CN111172932A - Water storage maintenance structure and maintenance method for bottom plate of reverse arc concrete plunge pool - Google Patents
Water storage maintenance structure and maintenance method for bottom plate of reverse arc concrete plunge pool Download PDFInfo
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- CN111172932A CN111172932A CN201911078095.8A CN201911078095A CN111172932A CN 111172932 A CN111172932 A CN 111172932A CN 201911078095 A CN201911078095 A CN 201911078095A CN 111172932 A CN111172932 A CN 111172932A
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- plunge pool
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B1/00—Equipment or apparatus for, or methods of, general hydraulic engineering, e.g. protection of constructions against ice-strains
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- 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
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Abstract
The invention discloses a water storage maintenance structure and a maintenance method for a bottom plate of an inverse arc concrete plunge pool. The maintenance method comprises the following steps: according to the size of the concrete blocks of the reverse arc concrete plunge pool bottom plate, paving a first layer of water storage sponge on the reverse arc concrete plunge pool bottom plate in blocks, and uniformly covering the concrete surface; laying a layer of heat insulation boards on the upper part of the water storage sponge in blocks according to the same size; a water discharge pipe is laid on the heat insulation plate, holes are drilled at the bottoms of the water pipes at equal intervals, branch pipes are installed at the bottoms of the water pipes, the holes are drilled in the heat insulation plate correspondingly, and the branch pipes are connected to the water storage sponge layer; and water is introduced into the water pipe inlet to enable the water storage sponge to absorb water, and the water storage sponge filled with water is used for maintaining the surface humidity of the bottom plate of the plunge pool to maintain the bottom plate of the plunge pool.
Description
Technical Field
The invention relates to the field of concrete curing of arc-shaped structures, in particular to a novel water storage curing structure and a curing method for a bottom plate of a reverse arc-shaped concrete plunge pool of a high dam reservoir.
Background
The river network in the southwest region of China is densely distributed, the great rivers of the great river contain abundant hydroenergy resources, and the engineering of the dam and the dam is not developed in advance along with the continuous increase of the development of the hydroenergy resources in China. The dam body of the engineering is high in flood discharge flow and energy, and the bottom plate of the downstream plunge pool can bear large jet impact and pulsating pressure. The flow velocity of the falling water flow discharged from the dam body close to the bottom of the water-filled pond is high, the transverse curved surface of the inverted arc-shaped bottom plate is favorable for smooth diffusion and connection of the water tongues, the pressure gradient is smooth, and the flow state is smooth. The structure can give full play to the arch function, and has low overall cost and high safety. Meanwhile, some dam sites are built with base planes, the cross sections of river valleys have good reverse arc shapes, and a reverse arc-shaped plunge pool bottom plate is generated by transportation. The surface layer of the bottom plate of the reverse arc water-cushioned pond generally adopts high-strength anti-abrasion concrete, and the temperature deformation and the self-contraction deformation of the concrete are obviously increased due to the improvement of the strength of the cement used by the concrete and the increase of the using amount of the cement. Due to the small cement ratio of the high-strength concrete, plastic shrinkage cracking is easily generated on the surface. Therefore, the maintenance of the concrete of the bottom plate of the reverse arc water-filled pond is particularly important.
As shown in fig. 1, in the maintenance process of the bottom plate of the traditional plunge pool in the construction period, the concrete at the middle part is usually used for water storage and maintenance, and the concrete at the side wall is continuously maintained in flowing water until the plunge pool is filled with water, so as to meet the requirement of maintaining a certain humid state on the surface of the concrete, prevent the concrete from generating temperature cracks at the later stage and play a role in cooling and moisturizing the surface of the bin. The traditional maintenance mode has the problems that maintenance water flow is not uniform, continuity is poor, construction is affected by water accumulated on the base plate and the like, and construction interference and water resource waste are easily caused.
Disclosure of Invention
The invention provides an economical, reasonable and feasible-designed maintenance structure of a bottom plate of a reverse arc concrete plunge pool in a construction period, which can ensure that maintenance water flow is continuously and uniformly distributed on the bottom plate surface of the plunge pool without influencing construction of other parts and achieve the aim of effectively maintaining the bottom plate of the reverse arc concrete plunge pool of a high dam.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention discloses a water storage and maintenance structure for a bottom plate of an inverse arc concrete plunge pool of a high dam reservoir.
Preferably, the water pipes are laid along the axial direction of the reverse arc concrete plunge pool bottom plate.
Preferably, the water pipes and the branch pipes are made of PVC materials.
The invention also provides a water storage and maintenance method for the bottom plate of the reverse arc concrete plunge pool of the high dam reservoir, which comprises the following steps:
according to the size of the concrete blocks of the reverse arc concrete plunge pool bottom plate, paving a first layer of water storage sponge on the reverse arc concrete plunge pool bottom plate in blocks, and uniformly covering the concrete surface;
laying a layer of heat insulation boards on the upper part of the water storage sponge in blocks according to the same size;
a water discharge pipe is laid on the heat insulation plate, holes are drilled at the bottoms of the water pipes at equal intervals, branch pipes are installed at the bottoms of the water pipes, the holes are drilled in the heat insulation plate correspondingly, and the branch pipes are connected to the water storage sponge layer;
and water is introduced into the water pipe inlet to enable the water storage sponge to absorb water, and the water storage sponge filled with water is used for maintaining the surface humidity of the bottom plate of the plunge pool to maintain the bottom plate of the plunge pool.
The beneficial effects of the invention are:
(1) moisture preservation and maintenance: the water-absorbing and moisture-preserving performance of the water-storing sponge is utilized to provide continuous and uniform water supply on the concrete surface of the bottom plate, and the humidity of the concrete surface can be effectively controlled within the range of the standard requirement.
(2) Heat preservation and wind prevention: through covering the heated board on the surface, can make concrete and outside air keep appropriate inside and outside difference in temperature, play the heat preservation effect, can effectively reduce the evaporation of moisture in the water storage sponge simultaneously and scatter and disappear. After the water storage sponge and the heat insulation board are covered on the surface of the bottom board, the concrete surface of the bottom board is separated from air, and the wind and crack prevention effects are achieved.
(3) Unified control: after all the water pipes are gathered together, the water pipes can be uniformly controlled, and the water flow supply for maintenance is distributed. Meanwhile, the corresponding water-feeding maintenance intensity can be selected according to factors such as the outside air temperature and the humidity, and the effects of timely adjustment and unified control are achieved.
(4) Economy and saving: the materials required by the maintenance structure comprise water storage sponge, heat insulation boards and water pipes, and are low in cost, good in effect and all environment-friendly materials. The water storage sponge absorbs moisture after the structure is filled with water, slowly releases maintenance water, keeps the surface of the bottom plate wet, and meanwhile, the insulation board covered on the surface can effectively reduce moisture loss, so that the water-saving effect is achieved.
Drawings
FIG. 1 is a schematic view of a conventional curing scheme.
Fig. 2 is a schematic view of a water storage and maintenance structure of a bottom plate of a reverse arc concrete plunge pool of a high dam.
Fig. 3 is a sectional view of the block at "a" of fig. 2.
Fig. 4 is a block plan view of the water storage and maintenance structure of the bottom plate of the inverse arc concrete plunge pool of the high dam.
In the figure:
1. concrete for the bottom plate of the water-filled pond; 2. surface layer high-strength concrete; 3. a water storage sponge; 4. a thermal insulation board; 5. A water pipe; 6. and (4) branch pipes.
Detailed Description
The invention is further described with reference to the following figures and detailed description.
As shown in fig. 2, 3 and 4, the invention relates to a water storage and maintenance structure of a bottom plate of a reverse arc concrete plunge pool of a high dam and a large reservoir. The structure is applied to the retaining maintenance work of the reverse circular arc concrete plunge pool bottom plate of the large dam, the structure comprising the reverse circular arc concrete plunge pool bottom plate of the large dam comprises plunge pool bottom plate concrete 1 and surface layer high-strength concrete 2, and the surface layer high-strength concrete 2 is paved on the surface of the plunge pool bottom plate concrete 1. The water storage sponge 3, the heat insulation board 4 and the water pipe 5 are paved on the surface of the surface layer high-strength concrete 2 of the reverse arc concrete plunge pool bottom board. Heated board 4 is laid on the surface of water storage sponge 3, and a plurality of water pipe 5 are laid on the surface of heated board 4, the pipe shaft of water pipe 5 sets up a plurality of branch pipes 6, branch pipe 6 passes heated board 4 contact water storage sponge 3. And the water pipe 5 is laid along the axial direction of the reverse arc concrete plunge pool bottom plate. The water pipe 5 and the branch pipe 6 are made of PVC materials.
The invention also provides a water storage and maintenance method for the bottom plate of the reverse arc concrete plunge pool of the high dam reservoir, which comprises the following steps:
and 4, introducing water into the water pipe inlet to enable the water storage sponge to absorb water, keeping the surface humidity of the bottom plate of the plunge pool through the water storage sponge filled with water, and maintaining the bottom plate of the plunge pool.
The beneficial effects of the invention are:
(1) moisture preservation and maintenance: the water-absorbing and moisture-preserving performance of the water-storing sponge is utilized to provide continuous and uniform water supply on the concrete surface of the bottom plate, and the humidity of the concrete surface can be effectively controlled within the range of the standard requirement.
(2) Heat preservation and wind prevention: through covering the heated board on the surface, can make concrete and outside air keep appropriate inside and outside difference in temperature, play the heat preservation effect, can effectively reduce the evaporation of moisture in the water storage sponge simultaneously and scatter and disappear. After the water storage sponge and the heat insulation board are covered on the surface of the bottom board, the concrete surface of the bottom board is separated from air, and the wind and crack prevention effects are achieved.
(3) Unified control: after all the water pipes are gathered together, the water pipes can be uniformly controlled, and the water flow supply for maintenance is distributed. Meanwhile, the corresponding water-feeding maintenance intensity can be selected according to factors such as the outside air temperature and the humidity, and the effects of timely adjustment and unified control are achieved.
(4) Economy and saving: the materials required by the maintenance structure comprise water storage sponge, heat insulation boards and water pipes, and are low in cost, good in effect and all environment-friendly materials. The water storage sponge absorbs moisture after the structure is filled with water, slowly releases maintenance water, keeps the surface of the bottom plate wet, and meanwhile, the insulation board covered on the surface can effectively reduce moisture loss, so that the water-saving effect is achieved.
Claims (4)
1. The utility model provides an anti-circular arc concrete plunge pool bottom plate retaining maintenance structure, characterized by, including water storage sponge, heated board and water pipe, water storage sponge lays on anti-circular arc concrete plunge pool bottom plate surface, and the heated board is laid on water storage sponge surface, and a plurality of water pipes are laid on the heated board surface, the pipe shaft of water pipe sets up a plurality of branch pipes, the branch pipe passes heated board contact water storage sponge.
2. The reverse arc concrete plunge pool bottom plate water storage and maintenance structure as claimed in claim 1, wherein said water pipes are laid along an axial direction of the reverse arc concrete plunge pool bottom plate.
3. The reverse arc concrete plunge pool bottom plate water storage maintenance structure of claim 1, wherein the water pipes and the branch pipes are made of PVC material.
4. A water storage and maintenance method for a reverse arc concrete plunge pool bottom plate is characterized by comprising the following steps:
according to the size of the concrete blocks of the reverse arc concrete plunge pool bottom plate, paving a first layer of water storage sponge on the reverse arc concrete plunge pool bottom plate in blocks, and uniformly covering the concrete surface;
laying a layer of heat insulation boards on the upper part of the water storage sponge in blocks according to the same size;
a water discharge pipe is laid on the heat insulation plate, holes are drilled at the bottoms of the water pipes at equal intervals, branch pipes are installed at the bottoms of the water pipes, the holes are drilled in the heat insulation plate correspondingly, and the branch pipes are connected to the water storage sponge layer;
and water is introduced into the water pipe inlet to enable the water storage sponge to absorb water, and the water storage sponge filled with water is used for maintaining the surface humidity of the bottom plate of the plunge pool to maintain the bottom plate of the plunge pool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911078095.8A CN111172932A (en) | 2019-11-06 | 2019-11-06 | Water storage maintenance structure and maintenance method for bottom plate of reverse arc concrete plunge pool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911078095.8A CN111172932A (en) | 2019-11-06 | 2019-11-06 | Water storage maintenance structure and maintenance method for bottom plate of reverse arc concrete plunge pool |
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| CN111172932A true CN111172932A (en) | 2020-05-19 |
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| CN201911078095.8A Pending CN111172932A (en) | 2019-11-06 | 2019-11-06 | Water storage maintenance structure and maintenance method for bottom plate of reverse arc concrete plunge pool |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2767103Y (en) * | 2004-11-25 | 2006-03-29 | 张能标 | Concrete maintaining quilt |
| JP2011202454A (en) * | 2010-03-26 | 2011-10-13 | Hazama Corp | Curing sheet for concrete, curing device for concrete, and method of curing concrete using the device |
| CN208934448U (en) * | 2018-10-09 | 2019-06-04 | 诸暨市建磊混凝土有限公司 | A kind of concrete heat-insulation moisture-retention device |
| CN209022251U (en) * | 2018-07-13 | 2019-06-25 | 中国一冶集团有限公司 | Recyclable concrete curing device |
| CN211850970U (en) * | 2019-11-06 | 2020-11-03 | 中国电建集团华东勘测设计研究院有限公司 | Water storage and maintenance structure for bottom plate of reverse arc concrete plunge pool |
-
2019
- 2019-11-06 CN CN201911078095.8A patent/CN111172932A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2767103Y (en) * | 2004-11-25 | 2006-03-29 | 张能标 | Concrete maintaining quilt |
| JP2011202454A (en) * | 2010-03-26 | 2011-10-13 | Hazama Corp | Curing sheet for concrete, curing device for concrete, and method of curing concrete using the device |
| CN209022251U (en) * | 2018-07-13 | 2019-06-25 | 中国一冶集团有限公司 | Recyclable concrete curing device |
| CN208934448U (en) * | 2018-10-09 | 2019-06-04 | 诸暨市建磊混凝土有限公司 | A kind of concrete heat-insulation moisture-retention device |
| CN211850970U (en) * | 2019-11-06 | 2020-11-03 | 中国电建集团华东勘测设计研究院有限公司 | Water storage and maintenance structure for bottom plate of reverse arc concrete plunge pool |
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Application publication date: 20200519 |
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