JP6841455B1

JP6841455B1 - Floating structure

Info

Publication number: JP6841455B1
Application number: JP2020021824A
Authority: JP
Inventors: 稔落合
Original assignee: 特許業務法人真菱国際特許事務所
Priority date: 2020-02-12
Filing date: 2020-02-12
Publication date: 2021-03-10
Anticipated expiration: 2040-02-12
Also published as: JP2021127587A

Abstract

【課題】調整池の機能を損なうことなく、低コストで且つ調整池の広さを屋外施設として最大限に利用することができる浮上構造物を提供する。【解決手段】調整池１に設置され、出水時の水位の上昇に伴って浮上すると共に特定の屋外施設１１として利用される浮上構造物１０であって、表面２１ａが屋外施設の地盤面を構成すると共に、調整池１の広さに合致させた地盤部２１と、地盤部２１の下側に配設され、地盤部２１を浮上させるフロート部２２と、調整池１の底面３ａに立設され、地盤部２１の浮上をガイドする複数のガイド支柱２３と、を備え、非出水時における地盤部２１の表面２１ａは、調整池１の天端面２ａと略面一に配設されている。【選択図】図１PROBLEM TO BE SOLVED: To provide a floating structure capable of maximizing the use of the area of a regulating pond as an outdoor facility at low cost without impairing the function of the regulating pond. SOLUTION: The floating structure 10 is installed in a regulating pond 1 and floats as the water level rises at the time of flooding and is used as a specific outdoor facility 11, and a surface 21a constitutes the ground surface of the outdoor facility. At the same time, the ground portion 21 that matches the size of the regulating pond 1, the float portion 22 that is arranged under the ground portion 21 and raises the ground portion 21, and the bottom surface 3a of the regulating pond 1 are erected. A plurality of guide columns 23 for guiding the ascent of the ground portion 21 are provided, and the surface 21a of the ground portion 21 at the time of non-flooding is arranged substantially flush with the top end surface 2a of the regulating reservoir 1. [Selection diagram] Fig. 1

Description

本発明は、調整池に設置され、特定の屋外施設に供される浮上構造物に関する。 The present invention relates to a floating structure installed in a regulating pond and provided for a specific outdoor facility.

従来、この種の浮上構造物として、調整池に設置された浮上性地盤が知られている（特許文献１参照）。
この調整池には、地下貯水槽が設けられており、地下貯水槽の上部には、浮上性地盤および浮上性地盤の浮上を案内する複数本のガイドが設けられている。浮上性地盤は、比重が１以下のものであり、その上部は駐車場や公園として利用可能となっている。数年に一度の豪雨では、雨水を地下貯水槽に貯水し、数十年に一度の豪雨では、雨水を地下貯水槽に貯水すると共に、地下貯水槽上に溜まった雨水により浮上性地盤の浮上させるようにしている。この浮上性地盤により、調整池の上面を恒久的に利用可能なものとしている。 Conventionally, as a floating structure of this type, a floating ground installed in a regulating pond is known (see Patent Document 1).
An underground water tank is provided in this regulating pond, and a plurality of guides for guiding the floating ground and the floating of the floating ground are provided in the upper part of the underground water tank. The buoyant ground has a specific gravity of 1 or less, and the upper part of the ground can be used as a parking lot or a park. In heavy rains once every few years, rainwater is stored in the underground water tank, and in heavy rains once every few decades, rainwater is stored in the underground water tanks and the buoyant ground rises due to the rainwater collected on the underground water tanks. I try to let you. This buoyant ground makes the upper surface of the regulating pond permanently available.

特開２００４−３２４１２７号公報Japanese Unexamined Patent Publication No. 2004-324127

このような従来の技術では、浮上性地盤が調整池に設けた地下貯水槽の上面に設置されているため、外観上の浮上性地盤は、調整池の池底に低く設置された形態となっている。このため、浮上性地盤を例えば駐車場として利用する場合には、調整池の堤部（天端部）に公道と駐車場とを連絡する下り傾斜の車路を設置する必要があり、全体として設置コストが嵩む問題があった。また、駐車場等の面積が、調整池の底面の面積で規制されてしまう問題があった。 In such a conventional technique, the buoyant ground is installed on the upper surface of the underground water tank provided in the regulating pond, so that the buoyant ground on the outside is installed low on the bottom of the regulating pond. ing. For this reason, when using the floating ground as a parking lot, for example, it is necessary to install a downhill lane connecting the public road and the parking lot at the bank (top end) of the regulating pond, and as a whole There was a problem that the installation cost was high. In addition, there is a problem that the area of the parking lot or the like is regulated by the area of the bottom surface of the regulating pond.

本発明は、調整池の機能を損なうことなく、低コストで且つ調整池の広さを屋外施設として最大限に利用することができる浮上構造物を提供することを課題としている。 An object of the present invention is to provide a floating structure that can maximize the use of the area of the regulating pond as an outdoor facility at low cost without impairing the function of the regulating pond.

本発明の浮上構造物は、調整池に設置され、出水時の水位の上昇に伴って浮上すると共に特定の屋外施設として利用される浮上構造物であって、表面が屋外施設の地盤面を構成すると共に、調整池の広さに合致させた地盤部と、地盤部の下側に配設され、地盤部を浮上させるフロート部と、調整池の底面に立設され、地盤部の浮上をガイドする複数のガイド支柱と、を備え、非出水時における地盤部の表面は、調整池の天端面と略面一に配設されていることを特徴とする。 The floating structure of the present invention is a floating structure that is installed in a regulating reservoir, floats as the water level rises at the time of flooding, and is used as a specific outdoor facility, and its surface constitutes the ground surface of the outdoor facility. At the same time, the ground part that matches the size of the regulating pond, the float part that is arranged under the ground part and raises the ground part, and the float part that is erected on the bottom of the regulating pond to guide the floating of the ground part. It is characterized in that it is provided with a plurality of guide columns, and the surface of the ground portion when the water is not flooded is arranged substantially flush with the top surface of the regulating reservoir.

この構成によれば、出水時において調整池に水が流入すると、フロート部により地盤部が浮上する。この場合、地盤部は、ガイド支柱により浮上をガイドされるため、調整池の外に流されることがなく、且つ水が引くと元の位置に復帰する。したがって、調整池としての機能を損なうことなく、地盤部を介して調整池を特定の屋外施設として活用することができる。また、地盤部の表面が調整池の天端面と略面一に配設され、且つ地盤部が調整池の広さに合致しているため、調整池の天端部における面積を、ほぼ地盤部の面積とすることができる共に、地盤部と調整池の天端部との行き来を容易に行うことができる。したがって、低コストで且つ調整池の広さを屋外施設として最大限に利用することができる。 According to this configuration, when water flows into the regulating pond at the time of flooding, the ground portion rises due to the float portion. In this case, since the ground portion is guided by the guide support column, it does not flow out of the regulating pond and returns to its original position when water is drawn. Therefore, the regulating pond can be utilized as a specific outdoor facility through the ground portion without impairing the function as the regulating pond. Further, since the surface of the ground portion is arranged substantially flush with the top surface of the regulating pond and the ground portion matches the size of the regulating pond, the area at the top end of the regulating pond is almost the same as the ground portion. The area can be set to the above, and the ground and the top of the regulating pond can be easily moved back and forth. Therefore, it is possible to make maximum use of the area of the regulating pond as an outdoor facility at low cost.

この場合、各ガイド支柱は、調整池の底面に立設され、地盤部を支持する支柱部と、支柱部の上側に連なり地盤部の浮上をガイドするガイド部と、を有していることが好ましい。 In this case, each guide strut is erected on the bottom surface of the regulating pond and has a strut portion that supports the ground portion and a guide portion that is connected to the upper side of the strut portion and guides the ascent of the ground portion. preferable.

この構成によれば、ガイド支柱の支柱部により、地盤部の表面と調整池の天端面と略面一となるように地盤部を直接支持することができる。これにより、フロート部に地盤部を支持する機能を持たせる必要が無く、フロート部の材質や構造の自由度を高めることができる。また、ガイド支柱に、地盤部を支持する機能と、地盤部の浮上をガイドする機能とを併せ持たせることができ、構造を単純化することができる。 According to this configuration, the ground portion can be directly supported by the strut portion of the guide strut so that the surface of the ground portion and the top surface of the regulating pond are substantially flush with each other. As a result, it is not necessary for the float portion to have a function of supporting the ground portion, and the degree of freedom in the material and structure of the float portion can be increased. Further, the guide column can have both a function of supporting the ground portion and a function of guiding the floating of the ground portion, so that the structure can be simplified.

また、調整池の底面に着地して地盤部を支持する複数の支持脚部を、更に備えることが好ましい。 Further, it is preferable to further provide a plurality of support legs that land on the bottom surface of the regulating pond and support the ground portion.

支持脚部により、地盤部の表面と調整池の天端面と略面一となるように地盤部を直接支持することができる。これにより、フロート部に地盤部を支持する機能を持たせる必要が無く、フロート部の材質や構造の自由度を高めることができる。
なお、支持脚部は、地盤部に固定されていることが好ましい。 The support legs can directly support the ground so that the surface of the ground is substantially flush with the top surface of the regulating pond. As a result, it is not necessary for the float portion to have a function of supporting the ground portion, and the degree of freedom in the material and structure of the float portion can be increased.
The support legs are preferably fixed to the ground.

これらの場合、フロート部の下端面と調整池の底面との間に所定の間隙が生ずるように、フロート部が地盤部に取り付けられていることが好ましい。 In these cases, it is preferable that the float portion is attached to the ground portion so that a predetermined gap is formed between the lower end surface of the float portion and the bottom surface of the regulating pond.

この構成によれば、フロート部の下端面と調整池の底面との間の所定の間隙により、調整池の底面に溜まった汚泥等を取り除くことができる。これにより、調整池の貯水機能を適切に維持することができる。また、出水時において調整池に水が勢い良く流入することがあっても、フロート部に浮力が生ずるのが、調整池にある程度の水が溜まってからとなる。このため、地盤部を水平に且つ安定に浮上させることができる。また、出水の程度が少ない場合には、地盤部を浮上させることなく出水を許容（貯水）することができる。 According to this configuration, sludge and the like accumulated on the bottom surface of the regulating pond can be removed by a predetermined gap between the lower end surface of the float portion and the bottom surface of the regulating pond. As a result, the water storage function of the regulating pond can be properly maintained. Further, even if water may flow into the regulating pond vigorously at the time of flooding, buoyancy is generated in the float portion only after a certain amount of water has accumulated in the regulating pond. Therefore, the ground portion can be floated horizontally and stably. Further, when the degree of water discharge is small, water discharge can be allowed (water storage) without raising the ground portion.

また、地盤部の周縁部と調整池の天端部との間に渡したブリッジを、更に備え、ブリッジは、地盤部側の端部が地盤部に回動自在に支持されていることが好ましい。 Further, it is preferable that a bridge passed between the peripheral edge portion of the ground portion and the top end portion of the regulating pond is further provided, and the end portion of the bridge on the ground portion side is rotatably supported by the ground portion. ..

この構成によれば、ブリッジにより、地盤部と調整池の天端部との間において、人や車両の移動を円滑に行うことができる。また、出水時に、ブリッジを浮上する地盤部に回動自在に支持しておくことができるため、ブリッジの損壊を防止することができる。さらに、出水が治まって地盤部が元の位置に復帰したときに、同時にブリッジも元の位置に復帰させることができる。 According to this configuration, the bridge enables smooth movement of people and vehicles between the ground portion and the top end portion of the regulating pond. Further, since the bridge can be rotatably supported by the ground portion that floats when water flows out, damage to the bridge can be prevented. Further, when the flooding has subsided and the ground portion returns to the original position, the bridge can also be returned to the original position at the same time.

一方、地盤部の周縁部と調整池の天端部との間隙を覆うネット状部材を、更に備えることが好ましい。 On the other hand, it is preferable to further provide a net-like member that covers the gap between the peripheral edge of the ground portion and the top end of the regulating pond.

この構成によれば、ネット状部材を、落下防止用の人的な防護ネットとして機能させることができるだけでなく、地盤部と調整池の天端部との間隙から、ごみ等が調整池内に入り込むのを有効に防止することができる。 According to this configuration, not only can the net-like member function as a human protective net for fall prevention, but also dust and the like can enter the regulating pond through the gap between the ground and the top of the regulating pond. Can be effectively prevented.

また、屋外施設が、駐車場であることが好ましい。 Moreover, it is preferable that the outdoor facility is a parking lot.

この構成によれば、非出水時には、調整池（浮上構造物）を駐車場として活用することができる。一方、出水時には、駐車場（地盤部）が浮上するため、地盤部上の人間や自動車を水害から守ることができ、且つ調整池の機能を適切に維持することができる。 According to this configuration, the regulating pond (floating structure) can be used as a parking lot when there is no flood. On the other hand, since the parking lot (ground portion) rises at the time of flooding, it is possible to protect people and automobiles on the ground portion from flood damage, and it is possible to properly maintain the function of the regulating pond.

実施形態に係る浮上構造物を模式的に表した図であって、非出水時の模式図（ａ）、および出水時の模式図（ｂ）である。It is a figure which represented typically the floating structure which concerns on embodiment, and is the schematic diagram (a) at the time of non-flooding, and the schematic diagram (b) at the time of flooding. 浮上構造物の全体平面図である。It is the whole plan view of the levitation structure. 浮上構造物の部分拡大平面図（ａ）、および部分拡大側面図（ｂ）である。It is a partially enlarged plan view (a) and a partially enlarged side view (b) of a levitation structure. 浮上構造物におけるガイド支柱廻りの部分裁断平面図（ａ）、および部分裁断側面図（ｂ）である。It is a partial cut plan view (a) and a partial cut side view (b) around a guide column in a buoyant structure. 浮上構造物におけるブリッジ廻りの平面図（ａ）、および側面図（ｂ）である。It is a top view (a) and a side view (b) around a bridge in a floating structure. 浮上する浮上構造物とブリッジとの関係を表した側面図であって、非浮上時の図（ａ）、浮上開始時の図（ｂ）、浮上時の図（ｃ）である。It is a side view which showed the relationship between the levitation structure and a bridge, and is the figure (a) at the time of non-levitation, the figure (b) at the start of levitation, and the figure (c) at the time of levitation.

以下、添付の図面を参照して、本発明の一実施形態に係る浮上構造物について説明する。この浮上構造物は、住宅団地等の一画に設けられる調整池に設置されるものであり、調整池の機能を損なうことなく、調整池を駐車場として活用せんとするものである。このため、浮上構造物の上面は、調整池の全域において駐車場スペースを構成する一方、浮上構造物自体は、出水時に調整池に流入した水により浮上するようになっている。 Hereinafter, the floating structure according to the embodiment of the present invention will be described with reference to the accompanying drawings. This floating structure is installed in a regulating pond provided in a section of a residential complex or the like, and the regulating pond is intended to be used as a parking lot without impairing the function of the regulating pond. Therefore, the upper surface of the floating structure constitutes a parking lot space in the entire area of the regulating pond, while the floating structure itself is floated by the water flowing into the regulating pond at the time of flooding.

図１は、実施形態に係る浮上構造物の模式図である。同図に示すように、この浮上構造物１０は、掘込み形式の調整池１に設置され、その上部に屋外施設としての駐車場１１が構成されている。定常時（非出水時）における浮上構造物１０は、路面（地盤面）となる上面２１ａが調整池１の天端面２ａと略面一に配設され、開放的な駐車場１１を構成している（図１（ａ）参照）。一方、出水時における浮上構造物１０は、調整池１の貯水機能に影響を与えないように、調整池１に流入した水により車両Ｓを搭載したまま浮上する（図１（ｂ）参照）。 FIG. 1 is a schematic view of a floating structure according to an embodiment. As shown in the figure, the floating structure 10 is installed in a digging-type regulating pond 1, and a parking lot 11 as an outdoor facility is configured above the regulating pond 1. In the floating structure 10 at regular times (when not flooded), the upper surface 21a serving as the road surface (ground surface) is arranged substantially flush with the top end surface 2a of the regulating pond 1 to form an open parking lot 11. (See Fig. 1 (a)). On the other hand, the floating structure 10 at the time of flooding floats with the vehicle S mounted on the regulating pond 1 by the water flowing into the regulating pond 1 so as not to affect the water storage function of the regulating pond 1.

調整池１は、底面３ａ（池底）から天端面２ａまでの高さを貯水高とする掘込み式のものであり、底面３ａが底版コンクリート３等で形成され、各法面４ａがブロック積み擁壁４等で形成されている。調整池１の天端部２と浮上構造物１０の周縁部（後述する地盤部２１の周縁部２１ｂ）とは、四周に亘り間隙を存して離隔されている。調整池１の天端部２には、駐車場１１の出入り口を除き防護フェンス１３が設けられている。また、図示では省略したが、調整池１の底面３ａには適宜、側溝が設けられており、側溝は放流管を介して河川に接続されている。 The regulating pond 1 is a digging type in which the height from the bottom surface 3a (pond bottom) to the top end surface 2a is the water storage height, the bottom surface 3a is formed of bottom slab concrete 3 or the like, and each slope 4a is stacked in blocks. It is formed by a retaining wall 4 and the like. The top end portion 2 of the regulating pond 1 and the peripheral edge portion of the floating structure 10 (the peripheral edge portion 21b of the ground portion 21 described later) are separated from each other with gaps over four circumferences. A protective fence 13 is provided at the top end 2 of the regulating pond 1 except for the entrance / exit of the parking lot 11. Further, although omitted in the drawing, a gutter is appropriately provided on the bottom surface 3a of the regulating pond 1, and the gutter is connected to the river via a discharge pipe.

図１、図２および図３に示すように、浮上構造物１０は、表面２１ａが駐車場１１の路面（地盤面）を構成すると共に、調整池１の広さに合致させた地盤部２１と、地盤部２１の下側に配設され、地盤部２１を浮上させるフロート部２２と、調整池１の底面３ａに立設され、地盤部２１の浮上をガイドする複数のガイド支柱２３と、を備えている。また、浮上構造物１０は、地盤部２１の周縁部２１ｂと調整池１の天端部２との間に渡した２つのブリッジ２５と、地盤部２１の周縁部２１ｂと調整池１の天端部２との間隙を覆うネット状部材２６と、を備えている。 As shown in FIGS. 1, 2 and 3, the surface 21a of the floating structure 10 constitutes the road surface (ground surface) of the parking lot 11, and the surface 21a and the ground portion 21 are matched to the size of the regulating pond 1. , A float portion 22 arranged on the lower side of the ground portion 21 to raise the ground portion 21, and a plurality of guide columns 23 erected on the bottom surface 3a of the regulating pond 1 to guide the floating of the ground portion 21. I have. Further, the floating structure 10 includes two bridges 25 passed between the peripheral edge portion 21b of the ground portion 21 and the top end portion 2 of the regulating pond 1, and the peripheral edge portion 21b of the ground portion 21 and the top end of the regulating pond 1. A net-like member 26 that covers a gap with the portion 2 is provided.

地盤部２１は、駐車場１１の主体を為す路面部３１と、路面部３１を支持する鉄骨構造の地盤構造部３２と、を有している（図３（ａ）および（ｂ）参照）。路面部３１は、表面２１ａに滑り止めを施した鋼板等で形成されている。また、路面部３１の表面２１ａ（路面）には、線引き表示により、複数の駐車マス３３や車路３４が画成されている（図２参照）。実施形態の駐車場１１では、一方のブリッジ２５を入口（「ＩＮ」）とし、他方のブリッジ２５を出口（「ＯＵＴ」）として一方通行の車路３４が形成され、また車路３４に沿って駐車スペースである複数の駐車マス３３が形成されている。 The ground portion 21 has a road surface portion 31 that mainly forms the parking lot 11 and a steel-framed ground structure portion 32 that supports the road surface portion 31 (see FIGS. 3A and 3B). The road surface portion 31 is formed of a steel plate or the like having a non-slip surface 21a. Further, on the surface 21a (road surface) of the road surface portion 31, a plurality of parking masses 33 and lanes 34 are defined by a line drawing display (see FIG. 2). In the parking lot 11 of the embodiment, a one-way lane 34 is formed with one bridge 25 as an entrance (“IN”) and the other bridge 25 as an exit (“OUT”), and along the lane 34. A plurality of parking spaces 33, which are parking spaces, are formed.

この場合、地盤部２１の路面（表面２１ａ）と調整池１の天端面２ａとは、略面一に配設され、路面と天端面２ａとを繋ぐブリッジ２５の表面も、これら路面および天端面２ａと略面一に配設されている（図１（ａ）参照）。したがって、公道５から駐車場１１に出入りする車両Ｓは、傾斜した車路３４（路面）を走行することなく駐車可能となる。また、実施形態の駐車場１１は、入口および出口が公道５と最短距離で結ばれている（図２参照）。 In this case, the road surface (surface 21a) of the ground portion 21 and the top surface 2a of the regulating pond 1 are arranged substantially flush with each other, and the surface of the bridge 25 connecting the road surface and the top surface 2a is also the road surface and the top surface. It is arranged substantially flush with 2a (see FIG. 1 (a)). Therefore, the vehicle S entering and exiting the parking lot 11 from the public road 5 can be parked without traveling on the inclined lane 34 (road surface). Further, in the parking lot 11 of the embodiment, the entrance and the exit are connected to the public road 5 at the shortest distance (see FIG. 2).

図３および図４に示すように、地盤構造部３２は、型鋼３２ａを縦横に組んだ鉄骨構造を有しており、上記の複数のガイド支柱２３により、地盤部２１の上面２１ａが調整池１の天端面２ａと略面一になるように支持されている（図３（ｂ）参照）。また、各ガイド支柱２３と地盤構造部３２（型鋼３２ａ）との接点には、支柱係合部３６が配設されている。支柱係合部３６は、角筒状の係合部本体３７と、係合部本体３７の内側に取り付けられたスライド凸部３８と、を有している（図４（ａ）および（ｂ）参照）。 As shown in FIGS. 3 and 4, the ground structure portion 32 has a steel frame structure in which shaped steel 32a is vertically and horizontally assembled, and the upper surface 21a of the ground portion 21 is adjusted by the regulating pond 1 by the plurality of guide columns 23 described above. It is supported so as to be substantially flush with the top surface 2a of the above (see FIG. 3B). Further, a strut engaging portion 36 is arranged at a contact point between each guide strut 23 and the ground structure portion 32 (formal steel 32a). The strut engaging portion 36 has a square tubular engaging portion main body 37 and a slide convex portion 38 attached to the inside of the engaging portion main body 37 (FIGS. 4A and 4B). reference).

係合部本体３７は鋼材等で角筒状に形成され、その４つの外面には、地盤構造部３２の縦横の型鋼３２ａが突き当てられるようにして溶着されている。すなわち、複数の係合部本体３７は、地盤構造部３２における鉄骨構造の一部を構成し、各係合部本体３７が、後述するガイド支柱２３の支柱部４１上に着座することにより、地盤構造部３２（地盤部２１）がガイド支柱２３に支持されるようになっている。 The engaging portion main body 37 is formed of a steel material or the like in a square tubular shape, and the four outer surfaces thereof are welded so that the vertical and horizontal shaped steels 32a of the ground structure portion 32 are abutted against each other. That is, the plurality of engaging portion main bodies 37 form a part of the steel frame structure in the ground structure portion 32, and each engaging portion main body 37 is seated on the support column 41 of the guide support column 23 described later, thereby forming the ground. The structural portion 32 (ground portion 21) is supported by the guide support column 23.

一方、スライド凸部３８は合成樹脂等で形成され、角形の外周部で係合部本体３７に固定され、断面が半円形となる丸形の内周部で、後述するガイド支柱２３のガイド部４２にスライド自在に係合している。フロート部２２により地盤構造部３２（地盤部２１）が浮上するときに、スライド凸部３８がガイド支柱２３のガイド部４２に摺接し、地盤部２１の浮上が案内される。この場合、ガイド部４２に対しスライド凸部３８が、線接触的に摺接するため、スライド凸部３８が「カシグ」ことがなく、地盤部２１は水平姿勢を維持しつつ安定に浮上し、また元の位置に戻る。 On the other hand, the slide convex portion 38 is a round inner peripheral portion formed of synthetic resin or the like, fixed to the engaging portion main body 37 at the outer peripheral portion of the square shape, and has a semicircular cross section, and is a guide portion of the guide support column 23 described later. It is slidably engaged with 42. When the ground structure portion 32 (ground portion 21) is lifted by the float portion 22, the slide convex portion 38 is in sliding contact with the guide portion 42 of the guide support column 23, and the floating of the ground portion 21 is guided. In this case, since the slide convex portion 38 slides in line contact with the guide portion 42, the slide convex portion 38 does not "cash", and the ground portion 21 rises stably while maintaining the horizontal posture. Return to the original position.

複数のガイド支柱２３は、調整池１内において、縦横に所定ピッチ（スパン）で配設されている（図２参照）。各ガイド支柱２３は、調整池１の底面３ａに立設した支柱部４１と、支柱部４１の上側に連なり地盤部２１の浮上をガイドするガイド部４２と、を有している。支柱部４１およびガイド部４２は、鋼管杭に使用する鋼管等で形成することが好ましい。例えば、径５００ｍｍの鋼管を支柱部４１とし、径３００ｍｍの鋼管をガイド部４２とし、これらを連結（溶着）してガイド支柱２３を構成する。 The plurality of guide columns 23 are arranged vertically and horizontally at a predetermined pitch (span) in the regulating pond 1 (see FIG. 2). Each guide strut 23 has a strut portion 41 erected on the bottom surface 3a of the regulating pond 1 and a guide portion 42 connected to the upper side of the strut portion 41 to guide the ascent of the ground portion 21. The strut portion 41 and the guide portion 42 are preferably formed of steel pipes or the like used for steel pipe piles. For example, a steel pipe having a diameter of 500 mm is used as a support column 41, a steel pipe having a diameter of 300 mm is used as a guide portion 42, and these are connected (welded) to form a guide support column 23.

上述のように、支柱部４１の上端に地盤構造部３２の支柱係合部３６が着座することにより、地盤部２１およびこれに垂設したフロート部２２がガイド支柱２３に支持される。そして、この支持状態において、地盤部２１の上面２１ａが調整池１の天端面２ａと略面一になり、またフロート部２２の下端面２２ａが調整池１の底面３ａから浮いた状態となる（図３（ｂ）参照）。すなわち、ガイド支柱２３に支持されたフロート部２２の下端面２２ａと調整池１の底面３ａとの間に、少なくとも３０〜５０ｃｍ程度の清掃用の間隙が生ずるようになっている。 As described above, the strut engaging portion 36 of the ground structure portion 32 is seated on the upper end of the strut portion 41, so that the ground portion 21 and the float portion 22 suspended from the ground portion 21 are supported by the guide strut 23. Then, in this support state, the upper surface 21a of the ground portion 21 is substantially flush with the top end surface 2a of the regulating pond 1, and the lower end surface 22a of the float portion 22 is in a state of floating from the bottom surface 3a of the regulating pond 1. See FIG. 3 (b)). That is, a gap for cleaning of at least about 30 to 50 cm is formed between the lower end surface 22a of the float portion 22 supported by the guide support column 23 and the bottom surface 3a of the regulating pond 1.

これにより、水が引いた後に調整池１の底面３ａに残った汚泥を除去できるようにしている。また、出水量が少ない場合には、地盤部２１を浮上させることなく、ある程度の貯水が行えるようになっている。 This makes it possible to remove the sludge remaining on the bottom surface 3a of the regulating pond 1 after the water has been drained. Further, when the amount of water discharged is small, water can be stored to some extent without raising the ground portion 21.

ガイド支柱２３は、調整池１の底面３ａに立設するが、調整池１が既設のものである場合には、ガイド支柱２３廻りの底版コンクリート３を斫って、新たにガイド支柱２３用の独立基礎６を形成することが好ましい（図３（ｂ）参照）。そして、ガイド支柱２３の天端面２ａからの高さを、洪水のみを考慮する場合には５ｍ程度とし、津波をも考慮する場合には１０ｍ程度とする。 The guide support column 23 is erected on the bottom surface 3a of the regulating pond 1, but if the regulating pond 1 is an existing one, the bottom slab concrete 3 around the guide support column 23 is scraped and newly used for the guide support column 23. It is preferable to form the independent foundation 6 (see FIG. 3 (b)). The height of the guide column 23 from the top surface 2a is set to about 5 m when considering only floods and about 10 m when considering tsunamis.

なお、実施形態のガイド支柱２３は、地盤部２１およびフロート部２２を支持する構造（支柱部４１）と、これらの浮上をガイドする構造（ガイド部４２）と、を併せ持たせた構造としているが、これら支持構造とガイド構造とを別々の構成としてもよい。かかる場合の支持構造は、地盤部２１（地盤構造部３２）に取り付けられ、縦横に所定ピッチ（スパン）で配置した複数の支持脚部２８（図３（ｂ）に仮想線で図示）であることが好ましい。また、複数のガイド支柱２３と複数の支持脚部２８とを混在させて、支持構造およびガイド構造を構成してもよい。 The guide column 23 of the embodiment has a structure in which a structure for supporting the ground portion 21 and the float portion 22 (post portion 41) and a structure for guiding the floating of these (guide portion 42) are combined. However, these support structures and guide structures may be configured separately. The support structure in such a case is a plurality of support legs 28 (shown by virtual lines in FIG. 3B) attached to the ground portion 21 (ground structure portion 32) and arranged vertically and horizontally at a predetermined pitch (span). Is preferable. Further, the support structure and the guide structure may be formed by mixing the plurality of guide columns 23 and the plurality of support legs 28.

図３に示すように、フロート部２２は、鉄骨構造の地盤構造部３２における縦横の型鋼３２ａを区画基準にした複数の部分フロート４６で構成されている。複数の部分フロート４６は、上端部で地盤構造部３２に取り付けられると共に、図示では省略したが、隣接する部分フロート４６同士は相互に連結されている。各部分フロート４６は、発砲スチロールや発泡ウレタンの樹脂独立発泡体や注入型の樹脂独立発泡体で構成され、或いはＦＲＰ（繊維強化プラスチック）製のエアータンク等で構成されている。 As shown in FIG. 3, the float portion 22 is composed of a plurality of partial floats 46 based on the vertical and horizontal shaped steel 32a in the ground structure portion 32 of the steel frame structure. The plurality of partial floats 46 are attached to the ground structure portion 32 at the upper end portion, and although omitted in the drawing, adjacent partial floats 46 are connected to each other. Each partial float 46 is made of foamed styrene or urethane foam resin independent foam, injection type resin independent foam, or an air tank made of FRP (fiber reinforced plastic) or the like.

上述のように、フロート部２２の下端面２２ａと調整池１の底面３ａとの間に清掃用の間隙が生ずるようにしているが、これに加えて、フロート部２２内に清掃のための作業スペース４７を設けるようにしている。例えば、作業スペース４７は、フロート部２２内に形成した縦横の通路の形態を有している（図３（ｂ）参照）。これにより、水が引いた後に調整池１の底面３ａに残った汚泥等を円滑に除去できるようにしている。 As described above, a gap for cleaning is formed between the lower end surface 22a of the float portion 22 and the bottom surface 3a of the regulating pond 1, but in addition to this, the work for cleaning is performed in the float portion 22. Space 47 is provided. For example, the work space 47 has the form of vertical and horizontal passages formed in the float portion 22 (see FIG. 3B). As a result, sludge and the like remaining on the bottom surface 3a of the regulating pond 1 after the water has been drained can be smoothly removed.

図３（ａ）および（ｂ）に示すように、地盤部２１の周縁部２１ｂと調整池１の天端部２との間には、所定の幅（５０ｃｍ程度）の間隙が設けられており、この間隙を利用して出水や駐車場１１の雨水を、調整池１内に導くようになっている。そして、駐車場１１の入口および出口には、この間隙を跨ぐようにブリッジ２５がそれぞれ設けられ、駐車場１１の入口および出口以外の部分には、この間隙を覆うようにネット状部材２６が設けられている（図２参照）。 As shown in FIGS. 3A and 3B, a gap having a predetermined width (about 50 cm) is provided between the peripheral edge portion 21b of the ground portion 21 and the top end portion 2 of the regulating pond 1. , This gap is used to guide flood water and rainwater from the parking lot 11 into the regulating pond 1. A bridge 25 is provided at the entrance and the exit of the parking lot 11 so as to straddle the gap, and a net-like member 26 is provided at a portion other than the entrance and the exit of the parking lot 11 so as to cover the gap. (See Fig. 2).

図５に示すように、各ブリッジ２５は、それぞれ地盤部２１の周縁部２１ｂと調整池１の天端部２との間隙を跨いで、駐車場１１側の車路３４と公道５側の車路３４とを結んでいる。ブリッジ２５は、縦横のリブ材５２で補強された橋上路面部５３を有するブリッジ本体５１と、ブリッジ本体５１の駐車場１１側の端部を地盤部２１に回動自在に連結した左右一対のヒンジ部５４と、ブリッジ本体５１の公道５側に設けた左右一対の車輪５５と、を備えている。すなわち、ブリッジ本体５１は、駐車場１１側の端部を地盤部２１に回動自在に支持され、公道５側の端部を調整池１の天端部２に転動自在に支持されている。 As shown in FIG. 5, each bridge 25 straddles the gap between the peripheral edge portion 21b of the ground portion 21 and the top end portion 2 of the regulating pond 1, and the vehicle on the lane 34 on the parking lot 11 side and the vehicle on the public road 5 side. It connects to the road 34. The bridge 25 is a pair of left and right hinges in which a bridge main body 51 having a bridge road surface portion 53 reinforced with vertical and horizontal rib members 52 and an end portion of the bridge main body 51 on the parking lot 11 side are rotatably connected to the ground portion 21. A portion 54 and a pair of left and right wheels 55 provided on the public road 5 side of the bridge main body 51 are provided. That is, in the bridge body 51, the end portion on the parking lot 11 side is rotatably supported by the ground portion 21, and the end portion on the public road 5 side is rotatably supported by the top end portion 2 of the regulating pond 1. ..

各ヒンジ部５４は、左右最外端部のリブ材５２の延長部分により形成され、ヒンジ軸５４ａを介して、地盤部２１の型鋼３２ａに回動自在に連結されている。また、地盤部２１の型鋼３２ａには、ストッパピン５６が設けられており、ブリッジ本体５１の回動角度が規制されるようになっている（図６（ｃ）参照）。車輪５５は、鋼製のものであって、最外端部のリブ材５２に取り付けられている。 Each hinge portion 54 is formed by an extension portion of the rib member 52 at the left and right outermost ends, and is rotatably connected to the structural steel 32a of the ground portion 21 via the hinge shaft 54a. Further, the shaped steel 32a of the ground portion 21 is provided with a stopper pin 56 so that the rotation angle of the bridge main body 51 is regulated (see FIG. 6C). The wheel 55 is made of steel and is attached to the rib material 52 at the outermost end.

ここで、図６を参照して、浮上構造物１０（地盤部２１およびフロート部２２）の浮上に伴うブリッジ２５の挙動について説明する。
図６（ａ）に示すように、定常時（非出水時）においては、浮上構造物１０（駐車場１１）の路面と、ブリッジ２５の路面と、調整池１の天端部２の路面とが、略面一となっている。これにより、公道５から駐車場１１に至る車路３４に傾斜路が生ずることがなく、且つ公道５から駐車場１１に最短距離で出入りできるようになっている。 Here, with reference to FIG. 6, the behavior of the bridge 25 accompanying the floating of the floating structure 10 (ground portion 21 and float portion 22) will be described.
As shown in FIG. 6A, in the steady state (during non-flooding), the road surface of the floating structure 10 (parking lot 11), the road surface of the bridge 25, and the road surface of the top end 2 of the regulating pond 1 However, it is almost flush. As a result, the road 34 from the public road 5 to the parking lot 11 does not have a ramp, and the public road 5 can enter and exit the parking lot 11 in the shortest distance.

図６（ｂ）に示すように、出水により調整池１に水が流れ込むと、浮上構造物１０に浮力が生じ、地盤部２１が浮上を開始する。一方の端部を地盤部２１に支持されているブリッジ２５は、駐車場１１側において回動し且つ公道５側において転動するようにして、傾いてゆく。なお、この浮上初期状態では、車両Ｓの駐車場１１への出入りが可能であるが、天端部２に設けた図外のゲートにより、出入りを禁止することが好ましい。 As shown in FIG. 6B, when water flows into the regulating pond 1 due to flooding, buoyancy is generated in the floating structure 10 and the ground portion 21 starts floating. The bridge 25, whose one end is supported by the ground portion 21, is tilted so as to rotate on the parking lot 11 side and roll on the public road 5 side. In this initial state of ascent, the vehicle S can enter and exit the parking lot 11, but it is preferable to prohibit entry and exit by a gate (not shown) provided at the top end 2.

図６（ｃ）に示すように、浮上構造物１０（地盤部２１およびフロート部２２）の浮上が進むと、ブリッジ２５におけるヒンジ部５４の一部がストッパピン５６に当接し、ブリッジ２５の傾きが規制される。すなわち、地盤部２１の浮上がある程度まで進むと、ブリッジ２５は傾斜姿勢のまま地盤部２１と共に浮上（上昇）してゆく。一方、この状態から水が引いて、地盤部２１が下降してゆくと、やがてブリッジ２５の車輪５５が天端部２に着地し、上記と逆の手順でブリッジ２５が元の状態に復帰する。すなわち、調整池１から水が引くと、駐車場１１（地盤部２１）およびブリッジ２５が自動的に元の状態に復帰する。 As shown in FIG. 6C, as the floating structure 10 (ground portion 21 and float portion 22) ascends, a part of the hinge portion 54 in the bridge 25 comes into contact with the stopper pin 56, and the bridge 25 tilts. Is regulated. That is, when the ground portion 21 rises to a certain extent, the bridge 25 rises (rises) together with the ground portion 21 in an inclined posture. On the other hand, when water is drawn from this state and the ground portion 21 descends, the wheels 55 of the bridge 25 eventually land on the top end portion 2, and the bridge 25 returns to the original state in the reverse procedure of the above. .. That is, when water is drawn from the regulating pond 1, the parking lot 11 (ground portion 21) and the bridge 25 automatically return to their original states.

図３に示すように、ネット状部材２６は、ステンレス製のネット材やグレーチング等で形成されたネット本体５８と、地盤部２１の型鋼３２ａに固定され、ネット本体５８を支持する片持ち材５９と、を有している。すなわち、ネット状部材２６は、地盤部２１に固定され、地盤部２１の周縁部２１ｂと調整池１の天端部２との間隙を覆うように設けられている。これにより、調整池１と駐車場１１との間に生ずる間隙が覆われ、ネット状部材２６は人に対し防護ネット的な機能を奏し、またごみ等に対しフィルター的な機能を奏する。 As shown in FIG. 3, the net-shaped member 26 is fixed to a net main body 58 formed of a stainless steel net material, grating or the like, and a structural steel 32a of the ground portion 21, and is a cantilever member 59 that supports the net main body 58. And have. That is, the net-like member 26 is fixed to the ground portion 21 and is provided so as to cover the gap between the peripheral edge portion 21b of the ground portion 21 and the top end portion 2 of the regulating pond 1. As a result, the gap generated between the regulating pond 1 and the parking lot 11 is covered, and the net-like member 26 functions as a protective net for people and as a filter for dust and the like.

以上のように、本実施形態によれば、浮上構造物１０の駐車場１１が調整池１の全域を覆うように設けられるが、出水時に調整池１に水が流入すると、駐車場１１（地盤部２１）はフロート部２２により浮上する。この浮上は、ガイド支柱２３によりガイドされるため、浮上構造物１０は外に流されることがなく、且つ水が引くと元の位置に復帰する。したがって、調整池１としての機能を損なうことなく、定常時には調整池１を駐車場１１として活用することができ、かつ出水時には、地盤部２１上の人間や車両Ｓを水害から守ることができる． As described above, according to the present embodiment, the parking lot 11 of the floating structure 10 is provided so as to cover the entire area of the regulating pond 1, but when water flows into the regulating pond 1 at the time of flooding, the parking lot 11 (ground). The portion 21) is levitated by the float portion 22. Since this levitation is guided by the guide support column 23, the levitation structure 10 is not washed out and returns to the original position when water is drawn. Therefore, the regulating pond 1 can be utilized as the parking lot 11 in the steady state without impairing the function as the regulating pond 1, and the human being and the vehicle S on the ground portion 21 can be protected from flood damage at the time of flooding.

また、駐車場１１の路面である地盤部２１の表面２１ａが、調整池１の天端面２ａと略面一に配設されているため、天端部２に形成する車路３４を、傾斜がなく且つ短いものとすることができ、使い勝手の良好な駐車場１１を提供できると共に、付帯設備のコストを低減することができる。 Further, since the surface 21a of the ground portion 21 which is the road surface of the parking lot 11 is arranged substantially flush with the top end surface 2a of the regulating pond 1, the lane 34 formed on the top end portion 2 is inclined. It can be made short and short, and the parking lot 11 can be provided with good usability, and the cost of ancillary equipment can be reduced.

なお、本発明の浮上構造物は、掘込み形式の調整池に設けられるものであるが、掘込み形式に代えて、ダム式等の調整池にも適用可能であることは、言うまでもない。
また、本発明の浮上構造物は、駐車場の他、屋外施設として公園やテニスコート等のスポーツ施設であってもよい。 The floating structure of the present invention is provided in a digging type regulating pond, but it goes without saying that it can be applied to a dam type regulating basin instead of the digging type.
Further, the floating structure of the present invention may be a sports facility such as a park or a tennis court as an outdoor facility in addition to a parking lot.

１…調整池、２…天端部、２ａ…天端面、３ａ…底面、１０…浮上構造物、１１…駐車場、２１…地盤部、２１ａ…表面、２１ｂ…周縁部、２２…フロート部、２２ａ…下端面、２３…ガイド支柱、２５…ブリッジ、２６…ネット状部材、２８…支持脚部、３１…路面部、３２…地盤構造部、３６…支持係合部、４１…支持部、４２…ガイド部、４６…部分フロート、５１…ブリッジ本体、５４…ヒンジ部、５５…車輪、
1 ... Retention basin, 2 ... Top end, 2a ... Top surface, 3a ... Bottom surface, 10 ... Floating structure, 11 ... Parking lot, 21 ... Ground part, 21a ... Surface, 21b ... Peripheral part, 22 ... Float part, 22a ... Lower end surface, 23 ... Guide strut, 25 ... Bridge, 26 ... Net-like member, 28 ... Support leg, 31 ... Road surface, 32 ... Ground structure, 36 ... Support engagement, 41 ... Support, 42 ... guide part, 46 ... partial float, 51 ... bridge body, 54 ... hinge part, 55 ... wheels,

Claims

It is a floating structure that is installed in a regulating pond and rises as the water level rises at the time of flooding and is used as a specific outdoor facility.
The surface constitutes the ground surface of the outdoor facility, and the ground portion that matches the size of the regulating pond and
A float portion that is arranged under the ground portion and raises the ground portion, and a float portion.
It is provided with a plurality of guide columns which are erected on the bottom surface of the regulating pond and guide the ascent of the ground portion.
A floating structure characterized in that the surface of the ground portion at the time of non-flooding is arranged substantially flush with the top surface of the regulating pond.

Each of the guide columns
A strut portion that is erected on the bottom surface of the regulating pond and supports the ground portion,
The levitation structure according to claim 1, further comprising a guide portion that is connected to the upper side of the support column portion and guides the levitation of the ground portion.

The levitation structure according to claim 1 or 2, further comprising a plurality of support legs that land on the bottom surface of the regulating pond and support the ground portion.

The levitation according to claim 2 or 3, wherein the float portion is attached to the ground portion so that a predetermined gap is formed between the lower end surface of the float portion and the bottom surface of the regulating pond. Structure.

A bridge is further provided between the peripheral edge of the ground and the top of the regulating pond.
The levitation structure according to any one of claims 1 to 4, wherein the bridge is rotatably supported by the ground portion at an end portion on the ground portion side.

The levitation structure according to any one of claims 1 to 5, further comprising a net-like member covering a gap between the peripheral edge portion of the ground portion and the top end portion of the regulating pond.

The floating structure according to any one of claims 1 to 6, wherein the outdoor facility is a parking lot.