CN217758596U - Water stop structure suitable for roller compacted concrete gravity dam - Google Patents
Water stop structure suitable for roller compacted concrete gravity dam Download PDFInfo
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- CN217758596U CN217758596U CN202221268692.4U CN202221268692U CN217758596U CN 217758596 U CN217758596 U CN 217758596U CN 202221268692 U CN202221268692 U CN 202221268692U CN 217758596 U CN217758596 U CN 217758596U
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Abstract
The utility model discloses a be suitable for stagnant water structure of roller compacted concrete gravity dam, include: the water stopping tank is positioned in the dam foundation below the dam parting and comprises a first water stopping tank, a second water stopping tank and a third water stopping tank; the first water stop belt is arranged at the edge of the upstream side of the seam of the dam body, and the bottom of the first water stop belt extends into the first water stop groove; a first branch waterstop having a first horizontal section; a second water stop arranged in parallel with the first water stop and located at a downstream side thereof; a second branch waterstop having a second horizontal section; the third water stop belt is arranged at the edge of the downstream side of the dam body parting, and the bottom of the third water stop belt extends into the third water stop groove; the fourth water stop is arranged on the foundation surface on the upstream side of the dam body along the axial direction of the dam, and the end part of the fourth water stop is connected with the first water stop; wherein, first horizontal segment links to each other with the second waterstop, and the second water section is located first horizontal segment top. The utility model discloses effectively prevent rivers and get into the dam body through parting/build the base face gap, realize the all-round prevention of seepage protection to the dam body.
Description
Technical Field
The utility model belongs to the technical field of gravity dam stagnant water technique and specifically relates to a be suitable for stagnant water structure of roller compacted concrete gravity dam is related to.
Background
In order to reduce the stresses caused by temperature contraction, expansion, differential deformation, etc., the roller compacted concrete gravity dam body is often provided in sections, each typically 12-22m in length. In order to prevent water seepage, water stopping structures are required to be arranged at the joints of different dam sections. If the water stop fails, the dam body can be leaked, and the safety of the building is damaged, so that a reliable water stop structure is very important for the roller compacted concrete gravity dam.
Disclosure of Invention
In order to solve the problem, the utility model provides a with low costs, effectual stagnant water structure that is suitable for roller compacted concrete gravity dam specifically can take following technical scheme:
be suitable for stagnant water structure of roller compacted concrete gravity dam, include
The water stopping groove is positioned in the dam foundation below the dam body parting and comprises a first water stopping groove, a second water stopping groove and a third water stopping groove which are sequentially arranged along the water flow direction;
the first water stop belt is arranged at the edge of the upstream side of the seam of the dam body, and the bottom of the first water stop belt extends into the first water stop groove;
one end of the first branch water stop is connected with the first water stop, the other end of the first branch water stop is arranged in the second water stop groove, and the middle part of the first branch water stop is a first horizontal section;
the second water stop is arranged in parallel with the first water stop and positioned on the downstream side of the first water stop, and the bottom of the second water stop extends into the first water stop groove;
one end of the second branch water stop is connected with the second water stop, the other end of the second branch water stop is arranged in the second water stop groove, and the middle part of the second branch water stop is a second horizontal section;
the third water stop belt is arranged at the edge of the downstream side of the dam body parting, and the bottom of the third water stop belt extends into the third water stop groove;
the fourth water stop is arranged on the foundation surface on the upstream side of the dam body along the axial direction of the dam, and the end part of the fourth water stop is connected with the first water stop;
the first horizontal section is connected with the second water stop, and the second water section is located above the first horizontal section.
The first water stop and the third water stop are both made of red copper water stop sheets, and when the third water stop is positioned at the overflow dam section, the third water stop extends to the top of the dam body and is connected with the first water stop; when located in a non-overflow dam section, the first water stop extends up to the top of the dam body, and the top of the third water stop is located 1 meter above the highest downstream water level. And on the premise of meeting the waterproof requirement, the material cost is reduced.
The second water stop comprises a rubber water stop and a red copper water stop sheet connected to the lower end of the rubber water stop and extending into the first water stop groove, and material cost is further reduced.
The first branch water stop adopts a red copper water stop, one end of the first branch water stop is connected with the first water stop in a welding mode, the first horizontal section in the middle is located 0.4 m above the foundation surface on the upstream side of the dam body, and the first horizontal section is connected with the rubber water stop of the second water stop.
Specifically, the first horizontal section is connected with a rubber waterstop of the second waterstop through a bonding agent, a copper sheet pressing plate is arranged on the other side of the rubber waterstop of the second waterstop, and the copper sheet pressing plate, the rubber waterstop of the second waterstop and the first horizontal section are fixedly connected through bolts.
And the second horizontal section of the second branch water stop is positioned 0.4 meter above the first horizontal section, and the second branch water stop adopts a rubber water stop which is bonded with the rubber water stop of the second water stop.
The end of the first branch water stop and the end of the second branch water stop stretch into the second water stop in a vertical state, the first branch water stop and the second branch water stop are separated by 0.4 meter, and the second branch water stop is positioned on the downstream side of the first branch water stop.
The fourth water stop adopts a red copper water stop sheet, and the end part of the fourth water stop is connected with the first water stop in a welding way.
The red copper water stop sheet is 1.2mm in thickness, and the rubber water stop belt is 10mm in thickness.
The first water stopping groove, the second water stopping groove and the third water stopping groove are all of inverted frustum structures, the slope ratio of the side slopes is 1.
The utility model provides a be suitable for stagnant water structure of roller compacted concrete gravity dam through set up the waterstop of multiple form at the edge of dam body piecemeal to and set up the stagnant water groove at the dam bottom, effectively prevent rivers through parting/build the base face gap and get into the dam body, realize the all-round prevention of seepage protection to the dam body; and secondly, the water stops at multiple positions adopt a mode of parallel arrangement of red copper water stops and rubber water stops, so that the anti-seepage effect is enhanced, and the construction cost is reduced.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic view of the third waterstop of fig. 1 at an overflow dam segment.
Fig. 3 is a schematic view of the third waterstop of fig. 1 in a non-overflow dam segment.
Fig. 4 is a view from direction K-K in fig. 2.
Fig. 5 is an enlarged view of a portion a in fig. 2.
Fig. 6 is an enlarged view of a portion B in fig. 2.
Fig. 7 is an enlarged view of a portion C in fig. 2.
Fig. 8 is a schematic view of the connection structure of the red copper water stop and the rubber water stop of the present invention.
Fig. 9 is a left side view of fig. 8.
Fig. 10 is a schematic view of the welding structure of the red copper water stop of the present invention.
Detailed Description
The embodiments of the present invention will be described in detail with reference to the accompanying drawings, and the embodiments are implemented on the premise of the technical solution of the present invention, and detailed embodiments and specific construction processes are given, but the scope of the present invention is not limited to the following embodiments.
As shown in figures 1-10, be suitable for stagnant water structure of roller compacted concrete gravity dam, include a plurality of stagnant water grooves of excavation in the dam body basis, above-mentioned stagnant water groove all is located dam body parting below, and the stagnant water groove of every parting is first stagnant water groove 11, second stagnant water groove 12 and third stagnant water groove 13 along the rivers direction in proper order. The first water stop tank 11, the second water stop tank 12, and the third water stop tank 13 are all of inverted-prismatic structures, and the side slope ratio is 1. After the installation is finished, C20 micro-expansion concrete is backfilled in the groove to form a backfill layer.
And the dam body is also provided with water stops, and the water stops comprise a first water stop 2 positioned at the edge of the upstream side of the slit of the dam body, a second water stop 3 arranged in parallel with the first water stop 2 and positioned at the downstream side of the slit of the dam body, a third water stop 4 positioned at the edge of the downstream side of the slit of the dam body, a fourth water stop 5 arranged on the foundation surface of the upstream side of the dam body along the axial direction of the dam, and the like.
Specifically, the first water stop 2 and the third water stop 4 are waterproof bodies to prevent water from entering the dam through parting in the upstream and downstream. Both adopt red copper sealing-up piece, and its bottom is deepened respectively in first sealing-up groove 11 and the third sealing-up groove 13 to strengthen the stagnant water effect of basic bottom. On the premise of meeting the waterproof requirement, in order to reduce the material cost, when the third water stop 4 is positioned at the overflow dam section, the top of the third water stop extends to the top of the dam body and is connected with the first water stop 2; when the third water stop 4 is located at a non-overflow dam section, the first water stop 2 extends upwards to the top of the dam body, and the top of the third water stop 4 reaches a position 1 meter above the highest downstream water level, namely the third water stop 4 and the downstream water stop are not required to be connected into a ring shape. The distance between the first water stop 2 and the third water stop 4 and the surface of the dam body is 0.8m. Further, a second water stop 3 is arranged in parallel at 1.5m on the downstream side of the first water stop 2 for enhancing water resistance, i.e., for blocking water when the first water stop 2 fails. In order to save cost, the second water stop 3 is a rubber water stop, and only one section of red copper water stop extending into the bottom of the first water stop tank 11 is connected to the tail end of the rubber water stop.
The first water stop 2 is connected with a first branch water stop 6, and the second water stop 3 is connected with a second branch water stop 7. The first branch water stop 6 is made of red copper water stop sheets, one end of each red copper water stop sheet is connected with the first water stop 2 in a welding mode, the other end of each red copper water stop sheet vertically extends into the second water stop groove 12, and the first horizontal section of the middle portion is located at a position 0.4 m above the upper building base face of the dam body and is connected with the rubber water stop of the second water stop 3. When connecting the red copper water stop and the rubber water stop, the following method is generally adopted: firstly, a red copper water stop sheet and a rubber water stop are jointed through a bonding agent, then a copper sheet pressing plate 8 is placed on the other side of the rubber water stop, and finally the copper sheet pressing plate 8, the rubber water stop and the red copper water stop sheet are fixed through bolts 9. The second branch water stop 7 is made of a rubber water stop, one end of the second branch water stop is connected with the second water stop 3 through bonding of a bonding agent, the other end of the second branch water stop is vertically arranged and extends into the second water stop groove 12, and the second horizontal section of the middle portion is located 0.4 meter above the first horizontal section of the first water stop 2. Thus, the ends of the first branch water stop 6 and the second branch water stop 7 extending into the second water stop tank 12 are arranged in parallel at a distance of 0.4 m, and the end of the second branch water stop 7 is located on the downstream side of the end of the first branch water stop 6. The first branch water stop 6 is used for preventing seepage water flow caused by bottom uplift pressure from entering the dam body from the parting joint, and the second branch water stop 7 is used for stopping water when the first branch water stop 6 fails.
The fourth water stop strip 5 is made of red copper water stop sheets, is arranged on the foundation surface on the upstream side of the dam body along the axial direction of the dam, and is connected with the first water stop strip 2 in a welding mode at the end part so as to prevent water from entering the dam body from a gap between the dam body foundation and the foundation surface.
In general, the thickness of the red copper water stop sheet is preferably 1.2mm, and the thickness of the rubber water stop strip is preferably 10mm.
It should be noted that in the description of the present invention, terms such as "front", "rear", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating orientations or positional relationships are based on the orientations or positional relationships shown in the drawings only for the convenience of description of the present invention and for simplification of description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
Claims (10)
1. The utility model provides a be suitable for roller compacted concrete gravity dam's stagnant water structure which characterized in that: comprises that
The water stopping groove is positioned in the dam foundation below the dam body parting and comprises a first water stopping groove, a second water stopping groove and a third water stopping groove which are sequentially arranged along the water flow direction;
the first water stop belt is arranged at the edge of the upstream side of the seam of the dam body, and the bottom of the first water stop belt extends into the first water stop groove;
one end of the first branch water stop is connected with the first water stop, the other end of the first branch water stop is arranged in the second water stop groove, and the middle part of the first branch water stop is a first horizontal section;
the second water stop belt is arranged in parallel with the first water stop belt and is positioned at the downstream side of the first water stop belt, and the bottom of the second water stop belt extends into the first water stop groove;
one end of the second branch water stop is connected with the second water stop, the other end of the second branch water stop is arranged in the second water stop groove, and the middle part of the second branch water stop is a second horizontal section;
the third water stop belt is arranged at the edge of the downstream side of the dam body parting, and the bottom of the third water stop belt extends into the third water stop groove;
the fourth water stop is arranged on the foundation surface on the upstream side of the dam body along the axial direction of the dam, and the end part of the fourth water stop is connected with the first water stop;
the first horizontal section is connected with the second water stop, and the second water section is located above the first horizontal section.
2. A waterstop structure suitable for a roller compacted concrete gravity dam according to claim 1, wherein: the first water stop and the third water stop are both red copper water stop sheets, and when the third water stop is positioned at the overflow dam section, the third water stop extends to the top of the dam body and is connected with the first water stop; when located in a non-overflow dam section, the first water stop extends up to the top of the dam body, and the top of the third water stop is located 1 meter above the highest downstream water level.
3. A waterstop structure suitable for a roller compacted concrete gravity dam according to claim 2, wherein: the second water stop comprises a rubber water stop and a red copper water stop sheet connected to the lower end of the rubber water stop and extending into the first water stop groove.
4. A waterstop structure suitable for a roller compacted concrete gravity dam as claimed in claim 3, wherein: the first branch water stop adopts a red copper water stop, one end of the first branch water stop is connected with the first water stop in a welding mode, the first horizontal section in the middle is located 0.4 m above the foundation surface on the upstream side of the dam body, and the first horizontal section is connected with the rubber water stop of the second water stop.
5. A waterstop structure suitable for a roller compacted concrete gravity dam as claimed in claim 4, wherein: the first horizontal section is connected with a rubber waterstop of the second waterstop through a bonding agent, a copper sheet pressing plate is arranged on the other side of the rubber waterstop of the second waterstop, and the copper sheet pressing plate, the rubber waterstop of the second waterstop and the first horizontal section are fixedly connected through bolts.
6. A waterstop structure suitable for a roller compacted concrete gravity dam as claimed in claim 5, wherein: and the second horizontal section of the second branch water stop is positioned 0.4 meter above the first horizontal section, and the second branch water stop adopts a rubber water stop which is bonded with the rubber water stop of the second water stop.
7. A waterstop structure suitable for a roller compacted concrete gravity dam according to claim 6, wherein: the end of the first branch water stop and the end of the second branch water stop stretch into the second water stop in a vertical state, the first branch water stop and the second branch water stop are separated by 0.4 meter, and the second branch water stop is positioned on the downstream side of the first branch water stop.
8. A waterstop structure suitable for a roller compacted concrete gravity dam according to claim 7, wherein: the fourth water stop adopts a red copper water stop sheet, and the end part of the fourth water stop is connected with the first water stop in a welding way.
9. A waterstop structure suitable for a roller compacted concrete gravity dam as claimed in claim 8, wherein: the thickness of the red copper water stop sheet is 1.2mm, and the thickness of the rubber water stop belt is 10mm.
10. A waterstop structure suitable for a roller compacted concrete gravity dam according to any one of claims 1 to 9, wherein: the first water stopping groove, the second water stopping groove and the third water stopping groove are all of inverted-edge platform structures, the slope ratio of the side slopes is 1.5, and a C20 micro-expansion concrete backfill layer is arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221268692.4U CN217758596U (en) | 2022-05-25 | 2022-05-25 | Water stop structure suitable for roller compacted concrete gravity dam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221268692.4U CN217758596U (en) | 2022-05-25 | 2022-05-25 | Water stop structure suitable for roller compacted concrete gravity dam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217758596U true CN217758596U (en) | 2022-11-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221268692.4U Active CN217758596U (en) | 2022-05-25 | 2022-05-25 | Water stop structure suitable for roller compacted concrete gravity dam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217758596U (en) |
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2022
- 2022-05-25 CN CN202221268692.4U patent/CN217758596U/en active Active
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