JP3181552B2 - Reinforcement structure and reinforcement method of foundation structure in building - Google Patents
Reinforcement structure and reinforcement method of foundation structure in buildingInfo
- Publication number
- JP3181552B2 JP3181552B2 JP08505098A JP8505098A JP3181552B2 JP 3181552 B2 JP3181552 B2 JP 3181552B2 JP 08505098 A JP08505098 A JP 08505098A JP 8505098 A JP8505098 A JP 8505098A JP 3181552 B2 JP3181552 B2 JP 3181552B2
- Authority
- JP
- Japan
- Prior art keywords
- foundation
- concrete
- building
- foamed resin
- existing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Landscapes
- Foundations (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Description
【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION
【０００１】[0001]
【発明の属する技術分野】本発明は、既存の建造物の地
震、交通震動等の耐震性向上や地盤沈下対策として施工
することのできる建造物における基礎構造の補強構造及
び補強工法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reinforcing structure and a reinforcing method for a foundation structure in a building which can be constructed as an earthquake-resistant improvement of an existing building such as an earthquake or traffic vibration or as a measure against ground subsidence.
【０００２】[0002]
【従来の技術及び発明が解決しようとする課題】建築
後、年数を経た建造物や地盤の軟弱な土地に建てられた
建造物等、既存の建造物の中には耐震性に対する補強や
地盤沈下に対する補強が必要な建造物が多く見受けられ
る。2. Description of the Related Art Some existing buildings, such as buildings that have passed years after construction and buildings that have been built on soft ground, have reinforcement for earthquake resistance and land subsidence. There are many buildings that require reinforcement.
【０００３】従来、建造物の地震又は交通の震動や地盤
沈下に対する補強策として、建造物の基礎コンクリート
量を増やしたり、基礎の鉄筋量を増やす等の方法や、杭
を打って杭の支持力で建造物を支えるようにする方法、
或いはセメント系の地盤改良材を用いて軟弱な地盤を改
良する方法等が知られている。[0003] Conventionally, as a measure against the earthquake or traffic shaking of the building or the ground subsidence, methods such as increasing the amount of foundation concrete of the building, increasing the amount of reinforcing steel of the foundation, and hitting the pile to support the pile. How to support the building with
Alternatively, a method of improving a soft ground using a cement-based ground improvement material is known.
【０００４】しかしながら、上記の方法は既存の建造物
における補強構造として施工することが困難であった
り、経済的に不利であったり、耐震性能の大きな向上が
認められないという問題がある。また建造物の新築の際
には、特開平９−２７３１６０号公報、特開平９−１６
５７５８号公報等に記載の構造が耐震性向上、地盤沈下
対策に効果的であるが既存の建造物に後から採用し得る
ものではなかった。[0004] However, the above-mentioned method has problems that it is difficult to construct as a reinforcing structure in an existing building, is economically disadvantageous, and a great improvement in seismic performance is not recognized. When a new building is constructed, Japanese Patent Application Laid-Open Nos. 9-273160 and 9-16
The structure described in Japanese Patent No. 5758 and the like is effective in improving earthquake resistance and countermeasures for land subsidence, but cannot be adopted later in existing buildings.
【０００５】本発明は、上記課題を解決するためになさ
れたもので、既存の建造物に後から耐震性及び免震性の
向上、地盤沈下防止を目的として施工することのできる
建造物における基礎構造の補強構造及び補強工法を提供
することを目的とする。The present invention has been made in order to solve the above-mentioned problems, and has been made in order to improve the seismic resistance and seismic isolation of an existing building and to prevent ground subsidence. An object of the present invention is to provide a reinforcing structure of a structure and a reinforcing method.
【０００６】[0006]
【課題を解決するための手段】即ち本発明の建造物にお
ける基礎構造の補強構造は、既存の建造物における基礎
構造の下側を掘削して土を排除して穴部を設け、この穴
部に発泡樹脂盤を載置し、発泡樹脂盤と既存の基礎構造
の底面及び該底面より上側の少なくとも一部とをコンク
リートを介して接合し、かつ該コンクリートの重量以上
の重量の土を、既存の基礎構造の下側より掘削排除する
補強構造を特徴とする。That is, the reinforcement structure of the foundation structure of the building according to the present invention is provided by excavating the underside of the foundation structure of an existing building to remove soil and providing a hole. The foam resin board is placed on the foam resin board and the existing basic structure
The bottom and at least a portion above the bottom
Joined through the REET and more than the weight of the concrete
Of heavy soil is excavated below the existing foundation structure
Features a reinforced structure .
【０００７】また本発明の補強構造は、既存の建造物に
おける基礎構造の下側を掘削して土を排除して穴部を設
け、この穴部に発泡樹脂コンクリートを流し込んで硬化
させた発泡樹脂コンクリート盤と既存の基礎構造の底面
及び該底面より上側の少なくとも一部とを接合一体化し
てなる補強構造を包含する。Further, the reinforcing structure of the present invention is a foamed resin obtained by excavating a lower side of a foundation structure of an existing building to remove soil and forming a hole, and pouring foamed resin concrete into the hole and hardening the hole. Bottom of concrete board and existing foundation
And a reinforcing structure formed by joining and integrating at least a portion above the bottom surface .
【０００８】また本発明の補強工法は、既存の建造物に
おける基礎構造の下側を掘削して土を排除し、次いで土
を排除して形成された基礎構造下部の穴部に、発泡樹脂
盤を載置し、しかる後、該発泡樹脂盤と既存の基礎との
間にコンクリート又は発泡樹脂コンクリートを流し込ん
で発泡樹脂盤と既存の基礎構造の底面及び該底面より上
側の少なくとも一部とを接合一体化するものである。ま
た本発明の補強工法は、既存の建造物における基礎構造
の下側を掘削して土を排除し、次いで土を排除して形成
された基礎構造下部の穴部に、発泡樹脂コンクリートを
流し込んで硬化させ、既存の基礎構造の底面及び該底面
より上側の少なくとも一部と接合一体化した発泡樹脂コ
ンクリート盤を形成するものである。Further, the reinforcing method of the present invention excavates a lower part of a foundation structure of an existing building to remove soil, and then, in a hole at a lower part of the foundation structure formed by removing the soil, a foamed resin board is provided. After that, concrete or foamed resin concrete is poured between the foamed resin disc and the existing foundation, and the foamed resin disc and the bottom of the existing foundation structure and above the bottom face
At least a part of the side . In addition, the reinforcing method of the present invention excavates the lower side of the foundation structure of an existing building to remove soil, and then pours foamed resin concrete into a hole in the lower part of the foundation structure formed by removing the soil. Cured, the bottom of the existing substructure and the bottom
This forms a foamed resin concrete board joined and integrated with at least a part of the upper side .
【０００９】[0009]
【発明の実施の形態】以下、本発明の実施例を図面に基
づき説明する。Embodiments of the present invention will be described below with reference to the drawings.
【００１０】図１は、布基礎構造の既存の建造物に本発
明補強構造を適用した例を示す。図１（ａ）は建物の基
礎部分を上からみた模式図、図１（ｂ）、（ｃ）は図１
（ａ）のＸ−Ｙ線に沿う略縦断面図である。図１（ａ）
中１０ａ〜１０ｊは補強を施す部分の一例を示す。本発
明の構造を設けるには、図１（ｂ）に示すように例えば
補強を施す部分１０ａの基礎１１のまわりを掘削して穴
部１を設け、この穴部１内に補強構造を形成する。図１
（ｃ）は基礎１１の部分に補強構造を設けた一例を示
す。３は砂利、４は発泡樹脂盤、６は発泡樹脂盤と基礎
１１とを接合するコンクリート又は発泡樹脂コンクリー
ト、１３は土である。発泡樹脂盤と既存の基礎構造の底
面及び該底面より上側の少なくとも一部とをコンクリー
トを介して接合し、かつ該コンクリートの重量以上の重
量の土を、既存の基礎構造の下側より掘削排除すること
により建造物の地盤沈下応力を軽減することができ、該
建造物の地盤沈下防止対策に極めて有効なものとなる。
尚、図１（ｂ）、（ｃ）においてＧＬはグランドライン
である。FIG. 1 shows an example in which the reinforcing structure of the present invention is applied to an existing building having a cloth foundation structure. FIG. 1A is a schematic view of a foundation portion of a building viewed from above, and FIGS. 1B and 1C are diagrams of FIG.
FIG. 3A is a schematic vertical sectional view taken along line XY of FIG. FIG. 1 (a)
Mediums 10a to 10j indicate examples of a portion to be reinforced. In order to provide the structure of the present invention, for example, as shown in FIG. 1B, a hole 1 is formed by excavating around a foundation 11 of a portion 10a to be reinforced, and a reinforcing structure is formed in the hole 1. . FIG.
(C) shows an example in which a reinforcing structure is provided on the base 11. Reference numeral 3 denotes gravel, 4 denotes a foamed resin disc, 6 denotes concrete or foamed resin concrete for joining the foamed resin disc to the foundation 11, and 13 denotes soil. Foam resin board and bottom of existing foundation structure
Surface and at least a portion above the bottom surface are connected to each other via concrete, and soil having a weight equal to or greater than the weight of the concrete is excavated and removed from underneath the existing foundation structure. Can be reduced, which is extremely effective in preventing land subsidence of the building.
In FIGS. 1B and 1C, GL is a ground line.
【００１１】本発明で用いる発泡樹脂盤４としては、軽
量で、必要な圧縮強度を有するものであればよく、ポリ
スチレン、ポリプロピレン、ポリエチレン、ポリウレタ
ン、ポリ塩化ビニル等の発泡体よりなるものを挙げるこ
とができるが、ポリウレタンは、加水分解が起こるので
耐久性に難があり、ポリ塩化ビニルは燃えると塩酸ガス
が発生し、公害上の問題を有するので、ポリスチレン、
ポリプロピレン、ポリエチレン等の発泡体よりなるもの
が好ましい。この発泡樹脂盤４の圧縮強度は、建物の構
造が木造、鉄筋コンクリート、鉄骨等により異なるが一
般的には３〜２０ｔ／ｍ2 である。The foamed resin disc 4 used in the present invention may be any one that is lightweight and has the required compressive strength, and may be made of a foamed material such as polystyrene, polypropylene, polyethylene, polyurethane, or polyvinyl chloride. However, polyurethane has difficulty in durability because it undergoes hydrolysis, and polyvinyl chloride generates hydrochloric acid gas when it burns, causing pollution problems, so polystyrene,
What consists of foams, such as polypropylene and polyethylene, is preferable. The compressive strength of the foamed resin plate 4 is generally 3 to 20 t / m 2 , although the structure of the building differs depending on the wooden structure, reinforced concrete, steel frame and the like.
【００１２】本発明で用いる発泡樹脂コンクリートは、
合成樹脂発泡体とコンクリートとを混合したものであ
る。発泡体としては、上記発泡樹脂盤４と同様のものが
好ましい。コンクリートの代わりに発泡樹脂コンクリー
トを用いて発泡樹脂盤６と基礎とを接合すると、コンク
リートを用いた場合よりも全体の重量を軽くすることが
できる。接合に用いる発泡樹脂コンクリートの比重は
０．３〜１．３ｔ／ｍ3 が好ましい。The foamed resin concrete used in the present invention is:
It is a mixture of synthetic resin foam and concrete. As the foam, those similar to the foam resin disc 4 are preferable. When the foamed resin disc 6 and the foundation are joined using foamed resin concrete instead of concrete, the overall weight can be reduced as compared with the case where concrete is used. The specific gravity of the foamed resin concrete used for joining is preferably 0.3 to 1.3 t / m 3 .
【００１３】次に本発明の施工方法を、順を追って具体
的に説明するが、本発明はこれら実施例によって何ら限
定されるものではない。Next, the construction method of the present invention will be specifically described step by step, but the present invention is not limited to these examples.
【００１４】（１）既設の建物の基礎（布基礎）を調査
し、基礎が折れたり、傾いたり、歪んだり、若しくは撓
んだりした、又は耐震性能が低下した箇所（例えば図１
（ａ）の１０ａ〜１０ｊ）を探し出し、地震又は交通の
振動のデータ等を解析し、該箇所１０ａ〜１０ｊにそれ
ぞれ最適な発泡樹脂盤６の大きさ、圧縮強度を決定す
る。(1) The foundation (cloth foundation) of an existing building is investigated, and the foundation is broken, tilted, distorted, bent, or deteriorated in seismic performance (for example, FIG. 1).
(A) 10a to 10j) are searched, and data of earthquake or traffic vibration is analyzed, and the optimal size and compressive strength of the foamed resin plate 6 for each of the locations 10a to 10j are determined.
【００１５】（２）上記箇所１０ａ〜１０ｊのうちのま
ず上記箇所１０ａについての基礎１１の下部を、深さが
約１００ｃｍ、縦、横それぞれ約１００〜２００ｃｍの
大きさの穴部１を図１（ｂ）に示すように掘削する。穴
部１の大きさは、必要に応じて適宜変えることができ
る。(2) First, a hole 1 having a depth of about 100 cm, length and width of about 100 to 200 cm is formed in the lower part of the foundation 11 at the point 10 a among the points 10 a to 10 j in FIG. Excavate as shown in (b). The size of the hole 1 can be changed as needed.
【００１６】（３）掘削した穴部１の床部２の上に図１
（ｃ）に示すように砂利３を敷き詰めて、該砂利３の上
からランマー等により締め固める。次いで上記砂利３の
上を砂、山砂等により目潰しし、更にランマー等により
締め固める。(3) On the floor 2 of the hole 1 excavated, FIG.
As shown in (c), the gravel 3 is spread and compacted with a rammer or the like from above the gravel 3. Next, the above gravel 3 is crushed with sand, mountain sand, or the like, and further compacted with a rammer or the like.
【００１７】（４）次いで、砂利３の上に発泡樹脂盤４
を載置する。発泡樹脂盤４の大きさは、縦約１００〜２
００ｃｍ×横約１００〜２００ｃｍ×厚み約５〜５０ｃ
ｍであり、必要に応じて適宜変えることができる。ま
た、発泡樹脂盤４の形状は任意に変えることができ、例
えば平断面形状が四角形、円形、六角形等が挙げられ
る。(4) Next, the foamed resin disk 4
Is placed. The size of the foam resin plate 4 is about 100 to 2
00cm x width 100 ~ 200cm x thickness 5 ~ 50c
m, which can be changed as needed. Further, the shape of the foamed resin disk 4 can be arbitrarily changed, and examples thereof include a square cross section, a circular shape, and a hexagonal shape.
【００１８】（５）設置した発泡樹脂盤４の上に鉄筋を
組む。鉄筋の形状はどんな形でもよいが、発泡樹脂盤４
を保護するため、平面で網目状のものが好ましい。(5) A reinforcing bar is assembled on the foamed resin board 4 that has been installed. The shape of the reinforcing bar may be any shape.
In order to protect the surface, it is preferable to use a flat and mesh-like material.
【００１９】（６）発泡樹脂盤４と基礎との間のスペー
スにコンクリート６を流し込み、養生し、硬化して建物
の基礎１１の底面及び該底面より上側の少なくとも一部
と発泡樹脂盤４とを接合一体化し、その後ＧＬまで土１
３を敷き固める。コンクリート６を流し込む場合、コン
クリートの無駄な消費を避けるため、周囲に型枠を設け
ると好ましい。上記（１）〜（６）と同様の工程を１０
ｂ〜１０ｊについて順次繰り返して行なうことにより、
全ての箇所１０ａ〜１０ｊに補強を施す。(6) The concrete 6 is poured into the space between the foamed resin board 4 and the foundation, cured, hardened, and foamed on the bottom surface of the foundation 11 of the building and at least a part above the bottom surface. The resin plate 4 is joined and integrated, and then the soil 1
Spread 3 and harden. When the concrete 6 is poured, it is preferable to provide a formwork around the concrete 6 in order to avoid wasteful consumption of the concrete. Steps similar to the above (1) to (6) are
By sequentially and repeatedly performing b to 10j,
Reinforcement is applied to all portions 10a to 10j.
【００２０】図２は、発泡樹脂盤４の代わりに発泡樹脂
コンクリート８により、布基礎構造の既存の建造物に本
発明補強構造を適用した例を示す。FIG. 2 shows an example in which the reinforcing structure of the present invention is applied to an existing building having a cloth foundation structure using foam resin concrete 8 instead of the foam resin board 4.
【００２１】既存の布基礎１１の下部を掘削し土を排除
し、掘削した穴部の床部の上に砂利３を敷き詰めて、該
砂利３の上からランマー等により締め固め、上記砂利３
の上を砂、山砂等により目潰しし、更にランマー等によ
り締め固める。次に、掘削した穴部に発泡樹脂コンクリ
ート８を流し込み、養生し、硬化させて発泡樹脂コンク
リート盤を形成させる。その結果、該発泡樹脂コンクリ
ート盤と建物の基礎１１の底面及び該底面より上側の少
なくとも一部とが接合一体化する。その後ＧＬまで土１
３を敷き固める。The lower part of the existing cloth foundation 11 is excavated to remove soil, the gravel 3 is spread on the floor of the excavated hole, and compacted from above the gravel 3 with a rammer or the like, and the gravel 3 is compacted.
Is crushed with sand, mountain sand, etc., and then compacted with a rammer. Next, the foamed resin concrete 8 is poured into the excavated hole, cured, and hardened to form a foamed resin concrete board. As a result, the bottom surface of the foamed resin concrete board and the foundation 11 of the building, and a small amount above the bottom surface.
At least one part is joined and integrated. Then, until GL 1
Spread 3 and harden.
【００２２】図３は、既存の杭基礎構造建造物に本発明
補強構造を適用した例を示す。FIG. 3 shows an example in which the reinforcing structure of the present invention is applied to an existing pile foundation structure.
【００２３】既存の杭基礎１２の基礎部分１２ａの下部
を掘削し土を排除し、掘削した穴部の床部の上に砂利３
を敷き詰めて、該砂利３の上からランマー等により締め
固め、上記砂利３の上を砂、山砂等により目潰しし、更
にランマー等により締め固める。次に、掘削した穴部に
発泡樹脂盤４を設置し、発泡樹脂盤と基礎との間のスペ
ースにコンクリート６を打設し、養生し、固めて基礎部
分１２ａの底面及び該底面より上側の少なくとも一部と
杭部分１２ｂとからなる杭基礎１２と発泡樹脂盤４とを
接合一体化する。The lower part of the foundation 12a of the existing pile foundation 12 is excavated to remove the soil, and the gravel 3 is placed on the floor of the excavated hole.
Is spread over the gravel 3 and compacted with a rammer or the like. The gravel 3 is crushed with sand or mountain sand, and further compacted with a rammer or the like. Next, the foamed resin board 4 is placed in the excavated hole, concrete 6 is poured into the space between the foamed resin board and the foundation, cured, hardened, and the bottom surface of the base portion 12a and the upper side of the bottom surface. The pile foundation 12 composed of at least a part and the pile portion 12b and the foamed resin board 4 are joined and integrated.
【００２４】図４は、既存のベタ基礎構造建造物に本発
明補強構造を適用した例を示す。FIG. 4 shows an example in which the reinforcing structure of the present invention is applied to an existing solid foundation structure.
【００２５】図中、７はベタ基礎、８は発泡樹脂コンク
リート、３は砂利を示す。In the figure, 7 is solid foundation, 8 is foamed resin concrete, and 3 is gravel.
【００２６】本発明を適用できる建物の基礎構造として
は、上記布基礎、杭基礎、ベタ基礎以外に独立基礎、独
立基礎と梁構造の基礎等が挙げられる。As a foundation structure of a building to which the present invention can be applied, in addition to the above-mentioned cloth foundation, pile foundation, solid foundation, an independent foundation, an independent foundation and a foundation of a beam structure and the like can be mentioned.
【００２７】上記、図１〜図４に示す実施例において砂
利３を用いず、既存の基礎の下部を掘削し土を排除し、
掘削した穴部の床部２に直接発泡樹脂盤４を設けるか又
は前記床部２に発泡樹脂コンクリート８を直接流し込ん
でもよい。In the embodiment shown in FIGS. 1 to 4, the gravel 3 is not used, and the lower part of the existing foundation is excavated to remove soil.
The foamed resin plate 4 may be provided directly on the floor 2 of the excavated hole, or the foamed resin concrete 8 may be directly poured into the floor 2.
【００２８】図１、図３に示す実施例では、発泡樹脂盤
と建物の基礎の底面及び該底面より上側の少なくとも一
部を接合一体化する際に、コンクリートを用いている
が、発泡樹脂コンクリートを用いてもよい。或いは、コ
ンクリートと発泡樹脂コンクリートとの混合物を用いて
もよい。In the embodiment shown in FIGS. 1 and 3, the foamed resin board and the bottom of the building foundation and at least one
When joining and integrating the parts , concrete is used, but foamed resin concrete may be used. Alternatively, a mixture of concrete and foamed resin concrete may be used.
【００２９】図３に示す実施例では発泡樹脂盤を用いて
いるが、発泡樹脂コンクリートを用いてもよく、また図
４に示す実施例では発泡樹脂コンクリートを用いている
が、発泡樹脂盤を用いてもよい。Although the foamed resin disc is used in the embodiment shown in FIG. 3, foamed resin concrete may be used. In the embodiment shown in FIG. 4, the foamed resin disc is used. You may.
【００３０】図１、図３、図４の実施例における発泡樹
脂コンクリートは、図２の実施例における発泡樹脂コン
クリートと同様のものが用いられる。The foamed resin concrete in the embodiment shown in FIGS. 1, 3 and 4 is the same as the foamed resin concrete in the embodiment shown in FIG.
【００３１】本発明の補強構造を既存の建造物の基礎構
造に適用することにより、地震又は交通の振動が、発泡
樹脂盤や発泡樹脂コンクリート盤で緩和され、建物の耐
震性、耐地盤沈下性が飛躍的に向上する。By applying the reinforcing structure of the present invention to the foundation structure of an existing building, the vibration of earthquake or traffic is mitigated by the foamed resin plate or the foamed resin concrete plate, and the building is resistant to earthquake and ground subsidence. Is dramatically improved.
【００３２】[0032]
【発明の効果】以上説明したように、本発明は既設の建
造物における基礎部分の補強を容易に行なうことがで
き、基礎構造の底面及び該底面より上側の少なくとも一
部と発泡樹脂盤又は発泡樹脂コンクリート盤とを一体に
形成することで、既設の建造物の耐震性と免震性が向上
し、また既設の基礎構造の下側の土を発泡樹脂盤又は発
泡樹脂コンクリート盤に置き換えることは軽量基礎構造
となり、建造物の地盤沈下防止対策にもなる。さらに、
簡単に補強できるので工事期間が短時間で済み、経済的
に安価であるという効果を有する。As described above, according to the present invention, it is possible to easily reinforce the foundation portion of an existing building, and to at least one of the bottom surface of the foundation structure and the upper side of the bottom surface.
By integrally forming the section and the foamed resin board or foamed resin concrete board, the seismic resistance and seismic isolation of the existing building are improved, and the soil under the existing foundation structure is foamed with foam or foam. Replacing with a resin concrete board will be a lightweight foundation structure, and will also serve as a measure to prevent ground subsidence in buildings. further,
Since it can be reinforced easily, the construction period is short, and it is economically inexpensive.
【図１】布基礎構造の既存の建造物に本発明補強構造を
適用した一実施例を示すもので、同図（ａ）は建物の基
礎部分を上からみた模式図、同図（ｂ）、（ｃ）は同図
（ａ）のＸ−Ｙ線に沿う縦断面略図であって、本発明補
強工法の工程を示す図である。FIG. 1 shows an embodiment in which the reinforcing structure of the present invention is applied to an existing building having a cloth foundation structure. FIG. 1 (a) is a schematic view of a foundation portion of a building viewed from above, and FIG. 1 (b). (C) is a schematic longitudinal sectional view taken along the line XY of (a) of the same figure, and is a view showing the steps of the reinforcing method of the present invention.
【図２】発泡樹脂盤の代わりに発泡樹脂コンクリート盤
により、布基礎構造の既存の建造物に本発明補強構造を
適用した縦断面略図である。FIG. 2 is a schematic longitudinal sectional view in which the reinforcing structure of the present invention is applied to an existing building having a cloth foundation structure using a foamed resin concrete board instead of a foamed resin board.
【図３】建造物の基礎構造が杭基礎構造である場合に、
本発明補強構造を適用した一実施例を示す縦断面略図で
ある。FIG. 3 When the foundation structure of a building is a pile foundation structure,
It is a longitudinal section schematic diagram showing one example to which the reinforcing structure of the present invention is applied.
【図４】建造物の基礎構造がベタ基礎構造である場合
に、本発明補強構造を適用した一実施例を示す縦断面略
図である。FIG. 4 is a schematic longitudinal sectional view showing an embodiment to which the reinforcing structure of the present invention is applied when the foundation structure of the building is a solid foundation structure.
１ 掘削した穴部 ２ 掘削した穴部の床部 ３ 砂利 ４ 発泡樹脂盤 ６ コンクリート又は／及び発泡樹脂コンクリート ７ ベタ基礎 ８ 発泡樹脂コンクリート ９ 梁 １０ａ〜１０ｊ基礎が折れたり、傾いたり、歪んだり、
若しくは撓んだりした、又は耐震性能が低下した箇所 １１ 建物の基礎（布基礎） １２ 杭基礎 １３ 土DESCRIPTION OF SYMBOLS 1 Excavated hole 2 Floor of excavated hole 3 Gravel 4 Foam resin board 6 Concrete or / and foamed resin concrete 7 Solid foundation 8 Foamed resin concrete 9 Beam 10a-10j
Or the place where it was bent or the seismic performance deteriorated 11 Building foundation (cloth foundation) 12 Pile foundation 13 Soil
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.7，ＤＢ名) E02D 27/00 - 27/52 E02D 35/00 - 37/00 E02D 3/00 ──────────────────────────────────────────────────続 き Continued on the front page (58) Fields surveyed (Int. Cl. 7 , DB name) E02D 27/00-27/52 E02D 35/00-37/00 E02D 3/00
Claims (4)
掘削して土を排除して穴部を設け、この穴部に発泡樹脂
盤を載置し、発泡樹脂盤と既存の基礎構造の底面及び該
底面より上側の少なくとも一部とをコンクリートを介し
て接合し、かつ該コンクリートの重量以上の重量の土
を、既存の基礎構造の下側より掘削排除することを特徴
とする建造物における基礎構造の補強構造。 1. Excavating the lower side of a foundation structure in an existing building to remove soil and providing a hole, placing a foam resin disc in the hole, and forming a foam resin disc and the existing foundation structure. Bottom and the
At least part of the area above the bottom with concrete
Soil with a weight equal to or greater than the weight of the concrete
Is excavated from below the existing foundation structure.
Reinforcement structure of the foundation structure in the building.
掘削して土を排除して穴部を設け、この穴部に発泡樹脂
コンクリートを流し込んで硬化させた発泡樹脂コンクリ
ート盤と既存の基礎構造の底面及び該底面より上側の少
なくとも一部とを接合一体化してなることを特徴とする
建造物における基礎構造の補強構造。2. A foam resin concrete board which is formed by excavating a lower side of a foundation structure of an existing building and removing soil to form a hole, pouring foam concrete into the hole, and hardening the hole. The bottom of the structure and
A structure for reinforcing a basic structure of a building, characterized in that the structure is integrated with at least a part .
掘削して土を排除し、次いで土を排除して形成された基
礎構造下部の穴部に、発泡樹脂盤を載置し、しかる後、
該発泡樹脂盤と既存の基礎との間にコンクリート又は発
泡樹脂コンクリートを流し込んで発泡樹脂盤と既存の基
礎構造の底面及び該底面より上側の少なくとも一部とを
接合一体化することを特徴とする建造物における基礎構
造の補強工法。3. Excavating the lower side of the foundation structure of an existing building to remove the soil, and then placing a foamed resin disc in a hole at the bottom of the foundation structure formed by removing the soil. rear,
Concrete or foamed resin concrete is poured between the foamed resin disc and the existing foundation, and the foamed resin disc and the bottom surface of the existing foundation structure and at least a portion above the bottom surface are joined and integrated. Reinforcement method of foundation structure in building.
掘削して土を排除し、次いで土を排除して形成された基
礎構造下部の穴部に、発泡樹脂コンクリートを流し込ん
で硬化させ、既存の基礎構造の底面及び該底面より上側
の少なくとも一部と接合一体化した発泡樹脂コンクリー
ト盤を形成することを特徴とする建造物における基礎構
造の補強工法。4. Excavating the underside of the foundation structure of an existing building to remove soil, and then pouring foam resin concrete into a hole in the lower part of the foundation structure formed by removing the soil and hardening, Bottom of existing substructure and above
Forming a foamed resin concrete board joined and integrated with at least a part of the structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP08505098A JP3181552B2 (en) | 1998-03-16 | 1998-03-16 | Reinforcement structure and reinforcement method of foundation structure in building |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP08505098A JP3181552B2 (en) | 1998-03-16 | 1998-03-16 | Reinforcement structure and reinforcement method of foundation structure in building |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH11256596A JPH11256596A (en) | 1999-09-21 |
| JP3181552B2 true JP3181552B2 (en) | 2001-07-03 |
Family
ID=13847849
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP08505098A Expired - Lifetime JP3181552B2 (en) | 1998-03-16 | 1998-03-16 | Reinforcement structure and reinforcement method of foundation structure in building |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3181552B2 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4163539B2 (en) * | 2003-03-20 | 2008-10-08 | 株式会社ミラクルスリーコーポレーション | Seismic reinforcement extension method of building and earthquake resistance reinforcement extension building |
| JP5194591B2 (en) * | 2007-07-06 | 2013-05-08 | サンセーキシステム有限会社 | House repair new foundation method |
| JP5801599B2 (en) * | 2011-05-09 | 2015-10-28 | 株式会社プラント・ツリース | Building |
| JP2014169593A (en) * | 2013-03-05 | 2014-09-18 | Nitto Shoji Ltd | Seismic isolated foundation structure of architectural structure |
| JP6452163B2 (en) * | 2016-03-03 | 2019-01-16 | 中村物産有限会社 | Retaining wall structure |
| JP6912334B2 (en) * | 2017-09-15 | 2021-08-04 | 東芝プラントシステム株式会社 | Design support equipment, design support methods, and programs |
| NL2022323B1 (en) * | 2018-12-28 | 2020-07-23 | Takkenkamp Groep B V | A method for insulating a ground floor of a building |
-
1998
- 1998-03-16 JP JP08505098A patent/JP3181552B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH11256596A (en) | 1999-09-21 |
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