CN117188396B - Rock-fill dam structure suitable for hydraulic and hydroelectric engineering and construction method thereof - Google Patents
Rock-fill dam structure suitable for hydraulic and hydroelectric engineering and construction method thereof Download PDFInfo
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- CN117188396B CN117188396B CN202311331547.5A CN202311331547A CN117188396B CN 117188396 B CN117188396 B CN 117188396B CN 202311331547 A CN202311331547 A CN 202311331547A CN 117188396 B CN117188396 B CN 117188396B
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- 238000010276 construction Methods 0.000 title claims abstract description 38
- 238000012407 engineering method Methods 0.000 title description 2
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 110
- 239000004575 stone Substances 0.000 claims abstract description 51
- 239000011150 reinforced concrete Substances 0.000 claims abstract description 49
- 238000000034 method Methods 0.000 claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 15
- 230000008569 process Effects 0.000 claims abstract description 13
- 238000013016 damping Methods 0.000 claims abstract description 10
- 238000003805 vibration mixing Methods 0.000 claims abstract description 6
- 239000004567 concrete Substances 0.000 claims description 39
- 229910000831 Steel Inorganic materials 0.000 claims description 30
- 239000010959 steel Substances 0.000 claims description 30
- 238000007493 shaping process Methods 0.000 claims description 18
- 230000003139 buffering effect Effects 0.000 claims description 13
- 238000011049 filling Methods 0.000 claims description 11
- 239000011083 cement mortar Substances 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 7
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 6
- 238000003466 welding Methods 0.000 claims description 6
- 238000001035 drying Methods 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 238000003825 pressing Methods 0.000 claims description 4
- 239000004576 sand Substances 0.000 claims description 4
- 239000004570 mortar (masonry) Substances 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims 2
- 230000007774 longterm Effects 0.000 abstract description 13
- 230000003245 working effect Effects 0.000 abstract description 12
- 230000002265 prevention Effects 0.000 description 16
- 230000000694 effects Effects 0.000 description 13
- 230000002787 reinforcement Effects 0.000 description 10
- 230000035939 shock Effects 0.000 description 8
- 239000004927 clay Substances 0.000 description 7
- 239000000945 filler Substances 0.000 description 5
- 239000011440 grout Substances 0.000 description 4
- 238000007711 solidification Methods 0.000 description 4
- 230000008023 solidification Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
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- 230000002035 prolonged effect Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
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- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 239000011178 precast concrete Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The invention discloses a rock-fill dam structure suitable for hydraulic and hydroelectric engineering and a construction method thereof, and belongs to the technical field of hydraulic engineering. The invention relates to a rock-fill dam structure suitable for water conservancy and hydropower engineering, which comprises a dam protection slope and a drainage base, and further comprises a waterproof protection slope, wherein seepage-proof bottom plates are arranged at the lower ends of the dam protection slope and the waterproof protection slope; the first prefabricated reinforcing plate and the second prefabricated reinforcing plate are respectively arranged on two sides of the reinforced concrete wallboard. The invention solves the problems that the rock-fill dam cannot meet the impact of a river, affects the safety and is unfavorable for long-term use in the actual use process, the invention provides the waterproof revetment, which is prepared by adopting a buffer stone layer formed by combining stones and rubber, the buffer stone layer is prepared by adding rubber blocks and damping to perform vibration mixing, and the dam revetment is assisted on both sides of the river for a long time by the waterproof revetment and the anti-impact revetment with stable shapes, so that the impact strength is reduced and the working effect is improved.
Description
Technical Field
The invention relates to the technical field of hydraulic engineering, in particular to a rock-fill dam structure suitable for hydraulic and hydroelectric engineering and a construction method thereof,
background
Hydropower engineering performs hydroelectric power generation or flood control in a river channel, and a dam is usually built at the river channel. The rock-fill dam is a dam built by filling stone and matching with an anti-seepage body, and has the advantages of fully utilizing local natural materials, adapting to different geological conditions, being simple and convenient in construction method, good in anti-seismic performance and the like.
Chinese patent publication No. CN217078645U discloses a clay core wall rock-fill dam structure, and it is including being fixed in the clay core wall in river course, and the filler layer of making by the stone is all laid to the both sides of clay core wall along the rivers direction, and the filler layer is laid equally in the river course, is located the filler layer of clay core wall upper reaches has laid the first bank protection of making by the gabion stone and the second bank protection of making by precast concrete piece, and first bank protection and second bank protection all are located the filler layer and deviate from the side of clay core wall, and the second bank protection is located the top of first bank protection, is located the filler layer of clay core wall low reaches has laid the second bank protection equally on the side of deviating from the clay core wall. This patent has the effect of improving the barrier properties of the dike.
In the actual use process of the rock-fill dam, the impact of the river cannot be met, the safety is affected, and the long-term use is not facilitated; therefore, the existing requirements are not met, and a rock-fill dam structure suitable for hydraulic and hydroelectric engineering and a construction method thereof are provided.
Disclosure of Invention
The invention aims to provide a rock-fill dam structure suitable for hydraulic and hydroelectric engineering and a construction method thereof, which solve the problems that the rock-fill dam provided in the background art cannot meet the impact of a river in the actual use process, influences the safety and is not beneficial to long-term use.
In order to achieve the above purpose, the present invention provides the following technical solutions: the rock-fill dam structure comprises a dam slope protection and drainage bases, wherein the dam slope protection is arranged on two sides of the drainage bases, and a connecting plate is arranged between the drainage bases and the dam slope protection;
the waterproof slope protection device is arranged on one side of the dam slope protection device, and seepage-proof bottom plates are arranged at the lower ends of the dam slope protection device and the waterproof slope protection device;
the first prefabricated reinforcing plate, the reinforced concrete wallboard and the second prefabricated reinforcing plate are used for keeping the stable position of the dam slope protection, the first prefabricated reinforcing plate, the reinforced concrete wallboard and the second prefabricated reinforcing plate are all installed in the dam slope protection, and the first prefabricated reinforcing plate and the second prefabricated reinforcing plate are respectively arranged on two sides of the reinforced concrete wallboard;
the included angle between the first prefabricated reinforcing plate and the reinforced concrete wallboard and the included angle between the second prefabricated reinforcing plate and the reinforced concrete wallboard are all set to thirty degrees, and the reinforced concrete wallboard penetrates through the dam slope protection and extends to the inside of the seepage-proof bottom plate and is fixedly connected with the seepage-proof bottom plate through rivets.
Preferably, the outside of dam bank protection and waterproof bank protection all is provided with integrated into one piece's transition bank protection, the both sides of drainage base are provided with supplementary bank protection, the centre of drainage base is provided with integrated into one piece's rivers passageway, rivers passageway is used for water conservancy diversion and buffering river, be provided with the waterproof tape between connecting plate and the drainage base.
Preferably, a limit steel plate is connected between the dam slope protection and the waterproof slope protection, a support shaping plate is arranged between the limit steel plate and the drainage base, and the support shaping plate is used for supporting the waterproof slope protection and the drainage base.
Preferably, the dam slope protection is internally provided with a concrete curing layer and a rock-fill layer, the concrete curing layer and the rock-fill layer are separated by a first prefabricated reinforcing plate and a second prefabricated reinforcing plate, and the reinforced concrete wallboard is fixedly connected with the first prefabricated reinforcing plate and the second prefabricated reinforcing plate through reinforcing steel bars respectively.
Preferably, the first reinforcement column is installed to the lower extreme of first prefabricated gusset plate, the second reinforcement column is installed to the lower extreme of second prefabricated gusset plate, the upper end of first reinforcement column and second reinforcement column extends to the inside of first prefabricated gusset plate and second prefabricated gusset plate respectively and first prefabricated gusset plate and second prefabricated gusset plate pass through reinforcing bar fixed connection.
Preferably, the first grouting plate is installed to the lower extreme of first reinforcing bar post, the second grouting plate is installed to the lower extreme of second reinforcing bar post, first grouting plate passes through reinforcing bar fixed connection with support shaping board and reinforced concrete wallboard, the upper end and the prevention of seepage bottom plate fixed connection of second grouting plate embedding prevention of seepage bottom plate, the upper end of prevention of seepage bottom plate is provided with integrated into one piece's grout hole, the internally mounted in grout hole has the honeycomb duct, the honeycomb duct is used for injecting mortar to prevention of seepage bottom plate.
Preferably, the connection base is installed to the below of waterproof bank protection, the connection base is used for connecting drainage base and prevention of seepage bottom plate, the outside of waterproof bank protection is provided with integrated into one piece's protection against shock bank protection, the inside of protection against shock bank protection is provided with the buffering stone layer, the buffering stone layer includes stone and rubber piece.
A construction method of a rock-fill dam structure suitable for hydraulic and hydroelectric engineering comprises the following steps:
step one: preparing a template to a river of the water conservancy and hydropower engineering, arranging the template below the river, pouring concrete, and arranging anti-seepage bottom plates on two sides of the river;
step two: unloading after stone is transported to a field, preparing a drainage base after concrete is coagulated, arranging double-layer templates on two sides of the drainage base, filling a buffer stone layer into the templates, installing steel plates in the middle-layer templates, and disassembling the double-layer templates to prepare the waterproof slope protection;
step three: fixing a support shaping plate above an anti-seepage bottom plate through a prefabricated support shaping plate, arranging a template in the middle of the anti-seepage bottom plate, penetrating steel bars and stirrups in the template to enable the steel bars to be inserted into the anti-seepage bottom plate, pouring concrete in the template to obtain a reinforced concrete wallboard, and arranging a first grouting plate and a second grouting plate on two sides of the reinforced concrete wallboard;
step four: prefabricating plates near the slope protection to obtain a first prefabricating reinforcing plate and a second prefabricating reinforcing plate, paving a rock-fill layer on two sides of the reinforced concrete wallboard and above the impermeable bottom plate, pressing the first prefabricating reinforcing plate and the second prefabricating reinforcing plate above the rock-fill layer, and connecting steel bars through a welding process to fix the first prefabricating reinforcing plate and the second prefabricating reinforcing plate with the first grouting plate and the second grouting plate respectively;
step five: and paving a concrete curing layer between the first prefabricated reinforcing plate, the second prefabricated reinforcing plate and the reinforced concrete wallboard, and pouring cement mortar above the concrete curing layer and the rock-fill layer after paving, so as to finish the construction of the dam slope protection.
Preferably, the anti-seepage bottom plate in the first step adopts concrete with the strength grade of C20, an expansion joint is arranged between the anti-seepage bottom plate and the second grouting plate, and a water-swelling rubber water stop strip is arranged in the expansion joint.
Preferably, the construction of the waterproof slope protection in the second step includes the following steps:
s1: building a double-layer template above the seepage-proofing bottom plate;
s2: transporting qualified stones and sand materials to a construction area by using a forklift, and adding rubber blocks and damping to perform vibration mixing to obtain a buffer stone layer;
s3: after mixing, transporting the buffer stone layer to the upper part of the anti-seepage bottom plate through an excavator, after filling the inside of the template, installing a steel plate in the middle template, disassembling the double-layer template, filling cement mortar between the steel plate and the buffer stone layer after disassembling, and completing the construction of waterproof slope protection;
s4: a waterproof layer is arranged between the waterproof slope protection and the drainage base and the impermeable bottom plate, after standing and drying, the subsequent construction is carried out,
compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the waterproof revetment is prepared by arranging the buffer stone layer formed by combining stones and rubber, the buffer stone layer is prepared by adding the rubber blocks and vibration damping to perform vibration mixing, and the waterproof revetment and the anti-impact revetment with stable shapes are used for enabling the dam revetment to perform auxiliary work on two sides of a river for a long time, so that the impact strength is reduced, the working effect is improved, the stability is good, the service life is prolonged, the safety is good, the working effect of the waterproof structure inside the dam revetment can be maintained, and the long-term stable protection work is realized.
2. According to the invention, the reinforced concrete wallboard is arranged in the middle of the inside of the dam slope protection, the rock-fill layers below the two sides of the reinforced concrete wallboard keep the stable positions of the dam slope protection and the reinforced concrete wallboard in long-term operation, the first prefabricated reinforcing plate and the second prefabricated reinforcing plate are pressed above the rock-fill layers, the first reinforcing columns and the second reinforcing columns are arranged to keep the fixed angles of the reinforcing plates, so that the rock-fill layers are extruded, the sealing effect is kept, meanwhile, the position stability of the first prefabricated reinforcing plate and the second prefabricated reinforcing plate is further improved through the concrete curing layer with higher density, the working effect is better, and the impermeable bottom plate is sealed through the first grouting plate and the second grouting plate, so that the working effect is improved.
Drawings
FIG. 1 is an isometric view of the front view of the present invention;
FIG. 2 is a top perspective view of the present invention;
FIG. 3 is an isometric view of the interior of the present invention;
FIG. 4 is an internal construction diagram of a dam revetment according to the present invention;
FIG. 5 is a step diagram of the construction process of the present invention;
fig. 6 is a construction process step diagram of the waterproof revetment of the present invention.
In the figure: 1. slope protection of a dam; 101. transitional slope protection; 102. limiting steel plates; 103. supporting the shaping plate; 104. a concrete curing layer; 105. a rock-fill material layer; 2. waterproof slope protection; 201. grouting holes; 202. a flow guiding pipe; 203. the base is connected; 204. protection against shock slope protection; 2041. buffering the stone layer; 3. an impermeable bottom plate; 4. a drainage base; 401. a water flow channel; 402. auxiliary slope protection; 403. a connecting plate; 5. a first prefabricated reinforcing plate; 501. a first reinforcing bar column; 502. a first grouting plate; 6. reinforced concrete wallboard; 7. a second prefabricated reinforcing plate; 701. a second reinforcing bar column; 702. and a second grouting plate.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In order to solve the problems that the current rock-fill dam cannot meet the impact of a river, affects the safety and is unfavorable for long-term use in the actual use process, please refer to fig. 1-4, the following technical scheme is provided, and the following technical scheme is provided in this embodiment:
the rock-fill dam structure suitable for the hydraulic and hydroelectric engineering comprises a dam slope protection 1 and drainage bases 4, wherein the dam slope protection 1 is arranged on two sides of the drainage bases 4, and a connecting plate 403 is arranged between the drainage bases 4 and the dam slope protection 1;
the waterproof slope protection device is characterized by further comprising a waterproof slope protection 2 which is arranged on one side of the dam slope protection 1, wherein the lower ends of the dam slope protection 1 and the waterproof slope protection 2 are provided with an impermeable bottom plate 3;
the first prefabricated reinforcing plate 5, the reinforced concrete wallboard 6 and the second prefabricated reinforcing plate 7 are used for keeping the stable position of the dam slope protection 1, the first prefabricated reinforcing plate 5, the reinforced concrete wallboard 6 and the second prefabricated reinforcing plate 7 are all installed in the dam slope protection 1, and the first prefabricated reinforcing plate 5 and the second prefabricated reinforcing plate 7 are respectively arranged on two sides of the reinforced concrete wallboard 6;
the contained angle between first prefabricated gusset plate 5 and second prefabricated gusset plate 7 and reinforced concrete wallboard 6 all sets up to thirty degrees, and reinforced concrete wallboard 6 runs through dam bank protection 1 and extends to inside and the prevention of seepage bottom plate 3 between the prevention of seepage bottom plate 3 through rivet fixed connection, and the security is good, can maintain the work effect of the inside waterproof construction of dam bank protection 1 to realize long-term stable protection work.
The connection base 203 is installed to waterproof bank protection 2's below, the connection base 203 is used for connecting drainage base 4 and prevention of seepage bottom plate 3, waterproof bank protection 2's outside is provided with integrated into one piece's protection against shock bank protection 204, protection against shock bank protection 204's inside is provided with buffering stone layer 2041, buffering stone layer 2041 includes stone and rubber block, waterproof bank protection 2 adopts stone and rubber to make buffering stone layer 2041 that the combination formed, shake and mix through adding rubber block and damping and make buffering stone layer 2041, through waterproof bank protection 2 and protection against shock bank protection 204 of stable in shape, make dam bank protection 1 carry out auxiliary work for a long time in river both sides, reduce impact strength, in order to improve work effect.
Specifically, in operation, discharge after transporting the building stones to the scene, wait that the concrete condenses, make drainage base 4, set up double-deck template in drainage base 4's both sides, fill buffer building stone layer 2041 inside the template, install the steel sheet in the middle level template, dismantle double-deck template, make waterproof bank protection 2, through setting up waterproof bank protection 2, waterproof bank protection 2 adopts stone and rubber to make up buffer building stone layer 2041 that forms, shake and mix through adding rubber block and damping, make buffer building stone layer 2041 through stable in shape waterproof bank protection 2 and protection against shock bank protection 204, make dam bank protection 1 carry out auxiliary operation for a long time in river both sides, reduce impact strength, in order to improve the work effect, and stability is good, in order to promote life, and the security is good, can maintain the inside waterproof construction's of dam bank protection 1 work effect, in order to realize long-term stable protection work.
In order to solve the technical problem that the slope protection structure is unstable and is difficult to maintain the working strength in the prior art, please refer to fig. 1-4, the following technical scheme is provided:
the inside of dam bank protection 1 is provided with concrete curing layer 104 and rock-fill layer 105, separates through first prefabricated gusset plate 5 and the prefabricated gusset plate 7 of second between concrete curing layer 104 and the rock-fill layer 105, and reinforced concrete wallboard 6 passes through reinforcing bar fixed connection with first prefabricated gusset plate 5 and the prefabricated gusset plate 7 of second respectively.
The first reinforcement post 501 is installed to the lower extreme of first prefabricated gusset plate 5, the second reinforcement post 701 is installed to the lower extreme of second prefabricated gusset plate 7, the upper end of first reinforcement post 501 and second reinforcement post 701 extends to the inside of first prefabricated gusset plate 5 and second prefabricated gusset plate 7 respectively and passes through reinforcing bar fixed connection with first prefabricated gusset plate 5 and second prefabricated gusset plate 7, install the fixed angle of first reinforcement post 501 and second reinforcement post 701 maintenance gusset plate, make the windrow material layer 105 receive the extrusion, keep sealed effect, simultaneously, further improve the position stability of first prefabricated gusset plate 5 and second prefabricated gusset plate 7 through the concrete curing layer 104 that density is bigger, the work effect is better, seal the prevention of seepage bottom plate 3 through first mud jacking plate 502 and second mud jacking plate 702, in order to promote the work effect.
The first mud jacking plate 502 is installed to the lower extreme of first reinforcing bar post 501, and the second mud jacking plate 702 is installed to the lower extreme of second reinforcing bar post 701, and first mud jacking plate 502 passes through reinforcing bar fixed connection with support shaping board 103 and reinforced concrete wallboard 6, and the upper end and the prevention of seepage bottom plate 3 fixed connection of prevention of seepage bottom plate 3 are embedded to second mud jacking plate 702, and the upper end of prevention of seepage bottom plate 3 is provided with integrated into one piece's grout hole 201, and the internally mounted of grout hole 201 has honeycomb duct 202, and honeycomb duct 202 is used for injecting mortar to prevention of seepage bottom plate 3.
Specifically, prefabricated plates near the slope protection are prefabricated to prepare a first prefabricated reinforcing plate 5 and a second prefabricated reinforcing plate 7, rock-fill layers 105 are paved on two sides of the reinforced concrete wallboard 6 and above the impermeable bottom plate 3, the first prefabricated reinforcing plate 5 and the second prefabricated reinforcing plate 7 are pressed above the rock-fill layers 105 and are connected with reinforcing steel bars through a welding process, the reinforced concrete wallboard 6 is installed in the middle of the inside of the dam slope protection 1, the reinforced concrete wallboard 6 is kept stable in position on the dam slope protection 1 and the reinforced concrete wallboard 6 in long-term operation, the first prefabricated reinforcing plate 5 and the second prefabricated reinforcing plate 7 are pressed above the reinforced concrete wallboard 105, the fixed angles of the reinforcing plates are kept by installing a first reinforcing column 501 and a second reinforcing column 701, the rock-fill layers 105 are extruded, the sealing effect is kept, meanwhile, the position stability of the first prefabricated reinforcing plate 5 and the second prefabricated reinforcing plate 7 is further improved through a concrete curing layer 104 with higher density, the working effect is better, and the impermeable bottom plate 3 is lifted through a first grouting plate 502 and a second grouting plate 702, so that the working effect is sealed.
In order to solve the technical problems that the slope protection has poor waterproof performance and cannot be used for a long time in the prior art, please refer to fig. 3-4, the following technical scheme is provided:
the outside of dam bank protection 1 and waterproof bank protection 2 all is provided with integrated into one piece's transition bank protection 101, and the both sides of drainage base 4 are provided with supplementary bank protection 402, and the centre of drainage base 4 is provided with integrated into one piece's rivers passageway 401, and rivers passageway 401 is used for water conservancy diversion and buffering river, is provided with the waterproof tape between connecting plate 403 and the drainage base 4.
Be connected with spacing steel sheet 102 between dam bank protection 1 and the waterproof bank protection 2, install between spacing steel sheet 102 and the drainage base 4 and support shaping board 103, support shaping board 103 is used for supporting waterproof bank protection 2 and drainage base 4.
Specifically, in long-term operation, through drainage base 4 cooperation prevention of seepage bottom plate 3, improve the water-proof effects of dam bank protection 1 to improve job stabilization nature, be connected with protection against shock bank protection 204 through supplementary bank protection 402, cushion, improve the adaptability of bank protection, guarantee the security.
A construction method of a rock-fill dam structure suitable for hydraulic and hydroelectric engineering comprises the following steps:
step one: preparing a template to a river of the water conservancy and hydropower engineering, arranging the template below the river, pouring concrete, and arranging anti-seepage bottom plates 3 on two sides of the river;
step two: unloading after stone is transported to a field, preparing a drainage base 4 after concrete is coagulated, arranging double-layer templates on two sides of the drainage base 4, filling a buffer stone layer 2041 into the templates, installing steel plates in the middle-layer templates, and disassembling the double-layer templates to prepare the waterproof slope protection 2;
step three: fixing the support shaping plate 103 above the anti-seepage bottom plate 3 through the prefabricated support shaping plate 103, arranging a template in the middle of the anti-seepage bottom plate 3, penetrating steel bars and stirrups in the template, enabling the steel bars to be inserted into the anti-seepage bottom plate 3, pouring concrete in the template to obtain a reinforced concrete wallboard 6, arranging a first grouting plate 502 and a second grouting plate 702 on two sides of the reinforced concrete wallboard 6, further improving the position stability of the first prefabricated reinforcing plate 5 and the second prefabricated reinforcing plate 7 through a concrete curing layer 104 with higher density, and sealing the anti-seepage bottom plate 3 through the first grouting plate 502 and the second grouting plate 702 to improve the working effect;
step four: prefabricating plates near slope protection to obtain a first prefabricating reinforcing plate 5 and a second prefabricating reinforcing plate 7, paving a rock-fill layer 105 on two sides of the reinforced concrete wallboard 6 and above the impermeable bottom plate 3, pressing the first prefabricating reinforcing plate 5 and the second prefabricating reinforcing plate 7 above the rock-fill layer 105, and connecting steel bars through a welding process to fix the first prefabricating reinforcing plate 5 and the second prefabricating reinforcing plate 7 with a first grouting plate 502 and a second grouting plate 702 respectively;
step five: and (3) paving a concrete curing layer 104 between the first prefabricated reinforcing plate 5, the second prefabricated reinforcing plate 7 and the reinforced concrete wallboard 6, and pouring cement mortar above the concrete curing layer 104 and the rock-fill layer 105 after paving, so as to finish the construction of the dam slope protection 1.
The anti-seepage bottom plate 3 in the first step adopts concrete with the strength grade of C20, an expansion joint is arranged between the anti-seepage bottom plate 3 and the second grouting plate 702, and a water-swelling rubber water stop strip is arranged in the expansion joint.
The construction of the waterproof slope protection 2 in the second step comprises the following steps:
s1: building a double-layer template above the impermeable bottom plate 3;
s2: transporting qualified stones and sand materials to a construction area by using a forklift, and adding rubber blocks and damping to perform vibration mixing to obtain a buffer stone layer 2041;
s3: after mixing, transporting the buffer stone layer 2041 to the upper part of the impermeable bottom plate 3 through an excavator, after filling the inside of the template, installing a steel plate in the middle template, disassembling the double-layer template, filling cement mortar between the steel plate and the buffer stone layer 2041 after disassembling, and completing the construction of the waterproof slope protection 2;
s4: the waterproof layer is arranged between the waterproof slope protection 2, the drainage base 4 and the impermeable bottom plate 3, and after standing and drying, the subsequent construction is carried out.
The buffer stone layer 2041 is prepared by adding rubber blocks and vibration damping and mixing, the waterproof revetment 2 and the anti-impact revetment 204 with stable shapes enable the dam revetment 1 to work in a long-term manner on two sides of a river, so that impact strength is reduced, working effect is improved, stability is good, service life is prolonged, safety is good, working effect of the waterproof structure inside the dam revetment 1 can be maintained, and long-term stable protection work is achieved.
Working principle: preparing a template to a river of a water conservancy and hydropower engineering, arranging a template below the river, pouring concrete, adopting concrete with the strength grade of C20, arranging an expansion joint between an impermeable bottom plate 3 and a second grouting plate 702, arranging a rubber water stop strip which expands when meeting water in the expansion joint, arranging impermeable bottom plates 3 at two sides of the river, arranging a double-layer template above the impermeable bottom plate 3, transporting qualified stones and sand materials to a construction area by using a forklift, adding rubber blocks and damping to perform vibration mixing to prepare a buffer stone layer 2041, transporting the buffer stone layer 2041 to the upper side of the impermeable bottom plate 3 by using an excavator after mixing, installing a steel plate in the middle-layer template, dismantling the double-layer template, filling cement mortar between the steel plate and the buffer stone layer 2041 after dismantling, completing construction of a waterproof slope protection 2, setting waterproof layers between the waterproof slope protection 2, the drainage base 4 and the impermeable bottom plate 3, standing and drying, performing subsequent construction, mixing vibration by adding rubber blocks and damping to prepare a buffer stone layer 2041, performing auxiliary work on both sides of a river for a long time by the waterproof slope protection 2 and the anti-impact slope protection 204 with stable shapes, reducing impact strength to improve the working effect, improving stability, prolonging service life, improving safety, maintaining the working effect of the waterproof structure inside the dam slope protection 1, realizing long-term stable protection work, fixing the supporting and shaping plate 103 above the impermeable bottom plate 3 by the prefabricated supporting and shaping plate 103, arranging a template in the middle of the impermeable bottom plate 3, penetrating steel bars and stirrups inside the template, inserting the steel bars into the impermeable bottom plate 3, pouring concrete inside the template, preparing reinforced concrete wallboard 6, and set up first mud jacking board 502 and second mud jacking board 702 in the both sides of reinforced concrete wallboard 6, the position stability of first prefabricated gusset plate 5 and second prefabricated gusset plate 7 is further improved through the bigger concrete solidification layer 104 of density, the work effect is better, seal the prevention of seepage bottom plate 3 through first mud jacking board 502 and second mud jacking board 702, with promotion work effect, prefabricated panel near the bank protection, make first prefabricated gusset plate 5 and second prefabricated gusset plate 7, lay the rock-fill layer 105 in the both sides of reinforced concrete wallboard 6 and the top of prevention of seepage bottom plate 3, press first prefabricated gusset plate 5 and second prefabricated gusset plate 7 above the rock-fill layer 105, and connect the reinforcing bar through welding process, make first prefabricated gusset plate 5 and second prefabricated gusset plate 7 respectively with first mud jacking board 502 and second mud jacking plate 702, after the laying is accomplished, lay the concrete solidification layer 104 and the concrete solidification layer 105 on the side of concrete solidification layer 104, the construction of dam 1 is accomplished.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The rock-fill dam structure suitable for the hydraulic and hydroelectric engineering comprises a dam slope protection (1) and a drainage base (4), and is characterized in that the dam slope protection (1) is arranged on two sides of the drainage base (4), and a connecting plate (403) is arranged between the drainage base (4) and the dam slope protection (1);
the waterproof protection slope is characterized by further comprising a waterproof protection slope (2) which is arranged on one side of the dam protection slope (1), wherein the lower ends of the dam protection slope (1) and the waterproof protection slope (2) are provided with an impermeable bottom plate (3);
the dam slope protection device comprises a first prefabricated reinforcing plate (5), a reinforced concrete wallboard (6) and a second prefabricated reinforcing plate (7), wherein the first prefabricated reinforcing plate (5), the reinforced concrete wallboard (6) and the second prefabricated reinforcing plate (7) are used for keeping the position of a dam slope protection device (1) stable, are all installed in the dam slope protection device (1), and the first prefabricated reinforcing plate (5) and the second prefabricated reinforcing plate (7) are respectively arranged on two sides of the reinforced concrete wallboard (6);
the included angle between the first prefabricated reinforcing plate (5) and the second prefabricated reinforcing plate (7) and the reinforced concrete wallboard (6) is thirty degrees, and the reinforced concrete wallboard (6) penetrates through the dam slope protection (1) and extends to the inside of the anti-seepage bottom plate (3) to be fixedly connected with the anti-seepage bottom plate (3) through rivets;
the lower end of the first prefabricated reinforcing plate (5) is provided with a first reinforcing bar column (501), the lower end of the second prefabricated reinforcing plate (7) is provided with a second reinforcing bar column (701), and the upper ends of the first reinforcing bar column (501) and the second reinforcing bar column (701) respectively extend to the interiors of the first prefabricated reinforcing plate (5) and the second prefabricated reinforcing plate (7) and are fixedly connected with the first prefabricated reinforcing plate (5) and the second prefabricated reinforcing plate (7) through reinforcing bars;
the grouting device is characterized in that a first grouting plate (502) is arranged at the lower end of the first reinforcing steel bar column (501), a second grouting plate (702) is arranged at the lower end of the second reinforcing steel bar column (701), the first grouting plate (502) is fixedly connected with a supporting and shaping plate (103) and a reinforced concrete wallboard (6) through reinforcing steel bars, the second grouting plate (702) is embedded into the upper end of the seepage-proof bottom plate (3) and is fixedly connected with the seepage-proof bottom plate (3), an integrally formed grouting hole (201) is formed in the upper end of the seepage-proof bottom plate (3), a guide pipe (202) is arranged in the grouting hole (201), and the guide pipe (202) is used for injecting mortar into the seepage-proof bottom plate (3);
the dam slope protection device is characterized in that a concrete curing layer (104) and a rock-fill layer (105) are arranged in the dam slope protection device (1), the concrete curing layer (104) and the rock-fill layer (105) are separated by a first prefabricated reinforcing plate (5) and a second prefabricated reinforcing plate (7), and the reinforced concrete wallboard (6) is fixedly connected with the first prefabricated reinforcing plate (5) and the second prefabricated reinforcing plate (7) through steel bars respectively;
prefabricating plates near the slope protection, manufacturing a first prefabricating reinforcing plate (5) and a second prefabricating reinforcing plate (7), paving a rock-fill layer (105) on two sides of a reinforced concrete wallboard (6) and above an impermeable bottom plate (3), pressing the first prefabricating reinforcing plate (5) and the second prefabricating reinforcing plate (7) above the rock-fill layer (105), connecting reinforcing bars through a welding process, fixing the first prefabricating reinforcing plate (5) and the second prefabricating reinforcing plate (7) with a first grouting plate (502) and a second grouting plate (702) respectively, paving a concrete curing layer (104) between the first prefabricating reinforcing plate (5), the second prefabricating reinforcing plate (7) and the reinforced concrete wallboard (6), and pouring cement mortar above the concrete curing layer (104) and the rock-fill layer (105) after paving is finished, so as to finish construction of the dam (1).
2. The rock-fill dam structure for hydraulic and hydroelectric engineering according to claim 1, wherein: the dam bank protection (1) and waterproof bank protection (2) are all provided with integrated into one piece's transition bank protection (101), the both sides of drainage base (4) are provided with supplementary bank protection (402), the centre of drainage base (4) is provided with integrated into one piece's rivers passageway (401), rivers passageway (401) are used for water conservancy diversion and buffering river, be provided with the waterproof tape between connecting plate (403) and the drainage base (4).
3. The rock-fill dam structure for hydraulic and hydroelectric engineering according to claim 2, wherein: the dam slope protection device is characterized in that a limit steel plate (102) is connected between the dam slope protection device (1) and the waterproof slope protection device (2), a support shaping plate (103) is arranged between the limit steel plate (102) and the drainage base (4), and the support shaping plate (103) is used for supporting the waterproof slope protection device (2) and the drainage base (4).
4. A rock-fill dam structure suitable for hydraulic and hydroelectric engineering according to claim 3, wherein: the waterproof slope protection device is characterized in that a connecting base (203) is arranged below the waterproof slope protection device (2), the connecting base (203) is used for connecting a drainage base (4) and an anti-seepage base plate (3), an integrally formed anti-impact slope protection device (204) is arranged outside the waterproof slope protection device (2), a buffering stone layer (2041) is arranged inside the anti-impact slope protection device (204), and the buffering stone layer (2041) comprises stones and rubber blocks.
5. A construction method of a rock-fill dam structure adapted for hydraulic and hydroelectric engineering according to claim 4, comprising the steps of:
step one: preparing a template to a river of a water conservancy and hydropower project, arranging the template below the river, pouring concrete, and arranging anti-seepage bottom plates (3) on two sides of the river;
step two: unloading after stone is transported to a field, preparing a drainage base (4) after concrete is coagulated, arranging double-layer templates on two sides of the drainage base (4), filling a buffer stone layer (2041) into the templates, installing steel plates in the middle-layer templates, and disassembling the double-layer templates to prepare the waterproof slope protection (2);
step three: fixing a support shaping plate (103) above an anti-seepage bottom plate (3) through a prefabricated support shaping plate (103), arranging a template in the middle of the anti-seepage bottom plate (3), penetrating steel bars and stirrups in the template, enabling the steel bars to be inserted into the anti-seepage bottom plate (3), pouring concrete in the template to obtain a reinforced concrete wallboard (6), and arranging a first grouting plate (502) and a second grouting plate (702) on two sides of the reinforced concrete wallboard (6);
step four: prefabricating plates near slope protection, manufacturing a first prefabricating reinforcing plate (5) and a second prefabricating reinforcing plate (7), paving a rock-fill layer (105) on two sides of a reinforced concrete wallboard (6) and above an impermeable bottom plate (3), pressing the first prefabricating reinforcing plate (5) and the second prefabricating reinforcing plate (7) above the rock-fill layer (105), and connecting reinforcing steel bars through a welding process, so that the first prefabricating reinforcing plate (5) and the second prefabricating reinforcing plate (7) are respectively fixed with a first grouting plate (502) and a second grouting plate (702);
step five: and paving a concrete curing layer (104) between the first prefabricated reinforcing plate (5), the second prefabricated reinforcing plate (7) and the reinforced concrete wallboard (6), and pouring cement mortar above the concrete curing layer (104) and the rock-fill layer (105) after paving, so as to finish the construction of the dam slope protection (1).
6. The construction method of the rock-fill dam structure suitable for the hydraulic and hydroelectric engineering according to claim 5, wherein the construction method comprises the following steps: the anti-seepage bottom plate (3) in the first step adopts concrete with the strength grade of C20, an expansion joint is arranged between the anti-seepage bottom plate (3) and the second grouting plate (702), and a rubber water stop strip which expands when meeting water is arranged in the expansion joint.
7. The construction method of the rock-fill dam structure suitable for hydraulic and hydroelectric engineering according to claim 6, wherein the construction of the waterproof slope protection (2) in the second step comprises the following steps:
s1: building a double-layer template above the impermeable bottom plate (3);
s2: transporting qualified stones and sand materials to a construction area by using a forklift, and adding rubber blocks and damping to perform vibration mixing to obtain a buffering stone layer (2041);
s3: after mixing, transporting the buffer stone layer (2041) to the upper part of the anti-seepage bottom plate (3) through an excavator, after filling the inside of the template, installing a steel plate in the middle template, disassembling the double-layer template, filling cement mortar between the steel plate and the buffer stone layer (2041) after disassembling, and completing the construction of the waterproof slope protection (2);
s4: the waterproof layer is arranged between the waterproof slope protection (2) and the drainage base (4) and the seepage-proofing bottom plate (3), and after standing and drying, the subsequent construction is carried out.
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