CN112627117B - A water-stop hot-melt connection structure between an asphalt concrete core wall and a bank slope or a building - Google Patents
A water-stop hot-melt connection structure between an asphalt concrete core wall and a bank slope or a building Download PDFInfo
- Publication number
- CN112627117B CN112627117B CN202110016705.2A CN202110016705A CN112627117B CN 112627117 B CN112627117 B CN 112627117B CN 202110016705 A CN202110016705 A CN 202110016705A CN 112627117 B CN112627117 B CN 112627117B
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- Prior art keywords
- asphalt concrete
- bank slope
- core wall
- concrete core
- hot
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- 239000011384 asphalt concrete Substances 0.000 title claims abstract description 55
- 239000012943 hotmelt Substances 0.000 title claims abstract description 17
- 239000004567 concrete Substances 0.000 claims abstract description 16
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910052802 copper Inorganic materials 0.000 claims abstract description 8
- 239000010949 copper Substances 0.000 claims abstract description 8
- 238000002844 melting Methods 0.000 claims description 24
- PTVDYARBVCBHSL-UHFFFAOYSA-N copper;hydrate Chemical compound O.[Cu] PTVDYARBVCBHSL-UHFFFAOYSA-N 0.000 claims description 20
- 230000008018 melting Effects 0.000 claims description 14
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000009415 formwork Methods 0.000 abstract 2
- 238000010276 construction Methods 0.000 description 4
- 239000011435 rock Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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
- E02B7/02—Fixed barrages
- E02B7/04—Dams across valleys
- E02B7/06—Earth-fill dams; Rock-fill dams
-
- 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
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A10/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
- Y02A10/11—Hard structures, e.g. dams, dykes or breakwaters
Landscapes
- 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)
- Revetment (AREA)
Abstract
本发明公开了一种沥青混凝土心墙与岸坡或建筑物的止水热熔连接结构，包括混凝土模板、铜止水片和多个热熔棒，混凝土模板设置在岸坡和沥青混凝土心墙连接处的外侧且包裹住岸坡基座的两侧和沥青混凝土心墙的端部；铜止水片设置在沥青混凝土心墙的端部和岸坡基座之间，多个热熔棒靠近铜止水片分布，岸坡与沥青混凝土心墙连接处的顶部设置有沉降观测仪，按照观测大坝运行期间沉降结果，控制热熔棒的工作状态，释放铜止水片的应力以及铜止水片和岸坡的边墙再次进行固结粘合，实现沥青混凝土心墙与岸坡的整体结合。本发明的止水热熔连接结构具有维修操作简单，费用低，时间短的特点；在大坝发生沉降变形后，及时处理，无需要将破坏部位拆除重建。
The present invention discloses a water-stopping hot-melt connection structure for an asphalt concrete core wall and a bank slope or a building, comprising a concrete formwork, a copper water-stop sheet and a plurality of hot-melt rods. The concrete formwork is arranged on the outside of the connection between the bank slope and the asphalt concrete core wall and wraps the two sides of the bank slope base and the end of the asphalt concrete core wall; the copper water-stop sheet is arranged between the end of the asphalt concrete core wall and the bank slope base, and a plurality of hot-melt rods are distributed close to the copper water-stop sheet. A settlement observation instrument is arranged on the top of the connection between the bank slope and the asphalt concrete core wall. According to the settlement results observed during the operation of the dam, the working state of the hot-melt rod is controlled, the stress of the copper water-stop sheet is released, and the copper water-stop sheet and the side wall of the bank slope are consolidated and bonded again, so as to realize the integral combination of the asphalt concrete core wall and the bank slope. The water-stopping hot-melt connection structure of the present invention has the characteristics of simple maintenance operation, low cost and short time; after the settlement and deformation of the dam occurs, it can be handled in time without the need to dismantle and rebuild the damaged part.
Description
Technical Field
The invention belongs to the technical field of asphalt concrete core walls of hydraulic and hydroelectric engineering, and particularly relates to a water-stopping hot-melting connection structure of an asphalt concrete core wall and a bank slope or a building.
Background
The asphalt concrete core wall earth-rock dam is a dam type widely applied to the current domestic hydraulic and hydroelectric engineering, and has the advantages of locally available materials, transportation cost saving, construction time shortening, construction efficiency improvement, low construction technology difficulty, simple integral structure, low requirements on a dam foundation, strong integral adaptive deformation capacity and the like. Because the dam foundation cover layer is thicker and the loose structure of the earth and rockfill dam body has large deformation capacity, the integral settlement of the dam body can occur along with long-time operation of the dam.
At present, the connection mode of asphalt concrete core walls and bank slopes at two sides of a dam and concrete buildings in the dam body is generally directly connected by copper water stop, and the concrete connection mode is generally as follows: after the bank slope is cleaned to bedrock, a concrete base with a certain thickness is poured, a copper water stop sheet is buried on the base, when an asphalt concrete core wall is paved or poured, the other side of the copper water stop sheet is inlaid in the middle of the core wall, and the copper water stop sheet is fixedly connected into the core wall along with the reduction of asphalt temperature. Along with the higher and longer-term operation of earth and rockfill dam, the accumulated settlement deformation of the dam body is also larger and larger, settlement damage is most likely to occur at the joints of asphalt concrete core walls and bank slopes or buildings at two sides of the dam, copper water stop tearing is caused, deformation cracks occur at the joints of the asphalt concrete core walls and the bank slopes, and the safety of the dam body is affected. About 24% of the earth-rock dams are counted to be caused by the destruction of a water stopping structure of a bank slope, for example, after a certain large reservoir in the north operates for 10 years, the earth-rock dams are settled for 12cm, so that copper water stopping at the joint of an asphalt concrete core wall and a dam body concrete irrigation hole is torn, the upper part of a construction unit is dismantled for 5m, and water stopping is reinstalled; after 5 years of operation, the steel is greatly deformed. Therefore, a water stop connection structure for avoiding damaging a bank slope or a building due to the settlement deformation of a dam body is provided. In addition, the maintenance cost is high, and the difficulty is high; after sedimentation deformation, the damaged part needs to be removed and rebuilt, and the safe operation of the dam and the play of the reservoir benefit are seriously affected.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a water-stopping hot-melting connection structure of an asphalt concrete core wall and a bank slope or a building.
In order to achieve the above purpose, the technical scheme of the invention is as follows:
a water-stopping hot-melting connection structure of asphalt concrete core wall and bank slope or building comprises a concrete template, a copper water-stopping sheet and a plurality of hot-melting rods,
The concrete templates are arranged on the outer side of the joint of the bank slope and the asphalt concrete core wall and wrap the two sides of the bank slope base and the end part of the asphalt concrete core wall;
The copper water stop sheet is arranged between the end part of the asphalt concrete core wall and the bank slope base,
A plurality of hot melt bars are distributed close to the copper water stop sheet;
And a settlement observer is arranged at the top of the joint of the bank slope and the asphalt concrete core wall, the working state of the hot melting rod is controlled according to the settlement result during the operation period of the observation dam, the stress of the copper water stop sheet is released, and the copper water stop sheet and the side wall of the bank slope are consolidated and bonded again, so that the integral combination of the asphalt concrete core wall and the bank slope is realized.
Further, the length of one end of the concrete template far away from the bank slope is not less than 1m from the bank slope.
Further, a plurality of hot melting rods are vertically arranged at the middle upper part of the asphalt concrete core wall; or a plurality of hot melt bars are arranged in layers according to the height of the asphalt concrete core wall, if the asphalt concrete core wall is too high, the hot melt bars are arranged in layers in the vertical direction of the asphalt concrete core wall, and even if individual hot melt bars fail, the whole operation is not influenced.
Furthermore, the hot melting rods are electrically connected in parallel or in series, and are numbered according to the elevation, and the connecting wires are led out along the bank slope.
The beneficial effects are that: the water-stopping hot-melting connection structure has the characteristics of simple maintenance operation, low cost and short time; after the dam is subjected to settlement deformation, the dam is treated in time, and the damaged part is not required to be removed and rebuilt.
Drawings
FIG. 1 is a top plan view of the structure of the present invention;
Fig. 2 is a schematic structural view of the present invention.
In the figure, 1-bank slope, 2-bank slope base, 3-copper water stop sheet, 4-concrete template, 5-asphalt concrete core wall and 6-hot melting rod.
Detailed Description
The invention is described below with reference to specific examples. It will be appreciated by those skilled in the art that these examples are for illustration of the invention only and are not intended to limit the scope of the invention in any way.
A water-stopping hot-melting connection structure of asphalt concrete core wall and bank slope or building, as shown in figures 1 and 2, comprises a concrete template 4, a copper water-stopping sheet 3 and five hot-melting bars 6,
The concrete templates 4 are arranged on the outer side of the joint of the bank slope 1 and the asphalt concrete core wall 5 and wrap the two sides of the bank slope base 2 and the end parts of the asphalt concrete core wall 5;
the copper water stop sheet 3 is vertically arranged between the end of the asphalt concrete core wall 5 and the bank slope base 2,
The five hot melting rods 6 are distributed close to the copper water stop sheet 3 and are vertically arranged at the middle upper part of the asphalt concrete core wall 5, the five hot melting rods 6 are electrically connected in parallel or in series, numbering is carried out according to the elevation, and connecting wires are led out along the bank slope 1; a settlement observation instrument (not shown) is arranged at the top of the joint of the bank slope 1 and the asphalt concrete core wall 5, the working states of the five hot melting rods 6 are controlled according to the settlement result in the operation period of the observation dam, if settlement occurs, the hot melting rods 6 are opened to melt asphalt concrete of the asphalt concrete core wall 5 through the hot melting action, the copper water stop sheet 3 is separated from the asphalt concrete core wall 5 under the action of settlement stress, and the stress of the copper water stop sheet 3 is released; after the stress is released, the hot melting rod 6 is closed, the asphalt concrete core wall 5 is naturally cooled, and is again solidified and bonded with the copper water stop sheet 3 and the side wall of the bank slope 1, so that the integral combination of the asphalt concrete core wall 5 and the bank slope 1 is realized, and the seepage prevention effect is realized.
In this embodiment, the five hot melt bars 6 may be layered according to the height of the asphalt concrete core wall 5, and if the asphalt concrete core wall 5 is too high, the five hot melt bars 6 are layered in the vertical direction of the asphalt concrete core wall 5, so that the overall operation is not affected even if the individual hot melt bars 6 fail.
In this embodiment, the length of the end of the concrete form 4 away from the bank slope 1 is not less than 1m from the bank slope 1.
In this embodiment, the bank slope 1 can be replaced with a building.
The working principle of the invention is as follows: because the heights of the dams are different, along with the rising of the heights of the dams, the heights of the asphalt concrete core walls 5 also rise, and in general, the accumulated deformation of the dams is larger and larger at the position of more than half the heights of the asphalt concrete core walls 5, and the accumulated deformation can be effectively solved by arranging the hot melting rods 6; in the range below half of the asphalt concrete core wall 5, the accumulated deformation is small, and the natural settlement of the dam body can be solved through the expansion and contraction performance of the copper water stop sheet.
Claims (1)
1. A water-stopping hot-melting connection structure of asphalt concrete core wall and bank slope or building is characterized by comprising a concrete template, a copper water-stopping sheet and a plurality of hot-melting rods,
The concrete templates are arranged on the outer side of the joint of the bank slope and the asphalt concrete core wall and wrap the two sides of the bank slope base and the end part of the asphalt concrete core wall;
The copper water stop sheet is arranged between the end part of the asphalt concrete core wall and the bank slope base,
A plurality of hot melt bars are distributed close to the copper water stop sheet;
a settlement observer is arranged at the top of the joint of the bank slope and the asphalt concrete core wall, the working state of the hot melting rod is controlled according to the settlement result during the operation period of the observation dam, the stress of the copper water stop sheet is released, and the copper water stop sheet and the side wall of the bank slope are consolidated and bonded again, so that the integral combination of the asphalt concrete core wall and the bank slope is realized;
the length of one end of the concrete template far away from the bank slope is not less than 1m from the bank slope;
the hot melting rods are vertically arranged at the middle upper part of the asphalt concrete core wall; or a plurality of hot melt bars are arranged in a layered mode according to the height of the asphalt concrete core wall, if the asphalt concrete core wall is too high, the hot melt bars are arranged in a multi-layer mode in the vertical direction of the asphalt concrete core wall, and even if individual hot melt bars fail, the integral operation is not affected;
the hot melting rods are electrically connected in parallel or in series, numbering is carried out according to the elevation, and connecting wires are led out along the bank slope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110016705.2A CN112627117B (en) | 2021-01-07 | 2021-01-07 | A water-stop hot-melt connection structure between an asphalt concrete core wall and a bank slope or a building |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110016705.2A CN112627117B (en) | 2021-01-07 | 2021-01-07 | A water-stop hot-melt connection structure between an asphalt concrete core wall and a bank slope or a building |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112627117A CN112627117A (en) | 2021-04-09 |
| CN112627117B true CN112627117B (en) | 2024-11-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110016705.2A Active CN112627117B (en) | 2021-01-07 | 2021-01-07 | A water-stop hot-melt connection structure between an asphalt concrete core wall and a bank slope or a building |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114293517B (en) * | 2022-02-24 | 2023-09-29 | 中水北方勘测设计研究有限责任公司 | Method for preventing asphalt concrete core wall and concrete base in mountain gorge valley region from cracking |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN214363321U (en) * | 2021-01-07 | 2021-10-08 | 松辽水利委员会水利工程建设管理站 | Water-stopping hot-melting connecting structure of asphalt concrete core wall and bank slope or building |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203546678U (en) * | 2013-10-14 | 2014-04-16 | 中国水电顾问集团贵阳勘测设计研究院 | Asphalt concrete core-wall rockfill dam structure |
| KR101570939B1 (en) * | 2014-12-18 | 2015-11-20 | (주)대우건설 | Asphalt core fill dam with core zone using waterstop of corrugated plate |
| CN204589917U (en) * | 2015-04-29 | 2015-08-26 | 中国电建集团成都勘测设计研究院有限公司 | Soil core wall rockfill dam bank slope concrete cover |
| CN107338770B (en) * | 2017-08-17 | 2020-05-01 | 重庆交通大学 | Combined dam shape of asphalt concrete core wall dam and concrete gravity dam and construction method thereof |
| CN207314284U (en) * | 2017-09-11 | 2018-05-04 | 中国电建集团北京勘测设计研究院有限公司 | Leakage preventing structure in a kind of dam of narrow steep river valley rockfill dam with asphalt concrete core |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN214363321U (en) * | 2021-01-07 | 2021-10-08 | 松辽水利委员会水利工程建设管理站 | Water-stopping hot-melting connecting structure of asphalt concrete core wall and bank slope or building |
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| CN112627117A (en) | 2021-04-09 |
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