CN206448286U - It is a kind of to be used to reduce the radial system of grey field dam seepage line - Google Patents
It is a kind of to be used to reduce the radial system of grey field dam seepage line Download PDFInfo
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- CN206448286U CN206448286U CN201621373214.4U CN201621373214U CN206448286U CN 206448286 U CN206448286 U CN 206448286U CN 201621373214 U CN201621373214 U CN 201621373214U CN 206448286 U CN206448286 U CN 206448286U
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- radial
- borehole wall
- radiant tube
- drainpipe
- bottom plate
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- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
Abstract
It is a kind of to be used to reduce the radial system of grey field dam seepage line, including radial, drainpipe, it is characterised in that：Radial is made up of the borehole wall, cutting shoe, bottom plate, radiant tube, the borehole wall is that armored concrete in-situ precast forms pit shaft with cutting shoe, wellbore bottom concrete placed under water is used as sealed base, reinforced concrete floor has been poured above sealed base, several radiant tubes are communicated with the borehole wall, radiant tube gradient slope aspect radial, the borehole wall is communicated with drainpipe close to bottom plate, and drainpipe slope aspect ash is swum off field.The utility model forms complete impervious body, blocks leak source, construction costs is high, and is limited by stratum water penetration, and radial row, which is oozed, can substantially reduce construction costs, and not limited by stratum, with higher economic technology benefit.Compared with buried drainage pipe scheme, the utility model row oozes scheme without heavy excavation, and construction technology is simple, and radiant tube can carry out washing pipe once blocking failure, and recovery uses function.
Description
Technical field
The utility model belongs to electric power project engineering field, is specifically related to a kind of for reducing grey field dam seepage line
Radial system.
Background technology
In the running of thermal power generation mountain valley ash field, it is too high to there is dam seepage line in many engineerings, dam body, dam abutment and dam
Location infiltration, leak or formed marsh the problem of, make grey field exist potential safety hazard, especially flood larger area Dry-ash Yard in Valley and
The grey field of water that some current old power plant are currently running, has the danger of dam break in rainy season, is normally run to power plant and bring certain
Harmful effect.Mainly there are high pressure jet grouting anti-seepage scheme and buried drainage pipe in the country for embankment seepage treatment measures at present
Scheme, high pressure jet grouting anti-seepage scheme regulation effect is preferable, but engineering cost is larger；Buried drainage pipe scheme operation a period of time
Afterwards, lime-ash easily blocks pipeline, water seepage drainage effect reduction.
Utility model content
To solve, the prior art is defective, and the utility model provides a kind of for reducing the radiation of grey field dam seepage line
Well system, collects infiltration using radial, and infiltration is discharged into downstream by drainpipe, the saturation of dam body is reduced, dam body is administered
Leakage problems, make the grey field safe operation in mountain valley, and reduce construction investment.
To achieve the above object, the utility model provides a kind of for reducing the radial system of grey field dam seepage line,
Including radial, drainpipe, it is characterised in that：Radial is made up of the borehole wall, cutting shoe, bottom plate, radiant tube, and the borehole wall is steel with cutting shoe
Reinforced concrete in-situ precast forms pit shaft, and wellbore bottom concrete placed under water is poured above sealed base as sealed base
Have and several radiant tubes are communicated with reinforced concrete floor, the borehole wall, radiant tube gradient slope aspect radial, the borehole wall connects close to bottom plate
Drainpipe is connected with, drainpipe slope aspect ash is swum off field.
Further, a kind of radiant tube of radial system for reducing grey field dam seepage line uses PVC-U
Plastic tube, outsourcing geotextiles, geotextiles play reverse filter effect.
Further, a kind of pit shaft length for being used to reduce the radial system of grey field dam seepage line is dropped by ash disposal area dam body
Low saturation requires to determine.
The utility model beneficial effect：1st, compared with traditional high pressure jet grouting anti-seepage scheme, because high pressure jet grouting method is on dam
Seepage proof curtain is beaten in forward position with high pressure jet grouting method, stretches into underground impermeable stratum, forms complete impervious body, blocks leak source,
Construction costs is high, and is limited by stratum water penetration, and radial row, which is oozed, can substantially reduce construction costs, and not limited by stratum, have
There is higher economic technology benefit.2nd, compared with buried drainage pipe scheme, the utility model row oozes scheme without heavy excavation, construction
Technique is simple, and radiant tube can carry out washing pipe once blocking failure, and recovery uses function.
Brief description of the drawings
Fig. 1 is radial cross-sectional view；
Fig. 2 is radiant tube inlet opening sectional drawing；
Fig. 3 is that radial and radiant tube are longitudinally arranged sectional drawing；
Fig. 4 is single layer radiation pipe floor plan.
Embodiment
1 in figure, radiation well shaft, 2, red dog absolute altitude, 3, the borehole wall, 4, bottom plate, 5, cutting shoe, 6, bottom concrete, 7, radiation
Pipe, 8, drainpipe, 9, UPVC pipes, 10, geotextiles, 11, perforate.
Below in conjunction with the accompanying drawings, technical solutions of the utility model are described in further detail.
Reference picture 1, first prefabricated construction is radiated in the cutting shoe 5 and the borehole wall 3 of well shaft 1, radiation well shaft 1 on intended site
Footpath is 3.0m, and cutting shoe and the borehole wall are integrated poured reinforced concrete structure, and cutting shoe reduces the work of resistance when playing well-sinking
With, radial 1 is the circular reinforced concrete structure of in-situ precast, prefabricated rear non-drainage subsidence construction, is sunk to after designed elevation,
Well top mark height is higher by red dog absolute altitude 500mm, and drainage pipe upper strata absolute altitude is located at below the saturation of design requirement, underwater casting back cover
Concrete 6, the thickness of bottom concrete 6 is 1.2m, then drains underground water in well, and cast-in-situ steel reinforced concrete bottom plate 4, reinforcing bar is mixed
Solidifying soil base plate thickness 0.6m, reaches after intensity and to lift up into the construction equipment rig of radiant tube in well.
UPVC pipes 9 are pressed figure drilling 11, aperture 15mm, weekly hole count 6, hole by reference picture 2, pre-production radiant tube
Array pitch 70mm, every meter of total hole count 130, and geotextiles 10 of double-baging in outside, the radiant tube after making are transported in well, first according to
Vertical position arranges the radiant tube 7 of bottom in Fig. 1, with rig in stratum internal drilling, installs radiant tube 7, radiant tube is using hard poly-
Vinyl chloride plastic (UPVC) pipe D75 × 5, outsourcing 400g/m2Geotextiles, geotextiles play reverse filter effect.Radiant tube is radial
Water inlet chimney filter, radiant tube inlet opening is using circular, aperture 15mm, hole count 6, hole array pitch 70mm, every meter of total hole count 130 weekly
It is individual, porosity 13%.The radiant tube arrangement scope band shape arrangement that is grey field inside parallel in the range of 30 meters of the axis of dam, from thin
Long radiant tube, to reduce radial quantity, radiation length of tube 30m~50m.Radiant tube points to grey field internal direction, radiant tube
Gradient slope aspect radial.Radiant tube, which should interlock, between two radials is connected, piece of not leaving a blank.The radiation angle one of radiant tube horizontal layout
As be separated by 250.Two layers of radiant tube is staggeredly arranged up and down, and to reduce water intaking interference, radiant tube is with 2% gradient slope aspect radial 1.
Reference picture 3, radial 1 sets in a row, well spacing 90m, and each radial, radiant tube 7 and drainpipe 8 are according to upper
Method construction is stated, finally swims to be connected to the drainpipe 8 of all wells on a supervisor off field in ash and discharges, drainpipe selects steel
Pipe, away from radial bottom plate 0.8m, so as to drainpipe construction operation.
Reference picture 4, bottom radiant tube arranges upper strata radiant tube 7 again after arranging, and finally fixes a drainpipe 8, and drainpipe is pre-
Draining depth of water 1.4m is stayed, i.e., apart from bottom drainage pipe 1.4m, drainpipe slope aspect ash is swum off field.Can be long according to dam body during specific implementation
The quantity of degree design radial 1.
Claims (3)
1. a kind of be used to reduce the radial system of grey field dam seepage line, including radial, drainpipe, it is characterised in that：Spoke
Penetrate well to be made up of the borehole wall, cutting shoe, bottom plate, radiant tube, the borehole wall is that armored concrete in-situ precast forms pit shaft, pit shaft bottom with cutting shoe
Portion's concrete placed under water has poured reinforced concrete floor, if being communicated with the borehole wall as sealed base above sealed base
Dry radiant tube, radiant tube gradient slope aspect radial, the borehole wall is communicated with drainpipe close to bottom plate, and drainpipe slope aspect ash is swum off field.
2. it is according to claim 1 a kind of for reducing the radial system of grey field dam seepage line, it is characterised in that：Spoke
Pipe is penetrated using Vybak pipe, outsourcing geotextiles.
3. it is according to claim 1 a kind of for reducing the radial system of grey field dam seepage line, it is characterised in that：Well
Tube length degree reduces saturation requirement by ash disposal area dam body and determined.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621373214.4U CN206448286U (en) | 2016-12-14 | 2016-12-14 | It is a kind of to be used to reduce the radial system of grey field dam seepage line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621373214.4U CN206448286U (en) | 2016-12-14 | 2016-12-14 | It is a kind of to be used to reduce the radial system of grey field dam seepage line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206448286U true CN206448286U (en) | 2017-08-29 |
Family
ID=59673758
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621373214.4U Active CN206448286U (en) | 2016-12-14 | 2016-12-14 | It is a kind of to be used to reduce the radial system of grey field dam seepage line |
Country Status (1)
| Country | Link |
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| CN (1) | CN206448286U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109881658A (en) * | 2019-02-15 | 2019-06-14 | 湖南中天青鼎工程科技有限公司 | A kind of radial construction technology for red mud consolidation draining |
| CN113356887A (en) * | 2021-07-09 | 2021-09-07 | 中国矿业大学 | Single-layer well wall with grouting water-stopping connecting piece and construction method thereof |
| CN113445489A (en) * | 2021-07-08 | 2021-09-28 | 同济大学 | Mucky soil dewatering device and application thereof |
| CN114046016A (en) * | 2021-11-18 | 2022-02-15 | 海玉梅 | Epoxy grindstone terrace application structure |
-
2016
- 2016-12-14 CN CN201621373214.4U patent/CN206448286U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109881658A (en) * | 2019-02-15 | 2019-06-14 | 湖南中天青鼎工程科技有限公司 | A kind of radial construction technology for red mud consolidation draining |
| CN113445489A (en) * | 2021-07-08 | 2021-09-28 | 同济大学 | Mucky soil dewatering device and application thereof |
| CN113356887A (en) * | 2021-07-09 | 2021-09-07 | 中国矿业大学 | Single-layer well wall with grouting water-stopping connecting piece and construction method thereof |
| CN113356887B (en) * | 2021-07-09 | 2023-12-22 | 中国矿业大学 | Single-layer well wall with grouting water-stop connecting piece and construction method thereof |
| CN114046016A (en) * | 2021-11-18 | 2022-02-15 | 海玉梅 | Epoxy grindstone terrace application structure |
| CN114046016B (en) * | 2021-11-18 | 2023-08-22 | 上海伯栎新材料科技有限公司 | Epoxy grindstone terrace application structure |
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