CN203890966U - Asphalt concrete core wall anti-seepage structure - Google Patents
Asphalt concrete core wall anti-seepage structure Download PDFInfo
- Publication number
- CN203890966U CN203890966U CN201420147438.8U CN201420147438U CN203890966U CN 203890966 U CN203890966 U CN 203890966U CN 201420147438 U CN201420147438 U CN 201420147438U CN 203890966 U CN203890966 U CN 203890966U
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- CN
- China
- Prior art keywords
- core wall
- concrete core
- concrete
- asphalt
- upstream
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000011384 asphalt concrete Substances 0.000 title abstract description 12
- 239000004567 concrete Substances 0.000 claims abstract description 70
- 239000010949 copper Substances 0.000 claims abstract description 24
- 229910052802 copper Inorganic materials 0.000 claims abstract description 24
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 23
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 21
- 230000007704 transition Effects 0.000 claims abstract description 11
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 24
- 235000003283 Pachira macrocarpa Nutrition 0.000 claims description 19
- 241001083492 Trapa Species 0.000 claims description 19
- 235000014364 Trapa natans Nutrition 0.000 claims description 19
- 235000009165 saligot Nutrition 0.000 claims description 19
- 230000001680 brushing effect Effects 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 7
- 239000002344 surface layer Substances 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 5
- 239000010426 asphalt Substances 0.000 abstract 3
- 239000013521 mastic Substances 0.000 abstract 3
- 239000004575 stone Substances 0.000 abstract 3
- 238000003466 welding Methods 0.000 description 11
- 238000010276 construction Methods 0.000 description 8
- 239000010410 layer Substances 0.000 description 7
- 230000004888 barrier function Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000009413 insulation Methods 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009429 distress Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000004078 waterproofing Methods 0.000 description 1
Abstract
The utility model discloses an asphalt concrete core wall anti-seepage structure and belongs to the technical field of foundation engineering of a hydropower station. The asphalt concrete core wall anti-seepage structure comprises an upstream transition area, a concrete foundation, as well as an asphalt concrete core wall and stone mastic asphalt which are built on the concrete foundation; the stone mastic asphalt is coated at the surface of the concrete foundation from the position below the asphalt concrete core wall to the position below the upstream transition area; a water stop copper sheet is arranged below the asphalt concrete core wall and two planes of the water stop copper sheet respectively face to the upstream and downstream direction of a dam body. The water stop copper sheet is below the asphalt concrete core wall, so the effect of preventing the seepage between the contact surfaces of the asphalt concrete core wall and the concrete foundation is achieved; the upstream concrete foundation is subjected to surface layer anti-seepage processing by the stone mastic asphalt structure at the surface layer of the concrete foundation, so upstream water of the damp body is prevented from seeping along surface layer seams of concrete.
Description
Technical field
The utility model belongs to power station Foundation Design technical field, relates to asphalt concrete core dam common in a kind of construction of hydropower stations, specifically relates to a kind of asphaltic concrete core wall leakage preventing structure.
Background technology
Asphalt concrete core dam is that bituminous concrete wall is placed in to the middle earth and rockfill dam as antiseepage body of dam body.In power station Foundation Design is built, its adaptive deformation ability of asphalt concrete core dam Chang Yinwei is strong, barrier performance good, to water nonpollution, be subject to extraneous weather and illumination effect less, be easy to construction and the advantage such as maintenance, during the Foundation Design that is widely used in Dam is built.
In the dam engineering of western China is built, a lot of areas are in default of the earth material that meets seepage control of dam requirement, so a lot of dam design has all adopted asphalt concrete core dam structure.But engineering is after putting into operation, there is the large problem of pedestal Concrete Leakage amount in part dam body, maintenance rate is higher, through designer, investigate discovery, mostly the reason of dam generation seepage is because core-wall is combined not in place or occurs what caused in crack at construction period concrete surface with pedestal concrete surface.
Therefore, how effectively to solve the connectivity problem of asphaltic concrete core wall and pedestal concrete surface and the problem that surperficial distress in concrete forms seepage channel, become and further improve concrete core-wall dam structure, improve the key point of its barrier performance.
Utility model content
In order to address the above problem, the utility model provides a kind of asphaltic concrete core wall leakage preventing structure, thereby reached, prevents seepage, improves the effect of concrete core-wall dam seepage capability.
The utility model is achieved by following technical solution.
A kind of asphaltic concrete core wall leakage preventing structure, comprise upstream transition district, concrete pedestal, be built in asphaltic concrete core wall and pitch water chestnut fat on concrete pedestal, the brushing of described pitch water chestnut fat is on the concrete pedestal surface from asphaltic concrete core wall Xia Dao upstream transition district, below described asphaltic concrete core wall, be provided with copper seal, two planes of described copper seal are respectively towards the upstream and downstream direction of dam body.
Described copper seal is through pitch water chestnut fat, and one end embeds concrete pedestal, and the other end embeds asphaltic concrete core wall, the degree of depth >=30cm that two ends embed respectively.
The lateral length of described copper seal is identical with the length of asphaltic concrete core wall, and the number of plies can be 1 layer or 2 layers; The brushing thickness of described pitch water chestnut fat is 10～20mm.
The beneficial effects of the utility model are:
A kind of asphaltic concrete core wall leakage preventing structure described in the utility model, by copper seal being set under asphaltic concrete core wall, has reached the effect that prevents seepage between asphaltic concrete core wall and concrete pedestal contact surface; Meanwhile, by the pitch water chestnut fat structure on concrete pedestal top layer, upstream concrete pedestal has been carried out to top layer antiseepage and processed, stoped the water of dam body upstream along concrete surface layer gap leakage, it is simple in structure, easy construction, barrier performance is more reliable, has reduced the cost of later maintenance; In addition, because pitch water chestnut fat has good heat insulation effect, also save the Insulation of cold district concrete surface layer, reduced engineering cost and workload.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the partial structurtes schematic diagram at copper seal place in the utility model.
In figure: 1-asphaltic concrete core wall, 2-copper seal, 3-pitch water chestnut fat, 4-concrete pedestal, 5-upstream transition district, 6-dam body upstream, 7-dam body downstream.
The specific embodiment
Below in conjunction with accompanying drawing, further describe the technical solution of the utility model, but described in claimed scope is not limited to.
As shown in Figure 1 and Figure 2, a kind of asphaltic concrete core wall leakage preventing structure described in the utility model, comprise upstream transition district 5, concrete pedestal 4, be built in asphaltic concrete core wall 1 and pitch water chestnut fat 3 on concrete pedestal 4, described pitch water chestnut fat 3 brushings, on concrete pedestal 4 surfaces from asphaltic concrete core wall 1 Xia Dao upstream transition district 5, are provided with copper seal 2 below described asphaltic concrete core wall 1; Described copper seal 2 is through pitch water chestnut fat 3, and one end embeds concrete pedestal 4, and the other end embeds asphaltic concrete core wall 1, two plane respectively towards dam body upstream 6 directions and dam body downstream 7 directions; The lateral length of described copper seal 2 is identical with the length of asphaltic concrete core wall 1, and the number of plies can be 1 layer or 2 layers, and the length that upper and lower two ends embed respectively in asphaltic concrete core wall 1 and concrete pedestal 4 is not less than 30cm.
The surface of copper seal 2 should be smooth, clean, do not allowed layering, crackle peeling, plays thorn, bubble, backfin, has been mingled with and green embroidery; Copper seal 2 is to be formed by connecting by polylith copper sheet, copper sheet connects employing butt welding or overlap joint welding, while adopting butt welding, should adopt single-surface double-layer welding bead weld seam, can after butt welding, utilize if desired identical sealing shape and width to be not less than 60mm paster, the suitable two-sided welding of overlap joint welding, lap length is greater than 20mm; During welding, should adopt brass welding rod gas welding, not apply manual arc welding.
Pitch water chestnut fat 3 by pitch and filler according to a certain percentage heat mix evenly and form, there are tightness, water proofing property, freeze-proof, anti-corrosive properties, be difficult for season cracking.The viscosity requiring during the construction of pitch water chestnut fat is generally 10～1000Pas, brushing thickness 10～20mm, each brushing thickness is not more than 5mm, and adjacent operation need wait the next procedure of just can constructing of upper strata pitch water chestnut fat dry tack free, and being coated with the pitch water chestnut fat surface brushing should be smooth without bubble.
During construction, first the storehouse face after excavating about check and accept carries out pedestal concreting, while building to concrete surface layer, according to drawing requirement embedded water stop copper sheet 2, and the copper seal 2 exposing is protected; Then the concrete pedestal 4 external coating pitch water chestnut fat to dam body upstream 6 directions at the contact surface of asphaltic concrete core wall 1 and concrete pedestal 4, meet the requirements of thickness; Then carry out the rolling and placement construction of asphaltic concrete core wall 1 and upstream transition district 5 and downstream transition region 8; Finally, carry out the placement grinding of rockfill area, dam body upstream 9 and rockfill area, downstream 10, complete dam construction.
Embodiment of the present utility model is not limited to above-described embodiment, within the various variations of making under the prerequisite that does not depart from the utility model aim all belong to protection domain of the present utility model.
Claims (5)
1. an asphaltic concrete core wall leakage preventing structure, comprise upstream transition district (5), concrete pedestal (4), be built in asphaltic concrete core wall (1) and pitch water chestnut fat (3) on concrete pedestal (4), it is characterized in that: described pitch water chestnut fat (3) is brushed on concrete pedestal (4) surface from asphaltic concrete core wall (1) Xia Dao upstream transition district (5), in described asphaltic concrete core wall (1) below, be provided with copper seal (2), two planes of described copper seal (2) are respectively towards the upstream and downstream direction of dam body.
2. a kind of asphaltic concrete core wall leakage preventing structure according to claim 1, it is characterized in that: described copper seal (2) is through pitch water chestnut fat (3), one end embeds concrete pedestal (4), and the other end embeds asphaltic concrete core wall (1), the degree of depth >=30cm that two ends embed respectively.
3. a kind of asphaltic concrete core wall leakage preventing structure according to claim 1, is characterized in that: the number of plies of described copper seal (2) can be 1 layer or 2 layers.
4. a kind of asphaltic concrete core wall leakage preventing structure according to claim 1, is characterized in that: the lateral length of described copper seal (2) is identical with the length of asphaltic concrete core wall (1).
5. a kind of asphaltic concrete core wall leakage preventing structure according to claim 1, is characterized in that: the brushing thickness of described pitch water chestnut fat (3) is 10～20mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420147438.8U CN203890966U (en) | 2014-03-28 | 2014-03-28 | Asphalt concrete core wall anti-seepage structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420147438.8U CN203890966U (en) | 2014-03-28 | 2014-03-28 | Asphalt concrete core wall anti-seepage structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203890966U true CN203890966U (en) | 2014-10-22 |
Family
ID=51717388
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420147438.8U Expired - Lifetime CN203890966U (en) | 2014-03-28 | 2014-03-28 | Asphalt concrete core wall anti-seepage structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203890966U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105484209A (en) * | 2016-01-05 | 2016-04-13 | 中国电建集团华东勘测设计研究院有限公司 | Connecting structure of asphalt concrete core wall and concrete base and construction method of connecting structure |
| CN109356102A (en) * | 2018-11-23 | 2019-02-19 | 中国电建集团成都勘测设计研究院有限公司 | Asphaltic concrete core wall and dam foundation impervious wall connection structure |
| CN113032883A (en) * | 2021-04-01 | 2021-06-25 | 梁军 | Calculation method of earth-rock dam core wall thickness, determination method of core wall thickness design value and calculation method of medium material seepage flow |
| CN113756262A (en) * | 2021-10-22 | 2021-12-07 | 中水北方勘测设计研究有限责任公司 | Asphalt concrete core dam and construction method |
| CN115162273A (en) * | 2022-08-09 | 2022-10-11 | 中水东北勘测设计研究有限责任公司 | Slotted hole joint for deep covering layer impervious wall and rigid building |
| CN116716852A (en) * | 2023-08-02 | 2023-09-08 | 中水君信工程勘察设计有限公司 | Partition structure of asphalt concrete core wall rock-fill dam |
-
2014
- 2014-03-28 CN CN201420147438.8U patent/CN203890966U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105484209A (en) * | 2016-01-05 | 2016-04-13 | 中国电建集团华东勘测设计研究院有限公司 | Connecting structure of asphalt concrete core wall and concrete base and construction method of connecting structure |
| CN105484209B (en) * | 2016-01-05 | 2017-10-27 | 中国电建集团华东勘测设计研究院有限公司 | The attachment structure and its construction method of asphaltic concrete core wall and concrete pedestal |
| CN109356102A (en) * | 2018-11-23 | 2019-02-19 | 中国电建集团成都勘测设计研究院有限公司 | Asphaltic concrete core wall and dam foundation impervious wall connection structure |
| CN109356102B (en) * | 2018-11-23 | 2024-01-30 | 中国电建集团成都勘测设计研究院有限公司 | Asphalt concrete core wall and dam foundation impervious wall connecting structure |
| CN113032883A (en) * | 2021-04-01 | 2021-06-25 | 梁军 | Calculation method of earth-rock dam core wall thickness, determination method of core wall thickness design value and calculation method of medium material seepage flow |
| CN113756262A (en) * | 2021-10-22 | 2021-12-07 | 中水北方勘测设计研究有限责任公司 | Asphalt concrete core dam and construction method |
| CN115162273A (en) * | 2022-08-09 | 2022-10-11 | 中水东北勘测设计研究有限责任公司 | Slotted hole joint for deep covering layer impervious wall and rigid building |
| CN116716852A (en) * | 2023-08-02 | 2023-09-08 | 中水君信工程勘察设计有限公司 | Partition structure of asphalt concrete core wall rock-fill dam |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141022 |