CN106531265B - A kind of fully buried layout design method of underground nuclear power station main building group - Google Patents

A kind of fully buried layout design method of underground nuclear power station main building group Download PDF

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CN106531265B
CN106531265B CN201610955569.2A CN201610955569A CN106531265B CN 106531265 B CN106531265 B CN 106531265B CN 201610955569 A CN201610955569 A CN 201610955569A CN 106531265 B CN106531265 B CN 106531265B
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cavern
underground
building
island
main
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CN106531265A (en
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喻飞
赵鑫
杨启贵
刘海波
杨家胜
张涛
苏毅
覃琳捷
付文军
甘乐
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Changjiang Institute of Survey Planning Design and Research Co Ltd
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Changjiang Institute of Survey Planning Design and Research Co Ltd
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    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21D—NUCLEAR POWER PLANT
    • G21D1/00—Details of nuclear power plant
    • G21D1/02—Arrangements of auxiliary equipment
    • 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

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Underground Structures, Protecting, Testing And Restoring Foundations (AREA)

Abstract

The invention discloses a kind of fully buried layout design method of underground nuclear power station main building group, including by reactor building the cavern layout plane domain shared by the nuclear island cavity group of separate unit nuclear power generating sets underground geometric center；Turbine building the cavern layout position should make anti-main steam line straightway distance L1Meet L1≦400m；Propose underground nuclear island, the main cavity group of underground conventional island and the minimum spacing formula of main cavity group spacing between the two；It proposes when conventional island, nuclear island are arranged in underground, requirement of reactor building cavern and loading and unloading workshop Mass Near The Top of Underground Cavity coating ground body thickness etc..The present invention successfully solves nuclear island of nuclear power station, conventional island underground separation arrangement and how definitely to descend nuclear island and underground conventional island position relationship, the technical barrier of main building group position, rationally easily provides a kind of fully buried layout design method of rational spatial relation and each section region main building group position between determining underground nuclear power station underground nuclear island, underground conventional island.

Description

A kind of fully buried layout design method of underground nuclear power station main building group
Technical field
The present invention relates to the layout design methods of factory, fully buried in particular to a kind of underground nuclear power station main building group Layout design method.
Background technology
As society is higher and higher to the attention rate of nuclear safety, especially after Fukushima, Japan nuclear accident, promote countries in the world It reappraises, examine respective nuclear plant safety and nuclear energy planning closely and further improve cognition water of the mankind to nuclear power development It is flat.Existing nuclear power technology, which includes three generations's nuclear power technology, to be resisted the ability of serious external event (such as tsunami, earthquake, big aircraft is hit Hit) also receive the query of the public.
By modern underground engineering technology and the practical experience of large-scale water power underground power house, nuclear power station is moved in massif, The possibility from the upper practical a large amount of radioactive substance releases of elimination of design can be achieved, and have simplified Emergency Planning Zone condition, because This, which studies medium-and-large-sized underground nuclear power station, has become domestic and international research hotspot.Chinese patent mountainous region fully-buried underground nuclear power station CN201420316584.9 etc. discloses a kind of underground nuclear power station nuclear island, conventional island is placed in arrangement form in massif, but does not have Have and propose definitely to descend nuclear island and conventional island position relationship and the specific design method of main building group position.
Underground nuclear power station nuclear island, conventional island main building are mainly arranged in underground hole group, the different factory site hydrology, Under the conditions of matter, landform etc., conventional island cavity group bottom elevation can with nuclear island cavity group benchmark bottom elevation arrangement in same level, Nuclear island cavity group benchmark bottom elevation above and below is also disposed at, from underground nuclear power station main building group space arrangement, Belong to a kind of fully buried arrangement of underground nuclear power station, it is necessary to study underground core in a kind of fully buried arrangement of underground nuclear power station thus The method of spatial position and each section region main building group's location determination between island, conventional island, formation is a kind of general to bury entirely Formula layout design method, to instruct the development of the work such as underground nuclear power station planning, addressing, research, design.
Invention content
It is an object of the invention to overcome the shortcoming of above-mentioned existing background technology, with reference to the characteristics of underground nuclear power station, It proposes a kind of definitely to descend the underground nuclear power station master of spatial position and each section region main building group position between nuclear island, conventional island The fully buried layout design method of workshop group.
The purpose of the present invention is what is reached by following measure：A kind of fully buried cloth of underground nuclear power station main building group installs Meter method, is characterized in that, includes the following steps：
A) by the bottom elevation c of reactor building cavern1It is arranged on level of ground water s1More than, the reactor building cavern Bottom elevation c1With level of ground water s1Between there are setting reactor building cavern, the main cavity group of underground nuclear island and underground conventional island masters The benchmark bottom elevation a of the main cavity group of underground nuclear island is arranged on reactor building hole by the space of cavity group bottom scupper The bottom elevation c of room1More than, the benchmark bottom elevation of the main cavity group of underground conventional island is set as turbine building cavern Bottom elevation c2；
B) the reactor building cavern is centrally disposed on shared by the main cavity group of separate unit underground nuclear power generating sets underground nuclear island The geometric center O of plane domain1Place, by other underground nuclear island main building the cavern layouts on reactor building cavern periphery；
C W) is set as by hole maximum in two caverns being adjacently positioned is wide, and maximum hole high setting is H, and adjacent cavern's spacing is D, d=1/2 (W+H)+△ d, △ d are the correction value considered after cavern's stability, construction technology；The underground nuclear island master Cavity group, the main cavity group of underground conventional island between the two spatial position main cavern's spacing value be more than or equal to adjacent cavern's spacing d；The spacing of other workshop caverns of underground nuclear island and the reactor building cavern is set as d2；
D) by turbine building the cavern layout near the reactor building cavern and close to the side at water source, institute It states turbine building cavern by main steam line with reactor building cavern to be connected, the underground turbine building Cavern (8) position makes the length of straigh line L of main steam line1Meet L1≤400m；
E) with the longitudinal axis M of the turbine building cavern2On the basis of, it is conventional in both sides arrangement underground respectively Island auxiliary production facility cavern, wherein intake structure and cooling facility are along the axis M2It is arranged in beside water source；
F) by the main cavity group top loading-unloading material workshop cavern bottom elevation e of the underground nuclear island1It is set as reactor building hole The bottom elevation c of room1In addition the height h of the reactor building cavern1And reactor building Mass Near The Top of Underground Cavity elevation is to loading and unloading factory The distance between room cavern bottom elevation h2, i.e. e1=c1+h1+h2；By loading and unloading workshop cavern) hole diameter is set as d3, hole high setting For H2, the main cavity group top loading-unloading material workshop Mass Near The Top of Underground Cavity coating Rock And Soil thickness h of underground nuclear island3More than loading and unloading factory Room cavern hole diameter d32.5 times；
G) in the top loading-unloading material workshop cavern, high-order water injecting tank or pond are arranged in reactor building cavern Side makes the high-order water injecting tank or pond center line M3With reactor building cavern center line M4It overlaps；Two emergency cooling water ponds or Case is arranged symmetrically, and the line of centres M of described two emergency cooling water ponds or case in the high-order water injecting tank or pond both sides5With two The radial direction line M of platform steam generator6Vertically.
Preferably, the step A) in further include：It is simple in hydrogeologic condition, when factory site underground water buried depth is big, underground Water level s1For natural ground-water level；In complicated hydrogeological conditions, factory site underground water buried depth hour, level of ground water s1For in underground After nuclear island, the setting white-out measure of conventional island cavity group periphery make underground nuclear island, conventional island cavity group and its periphery form drainage area Level of ground water.
Preferably, the step C) in adjacent cavern's spacing be d >=50m, be conducive to ensuring Main Underground cavity group stablize In the case of, make the process pipelines being connected between each workshop cavern of underground nuclear power station most short.
Preferably, the step D) in when the main cavity group top loading-unloading material workshop Mass Near The Top of Underground Cavity coating ground of underground nuclear island Body thickness 2d3≤h3During ＜ 100m, in spacing between meeting cavern and cavern's stability requirement, turbine building cavern indulges To axis M2With reactor building cavern longitudinal axis M8It is arranged vertically or turbine building cavern longitudinal axis M2With it is anti- Ying Dui workshops cavern longitudinal axis M8Parallel arrangement, and turbine building cavern bottom elevation c2Interval is s1＜ c2＜ e1.According to factory site topographic and geologic condition, stablize meeting cavern with the requirement of main steam line length of straigh line and in water intaking just In the case of profit, turbine building the cavern layout position can flexibly be set.
Preferably, the step F) in further include：Reactor building Mass Near The Top of Underground Cavity coating rock mass thickness h2Meet h2It is more than Equal to 2.5d1, d1For the diameter of reactor building cavern, wherein coating rock mass thickness, i.e. reactor building Mass Near The Top of Underground Cavity elevation The distance between bottom elevation to loading and unloading workshop cavern h2, be conducive to improve stability of tunnel.If lithology is high-quality, hole Room stablize it is guaranteed under the conditions of, top cover layer rock mass thickness h2Meet h2﹤ 2.5d1Also it is feasible.
Preferably, the step D) in further include：Setting turbine building cavern hole width is W1, a height of H in hole1, work as dress Discharging workshop Mass Near The Top of Underground Cavity coating Rock And Soil thickness h3More than or equal to 100m+H1-H2, 300m ﹥ h2≧2.5d1When, steamer is sent out Motor workshop cavern longitudinal axis M2It can be with the main cavity group top loading-unloading material workshop cavern longitudinal axis M of underground nuclear island9Vertical cloth It puts, and turbine building cavern bottom elevation c2More than or equal to the main cavity group top loading-unloading material workshop cavern of the underground nuclear island Bottom elevation e1.It, can be by the main cavity group of underground nuclear island and conventional island cavity group point when massif is high suddenly, lateral arrangement space is limited Upper and lower two layers of arrangement, realization are reliably physically isolated.
Preferably, the step B) in further include：Fuel plant cavern is made to face the combustion of the reactor building cavern Expect transfer passage；By electrical building the cavern layout between reactor building cavern and turbine building cavern；Vapour is set Vertical range between turbine generator workshop cavern and electrical building cavern is d4；Nuclear island three-protection design system is arranged in underground In nuclear auxiliary building；Nuclear waste workshop in underground is separately provided, is shared for more nuclear power generating sets, radwaste is temporarily stored in ground In lower nuclear waste workshop.It can ensure that fuel transport channel distance is most short, fuel transport facility；Enough space cloth can be provided simultaneously Electrical penetration is put, convenient for the connection between underground nuclear island and underground conventional island；Nuclear island three-protection design system is arranged in underground, The risk of radwaste leakage can be substantially reduced；Individually arrangement can reduce underground nuclear power station nuclear island cavity group rule to nuclear waste workshop Mould is conducive to cavity group stabilization, while can do nuclear waste workshop cavern capacity greatly, low in being used as after being also further processed to put Waste disposal site.
Preferably, the step D) in further include：The main steam line and main feed water pipe trace integration piping lane is made to pass through electricity Gas workshop cavern can reduce cavern excavation quantities, while be convenient for the control valve in main steam and main feed water pipe road, isolating valve etc. In electrical building, convenient for control.
Preferably, the step B) in further include：When turbine building cavern longitudinal direction is indulged with loading and unloading workshop cavern To when being arranged vertically at the top of the main cavity group of underground nuclear island, electrical building, which is divided into the top part and the bottom part, point to be arranged vertically, in the electrical factory in top Main steam isolation valve in room cavern is set, main feed water isolating valve, top electrical building hole are set in lower electrical workshop cavern Room bottom elevation is set as turbine building cavern bottom elevation c2, the impact and damage of main steam and main feedwater to pipeline can be reduced Wound, convenient for control.
Preferably, the step A) in reactor building cavern, the main cavity group of underground nuclear island and the main cavern of underground conventional island If the bottom scupper of group is set as one layer and is either respectively set to one layer or dried layer jointly, can be according to factory site condition and core The distance between island cavity group bottom and level of ground water are flexibly set.
Preferably, the step E) in further include：Intake structure and cooling facility can be according to underground chamber scales Divide underground or set on the ground close to water source；Cooling tower is set, makes axis M of the cooling tower along turbine building2Cloth It puts beside the water source on surface water intaking platform, the elevation of setting water intaking platform is e2, benchmark flood level is s2, s2＜ e2≤e1, can Reduce cavern's scale, circulating cooling make-up water facility advantageously ensures that other building safeties.
Preferably, the step G) in further include：High-order water injecting tank or pond and two emergency cooling water ponds or case are loading and unloading Processing is directly excavated in material workshop cavern to be formed or individually built；The high position water injecting tank or pond are enclosed construction, with interior displacement Expect water tank connection, be passive Reactor cavity flooding system water supply；Described two emergency cooling water ponds or case are open type, respectively two Secondary side passive residual heat removal system and Passive containment cooling system supply water.High-order water injecting tank or pond and two emergent coolings Pond or tankage are unrestricted, can be with large capacity water storage.Therefore large capacity, high potential difference can ensure that non-passive safety cooling system Effectively operation for a long time, the time for not needing to operator intervention are much larger than 72 hours of ground three generations's nuclear power AP1000 etc..
Preferably, underground is all placed in the relevant workshop of radioactivity, underground nuclear waste workshop is specially treated Afterwards, short-life middle low-level waste disposal site can be used as.
Preferably, in the underground nuclear island top loading-unloading material workshop cavern, by nuclear island fire pump room, emergency diesel-oil computer room The both sides in high-order water injecting tank or pond are arranged in, meet building's fire requirement, power plant safety can be improved.
Preferably, the underground nuclear island top loading-unloading material workshop cavern is mainly used in construction period as reactor building The operating platform of cavern con struction and equipment hoisting.
The fully buried layout design method of underground nuclear power station main building group of the present invention, has the advantages that：
(1) nuclear island of nuclear power station, conventional island underground separation arrangement are successfully solved and how definitely to descend nuclear island and underground Conventional island position relationship, the technical barrier of main building group position rationally easily provide a kind of determining underground nuclear power station underground Rational spatial relation and each section region between nuclear island, underground conventional island, underground nuclear island top loading-unloading material workshop cavern The fully buried layout design method of main building group position.
(2) by being rationally configured lower nuclear island cavity group benchmark bottom elevation and scupper, perfect white-out water system is separately set, Underground nuclear island cavity group can be made in rock mass drainage area, effectively to block migration of the radionuclide in underground always.
(3) the main cavity group of underground nuclear island, the main cavity group of underground conventional island and between the two main cavern's spacing it is reasonable really It is fixed, in the case of can stablizing ensuring cavity group, make the piping of nuclear power plant technique system, wiring lengths most short, improve power station economy Property.
It (4), can by determining rational underground nuclear island cavity group top loading-unloading material workshop cavern bottom elevation and cavern's spacing Ensure that underground nuclear island cavity group is stablized, promote underground nuclear island anti-seismic performance.
(5) underground nuclear power station underground nuclear island, underground conventional island, main building group in the nuclear island top loading-unloading material workshop cavern of underground Rationally determining for position, can not only ensure the stability of the main cavity group of underground nuclear power station, but also can obtain reactor building cavern The larger construction operation space in top, at the same can reduce main steam line straight line length of pipe section, nuclear island and head-tank or case and The length of the connected passive system pipeline such as emergency cooling water pond or case, improves system reliability and economy.
Description of the drawings
Fig. 1 is a kind of structure diagram one of the fully buried arrangement of underground nuclear power station main building group；
Fig. 2 is a kind of structure diagram two of the fully buried arrangement of underground nuclear power station main building group；
Fig. 3 is a kind of A-A sectional views of arrangement of main building group in Fig. 1；
Fig. 4 is the A-A sectional views of main building group's another kind arrangement in Fig. 1；
Fig. 5 is the B-B sectional views of Fig. 2 main building groups；
In figure：Reactor building cavern 1, the main cavity group 2 of underground nuclear island, scupper 3, reactor building cavern scupper 3- 1, main cavity group scupper 3-2, the main cavity group 4 of underground conventional island, fuel plant cavern 5, fuel transport passageway 6, electrical building Cavern 7, turbine building cavern 8, turbine generator workshop high pressure cylinder driving end 9, underground nuclear power station is close to water source side Conventional island platform 10, high-order water injecting tank or pond 11, two emergency cooling water ponds or case I and II, steam generator 12, main steaming Steam pipe road 13, pipe gallery 14, cooling tower 15, nuclear island fire pump room 16, emergency diesel-oil computer room 17, reactor pressure vessel 18, Reactor pressure vessel lower shell cold end ozzle 19, water source 20, auxiliary production facility cavern 21, separate unit nuclear power generating sets underground nuclear island Plane domain 22 shared by main cavity group, top loading-unloading material workshop cavern 23.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawings and embodiments, but the embodiment should not be construed as pair The limitation of the present invention.
A kind of fully buried layout design method of underground nuclear power station main building group of the present invention is for underground nuclear power station main building What group proposed.As shown in fig. 1~fig. 5, underground nuclear power station main building group includes reactor building cavern 1, the main cavern of underground nuclear island Group 2, scupper 3, reactor building cavern scupper 3-1, main cavity group scupper 3-2, the main cavity group 4 of underground conventional island, combustion Expect workshop cavern 5, fuel transport passageway 6, electrical building cavern 7, turbine building cavern 8, turbine generator workshop High pressure cylinder drives end 9, and underground nuclear power station is close to the conventional island platform 10 of water source side, and high-order water injecting tank or pond 11, two emergent Cooling pond or case I and II, steam generator 12, main steam line 13, pipe gallery 14, cooling tower 15, nuclear island fire pump room 16, emergency diesel-oil computer room 17, reactor pressure vessel 18, reactor pressure vessel lower shell cold end ozzle 19, water source 20 is auxiliary Help production facility cavern 21, plane domain 22 shared by the main cavity group of separate unit nuclear power generating sets underground nuclear island, top loading-unloading material workshop hole Room 23.
A kind of one embodiment of the fully buried layout design method of underground nuclear power station main building group of the present invention, including as follows Step：
A. by (the diameter d of reactor building cavern 11=45m) bottom elevation (c1=170m) it is arranged on level of ground water (s1= More than 150m), bottom elevation c1With level of ground water s1There are setting reactor building cavern 1, the main cavity groups of underground nuclear island between the two 2 and the space of the main 4 bottom scupper 3 of cavity group of underground conventional island, by the benchmark bottom elevation setting of the main cavity group 4 of underground conventional island Bottom elevation c for turbine building cavern 82.By 18 lower shell cold end ozzle of reactor pressure vessel, 19 centerline height Journey is set as the main cavity group benchmark bottom elevation a of underground nuclear island, and nuclear island main cavity group benchmark bottom elevation (a=180m) in underground is being reacted Bottom elevation (the c of heap workshop cavern 11=170m) more than.
It is simple in hydrogeologic condition, when factory site underground water buried depth is big, level of ground water s1For natural ground-water level.In the hydrology Complex geologic conditions, factory site underground water buried depth hour, level of ground water s1To set white-out measure on underground nuclear island cavity group periphery Underground nuclear island cavity group and its periphery is made to form the level of ground water behind drainage area.
B. the reactor building cavern 1 is centrally disposed on shared by the main cavity group of separate unit underground nuclear power generating sets underground nuclear island The geometric center O of plane domain 22 (underground nuclear power station CUP600 types 400m × 300m)1Place, by other underground nuclear island main buildings Cavern is arranged in 1 periphery of reactor building cavern nearby.
C. W is set as by hole maximum in the Liang Zhu caverns being adjacently positioned is wide, maximum hole high setting is H, between adjacent main cavern Away from for d, d=1/2 (W+H)+△ d, △ d are the correction value considered after the factors such as cavern's stability, construction technology；Underground The main cavity group 2 of nuclear island, the main cavity group 4 of underground conventional island and main cavern's spacing value of spatial position should be greater than between the two In adjacent main cavern's spacing d；By other underground nuclear island factory building caverns arranged nearby and (the maximum wide W in hole of reactor building cavern 1 =d1=45m, the maximum high H=h in hole1=80m) spacing be set as d2=65m.
D. turbine building cavern 8 is arranged in reactor building cavern 1 nearby and close to water source side, vapour nearby Turbine generator workshop cavern 8 is connected by main steam line 13 with reactor building cavern 1, underground turbine building cavern 8 positions should make the length of straigh line L of main steam line 131Meet L1≤400m；
E. along the longitudinal axis M of turbine building cavern 82Arrange underground conventional island cavity group power distribution equipment and its It assists production facility cavern 21, and e.g., wherein intake structure and cooling facility is along the axis M2It is arranged in by water source 20 Side；
F. by the bottom elevation e of the main 2 top loading-unloading material workshop cavern 23 of cavity group of underground nuclear island1It is set as reactor building hole The bottom elevation c of room 11In addition height (the h of reactor building cavern 11=80m) and 1 cope level of reactor building cavern to dress The distance between the bottom elevation of discharging workshop cavern 23 (h2=120m), i.e. e1=c1+h1+h2=170m+80m+120m=370m； Main 2 top loading-unloading material workshop cavern of cavity group, the 23 top cover layer Rock And Soil thickness h of underground nuclear island3It should be greater than loading and unloading workshop hole The maximum hole diameter in room 23 (is set as d3=20m) 2.5 times, set h3=90m；Wherein, 1 cope level of reactor building cavern arrives Coating rock mass thickness h between the bottom elevation of loading and unloading workshop cavern 232Meet h2≥2.5d1, d1=45m.
G. in top loading-unloading material workshop cavern 23, high-order water injecting tank or pond 11 are arranged in reactor building cavern 1 Side makes the high-order water injecting tank or pond center line M3With reactor building cavern center line M4It overlaps；Two emergency cooling water ponds or Case I, II is arranged symmetrically, and described two emergency cooling water ponds or case line of centres M in the high-order water injecting tank or 11 both sides of pond5 With the radial direction line M of two steam generators 126Vertically, in the underground nuclear island top loading-unloading material workshop cavern 23, by core Island fire pump room 16, emergency diesel-oil computer room 17 are arranged in the both sides in high-order water injecting tank or pond 11.
In the present embodiment, conventional island and nuclear island benchmark bottom elevation are equal, i.e. c2=a=180m, electrical building 7 are arranged in instead Between Ying Dui workshops cavern 1 and turbine building cavern 8,8 longitudinal axis M of turbine building cavern2With reactor 1 longitudinal axis M of workshop cavern8It is arranged vertically, the distance between setting turbine building cavern 8 and electrical building cavern 7 For d4=d2=65m, the length of straigh line L of main steam line 131It can be effectively controlled in 250m, meet process system requirement.
Main steam line 13 and main feed water pipe trace integration piping lane 14 are passed through in electrical building cavern 7 in the present invention.Underground core Island auxiliary plant, safe workshop cavern and fuel plant cavern 5 are combined into a cavern.Radioactive wastes processing system is arranged in In the nuclear island auxiliary plant of underground, radwaste is temporarily stored in the nuclear waste workshop of underground.
As shown in fig. 1~fig. 5, along 8 axis of turbine building to be arranged in water source 20 attached for cooling tower 15 in the present invention On nearly water intaking platform 10, the elevation of setting water intaking platform 10 is e2=180m, benchmark flood level are s2=145m, meets s2＜ e2 ≤e1。
Underground nuclear island top loading-unloading material workshop cavern 23 is used as reactor building cavern in construction period in the present invention Construction and the platform of equipment hoisting.There is provided high potential difference, the high-order water injecting tanks 11, two of large capacity in loading and unloading workshop cavern 23 A emergency cooling water pond I, II.High-order water injecting tank 11 is enclosed construction, is connected with built-in material-changing water tank, predominantly passive heap chamber Flood pattern supplies water, identical with water constituent in built-in material-changing water tank；Two emergency cooling water ponds I, II are open type, respectively two Secondary side passive residual heat removal system and Passive containment cooling system supply water.
The present invention second embodiment the difference lies in step A with one embodiment) in bottom scupper 3 Including reactor building cavern scupper 3-1 and main cavity group scupper 3-2, it can be set as one layer jointly, can also set respectively If for one layer or dried layer.
The present invention third embodiment the difference lies in step B with one embodiment) in lithology quality It is good, cavern stablize it is guaranteed under the conditions of, top cover layer rock mass thickness h2For 100m, main 2 top loading-unloading of cavity group of underground nuclear island Expect the bottom elevation e of workshop cavern 231It is set as 1 bottom elevation c of reactor building cavern1In addition 1 height (h of reactor building cavern1 =80m) and its top cover layer rock mass thickness (h2=100m), i.e. e1=c1+h1+h2=350m.
The present invention the 4th embodiment the difference lies in step F with one embodiment) in lithology quality It is good, cavern stablize it is guaranteed under the conditions of, between the bottom elevation of 1 cope level of reactor building cavern to loading and unloading workshop cavern 23 Coating rock mass thickness h22.5d can be less than1。
The difference lies in electrical building 7 is arranged in reaction to the 5th embodiment of the present invention with one embodiment Between heap workshop cavern 1 and turbine building cavern 8,8 longitudinal axis M of turbine building cavern2With reactor factory 1 longitudinal axis M of room cavern8Parallel arrangement.
The present invention the 6th embodiment the difference lies in step F with one embodiment) in steam turbine generator factory 8 hole width of room cavern is W1=32m, a height of H in hole1=50m, the loading and unloading workshop cavern a height of H in maximum hole2=30m, h3=150m, h2 During=120m, 8 longitudinal axis M of turbine building cavern22 top loading-unloading material workshop cavern 23 of cavity group main with underground nuclear island Longitudinal axis M9It is arranged vertically, and 8 bottom elevation c of turbine building cavern2Equal to main 2 top of cavity group of the underground nuclear island The bottom elevation e of loading and unloading workshop cavern 231, c2=e1=c1+h1+h2=370m；Electrical building, which is divided into the top part and the bottom part, point to be arranged vertically, Main steam isolation valve is set in top electrical building cavern 7-1, is set in lower electrical workshop cavern 7-2 main to water segregation Valve, top electrical building cavern 7-1 bottoms elevation are set as 8 bottom elevation c of turbine building cavern2, main steam line 13 Length of straigh line L1It can be effectively controlled in 380m, meet process system requirement.
The present invention successfully solves nuclear island of nuclear power station, conventional island is arranged in underground separation arrangement and how to determine the two Between position relationship, main building group position technical barrier, rationally easily provide a kind of determining underground nuclear power station underground nuclear island Rational spatial position between cavity group 2, underground nuclear island conventional island cavity group 4, underground nuclear island top loading-unloading material workshop cavern 23 Relationship and the fully buried layout design method of each section region main building group position.
Obviously, those skilled in the art can carry out invention spirit of the various modification and variations without departing from the present invention And range.If in this way, belong to the range of the claims in the present invention and its equivalent technology to these modifications and changes of the present invention Within, then the present invention is also intended to include these modifications and variations.
Other unspecified parts are the prior art.The present invention is not strictly limited to above-described embodiment.

Claims (15)

  1. A kind of 1. fully buried layout design method of underground nuclear power station main building group, which is characterized in that include the following steps：
    A) by the bottom elevation c of reactor building cavern (1)1It is arranged on level of ground water s1More than, the reactor building cavern (1) Bottom elevation c1With level of ground water s1Between there are setting reactor building cavern (1), the main cavity group of underground nuclear island (2) and undergrounds The space of the main cavity group of conventional island (4) bottom scupper (3) sets the benchmark bottom elevation a of the main cavity group of underground nuclear island (2) Put the bottom elevation c in reactor building cavern (1)1More than, the benchmark bottom elevation of the main cavity group of underground conventional island (4) is set It is set to the bottom elevation c of turbine building cavern (8)2；
    B) the reactor building cavern (1) is centrally disposed on shared by the main cavity group of separate unit underground nuclear power generating sets underground nuclear island and is put down The geometric center O in face region (22)1Place, by other underground nuclear island main building the cavern layouts in the reactor building cavern (1) Periphery；
    C W) is set as by hole maximum in two caverns being adjacently positioned is wide, and maximum hole high setting is H, and adjacent cavern's spacing is d, d= 1/2 (W+H)+△ d, △ d is the correction value considered after cavern's stability, construction technology；The main cavern of underground nuclear island Group (2), the main cavity group of underground conventional island (4) between the two spatial position main cavern's spacing value be more than or equal to adjacent cavern between Away from d；The spacing of other workshop caverns of underground nuclear island and the reactor building cavern (1) is set as d2；
    D) by turbine building cavern (8) be arranged in the reactor building cavern (1) nearby and close to water source side, Turbine building cavern (8) is connected by main steam line (13) with reactor building cavern (1), underground steam turbine generator Workshop cavern (8) position makes the length of straigh line L of main steam line (13)1Meet L1≤400m；
    E) with the longitudinal axis M of turbine building cavern (8)2On the basis of, respectively in both sides arrangement underground conventional island auxiliary life It produces facility cavern (21), wherein intake structure and cooling facility is along the axis M2It is arranged in beside water source (20)；
    F) by the main cavity group of underground nuclear island (2) top loading-unloading material workshop cavern (23) the bottom elevation e1It is set as reactor building The bottom elevation c of cavern (1)1In addition the height h of the reactor building cavern (1)1It is and high at the top of reactor building cavern (1) Journey is to the distance between loading and unloading workshop cavern (23) bottom elevation h2, i.e. e1=c1+h1+h2；By loading and unloading workshop cavern (23) hole Diameter is set as d3, hole high setting is H2, the main cavity group of underground nuclear island (2) top loading-unloading material workshop cavern (23) top covers Layer Rock And Soil thickness h3More than loading and unloading workshop cavern (23) hole diameter d32.5 times；
    G) in the top loading-unloading material workshop cavern (23), high-order water injecting tank or pond (11) are arranged in reactor building cavern (1) top makes the high-order water injecting tank or pond center line M3With reactor building cavern center line M4It overlaps；Two emergent coolings Pond or case (I, II) are arranged symmetrically, and described two emergency cooling water ponds or case in the high-order water injecting tank or pond (11) both sides The line of centres M of (I, II)5With the radial direction line M of two steam generators (12)6Vertically.
  2. 2. a kind of fully buried layout design method of underground nuclear power station main building group according to claim 1, it is characterised in that： The step A) in further include：It is simple in hydrogeologic condition, when factory site underground water buried depth is big, level of ground water s1Under natively Water level；In complicated hydrogeological conditions, factory site underground water buried depth hour, level of ground water s1For in underground nuclear island, conventional island cavern The setting white-out measure of group periphery makes the level of ground water that underground nuclear island, conventional island cavity group and its periphery are formed behind drainage area.
  3. 3. a kind of fully buried layout design method of underground nuclear power station main building group according to claim 1, it is characterised in that： The step C) in adjacent cavern's spacing be d >=50m.
  4. 4. a kind of fully buried layout design method of underground nuclear power station main building group according to claim 2, it is characterised in that： The step F) in when the main cavity group of underground nuclear island (2) top loading-unloading material workshop cavern (23) top cover layer Rock And Soil thickness h3 Meet 2d3＜ h3During ＜ 100m, turbine building cavern (8) longitudinal axis M2With reactor building cavern (1) longitudinal axis M8It is arranged vertically or turbine building cavern (8) longitudinal axis M2With reactor building cavern (1) longitudinal axis M8It is parallel Arrangement, and turbine building cavern (8) bottom elevation c2Interval is s1＜ c2＜ e1。
  5. 5. a kind of fully buried layout design method of underground nuclear power station main building group according to claim 1 or 4, feature exist In：The step F) in reactor building cavern (1) cope level to covering between the bottom elevation of loading and unloading workshop cavern (23) Cap rock rock mass thickness h2Meet h2≥2.5d1, d1Diameter for reactor building cavern (1).
  6. 6. a kind of fully buried layout design method of underground nuclear power station main building group according to claim 1 or 4, feature exist In：The step F) in reactor building cavern (1) cope level to covering between the bottom elevation of loading and unloading workshop cavern (23) Cap rock rock mass thickness h2Meet h2﹤ 2.5d1, d1Diameter for reactor building cavern (1).
  7. 7. a kind of fully buried layout design method of underground nuclear power station main building group according to claim 1, it is characterised in that： As the step F) in setting turbine building cavern (8) hole width be W1, a height of H in hole1, when loading and unloading workshop cavern (23) Top cover layer Rock And Soil thickness h3More than or equal to 100m+H1-H2, 300m ﹥ h2≧2.5d1When, by turbine building cavern (8) longitudinal axis M2With the main cavity group of underground nuclear island (2) top loading-unloading material workshop cavern (23) longitudinal axis M9It is arranged vertically, and Turbine building cavern (8) bottom elevation c2More than or equal to the main cavity group of underground nuclear island (2) the top loading-unloading material workshop hole The bottom elevation e of room (23)1。
  8. 8. a kind of fully buried layout design method of underground nuclear power station main building group according to claim 3 or 4, feature exist In：The step B) in further include：Fuel plant cavern (5) is made to face the fuel conveying of the reactor building cavern (1) Channel (6)；Electrical building cavern (7) are arranged between reactor building cavern (1) and turbine building cavern (8)； It is d to set the vertical range between turbine building cavern (8) and electrical building cavern (7)4；By nuclear island three-protection design system System is arranged in the nuclear auxiliary building of underground；Nuclear waste workshop in underground is separately provided, is shared for more nuclear power generating sets, radioactivity Waste is temporarily stored in the nuclear waste workshop of underground.
  9. 9. a kind of fully buried layout design method of underground nuclear power station main building group according to claim 7, it is characterised in that： The step B) in further include：When turbine building cavern (8) longitudinal direction and loading and unloading workshop cavern (23) longitudinally perpendicular cloth When putting at the top of the main cavity group of underground nuclear island (2), electrical building, which is divided into the top part and the bottom part, point to be arranged vertically, in top electrical building cavern Setting main steam isolation valve in (7-1), setting main feed water isolating valve, the electrical factory in top in lower electrical workshop cavern (7-2) Room cavern (7-1) bottom elevation is set as turbine building cavern (8) bottom elevation c2。
  10. 10. a kind of fully buried layout design method of underground nuclear power station main building group according to claim 6, feature exist In：The step A) in reactor building cavern (1), the main cavity group of underground nuclear island (2) and the main cavity group of underground conventional island (4) Bottom scupper (3) if being set as one layer or being respectively set to dried layer jointly.
  11. 11. a kind of fully buried layout design method of underground nuclear power station main building group according to claim 8, feature exist In：The step E) in further include：Intake structure and cooling facility can divide underground or ground according to underground chamber scale It is set close to water source；Cooling tower (15) is set, makes axis M of the cooling tower (15) along turbine building2It is arranged in Beside water source (20) on surface water intaking platform (10), the elevation of setting water intaking platform (10) is e2, benchmark flood level is s2, s2＜ e2≤e1。
  12. 12. a kind of fully buried layout design method of underground nuclear power station main building group according to claim 10, feature exist In：The step G) in high-order water injecting tank or pond (11) and two emergency cooling water ponds or case (I, II) in loading and unloading workshop cavern (23) processing is directly excavated in be formed or individually built；The high position water injecting tank or pond (11) are enclosed construction, are reloaded with built-in Water tank connects, and is passive Reactor cavity flooding system water supply；Described two emergency cooling water ponds or case (I, II) are open type, respectively It supplies water for Passive residual heat removal system and Passive containment cooling system.
  13. 13. a kind of fully buried layout design method of underground nuclear power station main building group according to claim 5, feature exist In：Underground is all placed in the relevant workshop of radioactivity, after underground nuclear waste workshop is specially treated, as short-life Middle low-level waste disposal site.
  14. 14. a kind of fully buried layout design method of underground nuclear power station main building group according to claim 1, feature exist In：In the underground nuclear island top loading-unloading material workshop cavern (23), by nuclear island fire pump room (16), emergency diesel-oil computer room (17) It is arranged in the both sides of high-order water injecting tank or pond (11).
  15. 15. a kind of fully buried layout design method of underground nuclear power station main building group according to claim 13, feature exist In：The underground nuclear island top loading-unloading material workshop cavern (23) is used as reactor building cavern con struction in construction period and sets The platform of standby lifting.
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