CN212896179U - Drainage stopping structure for transverse joint between adjacent seepage-proof panels on near-water surface of concrete gravity dam - Google Patents
Drainage stopping structure for transverse joint between adjacent seepage-proof panels on near-water surface of concrete gravity dam Download PDFInfo
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- CN212896179U CN212896179U CN202021735752.XU CN202021735752U CN212896179U CN 212896179 U CN212896179 U CN 212896179U CN 202021735752 U CN202021735752 U CN 202021735752U CN 212896179 U CN212896179 U CN 212896179U
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Abstract
The utility model discloses a drainage stopping structure for a transverse joint between adjacent seepage-proofing panels on the near-water surface of a concrete gravity dam, which comprises an upper plate, a lower plate and a lower plate, wherein the upper plate is pre-embedded on the lower surface of a first pouring block of the seepage-proofing panels, and the middle part of the upper plate is provided with a lower open slot; the lower plate is pre-embedded on the upper surface of the rear pouring block of the anti-seepage panel, the middle part of the lower plate is provided with an upper open slot, and the upper open slot and the lower open slot are matched and buckled to form a drainage channel; the drainage pipe is embedded in the seepage-proofing panel post-pouring block in an inclined manner, the inclined upper end of the drainage pipe is communicated with the drainage groove, and the inclined lower end of the drainage pipe penetrates through the seepage-proofing panel post-pouring block and is communicated with a drainage gallery at a corresponding elevation in the dam body; the upper plate and the lower plate are fixedly connected through a connecting piece, and a sealing piece for sealing the drainage channel is filled in a transverse seam between the seepage-proofing panel early-casting block and the seepage-proofing panel later-casting block. The utility model has the advantages of simple structure, the processing cost is low, and the installation is laid portably, effectively solves the defect that the transversal joint department leaked, does not destroy the wholeness of prevention of seepage panel.
Description
Technical Field
The utility model belongs to the technical field of the concrete gravity dam face of water transverse joint stagnant water technique and specifically relates to a concrete gravity dam face of water adjacent prevention of seepage panel transverse joint's only drainage structures.
Background
Concrete seepage-proofing panels are usually required to be laid on the water-facing surface of the concrete gravity dam, the concrete seepage-proofing panels are poured and laid layer by layer according to the height of the dam body, and a transverse seam is formed between pouring blocks of two adjacent concrete seepage-proofing panels; in the long-term use process, the water leakage at the transverse seam is a common defect of hydraulic buildings, once the phenomenon of water leakage at the transverse seam occurs, a water cavity is formed in the transverse seam in a stacking manner, and the concrete impermeable panel can bulge or even break in the long term.
In the prior art, the treatment method commonly adopted for solving the problem of water leakage at the transverse seam comprises the following steps: drilling and grouting on an inclined joint penetrating surface, drilling and grouting on a joint, grouting on an upstream transverse joint underwater, and the like, wherein the treatment method comprises the steps of drilling holes on the anti-seepage panel, then discharging water in the drainage groove, and grouting and plugging the drainage groove after the water in the drainage groove is discharged; the whole operation process is relatively complicated, the operation difficulty is high, the specialization is strong, large-scale drilling can be carried out on the dam, the integrity of the anti-seepage panel is damaged, and the service life of the anti-seepage panel is greatly influenced.
Disclosure of Invention
An object of the utility model is to provide a concrete gravity dam is adjacent strides only drainage structures between seam.
In order to achieve the above purpose, the utility model can adopt the following technical proposal:
horizontal seam only drainage structure between adjacent prevention of seepage panel of concrete gravity dam face of water, include:
the upper plate is embedded on the lower surface of the anti-seepage panel casting block, and the middle part of the upper plate is provided with a lower open slot;
the lower plate is pre-embedded on the upper surface of the rear pouring block of the anti-seepage panel, the middle part of the lower plate is provided with an upper open slot, and the upper open slot and the lower open slot are matched and buckled to form a drainage channel; and
the drainage pipe is obliquely embedded in the seepage-proofing panel post-pouring block, the inclined upper end of the drainage pipe is communicated with the drainage groove, and the inclined lower end of the drainage pipe penetrates through the seepage-proofing panel post-pouring block and is communicated with a drainage gallery at a corresponding elevation in the dam body;
the upper plate and the lower plate are fixedly connected through a connecting piece, and a sealing piece for sealing the drainage groove is filled in a transverse seam between the seepage-proofing panel first-pouring block and the seepage-proofing panel later-pouring block.
Further, the sealing element is an asphalt plugging element poured into the transverse seam.
Furthermore, red copper water stop sheets for blocking the transverse seams are longitudinally arranged on the front sides of the upper plate and the lower plate, and are pre-buried in the seepage-proofing panel first-pouring block and the seepage-proofing panel later-pouring block; the rear sides of the upper plate and the lower plate are longitudinally provided with rubber water stops for blocking the transverse seams, the rubber water stops are pre-embedded in the seepage-proofing panel post-pouring block and the seepage-proofing panel post-pouring block, and the rear side face of the rubber water stops is attached to the front side face of the dam body.
Furthermore, the front port of the transverse seam is filled with a sealing glue.
Furthermore, the upper plate comprises an inverted V-shaped plate which encloses the lower opening groove, the lower edges of the two side walls of the inverted V-shaped plate are horizontally turned outwards to form a pair of upper connecting plates which are attached to the lower surface of the anti-seepage panel first pouring block, and the outer edges of the two upper connecting plates are bent upwards to form reinforcing plates which extend into the anti-seepage panel first pouring block; the included angle alpha between the reinforcing plate and the upper connecting plate is 135 degrees.
Furthermore, the lower plate element comprises a positive V-shaped plate which encloses the upper open slot, the positive V-shaped plate and the inverted V-shaped plate are matched and buckled to form the drainage slot with a diamond structure, the upper edges of the two side walls of the positive V-shaped plate are horizontally turned outwards to form a pair of lower connecting plates which are attached to the upper surface of the post-cast block of the anti-seepage panel, and the lower connecting plates are matched and corresponding to the upper connecting plates; the connecting piece is a threaded round nail which is fixedly penetrated between the upper connecting plate and the lower connecting plate.
Furthermore, the upper plate and the lower plate are formed by bending waterproof steel plates.
The utility model has the advantages of simple structure, the processing cost is low, and the installation is laid portably. The upper plate pre-embedded on the anti-seepage panel pre-casting block and the lower plate pre-embedded on the anti-seepage panel post-casting block are buckled in a matched manner, so that a drainage groove in the transverse seam is formed, the defect of water leakage at the transverse seam is effectively overcome, water can be accumulated in the drainage groove and then flows out of a drainage pipe communicated with the drainage groove; in addition, the asphalt plugging piece filled in the transverse joint is matched with red copper water stop sheets arranged on the front sides of the upper and lower plates and rubber water stop belts arranged on the rear sides of the upper and lower plates, so that further sealing and water stopping can be formed, tight connection between the first pouring block of the anti-seepage panel and the second pouring block of the anti-seepage panel can be ensured, the stability of the anti-seepage panel is enhanced, the integral pouring construction of the anti-seepage panel is not influenced, the integrity of the anti-seepage panel is not damaged, and the anti-seepage panel has higher practicability and popularization value.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is an enlarged view of the upper plate member of fig. 1.
Fig. 3 is an enlarged view of the lower plate member of fig. 1.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.
As shown in fig. 1, the transverse joint water stop and drainage structure between adjacent impermeable panels on the water-facing surface of the concrete gravity dam of the present invention comprises an upper panel 1, a lower panel 2 and a drainage pipe 3; wherein, the upper plate 1 is pre-embedded on the lower surface of the seepage-proofing panel first casting block 4, and the middle part of the upper plate is provided with a lower open slot; the lower plate 2 is pre-embedded on the upper surface of the anti-seepage panel post-pouring block 5, the middle part of the lower plate is provided with an upper open slot, and the upper open slot and the lower open slot are matched and buckled to form a drainage channel 6; the drain pipe 3 is embedded in the seepage-proofing panel post-pouring block 5 in an inclined manner, the inclined upper end of the drain pipe is communicated with the drain groove 6, and the inclined lower end of the drain pipe penetrates through the seepage-proofing panel post-pouring block 5 and is communicated with a drain gallery at a corresponding elevation in the dam body 7; in addition, the upper plate 1 and the lower plate 2 are fixedly connected through a connecting piece, a sealing piece for sealing a drainage groove is filled in a transverse seam between the seepage-proofing panel first casting block 4 and the seepage-proofing panel later casting block 5, the sealing piece can be specifically an asphalt blocking piece 8 filled in the transverse seam, the asphalt blocking piece 8 only needs to be filled around the drainage groove 6, and the transverse seams of the rest parts are filled with asphalt wood boards 9.
Specifically, as shown in fig. 2, the upper plate 1 includes an inverted V-shaped plate 101 enclosing a lower open groove, the lower edges of the two side walls of the inverted V-shaped plate 101 are horizontally turned outwards to form a pair of upper connecting plates 102 attached to the lower surface of the impermeable panel pre-pouring block 4, the outer edges of the two upper connecting plates 102 are bent upwards to form a reinforcing plate 103 extending into the impermeable panel pre-pouring block 4, and the included angle α between the reinforcing plate 103 and the upper connecting plates 102 is 135 °. As shown in fig. 3, the lower plate 2 includes a positive V-shaped plate 201 enclosing an upper opening groove, the positive V-shaped plate 201 is adapted to the inverted V-shaped plate 101 to lock the drainage groove 6 in a diamond structure, the upper edges of the two side walls of the positive V-shaped plate 201 are horizontally turned outwards to form a pair of lower connection plates 202 attached to the upper surface of the anti-seepage panel post-cast block 5, and the lower connection plates 202 are adapted to the upper connection plates 102 so as to connect the upper plate 1 and the lower plate 2 through a connection member. Further, the upper plate 1 and the lower plate 2 may be formed by bending waterproof steel plates, and the connecting member may be a threaded round nail 10 fixedly inserted between the upper connecting plate 102 and the lower connecting plate 202.
In order to further enhance the sealing water-stopping performance, red copper water-stopping sheets 11 for separating transverse seams are longitudinally arranged on the front sides of the upper plate 1 and the lower plate 2, and the red copper water-stopping sheets 11 are pre-embedded in the seepage-proofing panel first-pouring block 4 and the seepage-proofing panel later-pouring block 5; and the rear sides of the upper plate 1 and the lower plate 2 are longitudinally provided with rubber water stops 12 for blocking transverse seams, the rubber water stops 12 are pre-embedded in the seepage-proofing panel pre-pouring block 4 and the seepage-proofing panel post-pouring block 5, and the rear side surface of the rubber water stop 12 is attached to the front side surface of the dam body 7. In addition, the front port of the transverse seam can be filled with the sealant 13, namely the water-approaching end of the transverse seam is filled with the sealant 13.
Concrete gravity dam face surface of water adjacent horizontal seam stagnant water drainage structures's concrete construction method between adjacent prevention of seepage panel as follows:
the first step, the material (such as steel plate) with certain rigidity, strength and durability is selected according to the requirement to be bent to process the upper plate 1 and the lower plate 2, the production can be carried out on the construction site, the batch prefabrication can also be carried out in a factory, the processing is very simple and convenient, the processing cost is very low, and only the need of timely maintenance in the prefabrication production of the factory is needed.
Secondly, laying concrete impermeable panels in a layered manner from the lower edge of the dam body, and paying attention to the fact that each layer of concrete impermeable panel is a first casting block 4 for casting the upper impermeable panel first and then a second casting block 5 for casting the lower impermeable panel later; horizontally fixing an upper plate 1 at the bottom of a template for casting an anti-seepage panel early-casting block 4, meanwhile, placing a red copper water stop sheet 11 in advance on the front side of the upper plate 1, placing a rubber water stop belt 12 in advance on the rear side of the upper plate 1, and then casting, so that the upper plate 1 can be horizontally embedded in the bottom surface of the anti-seepage panel early-casting block 4, and the upper parts of the red copper water stop sheet 11 and the rubber water stop belt 12 are respectively embedded in the anti-seepage panel early-casting blocks 4 on the front side and the rear side of the upper plate 1, so as to increase the connection tightness between the upper plate 1 and the anti-seepage panel early-casting block 4, and the integral stability and the smoothness of the upper plate 1; in addition, in the pouring process, in order to prevent the upper plate 1 from shifting, the concrete on two sides of the upper plate 1 needs to be uniformly lifted when being poured, manual leveling and vibrating are continuously carried out, and once the shifting is found, the deviation needs to be immediately corrected.
And thirdly, the lower plate 2 is attached to the bottom surface of the upper plate 1 in parallel, an upper opening groove on the lower plate 2 is aligned with a lower opening groove on the upper plate 1, and then the lower plate 2 and the upper plate 102 are fixedly connected to each other through threaded round nails 10 from bottom to top, so that the upper plate 1 and the lower plate 2 are fixedly connected together, and a water drainage groove 6 with a rhombic structure is further formed by the lower plate and the upper plate.
And fourthly, arranging a drain pipe 3 communicated with the drainage groove 6 on the lower plate 2, wherein the upper end of the drain pipe 3 obliquely and hermetically penetrates through one side wall of the positive V-shaped plate 201 of the lower plate 2, and the lower end of the drain pipe 3 extends into a drainage gallery with a corresponding elevation in the dam body 7, so that the drain pipe 3 not only can be used for draining the seepage water in the drainage groove 6, but also can be used as a grouting pipe in the later period for carrying out post-treatment on the water stop.
And fifthly, pouring a post-pouring block 5 of the impermeable panel.
And sixthly, filling asphalt plugging pieces 8 in transverse seams between the first pouring blocks 4 and the second pouring blocks 5 of the seepage-proofing panel, paying attention to the fact that the asphalt plugging pieces 8 are only filled around the outer sides of the drainage grooves 6, filling asphalt boards 9 in the transverse seams of the rest parts, and finally filling sealant 13 at the front end openings of the transverse seams to finish the laying of the concrete seepage-proofing panel.
After the concrete impermeable panel layer is laid, the drainage groove 6 needs to be protected to prevent sundries from falling in the process of clearing the warehouse.
In the using process, the seepage water in the concrete seepage-proofing panel can be accumulated in the drainage groove 6 and then flows out of the drainage pipe 3 communicated with the drainage groove 6, and the water leakage defect of the transverse seam of the concrete seepage-proofing panel on the near-water surface of the concrete gravity dam is effectively overcome.
Claims (10)
1. The utility model provides a concrete gravity dam faces adjacent prevention of seepage panel between horizontal seam's drainage structures that ends of surface, its characterized in that: comprises that
The upper plate is embedded on the lower surface of the anti-seepage panel casting block, and the middle part of the upper plate is provided with a lower open slot;
the lower plate is pre-embedded on the upper surface of the rear pouring block of the anti-seepage panel, the middle part of the lower plate is provided with an upper open slot, and the upper open slot and the lower open slot are matched and buckled to form a drainage channel; and
the drainage pipe is obliquely embedded in the seepage-proofing panel post-pouring block, the inclined upper end of the drainage pipe is communicated with the drainage groove, and the inclined lower end of the drainage pipe penetrates through the seepage-proofing panel post-pouring block and is communicated with a drainage gallery at a corresponding elevation in the dam body;
the upper plate and the lower plate are fixedly connected through a connecting piece, and a sealing piece for sealing the drainage groove is filled in a transverse seam between the seepage-proofing panel first-pouring block and the seepage-proofing panel later-pouring block.
2. The water stop and drainage structure for the transverse joint between adjacent impermeable panels on the water surface of the concrete gravity dam as recited in claim 1, characterized in that: the sealing element is an asphalt plugging element poured into the transverse seam.
3. The water stop and drainage structure for the transverse joint between adjacent impermeable panels on the water surface of the concrete gravity dam as recited in claim 1, characterized in that: the front sides of the upper plate and the lower plate are longitudinally provided with red copper water stop sheets for blocking the transverse seams, and the red copper water stop sheets are pre-embedded in the seepage-proofing panel pre-pouring block and the seepage-proofing panel post-pouring block.
4. The water stop and drainage structure for the transverse joint between adjacent impermeable panels on the water surface of the concrete gravity dam as recited in claim 1, characterized in that: the rear sides of the upper plate and the lower plate are longitudinally provided with rubber water stops for blocking the transverse seams, the rubber water stops are pre-embedded in the seepage-proofing panel post-pouring block and the seepage-proofing panel post-pouring block, and the rear side face of the rubber water stops is attached to the front side face of the dam body.
5. The water stop and drainage structure for the transverse joint between adjacent impermeable panels on the water surface of the concrete gravity dam as recited in claim 1, characterized in that: and sealant is filled at the front port of the transverse seam.
6. The water stop and drainage structure for the transverse joint between adjacent impermeable panels on the water surface of the concrete gravity dam as recited in claim 1, characterized in that: the upper plate comprises an inverted V-shaped plate which encloses the lower opening groove, the lower edges of the two side walls of the inverted V-shaped plate are horizontally turned outwards to form a pair of upper connecting plates which are attached to the lower surface of the anti-seepage panel early-pouring block, and the outer edges of the two upper connecting plates are bent upwards to form reinforcing plates which extend into the anti-seepage panel early-pouring block.
7. The water stop and drainage structure for the transverse joint between the adjacent impermeable panels on the water surface of the concrete gravity dam as recited in claim 6, characterized in that: the included angle alpha between the reinforcing plate and the upper connecting plate is 135 degrees.
8. The water stop and drainage structure for the transverse joint between the adjacent impermeable panels on the water surface of the concrete gravity dam as recited in claim 6, characterized in that: the lower plate part comprises a positive V-shaped plate which encloses the upper open slot, the positive V-shaped plate and the inverted V-shaped plate are matched and buckled to form the drainage groove with a diamond structure, the upper edges of the two side walls of the positive V-shaped plate are horizontally turned outwards to form a pair of lower connecting plates which are attached to the upper surface of the rear casting block of the anti-seepage panel, and the lower connecting plates correspond to the upper connecting plates in a matched mode.
9. The water stop and drainage structure for the transverse joint between adjacent impermeable panels on the water surface of the concrete gravity dam as recited in claim 8, wherein: the connecting piece is a threaded round nail which is fixedly penetrated between the upper connecting plate and the lower connecting plate.
10. The water stop and drainage structure for the transverse joint between adjacent impermeable panels on the water surface of the concrete gravity dam as recited in claim 8, wherein: the upper plate and the lower plate are formed by bending waterproof steel plates.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021735752.XU CN212896179U (en) | 2020-08-19 | 2020-08-19 | Drainage stopping structure for transverse joint between adjacent seepage-proof panels on near-water surface of concrete gravity dam |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021735752.XU CN212896179U (en) | 2020-08-19 | 2020-08-19 | Drainage stopping structure for transverse joint between adjacent seepage-proof panels on near-water surface of concrete gravity dam |
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| CN212896179U true CN212896179U (en) | 2021-04-06 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113789728A (en) * | 2021-09-30 | 2021-12-14 | 中建港航局集团有限公司 | Connecting device for underwater component mounting seam |
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2020
- 2020-08-19 CN CN202021735752.XU patent/CN212896179U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113789728A (en) * | 2021-09-30 | 2021-12-14 | 中建港航局集团有限公司 | Connecting device for underwater component mounting seam |
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