CN218757308U - Annular structure seam structure between riverbed dam foundation gallery and bank slope gallery concrete - Google Patents
Annular structure seam structure between riverbed dam foundation gallery and bank slope gallery concrete Download PDFInfo
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- CN218757308U CN218757308U CN202222025843.XU CN202222025843U CN218757308U CN 218757308 U CN218757308 U CN 218757308U CN 202222025843 U CN202222025843 U CN 202222025843U CN 218757308 U CN218757308 U CN 218757308U
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Abstract
The utility model discloses a circumferential structure seam structure between the concrete of a riverbed dam foundation gallery and a bank slope gallery, which comprises a first-stage concrete gallery of the riverbed dam foundation gallery and a first-stage concrete gallery of the bank slope gallery, wherein the first-stage concrete gallery of the riverbed dam foundation gallery is butted with the first-stage concrete gallery of the bank slope gallery; the first-stage concrete gallery of the riverbed dam foundation gallery and the first-stage concrete gallery of the bank slope gallery are provided with adjacent annular preformed grooves at the inner sides of the butt joint ends, the annular preformed grooves are filled with second-stage concrete respectively, the annular structural joint comprises an annular structural joint between the riverbed dam foundation gallery and the first-stage concrete of the bank slope gallery and an annular structural joint between the second-stage concrete, and water stopping structures are arranged in the two annular structural joints respectively. The utility model discloses satisfy between riverbed soft foundation and bank slope basement rock at dam body load and reservoir water effect down the adaptability requirement that construction period and retaining period corridor concrete structure warp to complicated three-dimensional.
Description
Technical Field
The utility model belongs to the technical field of water conservancy, water and electricity, pumped storage engineering, especially, relate to a hoop structure seam structure between riverbed dam foundation corridor and bank slope corridor concrete.
Background
The construction of earth-rock dams at riverbed deep and thick covering layer dam foundations is a technical problem in water conservancy and hydropower engineering, wherein the rock-fill dams with core walls (earth core walls or asphalt core walls) have better adaptability to the dam foundations. Due to the functional requirements of grouting construction, monitoring and detecting, inspection tour, traffic, drainage and the like of the dam foundation and the bank slope foundation, foundation galleries are generally required to be arranged in the riverbed dam foundation and the bank slope foundation and are communicated with each other. Because the soft foundation gallery of the riverbed covering layer and the bank slope bedrock gallery are subjected to dam filling load action in the construction period, obvious vertical settlement and horizontal river direction horizontal deformation difference exist, and meanwhile, under the action of reservoir water in the operation period, obvious horizontal deformation difference exists along the river direction, the connection structure between the foundation gallery of the riverbed covering layer and the concrete of the bank slope bedrock gallery is in a complex three-way deformation state, is a weak part for seepage prevention and structure safety, and has the capability and reliability of adapting to uneven deformation, which are key problems of structural design.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the above-mentioned technical problem who exists among the prior art, provide a hoop structure seam structure between riverbed dam foundation corridor and bank slope corridor concrete, can realize riverbed foundation corridor and arrange that concrete structure safe and reliable is connected between the foundation corridor.
In order to solve the technical problem, the utility model discloses a following technical scheme:
a circumferential structural seam structure between concrete of a riverbed dam foundation gallery and a bank slope gallery comprises a first-stage concrete gallery of the riverbed dam foundation gallery and a first-stage concrete gallery of the bank slope gallery, wherein the first-stage concrete gallery of the riverbed dam foundation gallery is butted with the first-stage concrete gallery of the bank slope gallery; the first-stage concrete gallery of the riverbed dam foundation gallery and the first-stage concrete gallery of the bank slope gallery are provided with adjacent annular preformed grooves at the inner sides of the butt joint ends, the annular preformed grooves are filled with second-stage concrete respectively, the annular structural joint comprises an annular structural joint between the riverbed dam foundation gallery and the first-stage concrete of the bank slope gallery and an annular structural joint between the second-stage concrete, and water stopping structures are arranged in the two annular structural joints respectively. Through the setting of annular preformed groove, the construction of second phase concrete of can being convenient for improves the connection effect between first phase concrete corridor and the second phase concrete, makes things convenient for the setting of stagnant water structure simultaneously, guarantees the stagnant water effect of hoop structure seam.
Further, the first-stage concrete gallery is an annular closed structure with the cross-sectional profile consistent with that of the riverbed dam foundation gallery and the bank slope gallery, and a cavity serving as a passage part of the gallery is arranged in the first-stage concrete gallery.
Further, the water stopping structure comprises an SR water stopping strip and a smearing epoxy water stopping strip, the SR water stopping strip is arranged in the first-stage concrete gallery and separates annular structural joints, and the smearing epoxy water stopping strip is arranged between the first-stage concrete gallery and the second-stage concrete and separates the annular structural joints. Through the SR waterstop and the setting of paining the epoxy waterstop, can satisfy connection structure prevention of seepage confined requirement, also can adapt to under dam body load and the reservoir water effect in construction period and water storage period corridor concrete structure to the adaptability requirement of complicated three-dimensional deformation.
Further, the first-stage concrete gallery is provided with a rubber water stop strip, and the rubber water stop strip is arranged on the circumferential structural joint. The rubber water stop strip is arranged in the first-stage concrete gallery, so that the water stop and seepage prevention effects of the concrete can be further improved.
Furthermore, the second-stage concrete is provided with a water-stopping copper sheet, and the water-stopping copper sheet is arranged on the circumferential structural seam. Through the setting of stagnant water copper sheet, can improve the stagnant water prevention of seepage effect of second stage concrete.
Furthermore, stagnant water copper sheet includes kink and connecting portion, and the both sides of kink are located to connecting portion, and the kink protrusion is in connecting portion. Connecting portion are straight design, can improve the area of contact with second phase concrete, improve the wireless connection effect of stagnant water copper sheet and second phase concrete. Filling that the protruding design of kink can be better can provide certain support when the hoop structure seam is flexible to be out of shape in the hoop structure seam in order not to influence the stagnant water effect.
Further, roughening treatment is carried out on the contact surface of the primary concrete gallery and the secondary concrete. Through handling at the contact surface chisel hair, can improve and paint the adhesion effect of epoxy waterstop on the concrete and improve the connection effect of paining the epoxy waterstop.
Further, the top surface of the SR waterstop is arc-shaped. The SR sealing rod with the arc-shaped surface can play a role in guiding, disperse water flow, avoid water seepage to enter a circumferential structural seam, and improve the water stopping effect.
The utility model discloses owing to adopted above-mentioned technical scheme, following beneficial effect has:
the utility model discloses can ensure that concrete structure safe and reliable is connected between deep overburden bed basis corridor of earth and rockfill dam and the bank slope basement rock corridor, can satisfy connection structure prevention of seepage confined requirement, also can adapt to simultaneously between riverbed soft foundation and the bank slope basement rock under dam body load and reservoir action adaptability requirement that construction phase and retaining phase corridor concrete structure warp to complicated three-dimensional, solve among the earth and rockfill dam engineering the key technical problem in the concrete structure design between deep overburden bed basis corridor and the bank slope basement rock corridor.
Drawings
The present invention will be further explained with reference to the accompanying drawings:
FIG. 1 is a schematic view of the connection structure of a medium river bed dam foundation gallery and a bank slope gallery of the present invention;
FIG. 2 isbase:Sub>A cross-sectional view taken along line A-A of FIG. 1;
fig. 3 is a cross-sectional view of B-B in fig. 2.
In the figure, 1-first stage concrete gallery; 2-second stage concrete; 3-circumferential structural sewing; 4-reserving a groove; 5-SR water stop strip; 6-smearing an epoxy water stop; 7-rubber water stop strips; 8-water stop copper sheet; 9-bending part; 10-a connecting part; 11-concrete core earth-rock dam; 12-deep blanket; 13-bedrock; 15-riverbed dam foundation galleries; 16-a bank slope corridor.
Detailed Description
Aiming at the projects of building water conservancy, hydropower, pumping and storage and the like of the clay core wall or asphalt concrete core earth-rock dam 11 on the deep covering layer 12 of the riverbed, the riverbed foundation of the clay core wall or asphalt concrete core earth-rock dam 11 is the deep covering layer 12, and the bank slope foundation on two sides is the bedrock 13. A riverbed foundation covering layer is provided with a riverbed dam foundation gallery 15, a bank slope gallery 16 is arranged in the bank slope bedrock 13, and an annular structural seam 3 is arranged between concrete of the riverbed dam foundation gallery 15 and lining concrete of the bank slope gallery 16. The riverbed dam foundation gallery 15 is of a concrete structure, the strength grade is not lower than C25, the thickness of the gallery concrete is not less than 1.5m generally, and the section size is 3m in width and 3.5m in height generally; the basement rock 13 bank slope gallery 16 is lined by concrete, the strength grade is not lower than C25, the thickness of the concrete lining of the gallery is generally not less than 1.5m, and the section size is generally 3m in width and 3.5m in height.
As shown in fig. 1 to 3, for the utility model, the annular structure seam structure between the concrete of the riverbed dam foundation gallery and the bank slope gallery comprises a first stage concrete gallery 1 of the riverbed dam foundation gallery 15 and a first stage concrete gallery 1 of the bank slope gallery 16, wherein the first stage concrete gallery 1 of the riverbed dam foundation gallery 15 is butted with the first stage concrete gallery 1 of the bank slope gallery 16; the first-stage concrete gallery 1 of the riverbed dam foundation gallery 15 and the first-stage concrete gallery 1 of the bank slope gallery 16 are provided with adjacent annular preformed grooves 4 on the inner sides of butt ends, the annular preformed grooves 4 are filled with second-stage concrete 2 respectively, the annular structural joints 3 comprise annular structural joints 3 between the first-stage concrete 1 of the riverbed dam foundation gallery 15 and the bank slope gallery 16 and annular structural joints 3 between the second-stage concrete 2, and water stopping structures are arranged in the two annular structural joints 3 respectively. Through the setting of annular preformed groove, the construction of second phase concrete 2 of being convenient for improves the connection effect between first phase concrete corridor 1 and the second phase concrete 2, makes things convenient for the setting of stagnant water structure simultaneously, guarantees the stagnant water effect of annular structure seam.
The first-stage concrete gallery 1 is an annular closed structure with the cross section contour consistent with that of the riverbed dam foundation gallery 15 and the bank slope gallery 16, and a cavity serving as a gallery passing part is arranged in the first-stage concrete gallery.
The water stopping structure comprises an SR water stopping strip 5 and a smearing epoxy water stopping strip 6, the SR water stopping strip 5 is arranged on the first-stage concrete gallery 1 and separates the annular structural joint 3, and the smearing epoxy water stopping strip 6 is arranged between the first-stage concrete gallery 1 and the second-stage concrete 2 and separates the annular structural joint 3. By arranging the SR waterstop 5 and the smearing epoxy waterstop 6, the requirement of seepage-proofing and sealing of the connection structure can be met, and the adaptability requirement of the gallery concrete structure in the construction period and the water storage period under the action of dam body load and reservoir water on complex three-dimensional deformation can be met.
The first-stage concrete gallery 1 is provided with a rubber water stop strip 7, and the rubber water stop strip 7 is arranged on the circumferential structural seam 3. The rubber water stop strip 7 is arranged in the first-stage concrete gallery 1, so that the water-stopping and seepage-proofing effects of the concrete can be further improved.
The second-stage concrete 2 is provided with a water-stopping copper sheet 8, and the water-stopping copper sheet 8 is arranged on the circumferential structural seam 3. Through the setting of stagnant water copper sheet 8, can improve the stagnant water prevention of seepage effect of second stage concrete 2.
The water stop copper sheet 8 comprises a bending part 9 and a connecting part 10, the connecting part 10 is arranged on two sides of the bending part 9, and the bending part 9 protrudes out of the connecting part 10. The connecting part 10 is designed to be straight, so that the contact area with the second-stage concrete 2 can be increased, and the connecting effect of the water stop copper sheet 8 and the second-stage concrete 2 is improved. Filling that 9 protruding designs of kink can be better can provide certain support when hoop structure seam 3 is flexible to be out of shape in hoop structure seam 3 to do not influence the stagnant water effect.
And (3) roughening the contact surface of the first-stage concrete gallery 1 and the second-stage concrete gallery 2. Through the chisel hair processing at the contact surface, can improve and paint the adhesion effect of epoxy waterstop 6 on the concrete and improve the connection effect of paining epoxy waterstop 6.
The top surface of the SR waterstop 5 is arc-shaped. SR sealing rod 5 with arcwall face can play the guide effect, and the dispersion rivers are avoided the infiltration to get into among the hoop structure seam 3, improve the stagnant water effect.
The utility model discloses can ensure that concrete structure safe and reliable is connected between deep overburden riverbed basis gallery of earth and rock dam and the bank slope bedrock gallery, can satisfy connection structure prevention of seepage confined requirement, also can adapt to simultaneously between riverbed soft foundation and the bank slope bedrock under dam body load and reservoir action adaptability requirement that corridor concrete structure warp to complicated three-dimensional with the retaining period to the construction period, solve the key technical problem in the concrete structure design between deep overburden riverbed basis gallery and the bank slope bedrock gallery among the earth and rock dam engineering.
The above is only a specific embodiment of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent substitutions or modifications made based on the present invention to solve the same technical problems and achieve the same technical effects are all covered by the scope of the present invention.
Claims (8)
1. The utility model provides a structure of circumferential structure seam between riverbed dam foundation corridor and bank slope corridor concrete which characterized in that: the device comprises a first-stage concrete gallery of a riverbed dam foundation gallery and a first-stage concrete gallery of a bank slope gallery, wherein the first-stage concrete gallery of the riverbed dam foundation gallery is butted with the first-stage concrete gallery of the bank slope gallery; the first phase concrete corridor of riverbed dam foundation corridor with the first phase concrete corridor of bank slope corridor sets up adjacent annular preformed groove in the inboard of butt joint end, it has second phase concrete to fill respectively in the annular preformed groove, and the hoop structure seam includes annular structure seam between riverbed dam foundation corridor and the first phase concrete corridor of bank slope corridor with hoop structure seam between the second phase concrete, and two set up the stagnant water structure in the hoop structure seam respectively.
2. The circumferential structural seam structure between the concrete of the riverbed dam foundation gallery and the bank slope gallery according to claim 1, wherein: the first-stage concrete gallery is an annular closed structure with the cross section contour consistent with that of the riverbed dam foundation gallery and the bank slope gallery, and a cavity serving as a passage part of the gallery is arranged in the first-stage concrete gallery.
3. The circumferential structural seam structure between the concrete of the riverbed dam foundation gallery and the bank slope gallery according to claim 1, wherein: the stagnant water structure includes the SR waterstop and paints the epoxy waterstop, the SR waterstop is located first stage concrete corridor separates the hoop structure seam, paint the epoxy waterstop and locate first stage concrete corridor with between the second stage concrete and separate the hoop structure seam.
4. The structure of claim 1 in which the structural joint between the concrete of the riverbed dam foundation gallery and the concrete of the bank slope gallery is a circumferential structural joint, characterized in that: the first stage concrete gallery is provided with a rubber sealing rod, and the rubber sealing rod is arranged on the circumferential structural joint.
5. The structure of claim 1 in which the structural joint between the concrete of the riverbed dam foundation gallery and the concrete of the bank slope gallery is a circumferential structural joint, characterized in that: the second-stage concrete is provided with a water-stopping copper sheet, and the water-stopping copper sheet is arranged on the circumferential structural seam.
6. The circumferential structural seam structure between the concrete of the riverbed dam foundation gallery and the bank slope gallery of claim 5, wherein: the water stopping copper sheet comprises a bending part and a connecting part, the connecting part is arranged on two sides of the bending part, and the bending part protrudes out of the connecting part.
7. The circumferential structural seam structure between the concrete of the riverbed dam foundation gallery and the bank slope gallery according to claim 1, wherein: and roughening the contact surface of the first-stage concrete gallery and the second-stage concrete.
8. The circumferential structural seam structure between the concrete of the riverbed dam foundation gallery and the bank slope gallery according to claim 3, wherein: the top surface of the SR waterstop is arc-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222025843.XU CN218757308U (en) | 2022-07-29 | 2022-07-29 | Annular structure seam structure between riverbed dam foundation gallery and bank slope gallery concrete |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202222025843.XU CN218757308U (en) | 2022-07-29 | 2022-07-29 | Annular structure seam structure between riverbed dam foundation gallery and bank slope gallery concrete |
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| CN218757308U true CN218757308U (en) | 2023-03-28 |
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| CN202222025843.XU Active CN218757308U (en) | 2022-07-29 | 2022-07-29 | Annular structure seam structure between riverbed dam foundation gallery and bank slope gallery concrete |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115247408A (en) * | 2022-07-29 | 2022-10-28 | 中国电建集团华东勘测设计研究院有限公司 | Annular structural seam structure between concrete of riverbed dam foundation gallery and bank slope gallery |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115247408A (en) * | 2022-07-29 | 2022-10-28 | 中国电建集团华东勘测设计研究院有限公司 | Annular structural seam structure between concrete of riverbed dam foundation gallery and bank slope gallery |
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