CN202164579U - Stepped concrete connecting structure for seepage-proof geomembrane of earth-rock dam or cofferdam and abrupt slope rock foundation - Google Patents
Stepped concrete connecting structure for seepage-proof geomembrane of earth-rock dam or cofferdam and abrupt slope rock foundation Download PDFInfo
- Publication number
- CN202164579U CN202164579U CN 201120256051 CN201120256051U CN202164579U CN 202164579 U CN202164579 U CN 202164579U CN 201120256051 CN201120256051 CN 201120256051 CN 201120256051 U CN201120256051 U CN 201120256051U CN 202164579 U CN202164579 U CN 202164579U
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- abrupt slope
- rock
- seepage
- geomembrane
- connecting structure
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Abstract
The utility model relates to a stepped concrete connecting structure for a seepage-proof geomembrane of an earth-rock dam or a cofferdam and an abrupt slope rock foundation. The technical scheme is that the poured stepped concrete connecting structure is arranged on the abrupt slope bed rocks. Horizontal rectangular grooves and vertical rectangular grooves for embedding seepage-proof geomembranes are reserved on the steps along the connection direction of the geomembrane and the foundation. A plurality of anchor rods are embedded in the abrupt slope bed rocks. The stepped concrete connecting structure for the seepage-proof geomembrane of the earth-rock dam or the cofferdam and the abrupt slope rock foundation has the advantages that the connecting structure can adapt to the abrupt slope rock foundation, construction is convenient, and seepage-proof quality can be guaranteed well. The stepped concrete connecting structure is suitable for the abrupt slope bed rock foundation with abrupt slope bed rock conditions that the height of slope is 30 meters and the slope is larger than 59 degrees.
Description
Technical field
The utility model relates to the anti-seepage geomembrane and the step-like concrete syndeton of abrupt slope rock foundation in a kind of earth and rockfill dam or cofferdam; Be applicable to that mainly the earth and rockfill dam of water conservancy and hydropower industry or the anti-seepage geomembrane in cofferdam are connected with the abrupt slope rock foundation, particularly be arranged in the earth and rockfill dam in " V " shape river valley or the application that the cofferdam utilizes geomembrane anti-seepage.
Background technology
When water conservancy and hydropower industry, the employing geomembrane anti-seepage in earth and rockfill dam or cofferdam, the anti-seepage geomembrane top should be fixed; Imbed in the dam crest anchoring ditch; Its bottom must embed at the bottom of the dam, as is pervious foundation, and geomembrane should closely be connected with upper reaches impervious wall or cut-off wall; And should connect airtight with bank slope and all other antiseepage bodies, constitute the complete closed system.The concrete structure of geomembrane closed system can adopt different structure type respectively according to ground soil condition and works type.When being connected with rock foundation, be employed in cutting on the rock foundation usually, with fill concrete anti-seepage geomembrane is anchored on the rock foundation; But under the situation of bank slope batholith steep (for example the gradient is suddenly in 45 °), basement rock cutting, fill concrete construction be difficulty comparatively, and the anti-seepage connector quality can not get guaranteeing, causes the seepage situation of concentrating.
This step-like concrete structure just in time overcomes the above problems.
The utility model content
The technical problem that the utility model will solve is to the prior art deficiency, to provide a kind of strong to abrupt slope rock foundation compliance, and do not need cutting to handle, be convenient to the structure that anti-seepage geomembrane is connected with ground.
For solving the problems of the technologies described above, the technical scheme that the utility model adopted is: the step-like concrete syndeton of building is arranged on the basement rock of abrupt slope; Be connected trend with ground along geomembrane, on step, leave level to vertical to being used to bury underground the anti-seepage geomembrane rectangular channel; Bury many anchor pole on the basement rock of abrupt slope underground.
Further improvement also is included in the grouted cut off wall that is provided with in the basement rock of abrupt slope.
Step width, height can adapt to the Adjusting Shape of abrupt slope rock foundation; The thickness of step Transverse to the flow direction is adjusted according to the dash head.
Concrete strength can be selected in C10～C30 scope according to the dash head.
The job practices of the utility model is: 1. along the setting-out of antiseepage axis; 2. remove loose rock mass on the antiseepage axis; 3. connect anchor pole 1 construction; 4. from low to high on bedrock surface 9 formwork erection build step-like concrete 2, and the level that is reserved with to rectangular channel 3 with vertical to rectangular channel 4; 5. on this structure, carry out curtain grouting 5 constructions of bank slope basement rock along the antiseepage axis; 6. geomembrane 7 is imbedded in the step-like concrete 2 to rectangular channel 3 and the vertical anchoring concrete 6 of in rectangular channel 4, building in level, realized that geomembrane 7 effectively is connected with ground; 7. geomembrane upstream and downstream side soil stone fills rising
This step-like syndeton can be used as the operation platform of bank slope basement rock curtain grouting.
Compared with prior art, the beneficial effect that the utility model had is: the utility model syndeton can adapt to the abrupt slope rock foundation, convenient construction, and the antiseepage quality can better be guaranteed.The sloping high 30m, the gradient that the utility model can be applicable to the abrupt slope rock foundation is greater than 59 ° abrupt slope ROCK CONDITIONS.
Description of drawings
Fig. 1 is the structural plan figure of the utility model.
Fig. 2 is the construction profile figure of the utility model.
Fig. 3 is the structure drawing in side sectional elevation figure of the utility model.
The specific embodiment
Like Fig. 1-shown in Figure 3, the utility model structure construction program is: 1. along the setting-out of antiseepage axis; 2. remove loose rock mass on the antiseepage axis; 3. connect anchor pole 1 construction; 4. from low to high on bedrock surface 9 formwork erection build step-like concrete 2, and the level that is reserved with to rectangular channel 3 with vertical to rectangular channel 4; 5. on this structure, carry out the curtain grouting construction formation grouted cut off wall 5 of bank slope basement rock along the antiseepage axis; 6. geomembrane 7 is imbedded in the step-like concrete 2 to rectangular channel 3 and the vertical anchoring concrete 6 of in rectangular channel 4, building in level, realized that geomembrane 7 effectively is connected with ground; 7. geomembrane upstream and downstream side soil stone fills rising.
Claims (2)
1. the step-like concrete syndeton of the anti-seepage geomembrane in earth and rockfill dam or cofferdam and abrupt slope rock foundation comprises the abrupt slope basement rock, it is characterized in that on the basement rock of abrupt slope, having the step-like concrete syndeton of building; Be connected trend with ground along geomembrane, on step, leave respectively and be used to bury underground the anti-seepage geomembrane level to rectangular channel and vertical to rectangular channel; Bury many anchor pole on the basement rock of abrupt slope underground.
2. the step-like concrete syndeton of the anti-seepage geomembrane in earth and rockfill dam according to claim 1 or cofferdam and abrupt slope rock foundation is characterized in that also being included in the grouted cut off wall that is provided with in the basement rock of abrupt slope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120256051 CN202164579U (en) | 2011-07-19 | 2011-07-19 | Stepped concrete connecting structure for seepage-proof geomembrane of earth-rock dam or cofferdam and abrupt slope rock foundation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120256051 CN202164579U (en) | 2011-07-19 | 2011-07-19 | Stepped concrete connecting structure for seepage-proof geomembrane of earth-rock dam or cofferdam and abrupt slope rock foundation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202164579U true CN202164579U (en) | 2012-03-14 |
Family
ID=45800418
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120256051 Expired - Lifetime CN202164579U (en) | 2011-07-19 | 2011-07-19 | Stepped concrete connecting structure for seepage-proof geomembrane of earth-rock dam or cofferdam and abrupt slope rock foundation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202164579U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103243681A (en) * | 2013-05-16 | 2013-08-14 | 黄河勘测规划设计有限公司 | Flexible connection method for geomembrane for earth and rockfill dam seepage proofing and concrete building |
| CN109629516A (en) * | 2019-01-21 | 2019-04-16 | 岳胜利 | A kind of earth-rock dam deep-base seepage-control water-stopping structure for water conservancy and hydropower project |
-
2011
- 2011-07-19 CN CN 201120256051 patent/CN202164579U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103243681A (en) * | 2013-05-16 | 2013-08-14 | 黄河勘测规划设计有限公司 | Flexible connection method for geomembrane for earth and rockfill dam seepage proofing and concrete building |
| CN109629516A (en) * | 2019-01-21 | 2019-04-16 | 岳胜利 | A kind of earth-rock dam deep-base seepage-control water-stopping structure for water conservancy and hydropower project |
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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 |
Owner name: HYDROCHINA ZHONGNAN ENGINEERING CORPORATION Free format text: FORMER NAME: ZHONGNAN PROSPECTING DESIGN INST. CHINA HYDRAUELECTRIC CONSULTANT GROUP Owner name: CHINA POWER GROUP ZHONGNAN INVESTIGATION DESIGN + Free format text: FORMER NAME: HYDROCHINA ZHONGNAN ENGINEERING CORPORATION |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 410014 Hunan province Changsha Yuhua District, camphor Road No. 16 Patentee after: POWERCHINA ZHONGNAN ENGINEERING Corp.,Ltd. Address before: 410014 Hunan province Changsha Yuhua District, camphor Road No. 16 Patentee before: HYDROCHINA ZHONGNAN ENGINEERING Corp. |
|
| CP03 | Change of name, title or address |
Address after: 410014 Hunan province Changsha Yuhua District, camphor Road No. 16 Patentee after: HYDROCHINA ZHONGNAN ENGINEERING Corp. Address before: 410014, 9 camphor Road, Yuhua District, Hunan, Changsha Patentee before: Mid-South Hydroelectric Investigation & Design Institute of China Hydropower Engineering Consulting Group |
|
| CX01 | Expiry of patent term |
Granted publication date: 20120314 |
|
| CX01 | Expiry of patent term |