CN202745006U - Core wall dam bank slope overlap joint type dam foundation gallery structure - Google Patents
Core wall dam bank slope overlap joint type dam foundation gallery structure Download PDFInfo
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- CN202745006U CN202745006U CN 201220388743 CN201220388743U CN202745006U CN 202745006 U CN202745006 U CN 202745006U CN 201220388743 CN201220388743 CN 201220388743 CN 201220388743 U CN201220388743 U CN 201220388743U CN 202745006 U CN202745006 U CN 202745006U
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Abstract
The utility model discloses a core wall dam bank slope overlap joint type dam foundation gallery structure. The core wall dam bank slope overlap joint type dam foundation gallery structure is simple, and a structural joint is unlikely to lose the water-proof effect due to external force action. The core wall dam bank slope overlap joint type dam foundation gallery structure comprises a dam foundation gallery arranged on a bed rock foundation and a riverbed covering layer, wherein the dam foundation gallery comprises a wall body and an inner cavity surrounded by the wall body; the dam foundation gallery is provided with the structural joint along the circumference of the dam foundation gallery; the inside of the structural joint is provided with circumferential waterstops; a basic covering boundary is formed on a border between the bed rock foundation and the riverbed covering layer; the structural joint is arranged on the dam foundation gallery corresponding to the bed rock foundation; and distance between the structural joint and the basic covering boundary is 1-30m. The structural joint of the dam foundation gallery arranged on the bed rock foundation and the riverbed covering layer in a core wall rock-fill dam corresponds to the bed rock foundation, a riverbed section dam foundation gallery is overlapped on the bed rock by a similar simply supported beam structure, and the phenomenon that the waterstop in the structural joint is broken due to overlarge uneven sedimentation is avoided.
Description
Technical field
The utility model relates to a kind of dam foundation gallery structure, relates in particular to a kind of core wall dam bank slope overlapping dam foundation gallery structure.
Background technology
Dam foundation gallery is mainly used in the core wall rockfill dam of Hydraulic and Hydro-Power Engineering, and the main purpose of its setting is to carry out foundation grout curtain, to save the duration, is convenient to simultaneously the monitoring of dam construction phase and runtime, later stage seepage control system maintenance reinforcement etc.
At present, a lot of core wall rockfill dam basic conditions are: two sides basement rock, Riverbed, because the differential settlement on the effect of dam and two sides and basis, riverbed is larger, bring certain difficulty for the setting of dam foundation gallery.Existing dam foundation gallery operated by rotary motion is on basement foundation and Riverbed, described dam foundation gallery comprises body of wall and the inner chamber that is surrounded by body of wall, circumferentially be provided with structural joint along dam foundation gallery on the described dam foundation gallery, be provided with the border waterstop in the described structural joint, the boundary line between basement foundation and the Riverbed forms base and covers the boundary line.Because dam foundation gallery is the steel concrete rigid structures, for adapting to uneven settlement of foundation, dam foundation gallery is general, and just covering the place, boundary line at base arranges structural joint, but in the practice, often because differential settlement is excessive, causes structural joint shearing, stretcher strain greatly and then cause that sealing is cut off in the structural joint, thereby cause percolating water, bring certain adverse effect to engineering, and the later stage reinforcement, to repair difficulty larger.
The utility model content
The technical problem that the utility model solves provides a kind of simple in structure and difficult core wall dam bank slope overlapping dam foundation gallery structure that loses waterproof effect because of External Force Acting of structural joint.
The technical scheme that its technical problem that solves the utility model adopts is: core wall dam bank slope overlapping dam foundation gallery structure, comprise the dam foundation gallery that is arranged on basement foundation and the Riverbed, described dam foundation gallery comprises body of wall and the inner chamber that is surrounded by body of wall, circumferentially be provided with structural joint along dam foundation gallery on the described dam foundation gallery, be provided with the border waterstop in the described structural joint, boundary line between basement foundation and the Riverbed forms base and covers the boundary line, described structural joint is arranged on dam foundation gallery corresponding to basement foundation, and described structural joint is 1～30m apart from the distance that described base covers the boundary line.
Further be: cover the flexible sealing layer of described structural joint along circumferentially being provided with of dam foundation gallery, described flexible sealing layer is fixed on by flexible sealing layer fixed structure on the external surface of body of wall of dam foundation gallery.
Further be: described flexible sealing layer fixed structure comprises the rubber tile that covers flexible sealing layer, described rubber tile by with steel with the external surface of the body of wall that is bolted to dam foundation gallery that links to each other with steel on.
Further be: the external surface of body of wall that described base covers the dam foundation gallery of both sides, boundary line is provided with anti-leakage layer, described anti-leakage layer is 1～50m along an end that axially covers the boundary line away from base of dam foundation gallery apart from the distance that base covers the boundary line, and described anti-leakage layer is fixed on by the anti-leakage layer fixed structure on the external surface of body of wall of dam foundation gallery.
Further be: described anti-leakage layer fixed structure comprise along dam foundation gallery circumferentially with the ring steel belt of anti-leakage layer banding be used for ring steel belt is fixed on bolt on the body of wall of dam foundation gallery.
Further be: the body of wall inside of described dam foundation gallery is embedded with grout pipe, and an end of described grout pipe is communicated with structural joint, and the other end of grout pipe is communicated with the inner chamber of dam foundation gallery.
Further be: after circumferentially being provided with of dam foundation gallery, water piece on the inner surface of the body of wall of described dam foundation gallery, water piece after described and be symmetrically distributed in the both sides of described structural joint, and watering the one group of dowel 10 that is provided with in the piece in the body of wall 1 of imbedding dam foundation gallery 18 after described, is 50～100cm along the distance of the axial distance structural joint 2 dowel 10 distance structures seam 2 farthest of dam foundation gallery 18.
The beneficial effects of the utility model are: place the structural joint of the dam foundation gallery on basement foundation and the Riverbed corresponding with basement foundation in the core wall rockfill dam, similar simple beam structure is overlapped on the basement rock river-bed section dam foundation gallery.Avoided causing the waterstop in the structural joint to cut up because differential settlement is excessive, the structural joint surface perimeter arranges flexible sealing layer and ensures together for the safety increase of structural joint again.Base covers the external surface parcel of body of wall of dam foundation gallery of both sides, boundary line certain limit with the anti-leakage layer of fixture, place, boundary line stress is excessive to cause dam foundation gallery cracking and leaking of may causing because base covers to a certain degree avoiding for this, consider that simultaneously the structural joint sealing that the factors such as engineering construction quality control and runtime dam deformation, foundation settlement may cause destroys, and waters piece as later stage reparation, reinforcement pre-embedment grouting pipe, dowel and cloth postpone in the dam foundation gallery of structural joint both sides.The utility model is a kind of simple, reasonable, reliable core wall rockfill dam dam foundation gallery structure, can effectively guarantee the normal operation of dam foundation gallery, guarantees the dam security of operation.
Description of drawings
Fig. 1 is that structural joint is arranged on the schematic diagram on the basement foundation;
Fig. 2 be grout pipe and after water the set-up mode schematic diagram of piece;
Fig. 3 is the B-B sectional drawing of Fig. 1;
Fig. 4 is the C-C sectional drawing of Fig. 1;
Be labeled as among the figure: body of wall 1, structural joint 2, border waterstop 3, flexible sealing layer 4, ring steel belt 5, anti-leakage layer 6, rubber tile 7, the first bolts 8, grout pipe 9, dowel 10, after water piece 11, the second bolts 12, basement foundation 13, Riverbed 14, base cover boundary line 16, inner chamber 17, dam foundation gallery 18.
The specific embodiment
Below in conjunction with the drawings and specific embodiments the utility model is further specified.
As shown in Figures 1 to 4, core wall dam bank slope overlapping dam foundation gallery structure of the present utility model, comprise the dam foundation gallery 18 that is arranged on basement foundation 13 and the Riverbed 14, described dam foundation gallery 18 comprises body of wall 1 and the inner chamber 17 that is surrounded by body of wall, circumferentially be provided with structural joint 2 along dam foundation gallery 18 on the described dam foundation gallery 18, be provided with border waterstop 3 in the described structural joint 2, boundary line between basement foundation 13 and the Riverbed 14 forms base and covers boundary line 16, described structural joint 2 is arranged on dam foundation gallery corresponding to basement foundation, and described structural joint 2 is 1～30m apart from the distance that described base covers boundary line 16.Said structure seam 2 is positioned on the basement foundation 13, but not covers on the boundary line 16 as being positioned at base in the prior art.Avoided causing the waterstop in the structural joint to cut up because differential settlement is excessive.
For on the basis of the above, further guarantee the stagnant water effect that structural joint is good, cover the flexible sealing layer 4 of described structural joint 2 along circumferentially being provided with of dam foundation gallery 18, described flexible sealing layer 4 is fixed on by flexible sealing layer fixed structure on the external surface of body of wall 1 of dam foundation gallery 18.Flexible sealing layer 4 material therefor can adopt the SR flexible filler that can directly buy or GB flexible filler etc.The embodiment of above-mentioned flexible sealing layer fixed structure has multiple, for example can cover by steel plate fixing.Preferred embodiment is: as shown in Figure 2, described flexible sealing layer fixed structure comprises the rubber tile 7 that covers flexible sealing layer 4, described rubber tile 7 by with steel be fixed on the external surface of body of wall 1 of dam foundation gallery 18 with the first bolt 8 that links to each other with steel.This fixed structure is very firm.
For fear of place, boundary line stress is excessive to cause dam foundation gallery cracking and leaking of may causing because base covers, as shown in Figure 1 and Figure 4, the external surface of body of wall that described base covers the dam foundation gallery of 16 both sides, boundary line is provided with anti-leakage layer 6, described anti-leakage layer 6 is 1～50m along an end that axially covers boundary line 16 away from base of dam foundation gallery 18 apart from the distance that base covers boundary line 16, and described anti-leakage layer 6 is fixed on by the anti-leakage layer fixed structure on the external surface of body of wall 1 of dam foundation gallery 18.Above-mentioned anti-leakage layer 6 can be made by various anti-seepage materials, such as pitch antiseepage film or sheet rubber etc.The embodiment of above-mentioned anti-leakage layer fixed structure has multiple, for example can comprise steel plate and bolt.Preferred embodiment is: described anti-leakage layer fixed structure comprise along dam foundation gallery circumferentially with the ring steel belt 5 of anti-leakage layer banding be used for ring steel belt 5 is fixed on the second bolt 12 on the body of wall 1 of dam foundation gallery 18.Said structure has simple and fixed characteristics.
On the basis of the above, consider that the structural joint sealing that the factors such as engineering construction quality control and runtime dam deformation, foundation settlement may cause destroys, and waters piece as later stage reparation, reinforcement pre-embedment grouting pipe, dowel and cloth postpone in the dam foundation gallery of structural joint both sides.Be specially, as shown in Figure 2, body of wall 1 inside of described dam foundation gallery 18 is embedded with grout pipe 9, and an end of described grout pipe 9 is communicated with structural joint 2, and the other end of grout pipe 9 is communicated with the inner chamber 17 of dam foundation gallery 18.After circumferentially being provided with of dam foundation gallery 18, water piece 11 on the inner surface of the body of wall 1 of described dam foundation gallery 18, water piece 11 after described and be symmetrically distributed in the both sides of described structural joint 2, and watering the one group of dowel 10 that is provided with in the piece 11 in the body of wall 1 of imbedding dam foundation gallery 18 after described, is 50～100cm along the distance of the axial distance structural joint 2 dowel 10 distance structures seam 2 farthest of dam foundation gallery 18.
Claims (7)
1. core wall dam bank slope overlapping dam foundation gallery structure, comprise the dam foundation gallery (18) that is arranged on basement foundation (13) and the Riverbed (14), the inner chamber (17) that described dam foundation gallery (18) comprises body of wall (1) and surrounded by body of wall, described dam foundation gallery (18) is upper circumferentially to be provided with structural joint (2) along dam foundation gallery (18), be provided with border waterstop (3) in the described structural joint (2), boundary line between basement foundation (13) and the Riverbed (14) forms base and covers boundary line (16), it is characterized in that: described structural joint (2) is arranged on dam foundation gallery corresponding to basement foundation, and described structural joint (2) is 1～30m apart from the distance that described base covers boundary line (16).
2. core wall dam bank slope overlapping dam foundation gallery structure as claimed in claim 1, it is characterized in that: cover the flexible sealing layer (4) of described structural joint (2) along circumferentially being provided with of dam foundation gallery (18), described flexible sealing layer (4) is fixed on by flexible sealing layer fixed structure on the external surface of body of wall (1) of dam foundation gallery (18).
3. core wall dam bank slope overlapping dam foundation gallery structure as claimed in claim 2, it is characterized in that: described flexible sealing layer fixed structure comprises the rubber tile that covers flexible sealing layer (4), described rubber tile by with steel be fixed on the external surface of body of wall (1) of dam foundation gallery (18) with the first bolt (8) that links to each other with steel.
4. core wall dam bank slope overlapping dam foundation gallery structure as claimed in claim 1, it is characterized in that: the external surface of body of wall that described base covers the dam foundation gallery of both sides, boundary line (16) is provided with anti-leakage layer (6), described anti-leakage layer (6) is 1～50m along an end that axially covers boundary line (16) away from base of dam foundation gallery (18) apart from the distance that base covers boundary line (16), and described anti-leakage layer (6) is fixed on by the anti-leakage layer fixed structure on the external surface of body of wall (1) of dam foundation gallery (18).
5. core wall dam bank slope overlapping dam foundation gallery structure as claimed in claim 4 is characterized in that: described anti-leakage layer fixed structure comprise along dam foundation gallery circumferentially with the ring steel belt (5) of anti-leakage layer banding be used for ring steel belt (5) is fixed on the second bolt (12) on the body of wall (1) of dam foundation gallery (18).
6. core wall dam bank slope overlapping dam foundation gallery structure as claimed in claim 1, it is characterized in that: body of wall (1) inside of described dam foundation gallery (18) is embedded with grout pipe (9), one end of described grout pipe (9) is communicated with structural joint (2), and the other end of grout pipe (9) is communicated with the inner chamber (17) of dam foundation gallery (18).
7. core wall dam bank slope overlapping dam foundation gallery structure as claimed in claim 1, it is characterized in that: after circumferentially being provided with of dam foundation gallery (18), water piece (11) on the inner surface of the body of wall (1) of described dam foundation gallery (18), water piece (11) after described and be symmetrically distributed in the both sides of described structural joint (2), and watering the one group of dowel (10) that is provided with in the piece (11) in the body of wall (1) of imbedding dam foundation gallery (18) after described, is 50～100cm along the distance of the axial distance structural joint (2) of dam foundation gallery (18) dowel (10) distance structure seam (2) farthest.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220388743 CN202745006U (en) | 2012-08-07 | 2012-08-07 | Core wall dam bank slope overlap joint type dam foundation gallery structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220388743 CN202745006U (en) | 2012-08-07 | 2012-08-07 | Core wall dam bank slope overlap joint type dam foundation gallery structure |
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| Publication Number | Publication Date |
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| CN202745006U true CN202745006U (en) | 2013-02-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220388743 Expired - Lifetime CN202745006U (en) | 2012-08-07 | 2012-08-07 | Core wall dam bank slope overlap joint type dam foundation gallery structure |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104404919A (en) * | 2014-12-03 | 2015-03-11 | 中国电建集团成都勘测设计研究院有限公司 | Dam foundation corridor and bank slope bedrock connecting structure |
| CN105239534A (en) * | 2015-10-09 | 2016-01-13 | 中国电建集团成都勘测设计研究院有限公司 | Connecting structure for dam foundation gallery and dam body core wall |
| CN105507219A (en) * | 2015-12-07 | 2016-04-20 | 中国水利水电科学研究院 | Method of preventing galleries in high concrete dam from arching and preventing bottom plate from cracking |
| 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 |
-
2012
- 2012-08-07 CN CN 201220388743 patent/CN202745006U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104404919A (en) * | 2014-12-03 | 2015-03-11 | 中国电建集团成都勘测设计研究院有限公司 | Dam foundation corridor and bank slope bedrock connecting structure |
| CN105239534A (en) * | 2015-10-09 | 2016-01-13 | 中国电建集团成都勘测设计研究院有限公司 | Connecting structure for dam foundation gallery and dam body core wall |
| CN105507219A (en) * | 2015-12-07 | 2016-04-20 | 中国水利水电科学研究院 | Method of preventing galleries in high concrete dam from arching and preventing bottom plate from cracking |
| 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: The North Qingyang District of Chengdu City, Sichuan Province, No. 610072 Patentee after: HYDROCHINA CHENGDU ENGINEERING Corp. Address before: The North Qingyang District of Chengdu City, Sichuan Province, No. 610072 Patentee before: POWERCHINA Chengdu Engineering Corporation Limited |
|
| C56 | Change in the name or address of the patentee |
Owner name: CHINA POWER GROUP CHENGDU INVESTIGATION DESIGN + R Free format text: FORMER NAME: CHENGDU HYDROELECTRIC INVESTIGATION + DESIGN INSTITUTE OF SPC |
|
| CP01 | Change in the name or title of a patent holder |
Address after: The North Qingyang District of Chengdu City, Sichuan Province, No. 610072 Patentee after: POWERCHINA Chengdu Engineering Co.,Ltd. Address before: The North Qingyang District of Chengdu City, Sichuan Province, No. 610072 Patentee before: HYDROCHINA CHENGDU ENGINEERING Corp. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130220 |