CN115434289B - Overflow weir structure of spillway outlet of reservoir synergy expansion engineering and construction method thereof - Google Patents
Overflow weir structure of spillway outlet of reservoir synergy expansion engineering and construction method thereof Download PDFInfo
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- CN115434289B CN115434289B CN202210999174.8A CN202210999174A CN115434289B CN 115434289 B CN115434289 B CN 115434289B CN 202210999174 A CN202210999174 A CN 202210999174A CN 115434289 B CN115434289 B CN 115434289B
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- 238000010276 construction Methods 0.000 title claims abstract description 31
- 238000012407 engineering method Methods 0.000 title description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 78
- 230000000903 blocking effect Effects 0.000 claims abstract description 67
- 238000007789 sealing Methods 0.000 claims abstract description 12
- 210000001503 joint Anatomy 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 5
- 230000002195 synergetic effect Effects 0.000 claims 2
- 230000009286 beneficial effect Effects 0.000 description 9
- 238000012423 maintenance Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000003139 buffering effect Effects 0.000 description 2
- 230000004927 fusion Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B8/00—Details of barrages or weirs ; Energy dissipating devices carried by lock or dry-dock gates
- E02B8/06—Spillways; Devices for dissipation of energy, e.g. for reducing eddies also for lock or dry-dock gates
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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
- E02B3/04—Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
- E02B3/06—Moles; Piers; Quays; Quay walls; Groynes; Breakwaters ; Wave dissipating walls; Quay equipment
-
- 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
- E02B3/04—Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
- E02B3/10—Dams; Dykes; Sluice ways or other structures for dykes, dams, or the like
-
- 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
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Mechanical Engineering (AREA)
- Environmental & Geological Engineering (AREA)
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- Life Sciences & Earth Sciences (AREA)
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Abstract
The invention discloses an overflow weir structure of a spillway outlet of a reservoir synergy expansion project and a construction method thereof, comprising a channel body channel consisting of two side wall plates; one end of the channel body channel is an inlet, and the other end is an outlet; the channel body channel is internally provided with a multi-stage step structure, and the step structure is gradually lowered from an inlet to an outlet; the edge of each step of the step structure is fixed with a broken line type water blocking wall. The construction method of the invention comprises the following steps: s1, pouring a step structure in a channel of a channel body, arranging a sinking groove at the edge of each step of the step structure, and arranging a bolt hole on the sinking groove; s2, connecting a prefabricated broken line type water blocking wall in the sinking groove through bolts, wherein the bottom edge of one side of the broken line type water blocking wall is level with the vertical face of a step connected with the broken line type water blocking wall, and a grouting gap is formed between the bottom edge of the other side of the broken line type water blocking wall and the side wall of the sinking groove; and S3, filling concrete in the grouting gaps to form a concrete sealing connection layer.
Description
Technical Field
The invention relates to the technical field of hydraulic engineering, in particular to an overflow weir structure used at the outlet of a spillway in reservoir synergy and capacity expansion engineering and a construction method thereof.
Background
The spillway is flood control equipment of water conservancy buildings such as reservoirs, and is mostly built on one side of a dam, like a large groove, when the water level in the reservoir exceeds the safety limit, water flows out from the spillway to the downstream, so that the dam is prevented from being destroyed. Which generally includes an intake canal, a control section, a chute, and an outlet canal. The structural design of the control section can greatly influence the impact effect of the downstream river bed. Moreover, due to the strong popularization of the synergy and capacity expansion engineering of the water warehouse in recent years, the effect of spillways is also gradually highlighted. Although spillways are long-standing guard tunnels and are not used frequently, they are of critical importance for the safety protection of dams.
In order to realize effective control of the control section, a plurality of existing spillway structures adopt a step structure, and the step structure can effectively buffer water flow and reduce hydraulic impact. Meanwhile, in order to improve the overflow capacity, the existing dam adopts a folded linear labyrinth weir structure, and the labyrinth weir structure is very suitable for a drainage building with limited drainage width but needs to improve the overflow capacity, and has the characteristics of economy, high efficiency, convenient arrangement, convenient management and the like. Thus, if a stepped structure and a labyrinthine weir structure can be combined, it is more capable of positively contributing to the spillway drainage control.
With this concept, the following two major problems occur: firstly, how to realize the combination of the step structure and the labyrinth weir structure; secondly, as the spillway is practically unused for a long time, the structure laid for a long time is aged, and when the spillway is used, if the structure is damaged, how to maintain the spillway is carried out, the double requirements of simple construction and easy maintenance can be balanced by adopting what type of construction mode.
Therefore, how to provide an overflow weir structure at the outlet of a spillway in a reservoir synergy and capacity expansion project and a construction method thereof is a problem which needs to be solved by the technicians in the field.
Disclosure of Invention
In view of the above, the invention provides an overflow weir structure for a spillway outlet in a reservoir synergy and capacity expansion project and a construction method thereof, and the structure provided by the invention aims to solve the problem of combination of a step structure and a labyrinth weir structure, and the construction method provided by the invention aims to balance the dual requirements of simple construction and easy maintenance.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
an overflow weir structure of a spillway outlet of a reservoir synergy expansion project comprises a channel body channel consisting of two side wall plates; one end of the channel body channel is an inlet, and the other end of the channel body channel is an outlet; the inside of the channel body channel is provided with a multi-stage step structure, and the step structure is gradually lowered from an inlet to an outlet; the edge of each step of the step structure is fixedly provided with a broken line type water blocking wall, and the broken line type water blocking walls are arranged along the length direction of each step of the step structure.
Through the technical scheme, the overflow weir structure of the spillway outlet combines the step structure with the broken-line water blocking wall, the broken-line water blocking wall is arranged at the edge of each step, so that a buffer water tank is formed between the broken-line water blocking wall and the step of each step, the hydraulic buffering of flood discharge water is realized through the multi-stage step structure, the labyrinth weir structure formed by the broken-line water blocking wall also improves the discharge capacity, perfect fusion of the step structure and the labyrinth weir structure is realized, and the performance advantages of the step structure and the labyrinth weir structure are exerted.
Preferably, in the overflow weir structure of the spillway outlet of the reservoir synergy-expansion project, the table top of any one step of the step structure is flush with the top edge of the broken-line type water blocking wall on the next step.
The beneficial effect of adopting above technical scheme lies in: the height of the fold line type water blocking wall is coordinated with the height of the step surface of the step structure, so that the structural characteristics of the step are not damaged, and the buffer water tank is formed, so that the buffer water tank still keeps an orderly step form.
Preferably, in the overflow weir structure of the spillway outlet of the reservoir synergy-expansion project, the edge of each step of the step structure is provided with a sinking groove, the broken-line type water blocking wall is detachably connected in the sinking groove, one side bottom edge of the broken-line type water blocking wall is flush with the vertical surface of the step connected with the broken-line type water blocking wall, a grouting gap is formed between the other side bottom edge of the broken-line type water blocking wall and the side wall of the sinking groove, and a concrete sealing connecting layer is filled in the grouting gap.
The beneficial effect of adopting above technical scheme lies in: the sinking groove is arranged, so that the folded linear water blocking wall can be conveniently limited and fixed, and a grouting gap can be reserved for filling concrete, so that the folded linear water blocking wall can be further fixed and waterproof sealed.
Preferably, in the overflow weir structure of the spillway outlet of the reservoir synergy-expansion project, bolt holes are formed in the sinking grooves, and the broken-line type water blocking wall is fixedly connected with the bolt holes through bolts.
The beneficial effect of adopting above technical scheme lies in: the rapid installation and fixation of the broken-line type water blocking wall can be realized through the connection mode of the bolts and the bolt holes, the construction procedure is simplified, the broken-line type water blocking wall can be prefabricated, and the installation and the construction can be directly carried out on site.
Preferably, in the overflow weir structure of the spillway outlet of the reservoir synergy expansion project, the broken-line water blocking wall comprises a plurality of spliced unit bodies which are in butt joint in sequence; the splicing unit body comprises a bottom plate and a V-shaped baffle plate vertically fixed on the bottom plate; the bottom plate is provided with a connecting hole, the connecting hole is positioned at the inner side of the V-shaped opening of the V-shaped baffle plate, and the two ends of the V-shaped baffle plate are provided with extension butt joint blocks which extend outwards and are aligned with the edge of the bottom plate; the bolts penetrate through the connecting holes to be fixedly connected with the bolt holes, and the bottom plate is tightly propped against the top surface of the sinking groove.
The beneficial effect of adopting above technical scheme lies in: the broken line type water blocking wall is formed by adopting a unit body assembling and combining mode, each spliced unit body can be prefabricated, and the split joint type water blocking wall is assembled on site through bolts, so that the split joint type water blocking wall is simple in splicing mode and convenient to construct.
Preferably, in the overflow weir structure of the spillway outlet of the reservoir synergy-expansion project, the bottom plate is rectangular, and the thickness of the bottom plate is equal to the depth of the sinking groove.
The beneficial effect of adopting above technical scheme lies in: the thickness of the bottom plate is equal to the depth of the sinking groove, so that an integral plane structure is formed with the step surface after the concrete sealing connection layer is poured.
Preferably, in the overflow weir structure of the spillway outlet of the reservoir synergy-expansion project, gaps between the extension butt-joint blocks and the side wall plates are filled with concrete gap-filling layers.
The beneficial effect of adopting above technical scheme lies in: the tightness of the connected spliced unit bodies can be improved through filling of the concrete joint filling layer.
Preferably, in the overflow weir structure of the spillway outlet of the reservoir synergy-expansion project, the V-shaped opening of the V-shaped baffle faces to the inlet.
The beneficial effect of adopting above technical scheme lies in: the V-shaped opening of the V-shaped baffle faces the inlet, so that the fixing position of the bolt is close to one end of the inlet, and when water flow impacts the V-shaped baffle, the bolt has better stability, and the problem of backward overturning of the bottom plate caused by backward movement of the bolt can be prevented.
The invention also provides a construction method of the overflow weir structure of the spillway outlet of the reservoir synergy-expansion project, which comprises the following steps:
s1, pouring the step structure in the channel body channel, opening a sinking groove at the edge of each step of the step structure, and opening a bolt hole on the sinking groove;
s2, connecting the prefabricated broken-line type water blocking wall in the sinking groove through bolts, wherein the bottom edge of one side of the broken-line type water blocking wall is level with the vertical face of the step connected with the broken-line type water blocking wall, and a grouting gap is formed between the bottom edge of the other side of the broken-line type water blocking wall and the side wall of the sinking groove;
and S3, filling concrete in the grouting gaps to form a concrete sealing connection layer.
According to the technical scheme, the construction method provided by the invention is used for prefabricating the broken-line type water blocking wall in a factory and assembling the broken-line type water blocking wall with the step structure on site, so that on one hand, the construction mode is simplified, the construction efficiency is improved, on the other hand, the broken-line type water blocking wall is easy to replace, and under the condition of daily loss or use damage, the broken-line type water blocking wall can be conveniently replaced and maintained, and meanwhile, the double requirements of simplicity in construction and easiness in maintenance are balanced.
Preferably, in the construction method of the overflow weir structure of the spillway outlet of the reservoir synergy and capacity expansion project, the broken-line water blocking wall comprises a plurality of spliced unit bodies which are in butt joint in sequence; the splicing unit body comprises a bottom plate and a V-shaped baffle plate vertically fixed on the bottom plate; the bottom plate is provided with a connecting hole, the connecting hole is positioned at the inner side of the V-shaped opening of the V-shaped baffle plate, and the two ends of the V-shaped baffle plate are provided with extension butt joint blocks which extend outwards and are aligned with the edge of the bottom plate; before the splicing unit body is installed, concrete is smeared on the side face of the extension butt joint block, the bolts penetrate through the connecting holes to be fixedly connected with the bolt holes, and the bottom plate is tightly propped against the top face of the sinking groove.
The beneficial effect of adopting above technical scheme lies in: the broken line type water blocking wall adopts the unit body to assemble the combination form and constitutes, and every concatenation unit body can realize prefabricating, and the scene passes through the bolt assembly, and the concatenation mode is simple, and construction is convenient, before a plurality of unit bodies are assembled and are connected moreover, scribbles the concrete on the side to extending the butt joint piece, can effectively improve the leakproofness of the concatenation unit body of connection.
Compared with the prior art, the invention discloses an overflow weir structure of a spillway outlet of a reservoir synergy and capacity expansion project and a construction method thereof, and has the following beneficial effects:
1. the structure and the method solve the problem of combination of the step structure and the labyrinth weir structure, and balance the double requirements of simple construction and easy maintenance of the step structure and the labyrinth weir structure.
2. According to the invention, the hydraulic buffering is realized by the water flow of flood discharge through the multi-stage step structure, the labyrinth weir structure formed by the broken-line type water blocking wall also improves the drainage capacity, the perfect fusion of the step structure and the labyrinth weir structure is realized, and the performance advantages of the step structure and the labyrinth weir structure are simultaneously exerted.
3. The invention simplifies the construction mode, improves the construction efficiency, ensures that the broken line type water blocking wall is easy to replace, can be conveniently replaced and maintained under the condition of daily loss or use damage, and balances the double requirements of simple construction and easy maintenance.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the structure of an overflow weir structure of a spillway outlet according to the present invention;
FIG. 2 is a schematic structural diagram of a construction method step S1 provided by the invention;
FIG. 3 is a schematic structural diagram of step S2 of the construction method provided by the invention;
FIG. 4 is an enlarged view of portion A of FIG. 3, provided by the present invention;
FIG. 5 is a schematic structural diagram of step S3 of the construction method according to the present invention;
FIG. 6 is an enlarged view of portion B of FIG. 5 in accordance with the present invention;
FIG. 7 is an enlarged view of the splice unit provided by the invention on the opposite side of FIG. 6;
fig. 8 is a schematic structural view of a splice unit body provided by the invention.
Wherein:
1-side wall panels;
2-lane body passage;
21-at the inlet; 22-at the outlet;
3-step structure;
31-a sinking groove; 311-bolt holes; 32-grouting gaps;
4-fold line type water blocking wall;
41-splicing the unit bodies; 411-floor; 4111-connecting holes; 412-V-shaped baffles; 4121-extending abutment;
5-a concrete sealing connection layer;
6-bolts.
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.
Referring to fig. 1 and 7, the embodiment of the invention discloses an overflow weir structure of a spillway outlet of a reservoir synergy-expansion project, which comprises a channel body channel 2 formed by two side wall boards 1; one end of the channel body channel 2 is provided with an inlet 21, and the other end is provided with an outlet 22; the channel body channel 2 is internally provided with a multi-stage step structure 3, and the step structure 3 is gradually lowered from an inlet 21 to an outlet 22; the edge of each step of the step structure 3 is fixed with a broken line type water blocking wall 4, and the broken line type water blocking wall 4 is arranged along the length direction of each step of the step structure 3.
In fig. 1, only the control section portion of the spillway is shown and the subsequent structure is not shown, but it will be apparent that the spillway also includes subsequent chute and outlet sections, but these structures are not central to the present invention and are not shown.
In order to further optimize the technical scheme, the table top of any one step of the step structure 3 is flush with the top edge of the broken line type water blocking wall 4 on the next step.
In order to further optimize the technical scheme, the edge of each step of the step structure 3 is provided with the sinking groove 31, the broken-line type water blocking wall 4 is detachably connected in the sinking groove 31, the bottom edge of one side of the broken-line type water blocking wall 4 is flush with the vertical face of the step connected with the broken-line type water blocking wall, a grouting gap 32 is formed between the bottom edge of the other side of the broken-line type water blocking wall 4 and the side wall of the sinking groove 31, and the grouting gap 32 is filled with the concrete sealing connecting layer 5.
In this embodiment, in order to improve the connection effect of the concrete sealing connection layer 5, a side bottom edge of the fold-line type water blocking wall 4 facing the grouting gap 32 may be serrated to improve the friction force of the poured concrete sealing connection layer 5.
In order to further optimize the technical scheme, bolt holes 311 are formed in the sinking groove 31, and the broken-line type water blocking wall 4 is fixedly connected with the bolt holes 311 through bolts 6.
Referring to fig. 8, the fold-line type water blocking wall 4 includes a plurality of spliced unit bodies 41 which are sequentially butted; the splice unit body 41 includes a bottom plate 411, and a V-shaped baffle 412 vertically fixed to the bottom plate 411; the bottom plate 411 is provided with a connecting hole 4111, the connecting hole 4111 is positioned at the inner side of the V-shaped opening of the V-shaped baffle 412, and the two ends of the V-shaped baffle 412 are provided with extension butt joint blocks 4121 which extend outwards and are aligned with the edge of the bottom plate 411; the bolts 6 pass through the connecting holes 4111 to be fastened to the bolt holes 211, and press the bottom plate 411 against the top surface of the sink 31.
In this embodiment, in order to improve structural integrity, the bottom plate 411 and the V-shaped baffle 412 are both concrete casting structures, and reinforcing steel bars may be added inside to improve structural strength.
In order to further optimize the above technical solution, the bottom plate 411 is rectangular, and the thickness of the bottom plate 411 is equal to the depth of the sink 31.
In order to further optimize the above technical solution, the gaps between the butt-jointed extension butt-joint blocks 4121 and the gaps between the extension butt-joint blocks 4121 and the side wall panels 1 are all filled with concrete gap filling layers.
To further optimize the solution described above, the V-shaped opening of the V-shaped baffle 412 is directed towards the inlet 21.
The construction method of the overflow weir structure of the spillway outlet of the reservoir synergy-expansion project provided by the embodiment comprises the following steps:
s1, referring to fig. 2, pouring a step structure 3 in a channel body channel 2, opening a sinking groove 31 at the edge of each step of the step structure 3, and opening a bolt hole 311 on the sinking groove 31;
s2, referring to fig. 3 and 4, connecting prefabricated broken-line type water blocking walls 4 in the sinking groove 31 through bolts 6, enabling the bottom edge of one side of the broken-line type water blocking walls 4 to be level with the vertical face of the step connected with the broken-line type water blocking walls, and forming grouting gaps 32 between the bottom edge of the other side of the broken-line type water blocking walls 4 and the side wall of the sinking groove 31;
and S3, referring to fig. 5 and 6, filling concrete in the grouting gaps 32 to form the concrete sealing connection layer 5.
In the construction method provided in this embodiment, before the splice unit body 41 is installed, concrete is applied to the side surface of the extension butt joint block 4121, so that the butt joint extension butt joint block 4121 has a certain sealing and waterproof effect.
In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant points refer to the description of the method section.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (7)
1. An overflow weir structure of a spillway outlet of a reservoir synergy expansion project comprises a channel body channel (2) consisting of two side wall plates (1); the device is characterized in that one end of the channel body channel (2) is an inlet (21), and the other end is an outlet (22); the inside of the channel body channel (2) is provided with a multi-stage step structure (3), and the step structure (3) is gradually lowered from the inlet (21) to the outlet (22); the edge of each step of the step structure (3) is fixed with a broken-line type water blocking wall (4), and the broken-line type water blocking walls (4) are arranged along the length direction of each step of the step structure (3);
the edge of each step of the step structure (3) is provided with a sinking groove (31), the broken-line type water blocking wall (4) is detachably connected in the sinking groove (31), one side bottom edge of the broken-line type water blocking wall (4) is flush with the vertical surface of the step connected with the broken-line type water blocking wall, a grouting gap (32) is formed between the other side bottom edge of the broken-line type water blocking wall (4) and the side wall of the sinking groove (31), and a concrete sealing connecting layer (5) is filled in the grouting gap (32);
a bolt hole (311) is formed in the sinking groove (31), and the broken line type water blocking wall (4) is fixedly connected with the bolt hole (311) through a bolt (6);
the broken line type water blocking wall (4) comprises a plurality of spliced unit bodies (41) which are sequentially spliced; the splicing unit body (41) comprises a bottom plate (411) and a V-shaped baffle (412) vertically fixed on the bottom plate (411); the bottom plate (411) is provided with a connecting hole (4111), the connecting hole (4111) is positioned at the inner side of the V-shaped opening of the V-shaped baffle plate (412), and the two ends of the V-shaped baffle plate (412) are provided with extension butt joint blocks (4121) which extend outwards and are aligned with the edge of the bottom plate (411); the bolt (6) passes through the connecting hole (4111) to be fixedly connected with the bolt hole (311), and the bottom plate (411) is tightly propped against the top surface of the sinking groove (31).
2. The overflow weir structure of the spillway outlet of the reservoir synergy-expansion project according to claim 1, wherein the table top of any one step of the step structure (3) is flush with the top edge of the broken-line type water blocking wall (4) on the next step.
3. The overflow weir structure of the spillway outlet of the reservoir synergy-expansion project of claim 1, wherein the bottom plate (411) is rectangular, and the thickness of the bottom plate (411) is equal to the depth of the sinking groove (31).
4. The overflow weir structure of a spillway outlet of a reservoir synergistic expansion project according to claim 1, wherein the gap between the butt-jointed extending butt-jointed blocks (4121) and the gap between the extending butt-jointed blocks (4121) and the side wall plate (1) are filled with concrete gap filling layers.
5. A spillway outlet weir arrangement for a synergistic expansion project of a reservoir according to claim 1 wherein the V-shaped opening of the V-shaped baffle (412) is directed towards the inlet (21).
6. A method of constructing a spillway structure of a spillway outlet of a reservoir synergy-expansion project as claimed in any one of claims 1 to 5, comprising the steps of:
s1, pouring the step structure (3) in the channel body channel (2), opening a sinking groove (31) at the edge of each step of the step structure (3), and opening a bolt hole (311) in the sinking groove (31);
s2, connecting the prefabricated broken-line type water blocking wall (4) in the sinking groove (31) through bolts (6), wherein the bottom edge of one side of the broken-line type water blocking wall (4) is level with the vertical face of the step connected with the broken-line type water blocking wall, and a grouting gap (32) is formed between the bottom edge of the other side of the broken-line type water blocking wall (4) and the side wall of the sinking groove (31);
s3, filling concrete in the grouting gaps (32) to form a concrete sealing connection layer (5).
7. The construction method of the overflow weir structure of the spillway outlet of the reservoir synergy-expansion project according to claim 6, wherein the broken-line type water blocking wall (4) comprises a plurality of spliced unit bodies (41) which are in butt joint in sequence; the splicing unit body (41) comprises a bottom plate (411) and a V-shaped baffle (412) vertically fixed on the bottom plate (411); the bottom plate (411) is provided with a connecting hole (4111), the connecting hole (4111) is positioned at the inner side of the V-shaped opening of the V-shaped baffle plate (412), and the two ends of the V-shaped baffle plate (412) are provided with extension butt joint blocks (4121) which extend outwards and are aligned with the edge of the bottom plate (411); before the splicing unit body (41) is installed, concrete is smeared on the side face of the extension butt joint block (4121), the bolts (6) penetrate through the connecting holes (4111) to be fixedly connected with the bolt holes (311), and the bottom plate (411) is tightly propped against the top face of the sinking groove (31).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210999174.8A CN115434289B (en) | 2022-08-19 | 2022-08-19 | Overflow weir structure of spillway outlet of reservoir synergy expansion engineering and construction method thereof |
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| CN202210999174.8A CN115434289B (en) | 2022-08-19 | 2022-08-19 | Overflow weir structure of spillway outlet of reservoir synergy expansion engineering and construction method thereof |
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| CN115434289B true CN115434289B (en) | 2023-12-12 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204662380U (en) * | 2015-05-27 | 2015-09-23 | 三峡大学 | A kind of bench spillway |
| CN206693187U (en) * | 2017-04-23 | 2017-12-01 | 李欣 | A kind of spillway structure |
| KR101957455B1 (en) * | 2018-10-19 | 2019-03-12 | 정품건설산업 주식회사 | PC labyrinth weir structure and construction method thereof |
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2022
- 2022-08-19 CN CN202210999174.8A patent/CN115434289B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204662380U (en) * | 2015-05-27 | 2015-09-23 | 三峡大学 | A kind of bench spillway |
| CN206693187U (en) * | 2017-04-23 | 2017-12-01 | 李欣 | A kind of spillway structure |
| KR101957455B1 (en) * | 2018-10-19 | 2019-03-12 | 정품건설산업 주식회사 | PC labyrinth weir structure and construction method thereof |
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Address after: 266100 Shandong Province, Qingdao city Laoshan District Songling Road No. 238 Patentee after: OCEAN University OF CHINA Patentee after: Huashui Water Conservancy Engineering Design (Qingdao) Co.,Ltd. Address before: 266100 Shandong Province, Qingdao city Laoshan District Songling Road No. 238 Patentee before: OCEAN University OF CHINA Patentee before: Qingdao Huashui Water Conservancy Engineering Design Co.,Ltd. |