CN109585042B - Anti-seepage karst cave type containment of underground nuclear power station - Google Patents
Anti-seepage karst cave type containment of underground nuclear power station Download PDFInfo
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- CN109585042B CN109585042B CN201811551033.XA CN201811551033A CN109585042B CN 109585042 B CN109585042 B CN 109585042B CN 201811551033 A CN201811551033 A CN 201811551033A CN 109585042 B CN109585042 B CN 109585042B
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- containment
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- nuclear power
- hydrophobic
- impermeable
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- 239000010410 layer Substances 0.000 claims abstract description 82
- 230000002209 hydrophobic effect Effects 0.000 claims abstract description 34
- 239000004567 concrete Substances 0.000 claims abstract description 21
- 239000011150 reinforced concrete Substances 0.000 claims abstract description 14
- 238000005507 spraying Methods 0.000 claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000002354 radioactive wastewater Substances 0.000 claims abstract description 12
- 239000011241 protective layer Substances 0.000 claims abstract description 10
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 9
- 239000010959 steel Substances 0.000 claims abstract description 9
- 230000002285 radioactive effect Effects 0.000 claims description 8
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 230000002265 prevention Effects 0.000 claims description 2
- 230000003014 reinforcing effect Effects 0.000 claims description 2
- 239000003673 groundwater Substances 0.000 abstract description 11
- 239000011435 rock Substances 0.000 abstract description 6
- 230000000149 penetrating effect Effects 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 description 4
- 239000002901 radioactive waste Substances 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
- 239000000941 radioactive substance Substances 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000012857 radioactive material Substances 0.000 description 1
Classifications
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C13/00—Pressure vessels; Containment vessels; Containment in general
- G21C13/10—Means for preventing contamination in the event of leakage, e.g. double wall
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C13/00—Pressure vessels; Containment vessels; Containment in general
- G21C13/02—Details
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C13/00—Pressure vessels; Containment vessels; Containment in general
- G21C13/02—Details
- G21C13/028—Seals, e.g. for pressure vessels or containment vessels
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C13/00—Pressure vessels; Containment vessels; Containment in general
- G21C13/08—Vessels characterised by the material; Selection of materials for pressure vessels
- G21C13/093—Concrete vessels
- G21C13/0933—Concrete vessels made of prestressed concrete
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
- G21F9/00—Treating radioactively contaminated material; Decontamination arrangements therefor
- G21F9/04—Treating liquids
- G21F9/20—Disposal of liquid waste
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Plasma & Fusion (AREA)
- Environmental & Geological Engineering (AREA)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
- Structure Of Emergency Protection For Nuclear Reactors (AREA)
Abstract
The invention relates to an anti-seepage karst cave type containment of an underground nuclear power station. The containment is positioned in an underground rock layer and comprises a concrete spraying anchor layer, an outer layer hydrophobic blind pipe, an outer layer waterproof curtain, an impermeable concrete layer, an inner layer waterproof curtain, an inner layer hydrophobic blind pipe, a reinforced concrete protective layer and a steel lining which are sequentially arranged from outside to inside, wherein the outer layer hydrophobic blind pipe and the outer layer waterproof curtain of the containment isolate the outer layer groundwater of the containment, and prevent the outer layer groundwater from penetrating into the containment; the radioactive wastewater in the containment vessel in serious accidents is shielded through the inner layer hydrophobic blind pipe and the inner layer waterproof curtain of the containment vessel, so that the radioactive wastewater is prevented from exuding out of the containment vessel. The containment vessel and the seepage-proof drainage structure are combined, and the multilayer water delivery and drainage structure is arranged, so that the containment vessel structure of the underground nuclear power station can prevent external groundwater from entering the nuclear island, and can prevent radioactive wastewater in the containment vessel from polluting external groundwater in serious accidents.
Description
Technical Field
The invention relates to a nuclear power technology, in particular to an anti-seepage karst cave type containment of an underground nuclear power station.
Background
The underground nuclear power station is to place nuclear-related plants such as a nuclear island and the like underground, and the potential radioactive substances in serious accidents are limited to be released to the environment by utilizing the protection and containment functions of underground rock bodies, so that the safety of the nuclear power station is improved, and a new thought is provided for the safety development of nuclear power in China.
The containment of a ground nuclear power plant is the last physical barrier to prevent release of radioactive materials to the outside environment in severe accidents. When nuclear plants such as a nuclear island are placed underground, the underground nuclear island is corroded by groundwater, and at the moment, how to prevent infiltration of the groundwater into the nuclear island and prevent the groundwater from being polluted by radioactive wastewater in the nuclear island in serious accidents is a critical problem faced by the design of the containment vessel of the underground nuclear power station.
In the prior art, a layer of seepage-proofing structure is arranged at the periphery of the cavity to separate the cavity from surrounding rocks at the periphery of the cavity, so that the aim of isolating underground water is fulfilled, but the mode separates the underground water from the cavity, and simultaneously, the whole of the underground cavity and surrounding rocks is damaged, so that the stability of the cavity is not facilitated. Such as Chinese patent: the underground nuclear power station radioactive wastewater underground migration protection system (application number: CN 201410264273.7) is characterized in that an impermeable layer is additionally arranged outside the cavity to collect and drain underground water, the impermeable layer is arranged independently of the underground cavity, the integral stability of the underground cavity is not facilitated, and the radioactive waste liquid in the cavity in a serious accident is not treated, so that the subsequent treatment of the accident is not facilitated.
Disclosure of Invention
In order to solve the problems, the invention provides the anti-seepage karst cave type containment of the underground nuclear power station by combining the characteristics of the underground nuclear power station, and the containment can prevent external groundwater from entering a nuclear island and prevent radioactive wastewater in the containment from polluting external groundwater in serious accidents.
The technical scheme adopted by the invention is as follows: an underground nuclear power station prevention of seepage karst cave formula containment, is located in the underground formation, its characterized in that: the concrete spraying anchor layer, the outer layer hydrophobic blind pipe, the outer layer waterproof curtain, the impermeable concrete layer, the inner layer waterproof curtain, the inner layer hydrophobic blind pipe, the reinforced concrete protection layer and the steel lining are sequentially arranged from outside to inside, and the outer layer hydrophobic blind pipe is closely arranged between the outer layer waterproof curtain and the concrete spraying anchor layer and is connected with a non-radioactive drainage system through the outer layer hydrophobic pipe to collect trace water seepage outside the outer layer waterproof curtain; the inner layer hydrophobic blind pipe is tightly arranged between the inner layer waterproof curtain and the reinforced concrete protective layer and is connected with the radioactive drainage system through the inner layer hydrophobic pipe to collect trace radioactive wastewater leaked by the containment in a serious accident.
Preferably, the outer hydrophobic blind pipes are evenly distributed around the containment.
Preferably, the inner layer hydrophobic blind pipes are uniformly arranged around the lower half part and the bottom of the containment.
Preferably, the thickness of the concrete spraying anchor layer is not less than 50cm, and a reinforcing steel bar reinforcing structure is arranged in the concrete spraying anchor layer.
Preferably, the thickness of the impermeable concrete layer is not less than 50cm, and the impermeable grade is not less than P8.
Preferably, the thickness of the reinforced concrete protective layer is not less than 10cm.
Preferably, the bottom of the containment vessel is of an ellipsoidal or spherical structure.
Further, the steel lining is closely attached to the reinforced concrete protective layer so as to maintain the seepage and compression resisting functions of the containment.
The beneficial effects obtained by the invention are as follows: the outer layer of underground water of the containment is isolated through the outer layer of the hydrophobic blind pipe and the outer layer of the waterproof curtain of the containment, so that the outer layer of underground water is prevented from penetrating into the containment; the radioactive wastewater in the containment is shielded in serious accidents through the inner layer hydrophobic blind pipe and the inner layer waterproof curtain of the containment, so that the radioactive wastewater is prevented from seeping out of the containment and polluting the external environment.
The containment vessel is positioned in the underground stratum, the containment vessel and the seepage-proof drainage structure are combined, and the multilayer water delivery and drainage structure is arranged, so that the containment vessel structure of the underground nuclear power station can prevent external groundwater from entering a nuclear island, and prevent radioactive wastewater in the containment vessel from polluting external groundwater in serious accidents.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Detailed Description
The invention will be further described with reference to the drawings and the specific examples.
As shown in figure 1, the impermeable karst cave type containment of an underground nuclear power station is positioned in an underground rock stratum 1 and comprises a concrete spraying anchor layer 2, an outer layer hydrophobic blind pipe 3, an outer layer waterproof curtain 4, an impermeable concrete layer 5, an inner layer waterproof curtain 6, an inner layer hydrophobic blind pipe 7, a reinforced concrete protective layer 8 and a steel lining 9 which are sequentially arranged from outside to inside, wherein a plurality of anchor rods 10 are arranged between the underground rock stratum 1 and the concrete spraying anchor layer 2, the outer layer hydrophobic blind pipe 3 is tightly attached between the outer layer waterproof curtain 4 and the concrete spraying anchor layer 2 and is connected with a non-radioactive drainage system through an outer layer hydrophobic pipe 11, and in the embodiment, the outer layer hydrophobic blind pipe 3 is uniformly distributed in a ring shape around the containment for collecting trace water seepage outside the outer layer waterproof curtain 4; the inner layer hydrophobic blind pipe 7 is tightly arranged between the inner layer waterproof curtain 6 and the reinforced concrete protective layer 8 and is connected with the radioactive drainage system through the inner layer hydrophobic pipe 12, in the embodiment, the inner layer hydrophobic blind pipe 7 is uniformly arranged at the lower half part and the bottom of the containment in a ring shape around the containment, and is used for collecting trace radioactive wastewater leaked by the containment in serious accidents.
In the embodiment, the bottom of the containment vessel is of an ellipsoidal or spherical structure, which is beneficial to the stability and stress of the containment vessel structure; the thickness of the concrete spraying anchor layer 2 is not less than 50cm, and the built-in steel bars strengthen the structural strength; the thickness of the impermeable concrete layer 5 is not less than 50cm, and the impermeable grade is not less than P8; the thickness of the reinforced concrete protective layer 8 is not less than 10cm; the steel lining 9 is in close proximity to the reinforced concrete cover 8 to maintain the anti-seepage and pressure-resistant function of the containment.
During normal operation, underground water outside the containment slightly leaks towards the containment direction, when underground water passes through the concrete spraying anchor layer 2 and leaks to the outer waterproof curtain 4, the underground water is collected by the outer hydrophobic blind pipe 3 outside the outer waterproof curtain 4 and is collected to the bottom of the containment, and is collected to the non-radioactive drainage system at the outer hydrophobic pipe 11 at the bottom of the containment for treatment.
In case of serious accident, to cool the reactor core, a large amount of cooling water is injected into the containment through a special safety facility, the cooling water and radioactive substances in the containment are mixed into radioactive waste liquid, at this time, if an inner steel lining 9 at the bottom of the containment is damaged, the radioactive waste liquid generates tiny leakage through a reinforced concrete layer 8, and the leaked trace radioactive waste liquid is collected by an inner hydrophobic blind pipe 7 at the inner side of an inner waterproof curtain 6 and is discharged to a radioactive drainage system for treatment through an inner hydrophobic pipe 12.
The foregoing has shown and described the basic principles and main structural features of the present invention. The present invention is not limited to the above examples, and various changes and modifications may be made therein without departing from the spirit and scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. An underground nuclear power station prevention of seepage karst cave formula containment, is located in the underground formation, its characterized in that: the concrete spraying anchor layer, the outer layer hydrophobic blind pipe, the outer layer waterproof curtain, the impermeable concrete layer, the inner layer waterproof curtain, the inner layer hydrophobic blind pipe, the reinforced concrete protection layer and the steel lining are sequentially arranged from outside to inside, and the outer layer hydrophobic blind pipe is closely arranged between the outer layer waterproof curtain and the concrete spraying anchor layer and is connected with a non-radioactive drainage system through the outer layer hydrophobic pipe to collect trace water seepage outside the outer layer waterproof curtain; the inner layer hydrophobic blind pipe is tightly arranged between the inner layer waterproof curtain and the reinforced concrete protective layer and is connected with the radioactive drainage system through the inner layer hydrophobic pipe to collect trace radioactive wastewater leaked by the containment in a serious accident.
2. The impermeable karst cave type containment of an underground nuclear power station of claim 1, wherein: the outer layer hydrophobic blind pipes are uniformly distributed around the containment.
3. The impermeable karst cave type containment of an underground nuclear power station of claim 1, wherein: the inner layer hydrophobic blind pipes are uniformly arranged on the lower half part and the bottom of the containment around the containment.
4. The impermeable karst cave type containment of an underground nuclear power station of claim 1, wherein: the thickness of the concrete spraying anchor layer is not less than 50cm, and a reinforcing steel bar reinforcing structure is arranged in the concrete spraying anchor layer.
5. The impermeable karst cave type containment of an underground nuclear power station of claim 1, wherein: the thickness of the impermeable concrete layer is not less than 50cm, and the impermeable grade is not less than P8.
6. The impermeable karst cave type containment of an underground nuclear power station of claim 1, wherein: the thickness of the reinforced concrete protective layer is not less than 10cm.
7. The impermeable karst cave type containment of an underground nuclear power station of claim 1, wherein: the bottom of the containment vessel is of an ellipsoidal or spherical structure.
8. The impermeable kart containment vessel of an underground nuclear power plant according to any one of claims 1 to 7, wherein: the steel lining is tightly attached to the reinforced concrete protective layer so as to maintain the seepage-proofing and compression-resisting functions of the containment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811551033.XA CN109585042B (en) | 2018-12-18 | 2018-12-18 | Anti-seepage karst cave type containment of underground nuclear power station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811551033.XA CN109585042B (en) | 2018-12-18 | 2018-12-18 | Anti-seepage karst cave type containment of underground nuclear power station |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109585042A CN109585042A (en) | 2019-04-05 |
| CN109585042B true CN109585042B (en) | 2024-04-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811551033.XA Active CN109585042B (en) | 2018-12-18 | 2018-12-18 | Anti-seepage karst cave type containment of underground nuclear power station |
Country Status (1)
| Country | Link |
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| CN (1) | CN109585042B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4045289A (en) * | 1976-10-22 | 1977-08-30 | The United States Of America As Represented By The United States Energy Research And Development Administration | Nuclear reactor containment structure with continuous ring tunnel at grade |
| JPH10206586A (en) * | 1997-01-17 | 1998-08-07 | Mitsubishi Heavy Ind Ltd | Remodeling method for increasing internal volume of pressurized water reactor containment |
| RU2165108C2 (en) * | 1999-06-15 | 2001-04-10 | Санкт-Петербургский научно-исследовательский и проектно-конструкторский институт АТОМЭНЕРГОПРОЕКТ | Protective system of protective shell of water-cooled reactor plant |
| JP2011053084A (en) * | 2009-09-02 | 2011-03-17 | Hitachi-Ge Nuclear Energy Ltd | Nuclear power plant |
| CN202126850U (en) * | 2011-06-03 | 2012-01-25 | 上海核工程研究设计院 | Impoundment type passive double-layer containment vessel |
| JP2013002838A (en) * | 2011-06-13 | 2013-01-07 | Fujita Corp | Nuclear plant installation structure |
| 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 |
| CN106128520A (en) * | 2016-08-10 | 2016-11-16 | 长江勘测规划设计研究有限责任公司 | A kind of underground nuclear power station rock mass cavern type containment |
| GB201810951D0 (en) * | 2018-07-04 | 2018-08-15 | Rolls Royce Plc | A nuclear power plant |
| CN209591540U (en) * | 2018-12-18 | 2019-11-05 | 长江勘测规划设计研究有限责任公司 | A kind of underground nuclear power station antiseepage grotto type containment |
-
2018
- 2018-12-18 CN CN201811551033.XA patent/CN109585042B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4045289A (en) * | 1976-10-22 | 1977-08-30 | The United States Of America As Represented By The United States Energy Research And Development Administration | Nuclear reactor containment structure with continuous ring tunnel at grade |
| JPH10206586A (en) * | 1997-01-17 | 1998-08-07 | Mitsubishi Heavy Ind Ltd | Remodeling method for increasing internal volume of pressurized water reactor containment |
| RU2165108C2 (en) * | 1999-06-15 | 2001-04-10 | Санкт-Петербургский научно-исследовательский и проектно-конструкторский институт АТОМЭНЕРГОПРОЕКТ | Protective system of protective shell of water-cooled reactor plant |
| JP2011053084A (en) * | 2009-09-02 | 2011-03-17 | Hitachi-Ge Nuclear Energy Ltd | Nuclear power plant |
| CN202126850U (en) * | 2011-06-03 | 2012-01-25 | 上海核工程研究设计院 | Impoundment type passive double-layer containment vessel |
| JP2013002838A (en) * | 2011-06-13 | 2013-01-07 | Fujita Corp | Nuclear plant installation structure |
| 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 |
| CN106128520A (en) * | 2016-08-10 | 2016-11-16 | 长江勘测规划设计研究有限责任公司 | A kind of underground nuclear power station rock mass cavern type containment |
| GB201810951D0 (en) * | 2018-07-04 | 2018-08-15 | Rolls Royce Plc | A nuclear power plant |
| CN209591540U (en) * | 2018-12-18 | 2019-11-05 | 长江勘测规划设计研究有限责任公司 | A kind of underground nuclear power station antiseepage grotto type containment |
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| CN109585042A (en) | 2019-04-05 |
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