywords
- gate
- tail water
- water outlet
- maintenance
- overhauling
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 70
- 238000012423 maintenance Methods 0.000 claims abstract description 31
- 238000005192 partition Methods 0.000 claims abstract description 12
- 238000007689 inspection Methods 0.000 claims description 4
- 230000035515 penetration Effects 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B7/00—Barrages or weirs; Layout, construction, methods of, or devices for, making same
- E02B7/20—Movable barrages; Lock or dry-dock gates
- E02B7/26—Vertical-lift gates
- E02B7/36—Elevating mechanisms for vertical-lift gates
-
- 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
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- 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
Abstract
The invention discloses a method and a structure for overhauling a section from a tail water tunnel overhauling gate slot to an exit tunnel, wherein a tail water outlet is locally enlarged and is divided into a plurality of gate holes by arranging a group of longitudinal partition piers at the tail water outlet, each gate hole is provided with a gate slot, and an overhauling gate is arranged in each gate slot; the maintenance gate is connected and locked to a locking beam of the tail water outlet maintenance platform through a pull rod, and the maintenance gate is opened and closed through a temporary crane through the pull rod. Under the condition of not influencing tail water outflow and unit output, the invention realizes the maintenance requirement and reduces the opening and closing force of the operation maintenance gate by arranging a plurality of maintenance gates at a tail water outlet, and can meet the requirement of the operation gate by selecting temporary equipment with smaller lifting force; the tail water outlet maintenance gate is connected and locked to the tail water outlet maintenance platform through a pull rod, so that the tail water outlet maintenance gate is convenient to assemble and disassemble, the difficulty of underwater shaft penetration of a temporary crane is well avoided, and the investment of adopting permanent opening and closing equipment can be saved.
Description
Technical Field
The invention relates to a method and a structure for overhauling a section from a tail water tunnel overhauling door slot to an exit tunnel, belonging to the technical field of hydraulic and hydroelectric engineering metal structures.
Background
At present, for the unstable tail water hole outlet of the side slope, the damage of a bent frame, a fixed winch, a gate and the like caused by sandy soil, rolling stones and the like generated by landslide is considered, so that an overhaul gate is arranged in the tail water hole, but the problem that the tunnel from a tail water hole overhaul gate slot to the outlet is difficult to overhaul due to no water retaining facility exists, the temporary cofferdam water retaining overhaul technology is arranged in the prior art, but the problems of long construction period, large investment and the like exist, if a stoplog gate is adopted, because the gate is underwater, a temporary crane is adopted to open and close an underwater penetrating shaft to realize difficulty, the opening and closing force required by the top section stoplog gate for moving water to open and flat pressing is large, and the conventional temporary crane is difficult to meet the use requirements, so the conventional technology is not perfect enough and needs to be further improved.
Disclosure of Invention
The invention aims to provide a method and a structure for overhauling a tunnel section from a tail water tunnel overhauling door slot to an exit, so as to solve the problem that the tunnel from the tail water tunnel overhauling door slot to the exit is difficult to overhaul due to no water retaining facility, thereby overcoming the defects in the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention relates to a method for overhauling a section from a tailrace tunnel overhauling door slot to an exit tunnel, which comprises the following steps: the tail water outlet is locally enlarged and is divided into a plurality of gate holes by arranging a group of longitudinal partition piers, each gate hole is provided with a gate slot, and an overhaul gate is arranged in each gate slot; the maintenance gate is connected and locked to a locking beam of the tail water outlet maintenance platform through a pull rod, and the maintenance gate is opened and closed through a temporary crane through the pull rod.
The overhauling structure from the tail water tunnel overhauling gate slot to the exit tunnel section comprises a tail water outlet, wherein a group of longitudinal partition piers capable of dividing the tail water outlet into a plurality of gate holes are arranged on the tail water outlet, a gate slot is arranged on each gate hole, and an overhauling gate is arranged in each gate slot; the maintenance gate is connected and locked to a locking beam of the tail water outlet maintenance platform through a pull rod.
And bypass valve pipes are arranged on two sides of the maintenance gate.
Due to the adoption of the technical scheme, compared with the prior art, the section from the tail water tunnel access gate slot to the exit tunnel adopts a multi-gate-hole outflow structure with locally enlarged and arranged tail water longitudinal partition piers, under the condition of not influencing tail water outflow and unit output, the access requirement is realized by arranging a plurality of access gates in the gate slot of the gate hole to retain water, the opening and closing force of the access gate is reduced, and the requirement of the access gate can be met by selecting temporary equipment with smaller lifting force; in addition, the tail water outlet overhaul gate is connected and locked to the tail water outlet overhaul platform through a pull rod, so that the tail water outlet overhaul gate is convenient to assemble and disassemble, the difficulty of underwater shaft penetration of a temporary crane is well avoided, the investment of permanent opening and closing equipment is effectively saved, and the two sides of the tail water outlet overhaul gate are provided with bypass valve pipelines to enhance the flat pressing reliability of the tail water outlet overhaul gate.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic sectional view A-A of FIG. 1.
The labels in the figures are: 1-tail water hole access door groove, 2-tail water outlet, 3-longitudinal partition pier, 4-gate hole, 5-door groove, 6-access gate, 7-pull rod, 8-tail water outlet access platform, 9-locking beam, 10-temporary crane and 11-by-pass valve pipe.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
The invention relates to a method for overhauling a section from a tail water tunnel overhauling gate slot to an exit tunnel, which is shown in a figure 1 and a figure 2 and comprises the steps of locally enlarging a tail water outlet 2, arranging a group of longitudinal partition piers 3 on the tail water outlet 2 to divide the tail water outlet into a plurality of gate holes 4, arranging a gate slot 5 on each gate hole 4, and arranging overhauling gates 6 in the gate slots 5; the maintenance gate 6 is connected and locked to a locking beam 9 of a tail water outlet maintenance platform 8 by a pull rod 7, and when the maintenance gate 6 is opened and closed, a temporary crane 10 is used for connecting and opening and closing the maintenance gate 6 through the pull rod 7.
According to the invention, the inspection structure from the tail water hole inspection gate slot to the exit tunnel section is composed according to the method, as shown in fig. 1 and fig. 2, the structure comprises the existing tail water outlet 2, a group of longitudinal partition piers 3 capable of dividing the tail water outlet into a plurality of gate holes 4 are arranged on the tail water outlet 2, the number of the gate holes 4 can be determined according to the use requirement, 2-8 gate holes 4 can be isolated by the longitudinal partition piers 3 under the normal condition, then a gate slot 5 is arranged on each gate hole 4, and an inspection gate 6 is arranged in the gate slot 5; the maintenance gate 6 is connected and locked to a locking beam 9 of a tail water outlet maintenance platform 8 through a pull rod 7; in order to enhance the flat pressing reliability and facilitate the maintenance, bypass valve pipes 11 can be respectively arranged on the two sides of the maintenance gate 6.
Examples
This example is shown in fig. 1 and 2. The tail water outlet 2 behind the tail water hole access door groove 1 is locally enlarged and is provided with a group of longitudinal partition piers 3 to divide the tail water outlet into a plurality of gate holes 4 for outflow. A gate slot 5 is arranged in the gate hole 4; an overhaul gate 6 is arranged in the gate slot 5; the maintenance gate 6 is connected and locked to a locking beam 9 of a tail water outlet maintenance platform 8 by a pull rod 7; the overhaul gate 6 is opened and closed by a temporary crane 10; bypass valve ducts 11 are provided on both sides of the access door 6.
According to the invention, a multi-gate-hole outflow structure with locally enlarged and arranged tail water longitudinal partition piers is adopted from a tail water hole access gate slot to an exit tunnel section, under the condition that tail water outflow and unit output are not influenced, the access requirement is realized by arranging a plurality of access gates in the gate slot of the gate hole to retain water, the opening and closing force of an operation access gate is reduced, and the requirement of the operation gate can be met by selecting temporary equipment with smaller lifting force; in addition, the tail water outlet overhaul gate is connected and locked to the tail water outlet overhaul platform through a pull rod, so that the tail water outlet overhaul gate is convenient to assemble and disassemble, the difficulty of underwater shaft penetration of a temporary crane is well avoided, the investment of permanent opening and closing equipment is effectively saved, and the two sides of the tail water outlet overhaul gate are provided with bypass valve pipelines to enhance the flat pressing reliability of the tail water outlet overhaul gate.
Claims (3)
1. The utility model provides a tail water tunnel access door groove is to maintenance method of export tunnel section which characterized in that: the method is characterized in that a tail water outlet is locally enlarged, a group of longitudinal partition piers are arranged at the tail water outlet to divide the tail water outlet into a plurality of gate holes, each gate hole is provided with a gate slot, and an inspection gate is arranged in each gate slot; the maintenance gate is connected and locked to a locking beam of the tail water outlet maintenance platform through a pull rod, and the maintenance gate is opened and closed through a temporary crane through the pull rod.
2. The utility model provides an overhaul structure of tailrace hole access door groove to export tunnel section, includes tailrace water export (2), its characterized in that: a group of longitudinal partition piers (3) capable of dividing the tail water outlet into a plurality of gate holes (4) are arranged on the tail water outlet (2), a gate slot (5) is arranged on each gate hole (4), and an overhaul gate (6) is arranged in each gate slot (5); the maintenance gate (6) is connected and locked to a locking beam (9) of the tail water outlet maintenance platform (8) through a pull rod (7).
3. The tailrace access door slot to exit tunnel segment access structure of claim 2, wherein: two sides of the overhaul gate (6) are provided with bypass valve pipes (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911165741.4A CN110984087A (en) | 2019-11-25 | 2019-11-25 | Overhauling method and structure from tailrace tunnel overhauling door slot to exit tunnel section |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911165741.4A CN110984087A (en) | 2019-11-25 | 2019-11-25 | Overhauling method and structure from tailrace tunnel overhauling door slot to exit tunnel section |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110984087A true CN110984087A (en) | 2020-04-10 |
Family
ID=70086316
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911165741.4A Pending CN110984087A (en) | 2019-11-25 | 2019-11-25 | Overhauling method and structure from tailrace tunnel overhauling door slot to exit tunnel section |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110984087A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113502790A (en) * | 2021-05-14 | 2021-10-15 | 中国电建集团贵阳勘测设计研究院有限公司 | Arrangement and installation method and structure of tail water surge shaft gate and opening and closing equipment |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106087899A (en) * | 2016-08-10 | 2016-11-09 | 河南省水利勘测设计研究有限公司 | Aperture width scalable float type maintenance steel-slag sand |
| CN107975017A (en) * | 2017-12-30 | 2018-05-01 | 中国电建集团贵阳勘测设计研究院有限公司 | A kind of locking means and structure of tailrace tunnel bulkhead gate |
| CN211498765U (en) * | 2019-11-25 | 2020-09-15 | 中国电建集团贵阳勘测设计研究院有限公司 | Overhaul structure from tailrace access door slot to exit tunnel section |
-
2019
- 2019-11-25 CN CN201911165741.4A patent/CN110984087A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106087899A (en) * | 2016-08-10 | 2016-11-09 | 河南省水利勘测设计研究有限公司 | Aperture width scalable float type maintenance steel-slag sand |
| CN107975017A (en) * | 2017-12-30 | 2018-05-01 | 中国电建集团贵阳勘测设计研究院有限公司 | A kind of locking means and structure of tailrace tunnel bulkhead gate |
| CN211498765U (en) * | 2019-11-25 | 2020-09-15 | 中国电建集团贵阳勘测设计研究院有限公司 | Overhaul structure from tailrace access door slot to exit tunnel section |
Non-Patent Citations (1)
| Title |
|---|
| 全国勘察设计注册工程师水利水电工程专业管理协会等: "《《中国水力发电工程 水工卷》》", 黄河水利出版社, pages: 216 - 218 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113502790A (en) * | 2021-05-14 | 2021-10-15 | 中国电建集团贵阳勘测设计研究院有限公司 | Arrangement and installation method and structure of tail water surge shaft gate and opening and closing equipment |
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