JP7023784B2 - Protective structure - Google Patents

Protective structure Download PDF

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JP7023784B2
JP7023784B2 JP2018089881A JP2018089881A JP7023784B2 JP 7023784 B2 JP7023784 B2 JP 7023784B2 JP 2018089881 A JP2018089881 A JP 2018089881A JP 2018089881 A JP2018089881 A JP 2018089881A JP 7023784 B2 JP7023784 B2 JP 7023784B2
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protected
connecting passage
protective structure
protective
protected structure
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JP2019196606A (en
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祥広 後藤
翔平 鬼塚
欣治 中野
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Hitachi GE Nuclear Energy Ltd
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    • 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

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Description

本発明は防護構造に係り、例えば、原子力プラントの原子炉建屋等の防護対象構造物を航空機等の飛来物から防護するものに好適な防護構造に関する。 The present invention relates to a protective structure, and relates to a protective structure suitable for protecting a structure to be protected such as a reactor building of a nuclear power plant from flying objects such as an aircraft.

近年、原子力発電プラントの原子炉建屋等に、航空機等の飛来物が衝突した際の影響評価が求められている。 In recent years, there has been a demand for evaluation of the impact of collisions of flying objects such as aircraft with the reactor buildings of nuclear power plants.

原子力発電プラントの原子炉建屋等の防護対象構造物に、航空機等の飛来物が衝突したことによる影響を緩和するための先行技術文献として、特許文献１を挙げることができる。 Patent Document 1 can be mentioned as a prior art document for mitigating the influence of a flying object such as an aircraft colliding with a protected structure such as a reactor building of a nuclear power plant.

この特許文献１には、原子力発電プラントの原子炉建屋等の防護対象構造物の全周に沿って防護丘が設置され、この防護丘は、防護対象構造物である原子力発電プラントの原子炉建屋等よりも高く設定されると共に、航空機及びその他の飛来物や車両の衝突に耐え得る強度に構成されていることが記載されている。 In Patent Document 1, a protective hill is installed along the entire circumference of a protected structure such as a reactor building of a nuclear power plant, and this protected hill is a reactor building of a nuclear power plant which is a protected structure. It is stated that it is set higher than the above and is configured to be strong enough to withstand the collision of aircraft and other flying objects and vehicles.

上述した特許文献１に記載されている防護構造は、原子力発電プラントの原子炉建屋等の防護対象構造物の全周に沿って設置された防護丘が、航空機及びその他飛来物や車両の進入を阻止して防護対象物への衝突を回避しているので、航空機及びその他の飛来物や車両に対し防護対象構造物の健全性が確保できている。 In the protective structure described in Patent Document 1 described above, the protective hills installed along the entire circumference of the protected structure such as the reactor building of the nuclear power plant allow the entry of aircraft and other flying objects and vehicles. Since it is prevented from colliding with the protected object, the soundness of the protected structure can be ensured against aircraft and other flying objects and vehicles.

なお、通常、防護丘には、原子力発電プラントの原子炉建屋等の防護対象構造物へ出入するための連絡通路が設けられており、その連絡通路には開閉可能な扉が設置され、その扉は、航空機及びその他飛来物や車両の衝突により破損しない堅牢な構造に構成されている。 Normally, the protection hill is provided with a connecting passage for entering and exiting the protected structure such as the reactor building of the nuclear power plant, and the connecting passage is equipped with a door that can be opened and closed, and the door is provided. Is constructed in a robust structure that will not be damaged by the collision of aircraft and other flying objects and vehicles.

特開２０１０－９５８８４号公報Japanese Unexamined Patent Publication No. 2010-95884

前述した特許文献１に記載されている防護構造は、防護丘及び連絡通路の扉が航空機等の飛来物の衝突に耐えうる強度を有しているため、飛来物やその破片が防護対象構造物に直接衝突しないようにすることができる。 In the protective structure described in Patent Document 1 described above, since the protective hill and the door of the connecting passage have the strength to withstand the collision of the flying object such as an aircraft, the flying object and its fragments are the protected structure. Can be prevented from colliding directly with.

しかしながら、飛来物が防護対象構造物に衝突した後は、通常、防護対象構造物の点検のために防護対象構造物へ出入する必要があり、しかも、この防護対象構造物への出入りのための連絡通路の扉に飛来物が衝突した場合は、先ずは、その扉を開けるために、飛来物の残骸を撤去する必要が生じることが想定される。 However, after a flying object collides with a protected structure, it is usually necessary to enter and exit the protected structure for inspection of the protected structure, and moreover, for entering and exiting the protected structure. When a flying object collides with the door of the connecting passage, it is assumed that it will be necessary to remove the debris of the flying object in order to open the door.

本発明は上述の点に鑑みなされたもので、その目的とするところは、防護対象構造物に直接航空機等の飛来物が衝突することを回避しつつ、衝突後の防護対象構造物へのアクセス性を低下させない防護構造を提供することにある。 The present invention has been made in view of the above points, and an object thereof is to access the protected structure after the collision while avoiding a direct collision of a flying object such as an aircraft with the protected structure. The purpose is to provide a protective structure that does not reduce sex.

本発明の防護構造は、上記目的を達成するために、防護対象構造物と、該防護対象構造物よりも高く、かつ、前記防護対象構造物の全周を取り囲む防護構造物と、該防護構造物に形成され、前記防護対象構造物へ出入するための連絡通路とを備え、前記連絡通路は、前記防護構造物と直交せず、かつ、前記防護構造物の一部に貫通穴を設けて形成されると共に、前記貫通穴の延長線上に前記防護対象構造物が存在してなく、しかも、前記連絡通路に段差がないように地面と同一高さで、前記連絡通路が設けられる前記防護構造物の壁に対して、前記連絡通路の延長線上に前記防護対象構造物が存在しない角度θだけ傾けて形成され、更に、前記連絡通路には開閉可能な扉が存在していないことを特徴とする防護構造。 In order to achieve the above object, the protective structure of the present invention includes a protected structure, a protective structure that is higher than the protected structure and surrounds the entire circumference of the protected structure, and the protected structure. It is formed in an object and is provided with a connecting passage for entering and exiting the protected structure, the connecting passage is not orthogonal to the protective structure, and a through hole is provided in a part of the protective structure. The protective structure is formed, and the protection target structure does not exist on the extension line of the through hole, and the communication passage is provided at the same height as the ground so that there is no step in the communication passage. It is characterized in that it is formed at an angle θ where the protected structure does not exist on the extension line of the connecting passage with respect to the wall of the object, and further, there is no openable door in the connecting passage. Protective structure.

本発明によれば、防護対象構造物に直接航空機等の飛来物が衝突することを回避しつつ、衝突後の防護対象構造物へのアクセス性を低下させることのない防護構造を得ることができる。 According to the present invention, it is possible to obtain a protective structure that prevents a flying object such as an aircraft from directly colliding with the protected structure and does not reduce accessibility to the protected structure after the collision. ..

本発明の防護構造の実施例１を示す平面図である。It is a top view which shows Example 1 of the protection structure of this invention. 図１のＡ－Ａ線に沿った断面図である。It is sectional drawing which follows the AA line of FIG. 図２のＢ－Ｂ線に沿った断面図である。It is sectional drawing along the line BB of FIG. 本発明の防護構造の実施例２を示し、図３に相当する図である。2 is a diagram corresponding to FIG. 3 showing Example 2 of the protective structure of the present invention. 本発明の防護構造の実施例３を示し、図３に相当する図である。FIG. 3 shows Example 3 of the protective structure of the present invention and is a diagram corresponding to FIG. 本発明の防護構造の実施例４を示す平面図である。It is a top view which shows Example 4 of the protection structure of this invention. 図６のＣ－Ｃ線に沿った断面図である。6 is a cross-sectional view taken along the line CC of FIG.

以下、図示した実施例に基づいて本発明の防護構造を説明する。なお、各実施例において、同一構成部品には同符号を使用する。 Hereinafter, the protective structure of the present invention will be described based on the illustrated examples. In each embodiment, the same reference numerals are used for the same components.

図１、図２及び図３に、本発明の防護構造の実施例１を示す。 1, FIG. 2 and FIG. 3 show Example 1 of the protective structure of the present invention.

該図に示す本実施例の防護構造は、防護対象構造物（例えば、原子炉建屋）１の全周が、この防護対象構造物１よりも高い防護構造物２によって取り囲まれている。 In the protective structure of the present embodiment shown in the figure, the entire circumference of the protected structure (for example, the reactor building) 1 is surrounded by the protected structure 2 higher than the protected structure 1.

上記防護構造物２は、航空機等の飛来物の衝突に耐えられる強度で構成されており、例えば、鉄筋コンクリートで構成されると共に、この防護構造物２に形成され、防護対象構造物１へ出入りするための連絡通路３以外の部位で開口部や切れ目なく設置されている。 The protective structure 2 is configured to have a strength that can withstand the collision of flying objects such as aircraft. For example, the protective structure 2 is formed of reinforced concrete and is formed in the protective structure 2 to enter and exit the protected structure 1. It is installed without an opening or a break in a part other than the connecting passage 3 for the purpose.

また、本実施例の連絡通路３は、防護構造物２と直交せず、防護構造物２の一部に貫通穴を設けて形成され、その延長線上に防護対象構造物１が存在してなく、しかも、地面４と同一高さ（連絡通路３に段差がないこと）で、連絡通路３が設けられる防護構造物２の壁２ａに対して角度θだけ傾けて（角度θは、連絡通路３の延長線上に防護対象構造物１が存在しない角度θだけ傾斜して）形成されている。そして、防護対象構造物１への出入は、連絡通路３のみで行われる。 Further, the connecting passage 3 of the present embodiment is not orthogonal to the protective structure 2, is formed by providing a through hole in a part of the protective structure 2, and the protected structure 1 does not exist on the extension line thereof. Moreover, at the same height as the ground 4 (there is no step in the connecting passage 3), the wall 2a of the protective structure 2 provided with the connecting passage 3 is tilted by an angle θ (the angle θ is the connecting passage 3). (Inclined by an angle θ where the protected structure 1 does not exist) is formed on the extension line of the above. The access to and from the protected structure 1 is performed only in the connecting passage 3.

このような本実施例の構造により、航空機等の飛来物は、防護対象構造物１の前に防護構造物２へ衝突するため、航空機等の飛来物の防護対象構造物１への直接衝突を避けることができる。 Due to such a structure of this embodiment, a flying object such as an aircraft collides with the protected structure 2 before the protected structure 1, so that the flying object such as an aircraft directly collides with the protected structure 1. Can be avoided.

ここで、本実施例の連絡通路３は閉塞していないため、航空機等の飛来物が連絡通路３の近傍に衝突した場合は、連絡通路３の方向に沿って飛来物の破片が防護構造物２で囲まれたエリアに侵入する可能性がある。 Here, since the connecting passage 3 of the present embodiment is not blocked, when a flying object such as an aircraft collides with the vicinity of the connecting passage 3, debris of the flying object is a protective structure along the direction of the connecting passage 3. There is a possibility of invading the area surrounded by 2.

しかし、本実施例での連絡通路３は、その延長線上に防護対象構造物１は配置されていない（存在しない）ため、飛来物の破片が防護対象構造物１と衝突することはない。例え、連絡通路３に飛来物の破片が散乱していたとしても、連絡通路３に扉などの閉塞機構が存在しないため、閉塞機構を開けるための作業をすることなく、破片の撤去後すぐに出入することが可能である。 However, in the connecting passage 3 in this embodiment, since the protected structure 1 is not arranged (does not exist) on the extension line thereof, the fragments of the flying object do not collide with the protected structure 1. Even if fragments of flying objects are scattered in the connecting passage 3, since there is no closing mechanism such as a door in the connecting passage 3, there is no work to open the closing mechanism, and immediately after the fragments are removed. It is possible to go in and out.

このように、本実施例によれば、防護対象構造物１は防護構造物２に囲まれているため、防護対象構造物１に航空機等の飛来物が直接衝突することを回避でき、万が一、連絡通路３に飛来物やその破片が侵入したとしても、連絡通路３の延長線上に防護対象構造物１が存在しないため、防護対象構造物１に衝突することはない。 As described above, according to the present embodiment, since the protected structure 1 is surrounded by the protected structure 2, it is possible to prevent a flying object such as an aircraft from directly colliding with the protected structure 1 by any chance. Even if a flying object or its debris invades the connecting passage 3, the protected structure 1 does not collide with the protected structure 1 because the protected structure 1 does not exist on the extension line of the connecting passage 3.

また、連絡通路３に破片があったとしても、扉のような閉塞機構がないため、衝突後、防護対象構造物１へ出入する際に、その扉を開ける対応をする必要がなく、破片の撤去が完了すると同時に防護対象構造物１へ出入することが可能となる。 Further, even if there is a debris in the connecting passage 3, since there is no closing mechanism like a door, it is not necessary to open the door when entering or exiting the protected structure 1 after the collision, and the debris As soon as the removal is completed, it becomes possible to enter and exit the protected structure 1.

従って、本実施例では、防護対象構造物１に直接航空機等の飛来物が衝突することを回避しつつ、衝突後の防護対象構造物１へのアクセス性を低下させない防護構造を得ることができる。 Therefore, in the present embodiment, it is possible to obtain a protective structure that does not reduce the accessibility to the protected structure 1 after the collision while avoiding the direct collision of a flying object such as an aircraft with the protected structure 1. ..

図４に、本発明の防護構造の実施例２を示す。 FIG. 4 shows Example 2 of the protective structure of the present invention.

該図に示す本実施例の防護構造は、実施例１と略同様な構成であるが、実施例１と異なる点は、防護構造物２に複数（本実施例では４つ）の連絡通路３ａ、３ｂ、３ｃ、３ｄを形成したことである。 The protective structure of the present embodiment shown in the figure has substantially the same configuration as that of the first embodiment, but the difference from the first embodiment is that the protective structure 2 has a plurality of (four in this embodiment) connecting passages 3a. 3b, 3c, and 3d were formed.

このような本実施例の構成であっても、実施例１と同様な効果を得ることができることは勿論、防護構造物２に複数の連絡通路３ａ、３ｂ、３ｃ、３ｄを形成することで、アクセス性が更に向上する。 Even with such a configuration of this embodiment, it is possible to obtain the same effect as that of the first embodiment, and by forming a plurality of connecting passages 3a, 3b, 3c, and 3d in the protective structure 2, it is possible to obtain the same effect as that of the first embodiment. Accessibility is further improved.

図５に、本発明の防護構造の実施例３を示す。 FIG. 5 shows Example 3 of the protective structure of the present invention.

該図に示す本実施例の防護構造は、実施例１と略同様な構成であるが、実施例１と異なる点は、連絡通路３の傾斜している一方の防護構造物の壁２ｂの厚みが、対向している他方の防護構造物の壁２ｃの厚みより厚く形成されていることである。 The protective structure of the present embodiment shown in the figure has substantially the same configuration as that of the first embodiment, but the difference from the first embodiment is the thickness of the wall 2b of one of the inclined protective structures of the connecting passage 3. However, it is formed to be thicker than the thickness of the wall 2c of the other protective structure facing each other.

このような本実施例の構成であっても、実施例１と同様な効果を得ることができることは勿論、連絡通路３の傾斜している一方の防護構造物の壁２ｂの厚みを、対向している他方の防護構造物の壁２ｃの厚みより厚く形成することで、連絡通路３部分における防護構造物２の壁の強度が向上する。 Even with such a configuration of the present embodiment, it is possible to obtain the same effect as that of the first embodiment, and of course, the thickness of the wall 2b of one of the inclined protective structures of the connecting passage 3 is opposed to the thickness of the wall 2b. By forming the wall 2c thicker than the wall 2c of the other protective structure, the strength of the wall of the protective structure 2 in the connecting passage 3 portion is improved.

図６及び図７に、本発明の防護構造の実施例３を示す。 6 and 7 show Example 3 of the protective structure of the present invention.

該図に示す本実施例の防護構造は、実施例１と類似の構成であるが、実施例１と異なるところは、連絡通路３が防護構造物２の壁で形成され、この連絡通路３の延長線上に防護対象構造物１が存在しないことである。 The protective structure of the present embodiment shown in the figure has a structure similar to that of the first embodiment, except that the connecting passage 3 is formed by the wall of the protective structure 2 and the connecting passage 3 is different from the first embodiment. The protected structure 1 does not exist on the extension line.

具体的には、防護対象構造物１の全周を取り囲む防護構造物２の壁は不連続であり、防護構造物２の不連続部分の前面端部の壁２ｄと不連続部分の後面端部の壁２ｅが間隔を持って重なり合い、この重なり合った壁２ｄと２ｅの間隔部分が連絡通路３となるものである。 Specifically, the wall of the protective structure 2 surrounding the entire circumference of the protected structure 1 is discontinuous, and the wall 2d at the front end of the discontinuous portion of the protective structure 2 and the rear end of the discontinuous portion. The walls 2e of the wall 2e overlap each other with a gap, and the gap portion between the overlapping walls 2d and 2e becomes the connecting passage 3.

このような本実施例によれば、防護対象構造物１に直接航空機等の飛来物が衝突することを回避しつつ、衝突後の防護対象構造物１へのアクセス性を低下させないことは勿論、防護構造物２の壁が、どの部位においても（全長に亘って）一定の幅を確保することができ（即ち、実施例１では、連絡通路３の形成部分の防護構造物２の壁が、連絡通路３が斜めに形成されることにより薄くなる部分があるが、実施例４では、防護構造物２の壁は、どの部位においても一定の幅を確保できる）、局所的な剛性低下を避けることができる。 According to this embodiment, it goes without saying that the accessibility to the protected structure 1 after the collision is not deteriorated while avoiding the direct collision of a flying object such as an aircraft with the protected structure 1. The wall of the protective structure 2 can secure a constant width (over the entire length) at any site (that is, in Example 1, the wall of the protective structure 2 at the forming portion of the connecting passage 3). Although there is a portion that becomes thinner due to the connecting passage 3 being formed diagonally, in the fourth embodiment, the wall of the protective structure 2 can secure a certain width at any portion), and avoids a local decrease in rigidity. be able to.

また、連絡通路３に散乱した飛翔体の破片をクレーン等で上部から撤去することも可能となり（即ち、実施例４の構造では、連絡通路３の上方に空間Ｄがあり、この空間Ｄを利用して飛翔体の破片をクレーン等で上部から撤去することができる）、破片を撤去するための手段を増やすことができる。 Further, it is also possible to remove the fragments of the flying object scattered in the connecting passage 3 from the upper part by a crane or the like (that is, in the structure of the fourth embodiment, there is a space D above the connecting passage 3 and this space D is used. Then, the fragments of the flying object can be removed from the upper part with a crane or the like), and the means for removing the fragments can be increased.

なお、本実施例における防護構造物２は、その一部または全てを山や丘といった構造物としてもよく、連絡通路３についても直線でなく、曲線としてもよい。また、連絡通路３には航空機等の飛来物衝突時の衝撃に対して担保する必要がない扉等の閉塞機構があってもよい。 The protective structure 2 in the present embodiment may be a structure such as a mountain or a hill in part or in whole thereof, and the connecting passage 3 may be a curved line instead of a straight line. Further, the connecting passage 3 may have a closing mechanism such as a door that does not need to be secured against an impact at the time of a collision of a flying object such as an aircraft.

また、本発明は上記した実施例に限定されるものではなく、様々な変形例が含まれる。例えば、上記した実施例は本発明を分かり易く説明するために詳細に説明したものであり、必ずしも説明した全ての構成を備えるものに限定されるものではない。また、ある実施例の構成の一部を他の実施例の構成を置き換えることが可能であり、また、ある実施例の構成に他の実施例の構成を加えることも可能である。また、各実施例の構成の一部について、他の構成の追加・削除・置換をすることが可能である。 Further, the present invention is not limited to the above-described embodiment, and includes various modifications. For example, the above-described embodiment has been described in detail in order to explain the present invention in an easy-to-understand manner, and is not necessarily limited to the one including all the described configurations. Further, it is possible to replace a part of the configuration of one embodiment with the configuration of another embodiment, and it is also possible to add the configuration of another embodiment to the configuration of one embodiment. Further, it is possible to add / delete / replace a part of the configuration of each embodiment with another configuration.

１…防護対象構造物、２…防護構造物、２ａ…連絡通路が設けられる防護構造物の壁、２ｂ、２ｃ…防護構造物の壁、２ｄ…防護構造物の前面端部の壁、２ｅ…防護構造物の後面端部の壁、３、３ａ、３ｂ、３ｃ、３ｄ…連絡通路、４…地面。 1 ... Protected structure, 2 ... Protected structure, 2a ... Protected structure wall provided with a connecting passage, 2b, 2c ... Protected structure wall, 2d ... Protected structure front end wall, 2e ... The wall at the rear end of the protective structure, 3, 3a, 3b, 3c, 3d ... connecting passage, 4 ... ground.

Claims (4)

防護対象構造物と、該防護対象構造物よりも高く、かつ、前記防護対象構造物の全周を取り囲む防護構造物と、該防護構造物に形成され、前記防護対象構造物へ出入するための連絡通路とを備え、
前記連絡通路は、前記防護構造物と直交せず、かつ、前記防護構造物の一部に貫通穴を設けて形成されると共に、前記貫通穴の延長線上に前記防護対象構造物が存在してなく、しかも、前記連絡通路に段差がないように地面と同一高さで、前記連絡通路が設けられる前記防護構造物の壁に対して、前記連絡通路の延長線上に前記防護対象構造物が存在しない角度θだけ傾けて形成され、更に、前記連絡通路には開閉可能な扉が存在していないことを特徴とする防護構造。 A protected structure, a protective structure that is higher than the protected structure and surrounds the entire circumference of the protected structure, and a protective structure formed on the protected structure to enter and exit the protected structure. Equipped with a connecting passage,
The connecting passage is not orthogonal to the protective structure, is formed by providing a through hole in a part of the protective structure, and the protected structure is present on an extension line of the through hole. Moreover, the protected structure exists on the extension line of the connecting passage with respect to the wall of the protective structure in which the connecting passage is provided at the same height as the ground so that the connecting passage does not have a step. A protective structure characterized in that it is formed at an angle θ that does not exist, and that there is no door that can be opened and closed in the connecting passage . 請求項１に記載の防護構造において、
前記連絡通路は、前記防護構造物に複数形成されていることを特徴とする防護構造。 In the protective structure according to claim 1,
The connecting passage is a protective structure characterized in that a plurality of the connecting passages are formed in the protective structure. 請求項１又は２に記載の防護構造において、
前記連絡通路の傾斜している一方の前記防護構造物の壁の厚みが、対向している他方の前記防護構造物の壁の厚みより厚く形成されていることを特徴とする防護構造。 In the protective structure according to claim 1 or 2 .
A protective structure characterized in that the wall thickness of one of the inclined protective structures of the connecting passage is formed to be thicker than the thickness of the wall of the other protective structure facing the other. 請求項１乃至３のいずれか１項に記載の防護構造において、
前記防護対象構造物は、原子炉建屋であることを特徴とする防護構造。 In the protective structure according to any one of claims 1 to 3 ,
The protected structure is a protected structure characterized by being a reactor building.
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JPS59159091A (en) * 1983-03-02 1984-09-08 株式会社日立製作所 Rotary shielding door
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US20040050014A1 (en) 2002-09-12 2004-03-18 Lisa Steven G. Passive aerial protection system
JP2010526954A (en) 2007-05-15 2010-08-05 ヘスコ バスチョン リミテッド Protective shelter
JP2010095884A (en) 2008-10-15 2010-04-30 Toshiba Corp Protective structure
CN103850483A (en) 2013-04-02 2014-06-11 中国核电工程有限公司 Main machine hall group arrangement method of nuclear power plant
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