CN101691744A - Overflow pre-settling construction method for concrete face rock-fill dam - Google Patents
Overflow pre-settling construction method for concrete face rock-fill dam Download PDFInfo
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- CN101691744A CN101691744A CN200910272303A CN200910272303A CN101691744A CN 101691744 A CN101691744 A CN 101691744A CN 200910272303 A CN200910272303 A CN 200910272303A CN 200910272303 A CN200910272303 A CN 200910272303A CN 101691744 A CN101691744 A CN 101691744A
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Abstract
The invention discloses an overflow pre-settling construction method for a concrete face rock-fill dam, which comprises the following steps: placing empty reinforcement gabions in order and welding the gabions to form a whole, and then filling stones into the gabions; piling up the reinforcement gabions along the downstream side slope of the rock-fill dam body, and connecting the reinforcement gabions by reinforcements to form a whole; and anchoring the reinforcement gabions and mountains at two shores together by using screw thread reinforcements as anchor rods, and finishing overflow pre-settling after the water flows through the dam. In the overflow pre-settling construction method for the concrete face rock-fill dam, the downstream side slope of the rock-fill dam body can stand the erosion of multiple flash floods after adopting the reinforcement gabion protection construction; at the flash flood of a flood season, the dam surface of the rock-fill dam body produces settlement due to overflowing, so the compactness of the rock-fill dam body is passively improved, the settling deformation of the rock-fill dam body is accelerated, the overflowing is equivalent to releasing the settlement of the rock-fill dam body, and the method is favorable for settling deformation control and stable safety of the rock-fill dam body.
Description
Technical field
The invention belongs to the Concrete Face Rockfill Dam construction field.
Technical background
In Concrete Face Rockfill Dam construction construction,, usually have to organize enrockment dam body filling construction at plum rain season owing to reasons such as durations.Because mountain stream rises to fall suddenly suddenly, Freshets roar down from the mountains comes soon, goes also soon, hard to guard against, whenever this rising suddenly that runs into the mountain area set flood when breaking out suddenly, because the Diversion Tunnel flood carrying capacity is limited, gently then the enrockment dam body is destroyed by rush of water, and weight person's construction equipment even personnel may produce injures and deaths.
Summary of the invention
The objective of the invention is to provide a kind of middle-size and small-size overflow pre-settling construction method for concrete face rock-fill dam.
The object of the present invention is achieved like this: a kind of overflow pre-settling construction method for concrete face rock-fill dam,
A. empty reinforced gabion is put neatly and after integrally welded, is loaded stone in gabion;
B. reinforced gabion is piled up along enrockment dam body downstream side slope one word, links into an integrated entity with reinforcing bar each other;
C. do anchor pole with indented bars, with reinforced gabion and two sides massif anchor together, treat that water flows through the dam after, finished the pre-sedimentation of water.
Reinforced gabion is built by laying bricks or stones along the enrockment dam body and highly is no more than upstream dam facing reclamation level.
Reinforced gabion length * wide 300 * the 200cm that is not less than.
Overflow pre-settling construction method for concrete face rock-fill dam provided by the invention, domatic to enrockment dam body downstream side, after taking the reinforced gabion construction of prevention work, can stand the test that repeatedly Freshets roar down from the mountains washes away; When flood season, Freshets roar down from the mountains, enrockment dam body dam facing is because of crossing the water generates sedimentation, and the passive compactness that improves the enrockment dam body has been quickened the sedimentation and deformation of enrockment dam body, cross water and be equivalent to and will have discharged the sedimentation of loose rock dam dam bodys in advance, the sedimentation and deformation control and the safety of dam body that help the enrockment dam body are stable.
Description of drawings
Below in conjunction with accompanying drawing and example invention is described further.
Fig. 1 is a sectional structure schematic diagram of the present invention.
Fig. 2 is a schematic diagram after reinforced gabion of the present invention is jettisoninged.
Among the figure, 1 piles up for the rock downstream fresh limestone of dam slope, and 2 is the reinforced gabion bank protection, and 3 is reinforced gabion, 4 enrockment area concrete masks, and 5 for connecting anchor pole, and 6 is the reinforced gabion river bottom protection.
The specific embodiment
Operating principle of the present invention is as follows: in the Filling Construction of Concrete Face Rockfill Dam process, wash away enrockment dam body damage situations analysis later according to mountain torrents, find that the above dam body of loose rock dam center line is not damaged substantially, but the dam center line is then ruined serious with the lower part dam body in the major river bed part, that have even can be washed into wide nearly several meters, reach several meters coombe deeply, the limit part is then intact substantially but pull in to shore in the loose rock dam downstream.According to this situation, through repeatedly investigating correlation engineering and checking through engineering practice, to the limited medium and small project of flow conductivity, domatic to enrockment dam body downstream side, after taking the reinforced gabion construction of prevention work, can stand the test that repeatedly Freshets roar down from the mountains washes away, and the total settling amount of enrockment dam body is more much smaller than design in advance, has obtained the goodish construction period to cross the pre-sedimentation construction effect of water.
Embodiment:
A. empty reinforced gabion 3 is put neatly and after integrally welded, is loaded stone in gabion 3;
B. reinforced gabion 3 is piled up along enrockment dam body downstream side slope one word, links into an integrated entity with reinforcing bar each other; Empty reinforced gabion is put neatly and after integrally welded, the stone that diameter is not more than 70cm is inserted in the gabion, seal a reinforced gabion 3 with pricking silk with loader;
C. make of indented bars and connect anchor pole 5, with reinforced gabion 3 and two sides massif anchor together, treat that water flows through the dam after, finished the pre-sedimentation of water.
Reinforced gabion 3 is built by laying bricks or stones along the enrockment dam body and highly is no more than upstream dam facing reclamation level.
The reinforced gabion 3 length * wide 300 * 200cm that are not less than.
Claims (3)
1. overflow pre-settling construction method for concrete face rock-fill dam is characterized in that:
A. empty reinforced gabion is put neatly and after integrally welded, is loaded stone in gabion;
B. reinforced gabion is piled up along enrockment dam body downstream side slope one word, links into an integrated entity with reinforcing bar each other;
C. do anchor pole with indented bars, with reinforced gabion and two sides massif anchor together, treat that water flows through the dam after, finished the pre-sedimentation of water.
2. overflow pre-settling construction method for concrete face rock-fill dam according to claim 1 is characterized in that: reinforced gabion is built by laying bricks or stones along the enrockment dam body and highly is no more than upstream dam facing reclamation level.
3. overflow pre-settling construction method for concrete face rock-fill dam according to claim 1 and 2 is characterized in that: the reinforced gabion length * wide 300 * 200cm that is not less than.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102723038A CN101691744B (en) | 2009-09-30 | 2009-09-30 | Overflow pre-settling construction method for concrete face rock-fill dam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102723038A CN101691744B (en) | 2009-09-30 | 2009-09-30 | Overflow pre-settling construction method for concrete face rock-fill dam |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101691744A true CN101691744A (en) | 2010-04-07 |
| CN101691744B CN101691744B (en) | 2012-02-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009102723038A Expired - Fee Related CN101691744B (en) | 2009-09-30 | 2009-09-30 | Overflow pre-settling construction method for concrete face rock-fill dam |
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| Country | Link |
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| CN (1) | CN101691744B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101982617A (en) * | 2010-10-22 | 2011-03-02 | 中国水电顾问集团华东勘测设计研究院 | Debris retaining structure for debris fields and construction method thereof |
| CN104099896A (en) * | 2014-07-17 | 2014-10-15 | 黄河勘测规划设计有限公司 | Permeable impact-resistant distribution dam suitable for confluence of natural main river channel and natural branch river channel |
| CN113430962A (en) * | 2021-06-29 | 2021-09-24 | 四川大学 | Self-bursting type water passing bridge culvert suitable for area where mountain torrents are easy to occur |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1297713C (en) * | 2004-07-15 | 2007-01-31 | 国家电力公司华东勘测设计研究院 | Back ward water draining system of face plate rock-fill dam dam body and its construction method |
| CN101285305B (en) * | 2008-06-04 | 2010-08-18 | 中国水电顾问集团华东勘测设计研究院 | Folded line type concrete panel rock-fill dam and construction method thereof |
| CN101429759A (en) * | 2008-12-12 | 2009-05-13 | 中国葛洲坝集团股份有限公司 | Inverse drainage processing method in high concrete panel rock-fill dam construction period |
| CN101476309A (en) * | 2009-01-15 | 2009-07-08 | 中国葛洲坝集团股份有限公司 | Dam body prepressing inverted filling construction method for ultra-high concrete panel rock-fill dam |
-
2009
- 2009-09-30 CN CN2009102723038A patent/CN101691744B/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101982617A (en) * | 2010-10-22 | 2011-03-02 | 中国水电顾问集团华东勘测设计研究院 | Debris retaining structure for debris fields and construction method thereof |
| CN101982617B (en) * | 2010-10-22 | 2012-11-14 | 中国水电顾问集团华东勘测设计研究院 | Debris retaining structure for debris fields and construction method thereof |
| CN104099896A (en) * | 2014-07-17 | 2014-10-15 | 黄河勘测规划设计有限公司 | Permeable impact-resistant distribution dam suitable for confluence of natural main river channel and natural branch river channel |
| CN113430962A (en) * | 2021-06-29 | 2021-09-24 | 四川大学 | Self-bursting type water passing bridge culvert suitable for area where mountain torrents are easy to occur |
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| Publication number | Publication date |
|---|---|
| CN101691744B (en) | 2012-02-01 |
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