JPH05132967A - Float-prevention device of underground chamber and water cut-off bag for the device - Google Patents
Float-prevention device of underground chamber and water cut-off bag for the deviceInfo
- Publication number
- JPH05132967A JPH05132967A JP3351124A JP35112491A JPH05132967A JP H05132967 A JPH05132967 A JP H05132967A JP 3351124 A JP3351124 A JP 3351124A JP 35112491 A JP35112491 A JP 35112491A JP H05132967 A JPH05132967 A JP H05132967A
- Authority
- JP
- Japan
- Prior art keywords
- water
- basement
- bag
- bag body
- underground
- 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.)
- Granted
Links
Landscapes
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、地下室が地下水位の上
昇により浮力を受けて浮上することを防止する地下室浮
上防止装置及びこの装置の実施に利用される遮水袋に関
する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a basement room floating prevention device for preventing a basement room from being floated by buoyancy due to a rise in groundwater level, and a waterproof bag used for implementing this device.
【０００２】[0002]
【従来の技術】地下室を造った場合、梅雨期等に地下水
位が上昇したり、地下室周囲の埋め戻し個所に雨水等が
流入して、その浮力により地下室が浮上させられること
が起こる。2. Description of the Related Art When a basement is built, the groundwater level rises during the rainy season or rainwater flows into the backfill area around the basement, and the buoyancy causes the basement to float.
【０００３】この対策として、従来は、地下室を形成す
るコンクリートを必要以上に厚くしてその重量により押
さえ付けたり、上部の建築物の荷重を加えたり、あるい
は基礎コンクリートにアンカーを設けて地下室と結合し
たりすることが行われている。As a countermeasure against this, conventionally, the concrete forming the basement is made thicker than necessary and pressed down by its weight, the load of the building above is applied, or an anchor is provided in the foundation concrete to connect with the basement. Things are being done.
【０００４】[0004]
【発明が解決しようとする課題】重量による対策では、
地下水位の低いときには過剰な荷重を加えることになる
ので、地下室の沈下を生じる危険がある。特に地下水位
の変動を生じる場所は、地盤が強固でないことが多く、
この危険は無視できない。またアンカーを設ける対策で
は、施工が煩雑になるほか、アンカー部分により地下室
の密閉性が損なわれ、漏水を生じやすい等の不都合があ
る。[Problems to be Solved by the Invention] In the measure by weight,
When the groundwater level is low, an excessive load is applied, and there is a risk of subsidence in the basement. Especially in places where fluctuations in groundwater level occur, the ground is often not strong,
This danger cannot be ignored. In addition, the measures to provide the anchors have the disadvantages that the construction becomes complicated and that the anchor portions impair the airtightness of the basement, which easily causes water leakage.
【０００５】そこで、本発明は過大な重量を加えること
なく、かつ密閉性、施工性を損なうことのない浮上防止
手段を得ることを目的としたものである。Therefore, an object of the present invention is to provide a floatation preventing means which does not impair the hermeticity and the workability without adding an excessive weight.
【０００６】また、地下室を造るに当り、密閉性、施工
性に優れた方法として遮水袋工法、すなわち、穴を掘削
して、遮水シートよりなる袋を入れ、この中にコンクリ
ートパネル等で地下室を形成し、周囲を埋め戻す工法が
知られている（特公昭５３−８１３９号公報参照）。こ
の工法において、上記浮上防止手段を実施するための遮
水袋を得ることも、本発明の目的である。[0006] In constructing a basement, as a method that is excellent in hermeticity and workability, a waterproof bag construction method, that is, a hole is drilled and a bag made of a waterproof sheet is put into the basement. A method of forming a basement and filling the surrounding area is known (see Japanese Patent Publication No. 53-8139). In this construction method, it is also an object of the present invention to obtain a waterproof bag for implementing the above-mentioned floating prevention means.
【０００７】[0007]
【課題を解決するための手段】本発明は、密閉構造とな
っている地下室の外周に沿って延び、地下水の浮上力に
耐えられる地下水位に位置し、周囲から水を集めて流す
ことのできる集水路と、この集水路からの水を集める溜
め桝と、この溜め桝内に一定量以上の水が溜まったとき
に作動して水を排出する排水ポンプとからなる地下室浮
上防止装置である。The present invention extends along the outer circumference of a basement having a closed structure, is located at a groundwater level that can withstand the levitation force of groundwater, and can collect and flow water from the surroundings. A basement floating prevention device is composed of a water collection channel, a sump basin for collecting water from the water collection channel, and a drainage pump which is activated when a certain amount or more of water is accumulated in the sump to discharge the water.
【０００８】また、本発明は、遮水シートよりなり、地
下室の外周面及び底面を被い、密閉構造とする袋体と、
この袋体の外周に沿って設けられ、設置時に地下水の浮
上力に耐えられる水位に位置し、周囲から水を集めて流
すことのできる集水路とからなる地下室浮上防止装置用
遮水袋をも包含する。さらに、この集水路が、透水性を
有するシートよりなり、上下端部が袋体外周面に接合さ
れる表面部と、網体、短紐体等の外部からの圧縮力に耐
え、水を通過させる材料よりなり、前記表面部と袋体と
の間に設けられる芯部とから形成され、袋体と共に変形
可能となっているものも包含する。The present invention also includes a bag body which is made of a water-blocking sheet and covers the outer peripheral surface and the bottom surface of the basement to form a hermetically sealed structure.
A water barrier bag for the basement anti-floating prevention device, which is provided along the outer circumference of this bag, is located at a water level that can withstand the levitation force of groundwater during installation, and has a water collection channel that can collect and flow water from the surrounding area. Include. Further, this water collecting passage is made of a water-permeable sheet, and the upper and lower end portions of the surface portion are joined to the outer peripheral surface of the bag body, and withstand the compressive force from the outside such as the net body and the short string body, and pass the water. It also includes a material which is made of a material to be formed, is formed from the surface portion and a core portion provided between the bag body, and is deformable together with the bag body.
【０００９】[0009]
【実施例】以下、本発明を図示する実施例について、図
面を参照しつつ、具体的に説明する。Embodiments of the present invention will be specifically described below with reference to the drawings.
【００１０】図１に示す浮上防止装置１０は、地下室１
１に設置されている。この地下室１１は、コンクリート
製の箱体１２の外周面及び底面にビニール、ゴム等の遮
水シートよりなる袋体１３を設けて密閉構造としたもの
であり、部屋１４のほかに空堀１５を有する。なお、部
屋１４上には上部建築物１６が設けられる。The anti-floating device 10 shown in FIG.
It is installed in 1. The basement 11 has a closed structure in which a bag body 13 made of a water-blocking sheet such as vinyl or rubber is provided on the outer peripheral surface and the bottom surface of a concrete box body 12 to have a closed structure. .. An upper building 16 is provided on the room 14.
【００１１】この地下室１１の外周には集水路１７が水
平に一周するよう設けられる。この集水路１７の高さ
は、地下室１１が地下水の浮上力に耐えられる限界の地
下水位より僅かに低い位置に設定される。この集水路１
７の構造は、周囲から水を集めて流すことのできるもの
であれば任意の構成とすることができ、例えば、パイプ
の周面に多数の小孔を設けた農業用地下排水管を用いる
ことができるが、この例では後述する図３に示す構成の
ものとしている。A water collecting channel 17 is provided on the outer circumference of the basement 11 so as to make a horizontal circuit. The height of the water collection channel 17 is set to a position slightly lower than the limit groundwater level at which the basement 11 can withstand the floating force of groundwater. This catchment 1
The structure of 7 can be any structure as long as it can collect and flow water from the surroundings, for example, using an underground underground drainage pipe for agriculture with many small holes provided on the peripheral surface of the pipe. However, in this example, the configuration shown in FIG. 3 described later is adopted.
【００１２】この集水路１７の１か所に落下パイプ１８
が接続され、この落下パイプ１８は袋体１３、地下室１
１のコンクリート壁を貫通して、空堀１５に形成された
溜め桝１９に延び、集水路１７からの水をこの溜め桝１
９に導く。この溜め桝１９内には、排水ポンプ２０が設
けられ、溜め桝１９内に一定量以上の水が溜まったとき
自動的に作動して、この水を排水パイプ２１を通して外
部に排出する。A drop pipe 18 is provided at one location of this water collection channel 17.
The fall pipe 18 is connected to the bag 13, the basement 1
1 penetrates through the concrete wall and extends to a sump 19 formed in the empty trench 15, and water from the water collecting channel 17 is stored in this sump 1
Lead to 9. A drainage pump 20 is provided in the sump 19 and automatically operates when a certain amount or more of water is accumulated in the sump 19 to discharge the water to the outside through a drainage pipe 21.
【００１３】この浮上防止装置１０は以上の構成である
から、次のように作動する。地下水位が上昇し、集水路
１７の高さ２２に達すると、水は集水路１７に流入し、
落下パイプ１８を経て溜め桝１９に溜まる。この溜まっ
た水は、排水ポンプ２０により排出され、常に一定量以
下にされる。こうして地下室１１の周囲の地下水位は所
定限界以下に維持され、過大な浮上力が地下室１１に作
用することが防止される。Since the floating prevention device 10 has the above-mentioned structure, it operates as follows. When the groundwater level rises and reaches the height 22 of the catchment 17, water flows into the catchment 17,
It passes through the falling pipe 18 and collects in the sump 19. The accumulated water is discharged by the drainage pump 20 and is constantly kept at a certain amount or less. In this way, the groundwater level around the basement 11 is maintained below a predetermined limit, and an excessive levitation force is prevented from acting on the basement 11.
【００１４】なお、この作動から明らかなように、集水
路１７を設置する高さは、限界の水位より過度に低くす
ると排水ポンプ２０の負担が大きくなるので、限界に近
い高さにすることが望ましい。As is apparent from this operation, if the height of the water collecting passage 17 is set to be too lower than the limit water level, the drainage pump 20 will be overloaded, so the height should be close to the limit. desirable.
【００１５】図２に示す他の浮上防止装置３０は、地下
室３１に設置されたものである。この地下室３１は、コ
ンクリート製の箱体３２外周面及び底面に遮水シートよ
りなる袋体３３を設けて密閉構造としたものであり、部
屋３４を有するだけで空堀を有しない。なお、上部には
上部建築物３５が設けられる。Another floating prevention device 30 shown in FIG. 2 is installed in a basement 31. The basement 31 has a closed structure in which a bag body 33 made of a water blocking sheet is provided on the outer peripheral surface and the bottom surface of a concrete box body 32, and has a room 34 but no empty trench. An upper building 35 is provided on the upper part.
【００１６】この地下室３１の外周には前記例と同様に
集水路３６が設けられる。この地下室３１に隣接して溜
め桝３７が設置されている。この溜め桝３７と集水路３
６とは通孔３８で連通され、このため集水路３６からの
水はこの溜め桝３８に導かれる。この溜め桝３８内に
は、排水ポンプ３９が設けられ、溜め桝３８内に一定量
以上の水が溜まったとき自動的に作動して、この水を排
水パイプ４０を通して外部に排出する。A water collecting channel 36 is provided on the outer periphery of the basement 31 in the same manner as in the above example. A reservoir 37 is installed adjacent to the basement 31. This sump basin 37 and water collection channel 3
6 is communicated with the through hole 38, so that the water from the water collecting passage 36 is guided to the sump 38. A drainage pump 39 is provided in the sump 38 and automatically operates when a certain amount or more of water is accumulated in the sump 38 to discharge the water to the outside through a drainage pipe 40.
【００１７】この浮上防止装置３０は以上の構成である
から、前記装置１０と同様に作動する。Since the floating prevention device 30 has the above-mentioned structure, it operates similarly to the device 10.
【００１８】上記各装置では袋体に集水路を設けた遮水
袋を使用している。この構成を図３に示す遮水袋５０に
より具体的に説明する。Each of the above-mentioned devices uses a water-impervious bag having a water collecting passage in the bag. This structure will be specifically described with reference to the water-blocking bag 50 shown in FIG.
【００１９】この遮水袋５０において、袋体５１は、ビ
ニール、ゴム等の遮水シートよりなり、地下室５２の外
周を被い、密閉構造とするものであり、施工の前に工場
で地下室となる箱体の形状に形成される。この袋体５１
の外周に沿って集水路５３が設けられ、設置時に地下水
の浮上力に耐えられる水位に位置するようになってい
る。In this waterproof bag 50, the bag body 51 is made of a waterproof sheet such as vinyl or rubber, and covers the outer circumference of the basement 52 to form a closed structure. It is formed in the shape of a box. This bag 51
A water collecting channel 53 is provided along the outer periphery of the water tank so that it is located at a water level that can withstand the levitation force of ground water during installation.
【００２０】集水路５３は、表面部５４と芯部５５とか
らなる。表面部５４は、布、多数の孔を設けたビニルシ
ート等の透水性を有するシートよりなり、上下端部が袋
体５１外周面に接着剤等を用いて接合されている。さら
に、この例では粘着テープ５６，…により補強付着され
ている。芯部５５は、表面部５４と袋体５１との間に設
けられ、サランネット等の網体、梱包用充填材として用
いられる短紐体等の外部からの圧縮力に耐え、水を通過
させる性質を持った材料よりなる。The water collecting passage 53 comprises a surface portion 54 and a core portion 55. The surface portion 54 is made of a water-permeable sheet such as cloth or a vinyl sheet having a large number of holes, and its upper and lower end portions are joined to the outer peripheral surface of the bag body 51 with an adhesive or the like. Further, in this example, they are reinforced and attached by the adhesive tapes 56, .... The core portion 55 is provided between the surface portion 54 and the bag body 51, withstands a compressive force from the outside such as a net body such as a saran net or a short string used as a packing filler, and allows water to pass therethrough. It is made of a material with properties.
【００２１】この遮水袋５０は以上の構成であるから、
集水路５２は袋体５１と共に変形可能となる。したがっ
て、この遮水袋は、従来の遮水袋工法に変更を加えるこ
となく使用することができる。すなわち、工場で所定形
状に形成した後、従来の袋体と同様に折り畳んで施工現
場に運搬し、現場では、穴を掘削して、中に入れ、内部
にコンクリートパネル等で地下室を形成し、周囲を埋め
戻すようにして使用される。このとき、当然、集水路を
設置するために特別の作業をすることは不要である。Since this waterproof bag 50 has the above-mentioned structure,
The water collection channel 52 can be deformed together with the bag body 51. Therefore, this waterproof bag can be used without changing the conventional waterproof bag construction method. That is, after being formed into a predetermined shape in the factory, it is folded and transported to a construction site like a conventional bag body, and at the site, a hole is drilled, put inside, and a basement is formed with a concrete panel or the like inside, Used to fill the surrounding area. At this time, naturally, it is not necessary to perform special work for installing the water collection channel.
【００２２】[0022]
【発明の効果】本発明の地下室浮上防止装置は、上述の
ように、地下水位が上昇したとき、集水路により地下水
を集め、これを排水ポンプで自動的に排出し、地下水に
よる浮上力が過大にならないようにしているので、地下
室の浮上は防止される。しかも、地下室の重量を増大す
るものではないので、地下室の沈下を生じることはな
く、またアンカーを用いるものではないので、施工も容
易であり、アンカー部分からの漏水等の不都合も生じな
い。As described above, when the groundwater level rises, the underground levitation prevention device of the present invention collects groundwater through a water collection channel and automatically discharges it with a drainage pump, resulting in an excessive levitation force due to groundwater. Since it doesn't become, it prevents the basement from floating. Moreover, since it does not increase the weight of the basement, it does not cause the subsidence of the basement, and since it does not use an anchor, the construction is easy, and there is no inconvenience such as leakage of water from the anchor portion.
【００２３】また、本発明の地下室浮上防止装置用遮水
袋は、袋体に集水路を設ける構成であるので、これを用
いることにより、集水路設置の作業が容易化され、作業
性が向上する。Further, since the water shielding bag for a basement floating prevention device of the present invention has a structure in which a water collecting channel is provided in the bag body, by using this, the work of installing the water collecting channel is facilitated and the workability is improved. To do.
【００２４】さらに、この遮水袋に変形可能な集水路を
設けると、集水路設置の作業が不要となり、しかも従来
の遮水袋工が全く変更を加えることなく実施することが
でき、遮水袋工法特有の効率件が損なわれることもな
い。Further, if a deformable water collecting channel is provided in this water blocking bag, the work of installing the water collecting channel becomes unnecessary, and the conventional water blocking bag can be carried out without any change. The efficiency requirements peculiar to the bag construction method are not impaired.
【図１】本発明の地下室浮上防止装置の一実施例の断面
図である。FIG. 1 is a cross-sectional view of an embodiment of a basement floating prevention device of the present invention.
【図２】本発明の地下室浮上防止装置の他の実施例の断
面図である。FIG. 2 is a cross-sectional view of another embodiment of the basement floating prevention device of the present invention.
【図３】本発明の地下室浮上防止装置用遮水袋の一実施
例の一部を破断して示す斜視図である。FIG. 3 is a partially cutaway perspective view showing an embodiment of a water barrier bag for a basement floating prevention device of the present invention.
１０，３０…地下室浮上防止装置、１１，３１…地下
室、１３，３３…袋体、１７，３６…集水路、１９，３
７…溜め桝、２０，３９…排水ポンプ、５０…地下室浮
上防止装置用遮水袋、５１…袋体、５３…集水路、５４
…表面部、５５…芯部。10, 30 ... Basement levitation prevention device, 11, 31 ... Basement, 13, 33 ... Bag body, 17, 36 ... Water collection channel, 19, 3
7 ... Reservoir, 20, 39 ... Drainage pump, 50 ... Impermeable bag for basement floating prevention device, 51 ... Bag body, 53 ... Water collecting channel, 54
... surface part, 55 ... core part.
Claims (3)
って延び、地下水の浮上力に耐えられる地下水位に位置
し、周囲から水を集めて流すことのできる集水路と、こ
の集水路からの水を集める溜め桝と、この溜め桝内に一
定量以上の水が溜まったときに作動して水を排出する排
水ポンプとからなる地下室浮上防止装置。1. A water collecting channel that extends along the outer periphery of a basement having a closed structure, is located at a groundwater level that can withstand the levitation force of groundwater, and can collect and flow water from the surroundings, and from this water channel. A basement ascent prevention device consisting of a sump for collecting water and a drainage pump that operates when a certain amount of water has accumulated in the sump and drains the water.
び底面を被い、密閉構造とする袋体と、この袋体の外周
に沿って設けられ、設置時に地下水の浮上力に耐えられ
る水位に位置し、周囲から水を集めて流すことのできる
集水路とからなる地下室浮上防止装置用遮水袋。2. A bag body which is made of a water-blocking sheet and covers the outer peripheral surface and the bottom surface of the basement and has a closed structure, and a water level which is provided along the outer periphery of the bag body and can withstand the levitation force of ground water during installation. The water shield bag for the basement anti-floatation device, which is located at, and consists of a water collection channel that collects water from the surroundings and allows it to flow.
有するシートよりなり、上下端部が袋体外周面に接合さ
れる表面部と、網体、短紐体等の外部からの圧縮力に耐
え、水を通過させる材料よりなり、前記表面部と袋体と
の間に設けられる芯部とから形成され、袋体と共に変形
可能となっていることを特徴とする地下室浮上防止装置
用遮水袋。3. The water collecting passage according to claim 2, wherein the water collecting passage is made of a water-permeable sheet, and the upper and lower end portions are joined to the outer peripheral surface of the bag body, and a net body, a short cord body, or the like is compressed from the outside. A basement anti-floating device, which is made of a material that withstands force and allows water to pass therethrough, is formed of the core portion provided between the surface portion and the bag body, and is deformable together with the bag body. Water barrier bag.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3351124A JPH0786242B2 (en) | 1991-11-09 | 1991-11-09 | Basement floating prevention device and waterproof bag for the device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3351124A JPH0786242B2 (en) | 1991-11-09 | 1991-11-09 | Basement floating prevention device and waterproof bag for the device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05132967A true JPH05132967A (en) | 1993-05-28 |
| JPH0786242B2 JPH0786242B2 (en) | 1995-09-20 |
Family
ID=18415214
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3351124A Expired - Lifetime JPH0786242B2 (en) | 1991-11-09 | 1991-11-09 | Basement floating prevention device and waterproof bag for the device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0786242B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10307562A1 (en) * | 2003-02-18 | 2004-09-09 | Baugrundinstitut Franke-Meißner Berlin-Brandenburg GmbH | Method for drying out and keeping dry buildings involves provision of at least one drainage opening for targeted water entry through the ground plate, and at least one drainage channel |
| CN104594920A (en) * | 2014-11-28 | 2015-05-06 | 浙江省建筑设计研究院 | Method and device for preventing tunnel from floating |
| CN114032971A (en) * | 2021-11-01 | 2022-02-11 | 浙江科技学院 | Device and method for preventing underground structure from liquefying and floating |
| CN114382109A (en) * | 2022-01-17 | 2022-04-22 | 孙华 | Anti-floating underground space and underground garage |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104196046B (en) * | 2014-08-30 | 2016-06-22 | 上海联境建筑工程设计有限公司 | Reduce the water proof drainage system of underground hydrostatic water table |
| CN112177058B (en) * | 2020-09-15 | 2022-02-18 | 同济大学 | Automatic gate valve pressure release anti system that floats of basement |
-
1991
- 1991-11-09 JP JP3351124A patent/JPH0786242B2/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10307562A1 (en) * | 2003-02-18 | 2004-09-09 | Baugrundinstitut Franke-Meißner Berlin-Brandenburg GmbH | Method for drying out and keeping dry buildings involves provision of at least one drainage opening for targeted water entry through the ground plate, and at least one drainage channel |
| DE10307562B4 (en) * | 2003-02-18 | 2007-10-11 | Baugrundinstitut Franke-Meißner Berlin-Brandenburg GmbH | Method and arrangement for drying and keeping dry structures |
| CN104594920A (en) * | 2014-11-28 | 2015-05-06 | 浙江省建筑设计研究院 | Method and device for preventing tunnel from floating |
| CN114032971A (en) * | 2021-11-01 | 2022-02-11 | 浙江科技学院 | Device and method for preventing underground structure from liquefying and floating |
| CN114032971B (en) * | 2021-11-01 | 2022-11-25 | 浙江科技学院 | Device and method for preventing underground structure from liquefying and floating |
| CN114382109A (en) * | 2022-01-17 | 2022-04-22 | 孙华 | Anti-floating underground space and underground garage |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0786242B2 (en) | 1995-09-20 |
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