CN103696485A - Nuclear island drainage device - Google Patents
Nuclear island drainage device Download PDFInfo
- Publication number
- CN103696485A CN103696485A CN201310613399.6A CN201310613399A CN103696485A CN 103696485 A CN103696485 A CN 103696485A CN 201310613399 A CN201310613399 A CN 201310613399A CN 103696485 A CN103696485 A CN 103696485A
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- CN
- China
- Prior art keywords
- nuclear island
- perforated pipe
- loaded filter
- dewatering installation
- nuclear
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000009434 installation Methods 0.000 claims description 35
- 239000004576 sand Substances 0.000 claims description 7
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 239000004575 stone Substances 0.000 claims description 4
- 229910001141 Ductile iron Inorganic materials 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 28
- 238000010276 construction Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract description 2
- 239000003673 groundwater Substances 0.000 abstract 1
- 238000009412 basement excavation Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000003628 erosive effect Effects 0.000 description 3
- 230000008595 infiltration Effects 0.000 description 3
- 238000001764 infiltration Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000007654 immersion Methods 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 239000002352 surface water Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 230000009545 invasion Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000005871 repellent Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000004078 waterproofing Methods 0.000 description 1
Images
Landscapes
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The invention discloses a nuclear island drainage device and belongs to the field of drainage facility. The drainage device comprises a drainage perforated pipe (6) arranged at the bottom surface of an outside foundation of a nuclear island construction, wherein the pipe wall of the drainage perforated pipe (6) is provided with a plurality of water inlet holes (7); the periphery of the drainage perforated pipe (6) is provided with an inverted filter. According to the drainage device, sequential water inlets (7) are distributed in the drainage perforated pipe (6) and meanwhile the diversion effect of the inverted filter is utilized, so that infiltrated water at the periphery of a nuclear island can be collected in an organized way and is discharged in an organized way by virtue of the drainage perforated pipe (6), the nuclear island in a nuclear power plant is prevented from being eroded by groundwater, and the safety of the nuclear island is improved.
Description
Technical field
The present invention relates to surface water and fall drainage field, be specifically related to a kind of nuclear island dewatering installation.
Background technology
Nuclear island is the most crucial safe structure of nuclear power plant, and the protection safety of nuclear island is the lifeline of nuclear safety.Current nuclear power plant's nuclear island arrangement form all adopts semi-underground and half ground layout, wherein under ground portion nuclear island factory building Shi factory level ground absolute altitude, by excavation after-pouring concrete, form, the degree of depth of excavation is following more than 10～20 meter of factory's level ground absolute altitude, after nuclear island factory building has been constructed, backfill is carried out by backfill in structure periphery.Backfill top terrace lays rubble.Under nominal situation, the crevice water of the rock mass 2 of nuclear island 1 periphery can flow to nuclear island structure exterior bottom by excavation face, ground rainfall 4 simultaneously also can be by backfill 3 seepage flow to nuclear island bottom, and the water body 5 of these seepage flow can make nuclear island structure concrete part be soaked by water body, as shown in Figure 1.Current waterproof measure mainly contains waterproof concrete, and waterproof roll and water-repellent paint etc., in case the erosion of 5 pairs of nuclear islands of water-stop body, 1 structure concrete and reinforcing bar stops water body 5 to enter in nuclear island 1 structure.But in view of waterproofing materials has certain service life, and after construction completes, cannot check, keep in repair and change, consider 40 years to the 60 years even longer cycles of operation of nuclear power plant, immersion and the erosion of long-time water body, can make among the threat in water body invasion always of nuclear island 1 concrete and reinforcing bar.Around nuclear island 1, water body 5 also can make structure bear the impact of water pressure simultaneously, and water pressure is mainly lateral pressure and buoyancy, and the existence of water pressure is unfavorable for the seismic design of structure.Therefore, by passive waterproof measure, protect nuclear island, this is inadequate for nuclear safety requires the highest structure.
Summary of the invention
For the defect existing in prior art, the object of the present invention is to provide a kind of nuclear island dewatering installation, collect and get rid of the lower infiltration body of nuclear island structure periphery, improve nuclear island safety.
For achieving the above object, the technical solution used in the present invention is as follows:
A nuclear island dewatering installation, described dewatering installation comprises the draining perforated pipe that is arranged on bottom surface, base outside nuclear island structure, draining perforated pipe tube wall is provided with some inlet openings, the outer loaded filter that is arranged with of draining perforated pipe.
Further, a kind of nuclear island dewatering installation as above, described loaded filter comprises second layer loaded filter and is arranged on the first floor loaded filter of second layer loaded filter periphery.
Further, a kind of nuclear island dewatering installation as above, described first floor loaded filter and second layer loaded filter are comprised of different graded sand and stones; First floor loaded filter is medium sand, and size grading is 1～5mm; Second layer loaded filter is gravel, and size grading is 4～15mm.
Further, a kind of nuclear island dewatering installation as above, the thickness of first floor loaded filter is 150mm, the thickness of second layer loaded filter is 150mm.
Further, a kind of nuclear island dewatering installation as above, what inlet opening was orderly is arranged on draining perforated pipe, and the inlet opening of draining perforated pipe both sides is symmetrical.
Further, a kind of nuclear island dewatering installation as above, described inlet opening is arranged on the section horizon of draining perforated pipe, and with on the upper and lower position that becomes α angle of section horizon; The scope of α is 25 degree～35 degree.
Further, a kind of nuclear island dewatering installation as above, described draining perforated pipe is ductile iron pipe.
Further, a kind of nuclear island dewatering installation as above, the diameter of described draining perforated pipe is 200mm.
Further again, a kind of nuclear island dewatering installation as above, described inlet opening diameter is 10mm.
Further, a kind of nuclear island dewatering installation as above, the horizontal range between inlet opening is 50mm.
Beneficial effect of the present invention is: dewatering installation of the present invention, existence due to loaded filter and draining perforated pipe, the water body oozing under nuclear island periphery filters by loaded filter, and enter in draining perforated pipe through row inlet opening, because gutter has certain slope, water body can be drained in time, make down the water body oozing can not stockpile the outside at nuclear island structure, keep nuclear island outside without the water body retaining, guaranteed that nuclear island is not soaked by water body, nuclear island has obtained safe protection.
Accompanying drawing explanation
Fig. 1 is existing nuclear island structure and periphery ground generalized section;
Fig. 2 is a kind of nuclear island dewatering installation of the present invention and nuclear island position relationship schematic diagram;
Fig. 3 is the structural representation of a kind of nuclear island dewatering installation of the present invention;
Fig. 4 is the generalized section of the draining perforated pipe of a kind of nuclear island dewatering installation of the present invention;
Fig. 5 is the sectional schematic diagram of the draining perforated pipe of a kind of nuclear island dewatering installation of the present invention;
Fig. 6 is the gravel size graduation curve intention of first floor loaded filter and second layer loaded filter in embodiment.
The specific embodiment
Below in conjunction with Figure of description and the specific embodiment, the present invention is described in further detail.
Fig. 3 shows the structural representation of a kind of nuclear island dewatering installation of the present invention, Fig. 2 shows this nuclear island dewatering installation and nuclear island position relationship schematic diagram, as can be seen from Figure, nuclear island dewatering installation of the present invention is positioned at nuclear island structure outside, the foundation ditch bottom of excavation, this dewatering installation mainly comprises draining perforated pipe 6 and loaded filter, draining perforated pipe 6 is arranged on bottom surface, base outside nuclear island structure, draining perforated pipe 6 tube walls are provided with some inlet openings 7, and loaded filter is arranged on the periphery of draining perforated pipe 6.
Consider best anti-filter effect, loaded filter of the present invention adopts double-deck loaded filter, comprise second layer loaded filter 8 and be arranged on the first floor loaded filter 9 outside second layer loaded filter 8, the loaded filter of every layer is comprised of different graded sand and stones, the graded sand and stone of present embodiment forms as shown in Figure 6, and first floor loaded filter 9 is medium sand, and size grading is 1～5mm, second layer loaded filter 8 is gravel, and size grading is 4～15mm.Fig. 3 shows the thickness of loaded filter in present embodiment, and the thickness h 1 of first floor loaded filter 9 is 150mm, and the thickness h 2 of second layer loaded filter 8 is 150mm.
In present embodiment, draining perforated pipe 6 is that diameter is the ductile iron pipe of 200mm, Fig. 4 and Fig. 5 show respectively generalized section and the sectional schematic diagram of draining perforated pipe 6, what inlet opening 7 was orderly is distributed on draining perforated pipe 6, the inlet opening 7 of draining perforated pipe 6 both sides is symmetrical, at draining perforated pipe, 6(is as the criterion with section) central horizontal upper and lower one-tenth α angle position and Shang Bu hole, horizontal position, be that upper and lower inlet opening becomes α degree angle with horizon, the scope of α generally should be got 25 degree～35 degree, in present embodiment, α is 30 degree, as shown in Figure 5.In Fig. 4, also show the horizontal range between inlet opening in present embodiment, the horizontal range L between inlet opening 7 is 50mm, and inlet opening 7 diameters are 10mm.
The dewatering installation of the present invention roughly course of work is as follows: when the water body in ground rainfall 4, pit backfill soil 3 and the crevice water in rock mass 2 are seeped into nuclear island 1 foundation ditch bottom under under Action of Gravity Field, lower infiltration body 5 can enter by first floor loaded filter 9 and second layer loaded filter 8 periphery of draining perforated pipe 6, through the inlet opening 7 on water perforated pipe 6, enter draining perforated pipe 6, because draining perforated pipe 6 has certain gradient, water water in pipe flows away, to reduce nuclear island 1 water body around, guarantee that nuclear island 1 is not subject to immersion and the erosion of lower infiltration body.
At nuclear island structure, built, after the peripheral backfill of foundation ditch completes, the peripheral excavation face seepage flow of institute's water content and foundation ditch water body in surface water body, backfill, all can be under Action of Gravity Field, under to be seeped into foundation ditch bottom, nuclear island structure peripheral, existence due to loaded filter, under the water body that oozes by loaded filter, filter very soon, and enter in gutter through the perforation of gutter, water body can be drained in time, the water body oozing can not stockpiled in the outside of nuclear island structure, keep nuclear island outside without the water body retaining, nuclear island has obtained safe protection.
Obviously, those skilled in the art can carry out various changes and modification and not depart from the spirit and scope of the present invention the present invention.Like this, if within of the present invention these are revised and modification belongs to the scope of the claims in the present invention and equivalent technology thereof, the present invention is also intended to comprise these changes and modification interior.
Claims (10)
1. a nuclear island dewatering installation, it is characterized in that: described dewatering installation comprises the draining perforated pipe (6) that is arranged on bottom surface, base outside nuclear island structure, draining perforated pipe (6) tube wall is provided with some inlet openings (7), the outer loaded filter that is arranged with of draining perforated pipe (6).
2. a kind of nuclear island dewatering installation as claimed in claim 1, is characterized in that: described loaded filter comprises second layer loaded filter (8) and is arranged on the peripheral first floor loaded filter (9) of second layer loaded filter (8).
3. a kind of nuclear island dewatering installation as claimed in claim 2, is characterized in that: described first floor loaded filter (9) and second layer loaded filter (8) are comprised of different graded sand and stones; First floor loaded filter (9) is medium sand, and size grading is 1～5mm; Second layer loaded filter (8) is gravel, and size grading is 4～15mm.
4. a kind of nuclear island dewatering installation as claimed in claim 2 or claim 3, is characterized in that: the thickness of first floor loaded filter (9) is 150mm, and the thickness of second layer loaded filter (8) is 150mm.
5. a kind of nuclear island dewatering installation as described in one of claims 1 to 3, is characterized in that: what inlet opening (7) were orderly is arranged on draining perforated pipe (6) above, and the inlet opening (7) of draining perforated pipe (6) both sides is symmetrical.
6. a kind of nuclear island dewatering installation as claimed in claim 5, is characterized in that: described inlet opening (7) are arranged on the section horizon of draining perforated pipe (6), and with on the upper and lower position that becomes α angle of section horizon; The scope of α is 25 degree～35 degree.
7. a kind of nuclear island dewatering installation as claimed in claim 6, is characterized in that: described draining perforated pipe (6) is ductile iron pipe.
8. a kind of nuclear island dewatering installation as claimed in claim 7, is characterized in that: the diameter of described draining perforated pipe (6) is 200mm.
9. a kind of nuclear island dewatering installation as claimed in claim 8, is characterized in that: described inlet opening (7) diameter is 10mm.
10. a kind of nuclear island dewatering installation as claimed in claim 9, is characterized in that: the horizontal range between described inlet opening (7) is 50mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310613399.6A CN103696485B (en) | 2013-11-27 | 2013-11-27 | A kind of nuclear island drainage device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310613399.6A CN103696485B (en) | 2013-11-27 | 2013-11-27 | A kind of nuclear island drainage device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103696485A true CN103696485A (en) | 2014-04-02 |
| CN103696485B CN103696485B (en) | 2015-09-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310613399.6A Active CN103696485B (en) | 2013-11-27 | 2013-11-27 | A kind of nuclear island drainage device |
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| Country | Link |
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| CN (1) | CN103696485B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104060632A (en) * | 2014-06-13 | 2014-09-24 | 长江勘测规划设计研究有限责任公司 | Underground migration protective system for radioactive waste water of underground nuclear power station |
| WO2015188697A1 (en) * | 2014-06-13 | 2015-12-17 | 长江勘测规划设计研究有限责任公司 | Radioactive waste water underground migration protection system of underground nuclear power plant |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2307043Y (en) * | 1996-06-09 | 1999-02-10 | 唐善祥 | Percolation drain pipe |
| CN2380369Y (en) * | 1999-07-13 | 2000-05-31 | 聂再安 | Steel-fiber cement filtering water-drainage pipe |
| JP2006077536A (en) * | 2004-09-13 | 2006-03-23 | Totaku Industries Inc | Water permeable pipe for underground embedment |
| CN201144457Y (en) * | 2007-11-21 | 2008-11-05 | 王荣彦 | Novel drainpipe |
| CN202730935U (en) * | 2012-09-12 | 2013-02-13 | 长沙有色冶金设计研究院有限公司 | Collecting-and-seeping-type water drainage facility |
-
2013
- 2013-11-27 CN CN201310613399.6A patent/CN103696485B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2307043Y (en) * | 1996-06-09 | 1999-02-10 | 唐善祥 | Percolation drain pipe |
| CN2380369Y (en) * | 1999-07-13 | 2000-05-31 | 聂再安 | Steel-fiber cement filtering water-drainage pipe |
| JP2006077536A (en) * | 2004-09-13 | 2006-03-23 | Totaku Industries Inc | Water permeable pipe for underground embedment |
| CN201144457Y (en) * | 2007-11-21 | 2008-11-05 | 王荣彦 | Novel drainpipe |
| CN202730935U (en) * | 2012-09-12 | 2013-02-13 | 长沙有色冶金设计研究院有限公司 | Collecting-and-seeping-type water drainage facility |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104060632A (en) * | 2014-06-13 | 2014-09-24 | 长江勘测规划设计研究有限责任公司 | Underground migration protective system for radioactive waste water of underground nuclear power station |
| CN104060632B (en) * | 2014-06-13 | 2015-06-17 | 长江勘测规划设计研究有限责任公司 | Underground migration protective system for radioactive waste water of underground nuclear power station |
| WO2015188697A1 (en) * | 2014-06-13 | 2015-12-17 | 长江勘测规划设计研究有限责任公司 | Radioactive waste water underground migration protection system of underground nuclear power plant |
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| CN103696485B (en) | 2015-09-23 |
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