CN203866776U - Connecting structure of geomembrane and concrete building - Google Patents
Connecting structure of geomembrane and concrete building Download PDFInfo
- Publication number
- CN203866776U CN203866776U CN201420174330.8U CN201420174330U CN203866776U CN 203866776 U CN203866776 U CN 203866776U CN 201420174330 U CN201420174330 U CN 201420174330U CN 203866776 U CN203866776 U CN 203866776U
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- geomembrane
- concrete
- groove
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- concrete building
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- 238000000034 method Methods 0.000 claims abstract description 4
- 230000008878 coupling Effects 0.000 claims description 8
- 238000010168 coupling process Methods 0.000 claims description 8
- 238000005859 coupling reaction Methods 0.000 claims description 8
- 230000006378 damage Effects 0.000 abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 3
- 238000010276 construction Methods 0.000 description 5
- 239000011435 rock Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
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Abstract
The utility model relates to a connecting structure of a geomembrane and a concrete building. The connecting structure of the geomembrane and the concrete building aims to strengthen the safe reliability of the connecting position of the geomembrane and the concrete building and to prevent water leakage or damage caused by local overlarge deformation; meanwhile, the structure is simple, the number of working procedures is small, implementing is easy, and the quality can be guaranteed. According to the technical scheme, the connecting structure of the geomembrane and the concrete building comprises a concrete cover plate arranged on the top of a curtain grouting band when a foundation is subjected to curtain grouting treatment or a concrete diaphragm wall used when the foundation is a deep covering layer, wherein a concrete cover plate is also arranged on the top of the diaphragm wall. The connecting structure of the geomembrane and the concrete building is characterized in that a groove is reserved in the concrete cover plate, the geomembrane is laid into the groove and is fixed by an anchor bolt and a nut, second phase concrete is further poured into the groove, the groove is filled with the concrete, the concrete is flush with the top, and a set length is reserved at the end, close to the axis of the concrete building, of the geomembrane.
Description
Technical field
The utility model relates to the syndeton of a kind of geomembrane and concrete structures.Be applicable to the water retaining structure such as earth and rockfill dam or earth rock cofferdam and adopt geomembrane during as antiseepage body, geomembrane and concrete cover (when basis adopts curtain grouting to process) or with the pattern that is connected of concrete cut (when basis is deep covering layer).
Background technology
The water retaining structure such as earth and rockfill dam or earth rock cofferdam often adopts geomembrane as antiseepage body.Geomembrane and substructure (being generally concrete) they are two kinds of distinct materials, its connecting portion comparatively weak link often, and particularly in high earthquake zone, in the time that earthquake occurs, junction is subject to and damages or destruction most.In engineering practice, often there is some geomembranes and the concrete structure junction event of leaking, gently cause reservoir leakage amount to strengthen, heavy jeopardize building safety, impact the normally adverse consequences such as operation of power station.
How to consider that geomembrane anti-seepage body and concrete structure connected mode in rock structure are safe and reliable, easy construction, is an important technology in geomembrane anti-seepage design and construction.
Summary of the invention
The technical problems to be solved in the utility model is: the syndeton that a kind of geomembrane and concrete structures are provided, object is to strengthen the security reliability of geomembrane and concrete structures junction, prevent from occurring because local distortion is excessive leaking or destroying, meanwhile, try hard to simple in structure, operation is few, easy enforcement, quality are guaranteed.
The technical scheme that the utility model adopts is: the syndeton of a kind of geomembrane and concrete structures, comprise the concrete cover at curtain grouting band top when basis adopts curtain grouting to process, or basis adopts concrete cut during for deep covering layer, concrete cover is also arranged at impervious wall top, it is characterized in that: reserved groove in described concrete cover, in groove, spread into geomembrane and by anchor screw bolt and nut and fix, in described groove, build again second stage concrete and fill up with top and flush, described geomembrane is at a reserved preseting length near concrete structures axis.
The geomembrane of described reserved preseting length is arranging expansion coupling apart from concrete structures 1-2m place, and expansion coupling is that inside folding three layers of geomembrane both sides form, and folded length 50-60cm, arranges PE diaphragm between every layer.
The reserved groove size of described concrete cover is wide 50cm, high 40cm.
The beneficial effects of the utility model are: 1) geomembrane is imbedded in preformed groove, adopt bolt anchoring, and use second stage concrete backfill, have ensured closure, the reliability of connecting portion, and safety is safe more.2) geomembrane is placed in earth and rockfill dam or earth rock cofferdam, can there be certain distortion construction period and runtime along with the distortion of dam body or cofferdam, in the time that it approaches concrete structure, geomembrane is folded with to expansion coupling, not only can make geomembrane can better adapt to the distortion of earth and rockfill dam or cofferdam building, and strengthened the flexibility of geomembrane and concrete rigid structure connecting portion, prevent that leaking or destroying from appearring because local distortion is excessive in junction in geomembrane.3) syndeton of geomembrane and concrete structures uncomplicated, operation is few, in work progress, more easily implements, and construction quality is guaranteed.4) greatly strengthen the security reliability of geomembrane and concrete structures junction, and obviously do not increased difficulty of construction and input, in engineering practice, there is very positive meaning.
Brief description of the drawings
Fig. 1 is the structural representation of an embodiment of the utility model.
Fig. 2 is the structural representation of another embodiment of the utility model.
Fig. 3 is the enlarged drawing of geomembrane expansion coupling in the utility model.
Detailed description of the invention
Embodiment mono-, as shown in Figure 1, Figure 3, the basis of the present embodiment adopts curtain grouting processing, curtain grouting band 9 top concreting cover plates 5, reserved groove in the time of concreting cover plate 5, be of a size of wide 50cm, high 40cm, spreads in groove into the geomembrane 1 that is not less than 80cm, and with the fixing geomembrane of crab-bolt 3 and nut 4, the spacing of adjacent two nut anchor components is generally 0.4-1.0m, and nut can adopt AM20, and crab-bolt length is about 0.6m.In described groove, build again second stage concrete, and groove is filled up with top and flushed.Concrete cover 5 use system anchor bolts 8 are reinforced with basement rock.
For making geomembrane 1 adapt to the distortion in dam body or cofferdam; this geomembrane 1 is at the reserved preseting length (according to the needs of Practical Project) near curtain grouting band 9 top axis 11; and apart from concrete cover 5 end face 1-2m places, expansion coupling 2 is being set; expansion coupling is that inside folding three layers of geomembrane both sides form; the about 50cm of folded length; the thick 0.2mm of PE diaphragm 12(is set between every layer), smear 0.1mm thick yellow oil with geomembrane contact surface.
Embodiment bis-, as shown in Figure 2 and Figure 3, the basis of the present embodiment is deep covering layer, adopt concrete cut 10, concrete cover 5 has also been built at impervious wall top, and cover plate both sides are concrete gathering sills 7, and the both sides of concrete gathering sill are fixed with microlith slag charge, all the other structures are identical with embodiment mono-, are no longer repeated in this description herein.
Claims (3)
1. the syndeton of a geomembrane and concrete structures, comprise the concrete cover (5) at curtain grouting band (9) top when basis adopts curtain grouting to process, or basis adopts concrete cut (10) during for deep covering layer, impervious wall top is also provided with concrete cover (5), it is characterized in that: reserved groove in described concrete cover (5), in groove, spread into geomembrane (1) fixing by crab-bolt (3) and nut (4), in described groove, build again second stage concrete and fill up with top and flush, described geomembrane (1) is at a reserved preseting length near concrete structures axis (11).
2. the syndeton of geomembrane according to claim 1 and concrete structures; it is characterized in that: the geomembrane (1) of described reserved preseting length is arranging expansion coupling (2) apart from concrete structures 1-2m place; expansion coupling is that inside folding three layers of geomembrane both sides form; folded length 50-60cm, arranges PE diaphragm (12) between every layer.
3. the syndeton of geomembrane according to claim 1 and 2 and concrete structures, is characterized in that: the reserved groove size of described concrete cover (5) is wide 50cm, high 40cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420174330.8U CN203866776U (en) | 2014-04-11 | 2014-04-11 | Connecting structure of geomembrane and concrete building |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420174330.8U CN203866776U (en) | 2014-04-11 | 2014-04-11 | Connecting structure of geomembrane and concrete building |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203866776U true CN203866776U (en) | 2014-10-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420174330.8U Expired - Fee Related CN203866776U (en) | 2014-04-11 | 2014-04-11 | Connecting structure of geomembrane and concrete building |
Country Status (1)
| Country | Link |
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| CN (1) | CN203866776U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105544570A (en) * | 2016-01-21 | 2016-05-04 | 浙江省水利水电勘测设计院 | Connecting structure for earth rock cofferdam seepage-proof geomembrane and concrete cofferdam |
| CN109469019A (en) * | 2018-12-13 | 2019-03-15 | 中国电建集团贵阳勘测设计研究院有限公司 | A kind of geomembrane core-wall and rigid cut-pff wall connection structure |
| CN109736452A (en) * | 2019-01-03 | 2019-05-10 | 北京京水建设集团有限公司 | A kind of construction method of conditioning tank leakage preventing structure |
-
2014
- 2014-04-11 CN CN201420174330.8U patent/CN203866776U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105544570A (en) * | 2016-01-21 | 2016-05-04 | 浙江省水利水电勘测设计院 | Connecting structure for earth rock cofferdam seepage-proof geomembrane and concrete cofferdam |
| CN109469019A (en) * | 2018-12-13 | 2019-03-15 | 中国电建集团贵阳勘测设计研究院有限公司 | A kind of geomembrane core-wall and rigid cut-pff wall connection structure |
| CN109469019B (en) * | 2018-12-13 | 2024-03-19 | 中国电建集团贵阳勘测设计研究院有限公司 | Geomembrane core wall and rigid impervious wall connection structure |
| CN109736452A (en) * | 2019-01-03 | 2019-05-10 | 北京京水建设集团有限公司 | A kind of construction method of conditioning tank leakage preventing structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141008 |