CN105220654A - A kind of ruggedized construction of earth and rockfill dam and construction method thereof - Google Patents
A kind of ruggedized construction of earth and rockfill dam and construction method thereof Download PDFInfo
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- CN105220654A CN105220654A CN201510658569.1A CN201510658569A CN105220654A CN 105220654 A CN105220654 A CN 105220654A CN 201510658569 A CN201510658569 A CN 201510658569A CN 105220654 A CN105220654 A CN 105220654A
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Abstract
The invention discloses a kind of ruggedized construction and construction method thereof of earth and rockfill dam, this structure comprises dam body, dam body both sides are respectively upstream dam slope and downstream dam slope, dam body top is dam crest, downstream dam slope is provided with packway, described dam crest has some equi-spaced apart and the impervious grouting hole vertically arranged, described packway place is provided with the antislide pile of some vertical layouts, and dam body bottom face is all stretched out in impervious grouting hole and antislide pile bottom.The advantages such as it is little that the present invention has risk, simple, convenient and practical, can be applicable in reinforcement of earth rockfill dam field.
Description
Technical field
The present invention relates to Hydraulic and Hydro-Power Engineering technical field, what be specifically related to earth and rockfill dam removes dangerous harnessing project field, particularly relates to a kind of ruggedized construction and construction method thereof of earth and rockfill dam.
Background technology
At present, the dangerously weak reseroirs sum existed in China reaches more than 30,000, and wherein earth and rockfill dam structure accounts for 95%, and majority was built 50 ~ seventies of 20th century.Be subject to the restriction of objective condition at that time, a lot of reservoir carries out Design approval, supervision of works and examination according to capital construction procedure when building, and there is many problems at secure context.And the problem that final-period management is not good at is relatively more serious, the phenomenon of osmosis of a lot of reservoir is comparatively general, and concentrative seepage occurs for some, occurs piping, and stream soil waits seepage flow breakoff phenomenon, and collapsing appears in a lot of dam slope, the problem of dam slope instabilty.
The reinforcement means of existing earth and rockfill dam mainly contains: the reinforcement means such as seepage failure, crack, landslide, earthquake disaster and liquefaction, for the reinforcing on dam body landslide, usually active slip section loss of weight and the solid pin of sliding mass leading edge jackstone is adopted in prior art, increasing the weight of the method for pressure slope, there is the problems such as long construction period, manpower and materials consumption is many, engineering cost is high in the reinforcement means of these earth and rockfill dams.
Summary of the invention
The present invention aims to provide a kind of ruggedized construction and construction method thereof of earth and rockfill dam, to solve long construction period existing for traditional Reinforcement of Earth Rockfill Dam, the problem such as manpower and materials consumption is many, engineering cost is high.
The present invention is achieved by following technical solution:
A kind of ruggedized construction of earth and rockfill dam, comprise dam body, dam body both sides are respectively upstream dam slope and downstream dam slope, dam body top is dam crest, downstream dam slope is provided with packway, described dam crest has some equi-spaced apart and the impervious grouting hole vertically arranged, described packway place is provided with the antislide pile of some vertical layouts, and dam body bottom face is all stretched out in impervious grouting hole and antislide pile bottom.
Spacing between described impervious grouting hole is 1-1.5m.
The construction method of the ruggedized construction of above-mentioned earth and rockfill dam comprises the following steps:
A () is surveyed dam body, determine the position of antislide pile and the size of antislide pile;
B () utilizes packway on the dam slope of downstream as operation platform, adopt machinery to hole straight down, form antislide pile boring used;
C () places reinforcing bar in boring, form cage of reinforcement;
D () is to concreting in boring;
E () gets out some impervious grouting holes at dam crest along the axis of dam successively interval;
F (), to penetration concrete in impervious grouting hole, be in the milk rear sealing of hole.
Filling process in described step (f) is high pressure jet grouting or fracture grouting.
The invention has the beneficial effects as follows:
Compared with prior art, the ruggedized construction of earth and rockfill dam provided by the invention and construction method thereof, arrange antislide pile by arranging impervious wall at the axis of dam in dam body downstream, solve dam body and cut slope loss of weight, increase the problem that the difficulty of construction of dam body build is large, do not need to find new dam embankment material, reduce waste, it is little that it has risk, simple, the advantage such as convenient and practical, can be applicable in reinforcement of earth rockfill dam field, has significant economic benefit and social benefit.
Accompanying drawing explanation
Fig. 1 is structural layout plan of the present invention;
In figure: 1-dam body, 2-upstream dam slope, 3-dam crest, 4-packway, 5-downstream dam slope, 6-impervious grouting hole, 7-antislide pile.
Detailed description of the invention
Below in conjunction with drawings and Examples, technical scheme of the present invention is described further, but described in required protection domain is not limited to;
As shown in Figure 1, the ruggedized construction of earth and rockfill dam provided by the invention, comprise dam body 1, dam body 1 both sides are respectively upstream dam slope 2 and downstream dam slope 5, dam body 1 top is dam crest 3, and downstream dam slope 5 is provided with packway 4, described dam crest 3 has some equi-spaced apart and the impervious grouting hole 6 vertically arranged, described packway 4 place is provided with the antislide pile 7 of some vertical layouts, and dam body 1 bottom face is all stretched out in impervious grouting hole 6 and antislide pile 7 bottom.Spacing between described impervious grouting hole 6 is 1-1.5m.By arranging impervious wall at dam body 1 axis of dam, antislide pile 7 being set in dam body 1 downstream, effectively realizing the reinforcing to dam body 1.
Construction concrete steps are:
First dam body 1 is surveyed, determine the position of antislide pile 7 and the size of antislide pile 7; Utilize packway 4 on downstream dam slope 5 as operation platform, adopt machinery to hole straight down, form antislide pile 7 boring used; In boring, place reinforcing bar, form cage of reinforcement; Concreting in boring; Some impervious grouting holes 6 are got out along the axis of dam successively interval at dam crest 3; Penetration concrete in impervious grouting hole 6, filling process is high pressure jet grouting or fracture grouting, and be in the milk rear sealing of hole.
Above are only a preferred embodiment of the present invention, the protection domain be not intended to limit the present invention, all distortion, the modification made on technical scheme basis of the present invention or equivalent to replace, all should protection scope of the present invention be fallen into.
Claims (4)
1. the ruggedized construction of an earth and rockfill dam, comprise dam body (1), dam body (1) both sides are respectively upstream dam slope (2) and downstream dam slope (5), dam body (1) top is dam crest (3), downstream dam slope (5) is provided with packway (4), it is characterized in that: described dam crest (3) has some equi-spaced apart and the impervious grouting hole (6) vertically arranged, described packway (4) place is provided with the antislide pile (7) of some vertical layouts, and dam body (1) bottom face is all stretched out in impervious grouting hole (6) and antislide pile (7) bottom.
2. the ruggedized construction of earth and rockfill dam according to claim 1, is characterized in that: the spacing between described impervious grouting hole (6) is 1-1.5m.
3. a construction method for the ruggedized construction of the earth and rockfill dam as described in any one of claim 1-2, is characterized in that: the method comprises the following steps:
A () is surveyed dam body (1), determine the position of antislide pile (7) and the size of antislide pile (7);
B () utilizes packway (4) on downstream dam slope (5) as operation platform, adopt machinery to hole straight down, form antislide pile (7) boring used;
C () places reinforcing bar in boring, form cage of reinforcement;
D () is to concreting in boring;
E () gets out some impervious grouting holes (6) at dam crest (3) along the axis of dam successively interval;
F (), to impervious grouting hole (6) interior penetration concrete, be in the milk rear sealing of hole.
4. the construction method of the ruggedized construction of earth and rockfill dam according to claim 3, is characterized in that: the filling process in described step (f) is high pressure jet grouting or fracture grouting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510658569.1A CN105220654B (en) | 2015-10-12 | 2015-10-12 | The ruggedized construction and its construction method of a kind of earth and rockfill dam |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510658569.1A CN105220654B (en) | 2015-10-12 | 2015-10-12 | The ruggedized construction and its construction method of a kind of earth and rockfill dam |
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| CN105220654A true CN105220654A (en) | 2016-01-06 |
| CN105220654B CN105220654B (en) | 2017-09-26 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105926545A (en) * | 2016-06-08 | 2016-09-07 | 中铁西北科学研究院有限公司勘察设计分公司 | Permeable comb dam and implementation method |
| CN107268540A (en) * | 2017-07-04 | 2017-10-20 | 昆明理工大学 | A kind of use plastic concrete core-wall reinforces the construction method of earth and rockfill dam |
| CN108625374A (en) * | 2018-05-04 | 2018-10-09 | 山东大学 | A kind of homogeneous earth dam and wear dam culvert pipe contact scour antiseepage grouting construction method and detection of grouting effects method |
| CN109944215A (en) * | 2019-04-09 | 2019-06-28 | 长江勘测规划设计研究有限责任公司 | A kind of Reinforcement of Earth Rockfill Dam engineering disappears unrestrained protective slope structure |
| CN111236169A (en) * | 2020-01-11 | 2020-06-05 | 河南华北水利水电勘察设计有限公司 | Earth and rockfill dam reinforced anti-seismic structure and construction method thereof |
| CN112942258A (en) * | 2021-02-03 | 2021-06-11 | 宁夏晨禹水利水电建筑工程有限责任公司 | Danger-removing, reinforcing and seepage-proofing method for barrier lake rock dam |
| CN113089578A (en) * | 2021-04-12 | 2021-07-09 | 祥昇建工有限公司 | Construction device and construction method for combined thin anti-seepage wall for danger removal and reinforcement of earth and rockfill dam |
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| JPH09158158A (en) * | 1995-12-05 | 1997-06-17 | Fujita Corp | Filling type concrete dam and construction method thereof |
| CN202047397U (en) * | 2011-04-19 | 2011-11-23 | 青岛银河环保股份有限公司 | Seepage-proofing system for plain artificial dam |
| CN204023501U (en) * | 2014-06-27 | 2014-12-17 | 中国电建集团贵阳勘测设计研究院有限公司 | A kind of reinforcement Anti-seeping technology structure for earth and rockfill dam |
| CN205062762U (en) * | 2015-10-12 | 2016-03-02 | 中国电建集团贵阳勘测设计研究院有限公司 | Reinforced structure of embankment dam |
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2015
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH09158158A (en) * | 1995-12-05 | 1997-06-17 | Fujita Corp | Filling type concrete dam and construction method thereof |
| CN202047397U (en) * | 2011-04-19 | 2011-11-23 | 青岛银河环保股份有限公司 | Seepage-proofing system for plain artificial dam |
| CN204023501U (en) * | 2014-06-27 | 2014-12-17 | 中国电建集团贵阳勘测设计研究院有限公司 | A kind of reinforcement Anti-seeping technology structure for earth and rockfill dam |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105926545A (en) * | 2016-06-08 | 2016-09-07 | 中铁西北科学研究院有限公司勘察设计分公司 | Permeable comb dam and implementation method |
| CN107268540A (en) * | 2017-07-04 | 2017-10-20 | 昆明理工大学 | A kind of use plastic concrete core-wall reinforces the construction method of earth and rockfill dam |
| CN108625374A (en) * | 2018-05-04 | 2018-10-09 | 山东大学 | A kind of homogeneous earth dam and wear dam culvert pipe contact scour antiseepage grouting construction method and detection of grouting effects method |
| CN109944215A (en) * | 2019-04-09 | 2019-06-28 | 长江勘测规划设计研究有限责任公司 | A kind of Reinforcement of Earth Rockfill Dam engineering disappears unrestrained protective slope structure |
| CN109944215B (en) * | 2019-04-09 | 2024-01-05 | 长江勘测规划设计研究有限责任公司 | Wave-eliminating slope protection structure for earth-rock dam reinforcement engineering |
| CN111236169A (en) * | 2020-01-11 | 2020-06-05 | 河南华北水利水电勘察设计有限公司 | Earth and rockfill dam reinforced anti-seismic structure and construction method thereof |
| CN112942258A (en) * | 2021-02-03 | 2021-06-11 | 宁夏晨禹水利水电建筑工程有限责任公司 | Danger-removing, reinforcing and seepage-proofing method for barrier lake rock dam |
| CN113089578A (en) * | 2021-04-12 | 2021-07-09 | 祥昇建工有限公司 | Construction device and construction method for combined thin anti-seepage wall for danger removal and reinforcement of earth and rockfill dam |
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| Publication number | Publication date |
|---|---|
| CN105220654B (en) | 2017-09-26 |
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