CN110747815B - Seepage-proofing and water-stopping method for hydraulic engineering - Google Patents
Seepage-proofing and water-stopping method for hydraulic engineering Download PDFInfo
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- CN110747815B CN110747815B CN201911051172.0A CN201911051172A CN110747815B CN 110747815 B CN110747815 B CN 110747815B CN 201911051172 A CN201911051172 A CN 201911051172A CN 110747815 B CN110747815 B CN 110747815B
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- 238000000034 method Methods 0.000 title claims abstract description 21
- 239000004567 concrete Substances 0.000 claims abstract description 112
- 239000010426 asphalt Substances 0.000 claims abstract description 75
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 60
- 239000002131 composite material Substances 0.000 claims abstract description 50
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 46
- 239000007787 solid Substances 0.000 claims abstract description 9
- 230000009471 action Effects 0.000 claims abstract description 7
- 238000003860 storage Methods 0.000 claims abstract description 7
- 239000002689 soil Substances 0.000 claims abstract description 6
- 239000000835 fiber Substances 0.000 claims description 36
- 230000002787 reinforcement Effects 0.000 claims description 30
- 229910000831 Steel Inorganic materials 0.000 claims description 27
- 239000010959 steel Substances 0.000 claims description 27
- 238000003756 stirring Methods 0.000 claims description 15
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 10
- 239000007788 liquid Substances 0.000 claims description 10
- 239000004568 cement Substances 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 claims description 7
- 230000003487 anti-permeability effect Effects 0.000 claims description 5
- 238000009835 boiling Methods 0.000 claims description 5
- 235000012255 calcium oxide Nutrition 0.000 claims description 5
- 239000000292 calcium oxide Substances 0.000 claims description 5
- 239000003795 chemical substances by application Substances 0.000 claims description 5
- 230000005484 gravity Effects 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 5
- 230000036571 hydration Effects 0.000 claims description 5
- 238000006703 hydration reaction Methods 0.000 claims description 5
- 239000000843 powder Substances 0.000 claims description 5
- 230000008569 process Effects 0.000 claims description 5
- 239000002994 raw material Substances 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 4
- 238000010276 construction Methods 0.000 abstract description 3
- 229910001294 Reinforcing steel Inorganic materials 0.000 abstract 1
- 230000002265 prevention Effects 0.000 description 5
- 150000001875 compounds Chemical class 0.000 description 4
- 241001269524 Dura Species 0.000 description 3
- 241000282414 Homo sapiens Species 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
Classifications
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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
- E02B3/16—Sealings or joints
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2250/00—Production methods
- E02D2250/0007—Production methods using a mold
Abstract
The invention discloses an anti-seepage water-stopping method on hydraulic engineering, in particular to the technical field of hydraulic engineering construction, which comprises the following steps: step one, after the main body structure of the hydraulic engineering dam body is solidified, excavating gullies 0.5 meter deep and 0.5 meter wide at one meter of the bottom of the inner side of the dam body by using an excavator, and leveling soil in the gullies to enable the whole gullies to be regular. According to the invention, by arranging the multilayer waterproof structure, after the dam body finishes water storage, the stainless steel wire mesh on the surface of the asphalt is influenced by the action of water weight and can be slowly embedded into the asphalt layer, at the moment, the two layers of composite geomembranes are adhered together, meanwhile, the temperature of the water body is lower, so that the asphalt is always kept in a solid state, filling concrete is excavated at the bottom of the dam body, and the stainless steel wire mesh and the composite geomembrane on the upper layer are fixed by using the reinforcing steel bars, so that the whole anti-seepage structure is firmer and less prone to falling off, and the anti-seepage and water stopping are more thorough.
Description
Technical Field
The invention relates to the technical field of hydraulic engineering construction, in particular to an anti-seepage water-stopping method for hydraulic engineering.
Background
Hydraulic engineering is an engineering built for controlling and allocating surface water and underground water in nature to achieve the purposes of removing harmful substances and benefiting. Also known as water engineering. Water is a valuable resource essential for human production and life, but its naturally occurring state does not completely meet the needs of human beings. Only when hydraulic engineering is built, water flow can be controlled, flood disasters are prevented, and water quantity is adjusted and distributed to meet the requirements of people on water resources in life and production.
A dam is a water retaining structure which intercepts water flow of river channels to raise the water level or adjust the flow. Can form a reservoir, raise the water level, regulate runoff and concentrate water head, and is used for flood control, water supply, irrigation, hydroelectric power generation, shipping improvement and the like. River regulation buildings for adjusting river conditions and protecting a bank bed are also called dams, such as spur dams, sequential dams, submerged dams and the like, because the dam is constructed by adopting local materials due to huge construction projects, water seepage and water leakage caused by the dam are a big problem which puzzles people, at present, seepage prevention structures are generally adopted to prevent leakage through blocking, but the water leakage phenomenon of the dam body cannot be effectively prevented.
Disclosure of Invention
In order to overcome the above defects in the prior art, embodiments of the present invention provide an anti-seepage water-stopping method for hydraulic engineering, in which a multi-layer waterproof structure is continuously arranged, after a dam body finishes storing water, a stainless steel wire mesh on the asphalt surface is affected by the action of water weight and is slowly embedded into an asphalt layer, at this time, two layers of composite geomembranes are bonded together, and meanwhile, the water temperature is low, so that asphalt is always kept in a solid state, and concrete is filled in the bottom of the dam body, and the stainless steel wire mesh and the composite geomembrane on the upper layer are fixed by using steel bars, so that the whole anti-seepage water-stopping structure is more fastened and is not easy to fall off, and the anti-seepage water-stopping is more thorough.
In order to achieve the purpose, the invention provides the following technical scheme: an anti-seepage water-stopping method for hydraulic engineering comprises the following steps:
step one, after a main body structure of a hydraulic engineering dam body is solidified, excavating gullies 0.5 meter deep and 0.5 meter wide at one meter of the bottom of the inner side of the dam body by using an excavator, and leveling soil in the gullies to enable the whole gullies to be regular;
covering a layer of stainless steel wire mesh with the diameter of 3-5mm on the inner side surface of the dam body, fixing the wire mesh on the inner side surface of the dam body by using rivets, then manufacturing a concrete template, fixing the concrete template on the top of the stainless steel wire mesh, and enabling the distance between the concrete template and the stainless steel wire mesh to be 10-20 cm;
selecting a time period with the temperature lower than 25 ℃ to prepare concrete, selecting cement with low hydration heat and quicklime powder as raw materials, adding an anti-permeability agent and a fiber mixture in the stirring process of the concrete, uniformly stirring the concrete, pouring the concrete into a concrete template, and completely filling and covering the concrete on the inner side surface of the whole dam body;
step four, after concrete pouring is finished, manually pouring moisture on the concrete templates, curing the concrete inside the concrete templates through gaps among the concrete templates by the moisture, and removing the concrete templates after 24 hours;
heating and boiling the asphalt into liquid by using a boiler, adding the Dula fibers into the asphalt, uniformly stirring, uniformly paving the liquid asphalt on the surface of a concrete layer, covering a composite geomembrane on the surface of the asphalt when the asphalt begins to solidify, so that the composite geomembrane is attached to the asphalt, and adhering the composite geomembrane to the surface of the asphalt after the asphalt is completely cooled;
step six, a reinforcement cage is additionally arranged in the gully in the step one, a section of reinforcement is connected to the reinforcement cage to be exposed outside the reinforcement cage, then concrete is filled in the gully, the exposed reinforcement is perpendicular to the poured concrete, and after the concrete is solidified, the reinforcement is perpendicular to the surface of the concrete;
step seven, placing a layer of stainless steel wire mesh on the surface of the composite geomembrane in the step five, connecting the bottom of the stainless steel wire mesh with the steel bars in the step six, fixing the stainless steel wire mesh on the inner side surface of the dam body, covering a plurality of composite geomembranes on the surface of the stainless steel wire mesh, completely covering the stainless steel wire mesh with the composite geomembranes, and fixing the composite geomembrane on the stainless steel wire mesh by using thin steel wires;
step eight, after the hydraulic engineering finishes water storage, the stainless steel wire mesh on the surface of the asphalt is influenced by the action of water gravity and can be slowly embedded into the asphalt layer, at the moment, the two layers of composite geomembranes are attached together, and meanwhile, the temperature of the water body is lower, so that the asphalt is always kept in a solid state.
In a preferred embodiment, in the third step, the fiber mixture is specifically dura fiber and plastic steel fiber, and the mixing ratio of the dura fiber to the plastic steel fiber is 3: 1.
In a preferred embodiment, in the fifth step, the paving thickness of the asphalt is 12-18 cm.
In a preferred embodiment, in the fifth step, the mass ratio of the dura fiber to the asphalt is 1: 20.
The invention has the technical effects and advantages that:
1. according to the invention, a layer of stainless steel wire mesh is laid on one side of the dam body for water storage to serve as a structural support, then a layer of concrete layer is laid, and the Dula limiting and the plastic steel fibers are added into the concrete, so that the bonding between the aggregate inside the concrete and the cement is provided, the impermeability is improved, and primary waterproof is formed;
2. paving asphalt and a composite geomembrane on the surface of the concrete to form a second layer of waterproof, then arranging a layer of steel wire mesh on the surfaces of the asphalt and the composite geomembrane, and paving a second layer of composite geomembrane on the steel wire mesh to form a third layer of waterproof;
3. after the dam body accomplished the retaining, the stainless steel wire net on pitch surface receives the influence of water weight power, can slowly imbed to the inside on pitch layer, and at this moment, two-layer compound geomembrane laminating is in the same place, and the water temperature is lower simultaneously, makes pitch remain the state at the solid throughout to at the excavation filled concrete of dam body bottom, utilize the stainless steel wire net and the compound geomembrane on the fixed upper strata of reinforcing bar, make whole prevention of seepage water structure more fasten, be difficult for droing, make prevention of seepage stagnant water more thoroughly.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1:
an anti-seepage water-stopping method for hydraulic engineering comprises the following steps:
step one, after a main body structure of a hydraulic engineering dam body is solidified, excavating gullies 0.5 meter deep and 0.5 meter wide at one meter of the bottom of the inner side of the dam body by using an excavator, and leveling soil in the gullies to enable the whole gullies to be regular;
covering a layer of stainless steel wire mesh with the diameter of 3mm on the inner side surface of the dam body, fixing the wire mesh on the inner side surface of the dam body by using rivets, then manufacturing a concrete template, fixing the concrete template on the top of the stainless steel wire mesh, wherein the distance between the concrete template and the stainless steel wire mesh is 10 cm;
selecting a time period with the temperature lower than 25 ℃ to prepare concrete, selecting cement with low hydration heat and quicklime powder as raw materials, adding an anti-permeability agent, a dural fiber and a plastic steel fiber in the stirring process of the concrete, wherein the mixing ratio of the dural fiber to the plastic steel fiber is 3:1, and pouring the concrete into a concrete template after uniformly stirring the concrete so that the concrete is completely filled and covers the inner side surface of the whole dam body;
step four, after concrete pouring is finished, manually pouring moisture on the concrete templates, curing the concrete inside the concrete templates through gaps among the concrete templates by the moisture, and removing the concrete templates after 24 hours;
heating and boiling the asphalt into liquid by using a boiler, adding the Dora fiber into the asphalt, wherein the mass ratio of the Dora fiber to the asphalt is 1:20, uniformly stirring, uniformly paving the liquid asphalt on the surface of a concrete layer, paving the asphalt with the thickness of 12cm, covering a composite geomembrane on the surface of the asphalt when the asphalt begins to solidify, so that the composite geomembrane is attached to the asphalt, and after the asphalt is completely cooled, adhering the composite geomembrane to the surface of the asphalt;
step six, a reinforcement cage is additionally arranged in the gully in the step one, a section of reinforcement is connected to the reinforcement cage to be exposed outside the reinforcement cage, then concrete is filled in the gully, the exposed reinforcement is perpendicular to the poured concrete, and after the concrete is solidified, the reinforcement is perpendicular to the surface of the concrete;
step seven, placing a layer of stainless steel wire mesh on the surface of the composite geomembrane in the step five, connecting the bottom of the stainless steel wire mesh with the steel bars in the step six, fixing the stainless steel wire mesh on the inner side surface of the dam body, covering a plurality of composite geomembranes on the surface of the stainless steel wire mesh, completely covering the stainless steel wire mesh with the composite geomembranes, and fixing the composite geomembrane on the stainless steel wire mesh by using thin steel wires;
step eight, after the hydraulic engineering finishes water storage, the stainless steel wire mesh on the surface of the asphalt is influenced by the action of water gravity and can be slowly embedded into the asphalt layer, at the moment, the two layers of composite geomembranes are attached together, and meanwhile, the temperature of the water body is lower, so that the asphalt is always kept in a solid state.
In this embodiment, the water seepage situation of the hydraulic engineering is specifically as follows:
example 2:
an anti-seepage water-stopping method for hydraulic engineering comprises the following steps:
step one, after a main body structure of a hydraulic engineering dam body is solidified, excavating gullies 0.5 meter deep and 0.5 meter wide at one meter of the bottom of the inner side of the dam body by using an excavator, and leveling soil in the gullies to enable the whole gullies to be regular;
covering a layer of stainless steel wire mesh with the diameter of 5mm on the inner side surface of the dam body, fixing the wire mesh on the inner side surface of the dam body by using rivets, then manufacturing a concrete template, fixing the concrete template on the top of the stainless steel wire mesh, and enabling the distance between the concrete template and the stainless steel wire mesh to be 20 cm;
selecting a time period with the temperature lower than 25 ℃ to prepare concrete, selecting cement with low hydration heat and quicklime powder as raw materials, adding an anti-permeability agent, a dural fiber and a plastic steel fiber in the stirring process of the concrete, wherein the mixing ratio of the dural fiber to the plastic steel fiber is 3:1, and pouring the concrete into a concrete template after uniformly stirring the concrete so that the concrete is completely filled and covers the inner side surface of the whole dam body;
step four, after concrete pouring is finished, manually pouring moisture on the concrete templates, curing the concrete inside the concrete templates through gaps among the concrete templates by the moisture, and removing the concrete templates after 24 hours;
heating and boiling the asphalt into liquid by using a boiler, adding the Dora fiber into the asphalt, wherein the mass ratio of the Dora fiber to the asphalt is 1:20, uniformly stirring, uniformly paving the liquid asphalt on the surface of a concrete layer, paving the asphalt with the thickness of 18cm, covering a composite geomembrane on the surface of the asphalt when the asphalt begins to solidify, so that the composite geomembrane is attached to the asphalt, and after the asphalt is completely cooled, adhering the composite geomembrane to the surface of the asphalt;
step six, a reinforcement cage is additionally arranged in the gully in the step one, a section of reinforcement is connected to the reinforcement cage to be exposed outside the reinforcement cage, then concrete is filled in the gully, the exposed reinforcement is perpendicular to the poured concrete, and after the concrete is solidified, the reinforcement is perpendicular to the surface of the concrete;
step seven, placing a layer of stainless steel wire mesh on the surface of the composite geomembrane in the step five, connecting the bottom of the stainless steel wire mesh with the steel bars in the step six, fixing the stainless steel wire mesh on the inner side surface of the dam body, covering a plurality of composite geomembranes on the surface of the stainless steel wire mesh, completely covering the stainless steel wire mesh with the composite geomembranes, and fixing the composite geomembrane on the stainless steel wire mesh by using thin steel wires;
step eight, after the hydraulic engineering finishes water storage, the stainless steel wire mesh on the surface of the asphalt is influenced by the action of water gravity and can be slowly embedded into the asphalt layer, at the moment, the two layers of composite geomembranes are attached together, and meanwhile, the temperature of the water body is lower, so that the asphalt is always kept in a solid state.
Example 3:
an anti-seepage water-stopping method for hydraulic engineering comprises the following steps:
step one, after a main body structure of a hydraulic engineering dam body is solidified, excavating gullies 0.5 meter deep and 0.5 meter wide at one meter of the bottom of the inner side of the dam body by using an excavator, and leveling soil in the gullies to enable the whole gullies to be regular;
covering a layer of stainless steel wire mesh with the diameter of 4mm on the inner side surface of the dam body, fixing the wire mesh on the inner side surface of the dam body by using rivets, then manufacturing a concrete template, fixing the concrete template on the top of the stainless steel wire mesh, and enabling the distance between the concrete template and the stainless steel wire mesh to be 15 cm;
selecting a time period with the temperature lower than 25 ℃ to prepare concrete, selecting cement with low hydration heat and quicklime powder as raw materials, adding an anti-permeability agent, a dural fiber and a plastic steel fiber in the stirring process of the concrete, wherein the mixing ratio of the dural fiber to the plastic steel fiber is 3:1, and pouring the concrete into a concrete template after uniformly stirring the concrete so that the concrete is completely filled and covers the inner side surface of the whole dam body;
step four, after concrete pouring is finished, manually pouring moisture on the concrete templates, curing the concrete inside the concrete templates through gaps among the concrete templates by the moisture, and removing the concrete templates after 24 hours;
heating and boiling the asphalt into liquid by using a boiler, adding the Dora fiber into the asphalt, wherein the mass ratio of the Dora fiber to the asphalt is 1:20, uniformly stirring, uniformly paving the liquid asphalt on the surface of a concrete layer, paving the asphalt with the thickness of 15cm, covering a composite geomembrane on the surface of the asphalt when the asphalt begins to solidify, so that the composite geomembrane is attached to the asphalt, and after the asphalt is completely cooled, adhering the composite geomembrane to the surface of the asphalt;
step six, a reinforcement cage is additionally arranged in the gully in the step one, a section of reinforcement is connected to the reinforcement cage to be exposed outside the reinforcement cage, then concrete is filled in the gully, the exposed reinforcement is perpendicular to the poured concrete, and after the concrete is solidified, the reinforcement is perpendicular to the surface of the concrete;
step seven, placing a layer of stainless steel wire mesh on the surface of the composite geomembrane in the step five, connecting the bottom of the stainless steel wire mesh with the steel bars in the step six, fixing the stainless steel wire mesh on the inner side surface of the dam body, covering a plurality of composite geomembranes on the surface of the stainless steel wire mesh, completely covering the stainless steel wire mesh with the composite geomembranes, and fixing the composite geomembrane on the stainless steel wire mesh by using thin steel wires;
step eight, after the hydraulic engineering finishes water storage, the stainless steel wire mesh on the surface of the asphalt is influenced by the action of water gravity and can be slowly embedded into the asphalt layer, at the moment, the two layers of composite geomembranes are attached together, and meanwhile, the temperature of the water body is lower, so that the asphalt is always kept in a solid state.
Through the three groups of embodiments, three seepage-proofing and water-stopping methods on the hydraulic engineering can be obtained, the three seepage-proofing and water-stopping methods on the hydraulic engineering are respectively tested, and then data of seepage-proofing and water-stopping measures of the common hydraulic engineering are taken and compared, so that the seepage-proofing and water-stopping capabilities of the seepage-proofing and water-stopping methods on the hydraulic engineering in the three groups of embodiments are improved differently, wherein the seepage-proofing and water-stopping capabilities in embodiment 2 are the best and the highest values, and the data pairs are as follows:
laying a layer of stainless steel wire mesh on one side of the dam body for structure support, then laying a layer of concrete layer, and adding a Dula stop and plastic steel fibers into the concrete to provide bonding between aggregate in the concrete and cement, improve the impermeability and form primary waterproof;
paving asphalt and a composite geomembrane on the surface of the concrete to form a second layer of waterproof, then arranging a layer of steel wire mesh on the surfaces of the asphalt and the composite geomembrane, and paving a second layer of composite geomembrane on the steel wire mesh to form a third layer of waterproof;
after the dam body accomplished the retaining, the stainless steel wire net on pitch surface receives the influence of water weight power, can slowly imbed to the inside on pitch layer, and at this moment, two-layer compound geomembrane laminating is in the same place, and the water temperature is lower simultaneously, makes pitch remain the state at the solid throughout to at the excavation filled concrete of dam body bottom, utilize the stainless steel wire net and the compound geomembrane on the fixed upper strata of reinforcing bar, make whole prevention of seepage water structure more fasten, be difficult for droing, make prevention of seepage stagnant water more thoroughly.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (4)
1. An anti-seepage water-stopping method on hydraulic engineering is characterized by comprising the following steps:
step one, after a main body structure of a hydraulic engineering dam body is solidified, excavating gullies 0.5 meter deep and 0.5 meter wide at one meter of the bottom of the inner side of the dam body by using an excavator, and leveling soil in the gullies to enable the whole gullies to be regular;
covering a layer of stainless steel wire mesh with the diameter of 3-5mm on the inner side surface of the dam body, fixing the wire mesh on the inner side surface of the dam body by using rivets, then manufacturing a concrete template, fixing the concrete template on the top of the stainless steel wire mesh, and enabling the distance between the concrete template and the stainless steel wire mesh to be 10-20 cm;
selecting a time period with the temperature lower than 25 ℃ to prepare concrete, selecting cement with low hydration heat and quicklime powder as raw materials, adding an anti-permeability agent and a fiber mixture in the stirring process of the concrete, uniformly stirring the concrete, pouring the concrete into a concrete template, and completely filling and covering the concrete on the inner side surface of the whole dam body;
step four, after concrete pouring is finished, manually pouring moisture on the concrete templates, curing the concrete inside the concrete templates through gaps among the concrete templates by the moisture, and removing the concrete templates after 24 hours;
heating and boiling the asphalt into liquid by using a boiler, adding the Dula fibers into the asphalt, uniformly stirring, uniformly paving the liquid asphalt on the surface of a concrete layer, covering a composite geomembrane on the surface of the asphalt when the asphalt begins to solidify, so that the composite geomembrane is attached to the asphalt, and adhering the composite geomembrane to the surface of the asphalt after the asphalt is completely cooled;
step six, a reinforcement cage is additionally arranged in the gully in the step one, a section of reinforcement is connected to the reinforcement cage to be exposed outside the reinforcement cage, then concrete is filled in the gully, the exposed reinforcement is perpendicular to the poured concrete, and after the concrete is solidified, the reinforcement is perpendicular to the surface of the concrete;
step seven, placing a layer of stainless steel wire mesh on the surface of the composite geomembrane in the step five, connecting the bottom of the stainless steel wire mesh with the steel bars in the step six, fixing the stainless steel wire mesh on the inner side surface of the dam body, covering a plurality of composite geomembranes on the surface of the stainless steel wire mesh, completely covering the stainless steel wire mesh with the composite geomembranes, and fixing the composite geomembrane on the stainless steel wire mesh by using thin steel wires;
step eight, after the hydraulic engineering finishes water storage, the stainless steel wire mesh on the surface of the asphalt is influenced by the action of water gravity and can be slowly embedded into the asphalt layer, and at the moment, the two layers of composite geomembranes are attached together to enable the asphalt to be always kept in a solid state.
2. The seepage-proofing and water-stopping method for the hydraulic engineering according to claim 1, which is characterized in that: in the third step, the fiber mixture is specifically a dural fiber and a plastic steel fiber, and the mixing ratio of the dural fiber to the plastic steel fiber is 3: 1.
3. The seepage-proofing and water-stopping method for the hydraulic engineering according to claim 1, which is characterized in that: in the fifth step, the paving thickness of the asphalt is 12-18 cm.
4. The seepage-proofing and water-stopping method for the hydraulic engineering according to claim 1, which is characterized in that: in the fifth step, the mass ratio of the dural fiber to the asphalt is 1: 20.
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| RU2460846C2 (en) * | 2010-09-15 | 2012-09-10 | ПАО "Укргидропроект" | Rock fill dam with asphalt-concrete diaphragm |
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| CN206663903U (en) * | 2017-04-17 | 2017-11-24 | 西京学院 | A kind of pitch geomembrane composite anti-penetrating material |
| CN207828910U (en) * | 2017-10-23 | 2018-09-07 | 中国电建集团贵阳勘测设计研究院有限公司 | A kind of novel double-layer geomembrane anti-seepage structure |
| CN108343033A (en) * | 2018-03-21 | 2018-07-31 | 刘红广 | A kind of water seepage prevention method in hydraulic engineering |
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