CN115419019A - Seepage-proofing and reinforcing construction method for reservoir dam with staggered joints - Google Patents
Seepage-proofing and reinforcing construction method for reservoir dam with staggered joints Download PDFInfo
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- CN115419019A CN115419019A CN202211216668.0A CN202211216668A CN115419019A CN 115419019 A CN115419019 A CN 115419019A CN 202211216668 A CN202211216668 A CN 202211216668A CN 115419019 A CN115419019 A CN 115419019A
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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
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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
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Abstract
The invention discloses a seepage-proofing reinforcing construction method for a reservoir dam with staggered joints, which relates to the technical field of dam construction and comprises S1 concrete slab preparation, S2 joint slab preparation, S3 porous concrete slab preparation, S4 data measurement, S5 confirmation of module quantity, S6 dam construction and S7 positioning pile driving. The concrete slabs, the joint plates and the concrete slabs with holes are all produced by adopting the moulds, so that the preparation of the outer concrete slabs, the joint plates and the concrete slabs with holes can be finished before the dam is constructed, a constructor only needs to lay the corresponding slabs to a specified site and paint cement mortar, and then the anti-seepage reinforcing construction of the dam can be realized.
Description
Technical Field
The invention relates to the technical field of dam construction, in particular to a reservoir dam seepage-proofing reinforcing construction method with staggered joints.
Background
The dam refers to a dam for intercepting rivers and stopping water, a dam for reservoirs, rivers and the like, and a general reservoir dam mainly comprises a main dam, an auxiliary dam, a normal spillway, an extraordinary spillway, a newly-added extraordinary spillway, a smart main channel culvert pipe and a power station.
At present, the main dam of the dam is usually cast by multiple layers of concrete, and impermeable materials are laid in the multiple layers of concrete layers to realize reinforcement and seepage prevention, but the large-area casting of multiple layers of concrete consumes a long time, and is very easy to be influenced by weather factors to realize the whole construction effect.
In view of the above, research and improvement are made on the existing structure and defects, and a method for seepage-proofing and reinforcing construction of a reservoir dam with staggered joints is provided.
Disclosure of Invention
The invention aims to provide an anti-seepage reinforcing construction method for a reservoir dam with staggered joints, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: the seepage-proofing reinforcing construction method for the reservoir dam with the staggered joints comprises the following steps:
s1, concrete slab preparation:
pouring concrete into the mould to prepare a concrete slab;
s2, preparing a joint plate:
pouring epoxy resin into the mold to obtain a joint plate;
s3, preparing the concrete slab with the holes:
pouring concrete into the mould to obtain a concrete slab with holes;
s4, data measurement:
measuring the whole length xCM of the dam and the distance yCM from the top of the dam to the bottom of the dam;
s4, confirming the number of modules:
confirming concrete plate according to the measured length and width of dam, preparing joint plate and required preparing quantity of concrete plate with hole
S5, dam construction:
laying a soil protection net on the soil layer surface of the dam, laying cement mortar on the surface of the soil protection net, laying the prepared concrete plates and the prepared joint plates on the surface of the cement mortar at intervals, forming a first reinforcing layer by the concrete plates and the joint plates after the cement mortar is solidified, coating the cement mortar on the top end of the first reinforcing layer, placing a second concrete plate in the gap of the joint plates to form a second reinforcing layer, coating the cement mortar on the bottommost position of the second reinforcing layer and the position of the dam bottom after the second reinforcing layer is solidified, and placing the concrete plates with holes at the dam bottom to form a protective layer.
S6, driving the positioning pile:
and aligning the positioning pile with the through hole of the concrete slab with the hole, driving the positioning pile into the soil layer, and filling cement mortar in the gap between the positioning pile and the through hole to finish the fixation of the positioning pile.
Further, in the step S1, the size of the concrete slab mold is 200CM long, 110CM wide and 20CM thick.
Further, in the step S2, the size of the seam plate mold is 60CM of the lower bottom width, 200CM of the lower bottom length, 20CM of the lower bottom thickness, 20CM of the upper bottom width, 200CM of the upper bottom length, and 20CM of the upper bottom thickness.
Further, in the step S2, the size of the concrete slab with holes is 200CM long, 110CM wide, 40CM thick, and 50CM diameter of the middle section through hole.
Further, in the step S5, the required number of concrete slabs is ((x/(110 + 40)) × 2) × ((y-200)/200).
Further, in the step S5, the required number of the joint boards is divided by the number of the concrete boards ÷ 2.
Further, in the step S5, the required number of the perforated concrete plates is x/110.
Further, in the step S7, a static pressure machine is used for driving the positioning pile into the soil layer, and the diameter of the positioning pile is 40CM.
Further, in the step S7, the positioning pile is driven into the soil layer to be vertical to the horizontal plane.
The invention provides a seepage-proofing and reinforcing construction method for a reservoir dam with staggered joints, which has the following beneficial effects:
1. the invention adopts the mode of paving the concrete plates and the joint plates on the dam body in a staggered way, so that the concrete plates can be paved in a plurality of layers, meanwhile, the joint plates are designed in a 'soil' shape, the joints among the concrete plates in the plurality of layers can be skillfully staggered in an alternative arrangement mode, and in addition, the joint plates are made of epoxy resin materials with stronger waterproofness, so that the condition that the soil layer in the dam is loosened because rainwater or water in a reservoir permeates into the soil layer after construction can be effectively avoided.
2. The concrete slabs, the joint plates and the concrete slabs with holes are all produced by adopting the moulds, so that the preparation of the outer concrete slabs, the joint plates and the concrete slabs with holes can be finished before the dam is constructed, in the construction process, a constructor only needs to lay the corresponding slabs to a specified position and paint cement mortar, and then the anti-seepage reinforcement construction of the dam can be realized.
3. After the concrete slab with holes is poured, the protective layer can be formed at the bottommost end of the dam body to support the whole construction structure, in addition, the concrete slab with holes can improve the supporting strength of the concrete slab with holes by inserting the positioning piles into the concrete slab with holes, so that the collapse of modules due to dead weight, mutual extrusion or geological disasters can be effectively avoided, and in addition, the modular design of the method for the integrally reinforced structure can be benefited, so that the concrete slab with holes can realize better supporting effect on the whole reinforced construction.
4. The invention benefits from the modularized treatment of the outer concrete plates, the joint plates and the perforated concrete plates, when a dam with the distance from the top to the bottom of the dam exceeding 50M needs to be reinforced, a group of perforated concrete plates can be added at every 24M of the dam body to carry out complex support on the dam body, so that the integral supporting effect of the dam with a larger gradient can be effectively ensured, and in addition, the integral reinforcing and supporting effect of the dam can be facilitated by the mode.
Drawings
FIG. 1 is a schematic diagram of a splicing structure of a concrete slab and a joint plate in the seepage-proofing and reinforcing construction method of a reservoir dam with staggered joints according to the invention;
FIG. 2 is a schematic structural diagram of a joint plate three-dimensional structure of the seepage-proofing and reinforcing construction method for a reservoir dam with staggered joints of the invention;
FIG. 3 is a schematic perspective view of a concrete slab for an impervious reinforcement construction method of a reservoir dam with staggered joints according to the present invention;
FIG. 4 is a schematic structural view of a concrete slab with holes for seepage-proofing and reinforcing construction method of a reservoir dam with staggered joints according to the invention;
fig. 5 is a schematic diagram of the construction completion effect of the seepage-proofing reinforcing construction method for the reservoir dam with the staggered joints.
Detailed Description
Referring to fig. 1-5, the present invention provides the following technical solutions: the seepage-proofing reinforcing construction method for the reservoir dam with the staggered joints comprises the following steps:
s1, concrete slab preparation:
pouring concrete into a mould with the size of 200CM, the width of 110CM and the thickness of 20CM to prepare a concrete slab;
s2, preparing a joint plate:
pouring epoxy resin into a die with the size of 60CM for the lower bottom, 200CM for the lower bottom, 20CM for the upper bottom, 200CM for the upper bottom and 20CM for the upper bottom to prepare a joint plate;
s3, preparing the concrete slab with the holes:
pouring concrete into a mold with the size of 200CM, the width of 110CM, the thickness of 40CM and the diameter of a middle section through hole of 50CM to prepare a concrete slab with holes;
the first embodiment is as follows:
s4, data measurement:
measuring the whole length xCM of the dam and the distance yCM from the top of the dam to the bottom of the dam;
when the distance yCM from the dam top to the dam bottom is less than 50 m;
s5, confirming the number of modules:
confirming concrete plates, preparation of joint plates and required preparation quantity of concrete plates with holes according to the measured length and width of the dam;
the desired number of concrete slabs is ((x/(110 + 40)). Times.2) × ((y-200)/200);
the required number of the joint boards is the number of concrete boards ÷ 2;
the required number of the perforated concrete plates is x/110;
s6, dam construction:
paving a soil protection net on the surface of a soil layer of the dam, paving cement mortar on the surface of the soil protection net, paving the prepared concrete plates and the prepared joint plates on the surface of the cement mortar at intervals, forming a first reinforcing layer by the concrete plates and the joint plates after the cement mortar is solidified, smearing the cement mortar on the top end of the first reinforcing layer, placing a second concrete plate in a gap of the joint plates to form a second reinforcing layer, smearing the cement mortar at the bottommost position of the second reinforcing layer and the position of the bottom of the dam after the second reinforcing layer is solidified, and placing the concrete plates with holes at the bottom of the dam to form a protective layer.
S7, driving a positioning pile:
and aligning the positioning pile with the diameter of 40CM with the through hole of the concrete slab with the hole, keeping the positioning pile horizontal to the horizontal plane, driving the positioning pile into the soil layer, and filling cement mortar in the gap between the positioning pile and the through hole to finish the fixation of the positioning pile.
The concrete slabs can be paved in a plurality of layers by paving the concrete slabs and the joint slabs on the dam body in a staggered mode, meanwhile, the joint slabs are in a 'soil' shape design, joints among the concrete slabs in the plurality of layers can be skillfully staggered in an alternative arrangement mode, and in addition, the joint slabs are made of epoxy resin materials with strong waterproof performance, so that the condition that soil layers in the dam are loosened due to the fact that rainwater or water in a reservoir permeates into the soil layers after construction can be effectively avoided; the outer concrete plates, the joint plates and the concrete plates with holes are all produced by adopting moulds, so that the preparation of the outer concrete plates, the joint plates and the concrete plates with holes can be finished before dam construction, in the construction process, construction workers only need to lay the corresponding plates to the specified sites and paint cement mortar, and then the anti-seepage reinforcement construction of the dam can be realized, compared with the traditional method of directly pouring on the dam body of the dam, the method can more quickly finish the dam construction, is less influenced by weather factors, and can also ensure that the engineering quality is equivalent to that of pouring a plurality of layers of concrete on the dam body of the dam due to the waterproof effect of the matching use of the concrete plates and the joint plates; after the porous concrete slab is poured, the protective layer can be formed at the bottommost end of the dam body to support the whole construction structure, in addition, the supporting strength of the porous concrete slab can be improved by inserting the positioning piles into the porous concrete slab, collapse caused by dead weight, mutual extrusion or geological disasters among modules can be effectively avoided, and due to the modular design of the overall reinforced structure, the porous concrete slab can realize better supporting effect on the whole reinforcement construction.
Example two:
s4, data measurement:
measuring the whole length xCM of the dam and the distance yCM from the top of the dam to the bottom of the dam;
when the distance yCM from the dam top to the dam bottom is more than 50 m;
s5, confirming the number of modules:
confirming concrete plates, preparation of joint plates and required preparation quantity of concrete plates with holes according to the measured length and width of the dam;
the required number of concrete slabs is
((x/(110+40))×2)×((y-((y/24)×200)/200)；
The required number of the joint boards is the number of concrete boards ÷ 2;
the required number of perforated concrete slabs is (y/24) x (x/110);
s6, dam construction:
laying a soil protection net on the soil layer surface of the dam, laying cement mortar on the surface of the soil protection net, laying the prepared concrete plates and the prepared joint plates on the surface of the cement mortar at intervals, longitudinally laying 24M, after the cement mortar is solidified, forming a first reinforcing layer by the concrete plates and the joint plates, coating the cement mortar on the top end of the first reinforcing layer, placing a second concrete plate in the gap of the joint plates to form a second reinforcing layer, after the second reinforcing layer is solidified, coating the cement mortar on the upper end and the lower end of the second reinforcing layer, placing the concrete plates with holes on the upper side and the lower end of the second reinforcing layer to form a protective layer, and then continuously laying the 24M first reinforcing layer and the second reinforcing layer on the top end of the formed protective layer, and alternately reciprocating until the top of the dam.
S7, driving a positioning pile:
and aligning the positioning pile with the diameter of 40CM with the through hole of the concrete slab with the hole, keeping the positioning pile horizontal to the horizontal plane, driving the positioning pile into the soil layer, and filling cement mortar in the gap between the positioning pile and the through hole to finish the fixation of the positioning pile.
Benefiting from the modularization treatment of outer concrete slab, joint board and foraminiferous concrete slab, when needing to consolidate the dam that the dam crest is to dam bottom distance surpassing 50M, can add a set of foraminiferous concrete slab and carry out the complex support to the dam body at every 24M department of dam body, this can effectively guarantee the whole supporting effect of the great dam of slope, in addition through this mode, also can make the whole reinforcing supporting effect of dam convenient.
The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.
Claims (9)
1. The seepage-proofing reinforcing construction method for the reservoir dam with the staggered joints is characterized by comprising the following steps of:
s1, preparing a concrete slab:
pouring concrete into the mould to prepare a concrete slab;
s2, preparing a joint plate:
pouring epoxy resin into the mold to obtain a joint plate;
s3, preparing the concrete slab with the holes:
pouring concrete into the mould to prepare a concrete slab with holes;
s4, data measurement:
measuring the whole length xCM of the dam and the distance yCM from the top of the dam to the bottom of the dam;
s5, confirming the number of modules:
confirming concrete plate according to the measured length and width of dam, preparing joint plate and required preparing quantity of concrete plate with hole
S6, dam construction:
laying a soil protection net on the soil layer surface of the dam, laying cement mortar on the surface of the soil protection net, laying the prepared concrete plates and the prepared joint plates on the surface of the cement mortar at intervals, forming a first reinforcing layer by the concrete plates and the joint plates after the cement mortar is solidified, coating the cement mortar on the top end of the first reinforcing layer, placing a second concrete plate in the gap of the joint plates to form a second reinforcing layer, coating the cement mortar on the bottommost position of the second reinforcing layer and the position of the dam bottom after the second reinforcing layer is solidified, and placing the concrete plates with holes at the dam bottom to form a protective layer.
S7, driving the positioning pile:
and aligning the positioning pile with the through hole of the concrete slab with the hole, driving the positioning pile into the soil layer, and filling cement mortar in the gap between the positioning pile and the through hole to finish the fixation of the positioning pile.
2. The seepage-proofing and reinforcing construction method for the staggered joint reservoir dam according to claim 1, wherein in the step S1, the size of the concrete plate mold is 200CM in length, 110CM in width and 20CM in thickness.
3. The seepage-proofing and reinforcing construction method for the dislocation-joint reservoir dam according to claim 1, wherein in the step S2, the size of the joint plate mold is 60CM in lower bottom width, 200CM in lower bottom length, 20CM in lower bottom thickness, 20CM in upper bottom width, 200CM in upper bottom length and 20CM in upper bottom thickness.
4. The seepage-proofing and reinforcing construction method for the reservoir dam with the staggered joints according to claim 1, wherein in the step S2, the size of the concrete plate with holes is 200CM long, 110CM wide, 40CM thick and 50CM in diameter of the through holes in the middle section.
5. The method of claim 1, wherein in step S5, the required number of concrete slabs is ((x/(110 + 40)) × 2) × ((y-200)/200).
6. The method of claim 1, wherein in step S5, the number of joint plates is 2 divided by the number of concrete plates.
7. The method for seepage-proofing and reinforcing the reservoir dam with the staggered joints as claimed in claim 1, wherein in the step S5, the required number of the perforated concrete plates is x/110.
8. The seepage-proofing and reinforcing construction method for the staggered joint reservoir dam according to claim 1, wherein in the step S7, the positioning pile is driven into the soil layer by using a static press, and the diameter of the positioning pile is 40CM.
9. The seepage-proofing and reinforcing construction method for the staggered joint reservoir dam according to claim 1, wherein in the step S7, the positioning piles are driven into the soil layer to be vertical to the horizontal plane.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211216668.0A CN115419019A (en) | 2022-10-01 | 2022-10-01 | Seepage-proofing and reinforcing construction method for reservoir dam with staggered joints |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211216668.0A CN115419019A (en) | 2022-10-01 | 2022-10-01 | Seepage-proofing and reinforcing construction method for reservoir dam with staggered joints |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060277856A1 (en) * | 2003-07-17 | 2006-12-14 | Vasquez Ruiz Del Arbol Jose R | Device for forming joints in concrete works |
| CN101831889A (en) * | 2010-05-05 | 2010-09-15 | 河海大学 | Anti-seismic combination slab for earth and rockfill dam and construction method thereof |
| CN108385614A (en) * | 2018-01-25 | 2018-08-10 | 浙江水利水电学院 | A kind of concrete facing board construction method of anti-floating towing force |
| CN109113030A (en) * | 2018-09-13 | 2019-01-01 | 西京学院 | A kind of the panel anti-seismic structure and its construction method of concrete face rockfill dam |
| CN110863404A (en) * | 2019-11-20 | 2020-03-06 | 哈尔滨工业大学 | Continuous prefabricated asphalt pavement and construction method thereof |
| CN111501659A (en) * | 2020-04-22 | 2020-08-07 | 中国科学院西北生态环境资源研究院 | Anti-freezing structure of reservoir dam in cold region and construction method thereof |
-
2022
- 2022-10-01 CN CN202211216668.0A patent/CN115419019A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060277856A1 (en) * | 2003-07-17 | 2006-12-14 | Vasquez Ruiz Del Arbol Jose R | Device for forming joints in concrete works |
| CN101831889A (en) * | 2010-05-05 | 2010-09-15 | 河海大学 | Anti-seismic combination slab for earth and rockfill dam and construction method thereof |
| CN108385614A (en) * | 2018-01-25 | 2018-08-10 | 浙江水利水电学院 | A kind of concrete facing board construction method of anti-floating towing force |
| CN109113030A (en) * | 2018-09-13 | 2019-01-01 | 西京学院 | A kind of the panel anti-seismic structure and its construction method of concrete face rockfill dam |
| CN110863404A (en) * | 2019-11-20 | 2020-03-06 | 哈尔滨工业大学 | Continuous prefabricated asphalt pavement and construction method thereof |
| CN111501659A (en) * | 2020-04-22 | 2020-08-07 | 中国科学院西北生态环境资源研究院 | Anti-freezing structure of reservoir dam in cold region and construction method thereof |
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