JPH0480452A - Inspecting method for water-proof sheet and jointing section - Google Patents
Inspecting method for water-proof sheet and jointing sectionInfo
- Publication number
- JPH0480452A JPH0480452A JP2191680A JP19168090A JPH0480452A JP H0480452 A JPH0480452 A JP H0480452A JP 2191680 A JP2191680 A JP 2191680A JP 19168090 A JP19168090 A JP 19168090A JP H0480452 A JPH0480452 A JP H0480452A
- Authority
- JP
- Japan
- Prior art keywords
- hose
- sheets
- water
- waterproof sheet
- waterproof
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims description 13
- 238000007689 inspection Methods 0.000 claims abstract description 3
- 239000012530 fluid Substances 0.000 claims description 11
- 238000010276 construction Methods 0.000 claims description 5
- -1 polyethylene Polymers 0.000 abstract description 5
- 239000004698 Polyethylene Substances 0.000 abstract description 4
- 229920000573 polyethylene Polymers 0.000 abstract description 4
- 230000005540 biological transmission Effects 0.000 abstract 2
- 238000003466 welding Methods 0.000 abstract 2
- 238000012790 confirmation Methods 0.000 abstract 1
- 230000004927 fusion Effects 0.000 description 8
- 229920003002 synthetic resin Polymers 0.000 description 7
- 239000000057 synthetic resin Substances 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 229920002943 EPDM rubber Polymers 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 239000004567 concrete Substances 0.000 description 3
- 239000005038 ethylene vinyl acetate Substances 0.000 description 3
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 238000004078 waterproofing Methods 0.000 description 3
- 239000004709 Chlorinated polyethylene Substances 0.000 description 2
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 239000010426 asphalt Substances 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 229920002681 hypalon Polymers 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 239000005060 rubber Substances 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- DQXBYHZEEUGOBF-UHFFFAOYSA-N but-3-enoic acid;ethene Chemical compound C=C.OC(=O)CC=C DQXBYHZEEUGOBF-UHFFFAOYSA-N 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 238000007500 overflow downdraw method Methods 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 239000011387 rubberized asphalt concrete Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 229920002725 thermoplastic elastomer Polymers 0.000 description 1
- 239000004636 vulcanized rubber Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/82—Testing the joint
- B29C65/8207—Testing the joint by mechanical methods
- B29C65/8246—Pressure tests, e.g. hydrostatic pressure tests
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
- B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
- B29C66/112—Single lapped joints
- B29C66/1122—Single lap to lap joints, i.e. overlap joints
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
- B29C66/23—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being multiple and parallel or being in the form of tessellations
- B29C66/232—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being multiple and parallel or being in the form of tessellations said joint lines being multiple and parallel, i.e. the joint being formed by several parallel joint lines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
- B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
- B29C66/43—Joining a relatively small portion of the surface of said articles
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Revetment (AREA)
- Lining And Supports For Tunnels (AREA)
- Examining Or Testing Airtightness (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は長尺の防水シートを接合した防水シート及びそ
の接合部の検査方法に係り、シート防水工法における接
合部の水密性を検査するためのものである。[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a waterproof sheet made by joining long waterproof sheets together and a method for inspecting the joints thereof, and is used to test the watertightness of joints in sheet waterproofing methods. belongs to.
（従来技術）
近年、建築物の漏水対策や地下鉄、地下駐車場の地下水
の漏水対策、更にはダム、人工池、産業廃棄物処理場等
の水の浸入及び浸出に対してメンブレン方式即ち、皮膜
を形成してこれを防水する方法が盛んに行なわれている
。(Prior art) In recent years, membrane systems have been developed to prevent water leakage in buildings, underground water leakage in subways and underground parking lots, and to prevent water ingress and seepage from dams, artificial ponds, industrial waste treatment plants, etc. Methods of waterproofing this by forming it are widely used.
特に近年になり耐候性、耐水性にすぐれた合成樹脂やゴ
ム製のシートが製造されるようになり、これらのシート
を利用した防水シート工法が各所に使用されている。Particularly in recent years, synthetic resin and rubber sheets with excellent weather resistance and water resistance have been manufactured, and waterproof sheet construction methods using these sheets are used in various places.
かかる防水工法は長尺のシートを例えばコンクリート基
盤上に敷設するものであり、シートの幅同士を若干重ね
合わせ、この部分を熱ローラー等によって軟化し両者を
熱融着させる方法や、接着剤を塗布して接着する方法が
取られており、広面積の敷設に際しても全てこのような
接合方法によって一体化している。Such waterproofing methods involve laying long sheets, for example, on a concrete base, with the widths of the sheets slightly overlapping each other, and this part being softened with a heated roller or the like to heat-fuse the two, or using an adhesive. A method of applying and adhering is used, and even when installing over a wide area, everything is integrated by this joining method.
かかる工法の最も重要な点はこのシート同士の接合が完
全に行なわれ、水密性が保持されているかどうかである
。The most important point in this construction method is whether the sheets are completely joined together and watertightness is maintained.
シート同士を接合させ、次いでこの保護層としてこの上
にモルタル層が設けられるが、もし接合に不完全な個所
があると、その接合の不完全箇所をさがすことは極めて
困難であり全体を再施工することともなってしまう。The sheets are joined together, and then a mortar layer is placed on top of this as a protective layer, but if there are any imperfections in the joining, it is extremely difficult to find the imperfections and the whole thing has to be rebuilt. It also ends up being something you do.
（問題点）
このため、近時は第５図に示すようにシートＡ、Ｂ同士
の接合部分を２列Ｃ及びＤに分けて行ない、この列Ｃ及
びＤ間に形成された非接合部分に圧縮空気を送り、この
空気のもれをもって接合が完全に行なわれているか否か
を判断する方法が提案されている。(Problem) For this reason, recently, the joint between sheets A and B is divided into two rows C and D as shown in Fig. 5, and the unjoined part formed between these rows C and D is A method has been proposed in which compressed air is sent and the leakage of this air is used to determine whether or not the bonding is complete.
しかるに第６図のように圧縮空気をこの二層間に送って
シー１−Ａ、Ｄ間を膨満させる必要があるが、これを押
し開いてシート全長にわたって空気を送りこむには極め
て高い空気圧を必要とすることになり、作業現場への大
きな空気圧縮機をもちこむことは難しい問題があった。However, as shown in Figure 6, it is necessary to send compressed air between these two layers to inflate the space between Seas 1-A and D, but extremely high air pressure is required to push this open and send air over the entire length of the sheet. Therefore, it was difficult to bring a large air compressor to the work site.
（目的）
これは元々から平面のシートを第６図のように無理に膨
満Ｅさせようとするからであり、本発明はかかるシート
接合部の水密性を簡単に検査可能な防水シート及びこの
水密性についての簡便な検査方法を提案することを目的
とするものである。(Purpose) This is because a planar sheet is forcibly expanded E as shown in FIG. The purpose of this study is to propose a simple test method for sex.
（解決手段）
本発明は以上の目的を達成するために次のような構成を
なすものである。(Solution Means) In order to achieve the above object, the present invention has the following configuration.
即ち、本発明の要旨は、長尺の防水シートを基盤上に敷
設してなる防水シート工法において、隣り合う長尺の防
水シートの縁部な、周囲に多数の透孔を設けた柔軟性を
有するホースを挟んで重ね合わせ、この重ね合わせ部の
ホースの周囲のシート同士を水密に接合したことを特徴
とする防水シートにかかり、特にこの接合部の水密性の
検査方法として、前記した防水シートの接合部に埋め込
まれたホース内に高圧流体を送り込み、流体の減圧の有
無を測定することを特徴とする防水シート接合部の検査
方法を提供するにある。That is, the gist of the present invention is to provide flexibility by providing a large number of through holes around the edges of adjacent long waterproof sheets in a waterproof sheet construction method in which long waterproof sheets are laid on a base. The above-mentioned waterproof sheet is used as a method for testing the watertightness of this joint, especially as a method for testing the watertightness of this joint. An object of the present invention is to provide a method for inspecting a joint part of a waterproof sheet, which is characterized by sending high-pressure fluid into a hose embedded in a joint part of the waterproof sheet and measuring whether or not the pressure of the fluid is reduced.
本発明において、長尺の防水シートの縁部を水密に接合
する方法は任意であるが、一般には熱融着性によるか、
或は例えばＣＲを基材とし、溶媒にトルエンを用いた接
着剤をもって接合するものである。In the present invention, any method can be used to watertightly join the edges of the long waterproof sheet, but generally, it is possible to
Alternatively, for example, CR is used as a base material and bonded with an adhesive using toluene as a solvent.
本発明において使用される長尺の防水シートの例として
、合成樹脂シートの例としてはポリエチレン、ポリプロ
ピレン、塩素化ポリエチレン、クロロスルフォン化ポリ
エチレン、エチレン酢酸ビニル、塩化ビニル等のシート
が挙げられ、一方ゴムシートの例としてはＥＰＤＭ／Ｉ
ＩＲｆｉ合組成物、ＥＰＤＭ、ＥＰＤＭ熱可塑性エラス
トマー等のシートが例示でき、更にアスファルト系のシ
ートとしてゴム化アスファルト、樹脂化アスファルト等
からなるシートが挙げられる。As an example of the long waterproof sheet used in the present invention, examples of synthetic resin sheets include sheets of polyethylene, polypropylene, chlorinated polyethylene, chlorosulfonated polyethylene, ethylene vinyl acetate, vinyl chloride, etc. An example of a sheet is EPDM/I
Examples include sheets made of IRfi composite composition, EPDM, EPDM thermoplastic elastomer, etc. Further, examples of asphalt-based sheets include sheets made of rubberized asphalt, resinized asphalt, etc.
またシートの接合部に埋め込まれるホースは、合成樹脂
ホースの例としては、例えばポリエチレン、塩化ビニル
、エチレン酢酸ビニル、塩素化ポリエチレン、クロロス
ルフォン化ポリエチレン等のオレフィン系及びこれらの
混合物よりなるホース、或はゴムホースとしてはＳＢＲ
，ＢＲｌＩＲｌＣＲ，ＥＰＴ系の加硫及び非加硫ゴムよ
りなるホースが挙げられる。Examples of synthetic resin hoses for the hoses embedded in the joints of the sheets include hoses made of olefins such as polyethylene, vinyl chloride, ethylene vinyl acetate, chlorinated polyethylene, and chlorosulfonated polyethylene, and mixtures thereof; is SBR as a rubber hose.
, BRlIRlCR, and EPT-based vulcanized and non-vulcanized rubber hoses.
これらホースは、好ましくは防水シート本体よりも高融
点、高軟化点を有するゴム及び合成樹脂製のホースを使
用するのが好ましく、シート同士の接合時にホースに設
けられた透孔が閉塞しないものがよい。It is preferable to use hoses made of rubber or synthetic resin that have a higher melting point and softening point than the main body of the tarpaulin sheet, and should not clog the through holes provided in the hose when the sheets are joined together. good.
かかるホースに形成される透孔としては円孔、スリット
、切り込み等を含み特に制限されない。The holes formed in such a hose include circular holes, slits, notches, etc., and are not particularly limited.
また、使用される高圧流体も特に制限はない。Furthermore, there is no particular restriction on the high pressure fluid used.
（作用）
本発明は、長尺の防水シートよりなる防水シートの、接
合部に特殊構造を持たせた防水シートにかかり、接合部
の水密性の完全性を検査するために、予め多数の透孔を
設けたホースを入れてシート同士の接合部を形成するも
のである。(Function) The present invention covers a waterproof sheet consisting of a long waterproof sheet and has a special structure at the joints, and in order to inspect the integrity of the watertightness of the joints, a large number of transparent sheets are installed in advance. A hose with a hole is inserted to form a joint between the sheets.
そしてこのホースに圧縮空気等を送りこむことによって
、接合部に埋め込まれたホースが容易に膨満し、このホ
ース内に送られた流体は接合の不完全な個所があれば透
孔よりこの個所を通って外部へ逃げることになる。従っ
てこの流体の減圧状況を測定すれば、容易に接合の完全
性をチエツクできることになったものであり、元来、丸
く膨らみやすいホース類を用いたことによって容易に検
査ができるようになったのである。By sending compressed air, etc. into this hose, the hose embedded in the joint easily expands, and if there is an incomplete joint, the fluid sent into this hose will pass through the hole through the hole. They end up fleeing outside. Therefore, by measuring the depressurization status of this fluid, it became possible to easily check the integrity of the joint, and this was originally made possible by using hoses that were easy to expand. be.
（具体例） 以下具体例をもって更に詳しく説明する。(Concrete example) This will be explained in more detail below using specific examples.
第１図は本発明に基づくの防水シートの構造を示す略図
であって、防水用の合成樹脂シートＡ、ＢとしてＥＶＡ
製の厚さ０．８ｍｍ、長さ２５ｍを有するシートを用い
てコンクリート基盤上に敷設した。FIG. 1 is a schematic diagram showing the structure of a waterproof sheet based on the present invention, and EVA is used as waterproof synthetic resin sheets A and B.
A sheet with a thickness of 0.8 mm and a length of 25 m was laid on a concrete base.
そして熱融着のために隣り合う合成樹脂シートＡ、Ｂを
幅３０ｍｍをもって重ね合わせた。Adjacent synthetic resin sheets A and B were then overlapped with a width of 30 mm for heat fusion.
かかる重ね合せに際してはポリエチレン製のホースＦを
介在させるものであって、このホースＦには多数の透孔
Ｇが予め備えられている。During such overlapping, a hose F made of polyethylene is interposed, and this hose F is provided with a large number of through holes G in advance.
第２図は、このホースＦ単体を取り出して圧縮流体によ
って膨満した状態を示すものである。FIG. 2 shows a state in which the hose F is taken out and inflated with compressed fluid.
さて、このようにホースＦを挟んだ重ね合せ部において
、ホースＦの両側を従来の方法によって熱融着Ｃ，Ｄす
るものである。Now, at the overlapping portion where the hose F is sandwiched in this manner, both sides of the hose F are heat-sealed C and D by a conventional method.
熱融着の検査の実際は、まずホースＦ両端部より圧縮空
気をホース４Ｆに圧送してホースＦを第３図に示すよう
に膨満Ｅさせる。In the actual thermal fusion inspection, compressed air is first forced into the hose 4F from both ends of the hose F to inflate the hose F as shown in FIG.
このホースＦは元来丸く膨満Ｃしやすいので、ホースＦ
の長さが著しく長いものであっても容易に空気を圧送で
きる。This hose F is originally round and easily swells C, so the hose F
Air can be easily pumped even if the length is extremely long.
この圧送された空気はホースＦに設けた透孔Ｇを通して
外部への出口をさがすが、熱融着が完全であると逃げ場
がな（圧送された空気の圧力は減することはな（、従っ
て熱融着が完全であったことが分かる。This pressurized air searches for an exit to the outside through the through hole G provided in the hose F, but if the heat fusion is complete, there is no escape (the pressure of the pressurized air will not decrease (therefore, the pressure of the pressurized air will not decrease). It can be seen that the heat fusion was complete.
一方、第４図に示すように熱融着の一部に不完全な個所
Ｈがあると、圧縮空気は透孔Ｇ及び二の不完全な個所Ｈ
を通って外部に逃げてしまう（矢印Ｙ）ことになり、圧
送された空気が徐々に圧力を減じることになる。On the other hand, as shown in Fig. 4, if there is an incomplete part H in a part of the heat fusion, the compressed air will flow through the hole G and the second incomplete part H.
The air will escape to the outside through the air (arrow Y), and the pressure of the pumped air will gradually decrease.
このことによって熱融着の完全性が検査されることにな
るのである。This allows the integrity of the heat fusion to be tested.
（効果）
本発明は以上のように膨満しやすいホースをシートの接
合部へ介することによってなる防水シートであって、こ
こに圧縮流体を圧送することによって簡単に接合部の水
密性の完全性を検査することが出来るので、実用価値は
著しく高いものである。(Effects) As described above, the present invention is a waterproof sheet made by passing a hose that easily expands to the joints of sheets, and by pumping compressed fluid there, the watertightness of the joints can be easily maintained. Since it can be inspected, its practical value is extremely high.
第１図は本発明に基づくの防水シートの熱融着部を中心
とする斜視図、第２図はホース単体を取り出して圧縮流
体によって膨満した状態を示す斜視図、第３図はホース
内に圧縮流体を圧送してホースを膨満させた状態の断面
図、第４図は熱融着の一部に不完全な個所における圧縮
空気の外部への逃出状態を示す断面図、第５図は従来の
熱融着法による防水シートの主要部の断面図、第６図は
かかる従来の防水シートに圧縮空気を送ってシート間を
膨満させた場合の断面図である。
Ａ、Ｂ・・・・・・合成樹脂シート
Ｃ，Ｄ・・・・・・熱融着
Ｅ−・・・・・膨満
Ｆ・・・・・・ホース
Ｇ・・・・・・透孔
Ｈ・・・・・・熱融着の不完全な個所
特許出願人 株式会社 ブリヂストン
第３図Fig. 1 is a perspective view centered on the heat-sealed portion of the waterproof sheet based on the present invention, Fig. 2 is a perspective view showing the hose itself taken out and inflated with compressed fluid, and Fig. 3 A cross-sectional view of the hose inflated by pumping compressed fluid; FIG. 4 is a cross-sectional view showing the state in which compressed air escapes to the outside at a part of the heat seal that is incomplete; FIG. FIG. 6 is a cross-sectional view of the main parts of a conventional waterproof sheet made by a heat fusion method, and is a cross-sectional view when compressed air is sent to the conventional waterproof sheet to inflate the space between the sheets. A, B...Synthetic resin sheet C, D...Heat fusion E-...Swelling F...Hose G...Through hole H ...Incomplete heat fusion Patent applicant Bridgestone Corporation Figure 3
Claims (2)
ート工法において、隣り合う長尺の防水シートの縁部を
、周囲に多数の透孔を設けた柔軟性を有するホースを挟
んで重ね合わせ、この重ね合わせ部のホースの周囲のシ
ート同士を水密に接合したことを特徴とする防水シート
。(1) In the waterproof sheet construction method, in which long waterproof sheets are laid on a base, the edges of adjacent long waterproof sheets are sandwiched between flexible hoses with many through holes around them. A waterproof sheet characterized by overlapping and watertightly joining the sheets around the hose in this overlapping part.
ート工法において、隣り合う長尺の防水シートの縁部を
、周囲に多数の透孔を設けた柔軟性を有するホースを挟
んで重ね合わせ、この重ね合わせ部のホースの周囲のシ
ート同士を接合し、その後該ホース内に高圧流体を送り
込み、流体の減圧の有無を測定することを特徴とする防
水シート接合部の水密性の検査方法。(2) In the waterproof sheet construction method, in which long waterproof sheets are laid on a base, the edges of adjacent long waterproof sheets are sandwiched between flexible hoses with many perforations around them. Inspection of watertightness of waterproof sheet joints, which is characterized by overlapping, joining the sheets around the hose in this overlapping part, then feeding high-pressure fluid into the hose, and measuring the presence or absence of fluid pressure reduction. Method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2191680A JPH0480452A (en) | 1990-07-19 | 1990-07-19 | Inspecting method for water-proof sheet and jointing section |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2191680A JPH0480452A (en) | 1990-07-19 | 1990-07-19 | Inspecting method for water-proof sheet and jointing section |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0480452A true JPH0480452A (en) | 1992-03-13 |
Family
ID=16278674
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2191680A Pending JPH0480452A (en) | 1990-07-19 | 1990-07-19 | Inspecting method for water-proof sheet and jointing section |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0480452A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101142845B1 (en) * | 2011-11-15 | 2012-05-08 | (주)생태공간 | Drainage construction structure and method for reduction of runoff in paddy fields |
| WO2014076392A1 (en) | 2012-11-19 | 2014-05-22 | Icopal Sas | Pre-fabricated bituminous sealing membrane or geomembrane |
| JP2021096101A (en) * | 2019-12-16 | 2021-06-24 | フジモリ産業株式会社 | System and method for inspecting waterproof sheet joint |
| KR20230142970A (en) * | 2022-04-04 | 2023-10-11 | 한신호 | Waterproofing construction |
-
1990
- 1990-07-19 JP JP2191680A patent/JPH0480452A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101142845B1 (en) * | 2011-11-15 | 2012-05-08 | (주)생태공간 | Drainage construction structure and method for reduction of runoff in paddy fields |
| WO2014076392A1 (en) | 2012-11-19 | 2014-05-22 | Icopal Sas | Pre-fabricated bituminous sealing membrane or geomembrane |
| FR2998313A1 (en) * | 2012-11-19 | 2014-05-23 | Icopal Sas | PREFABRICATED BITUMINOUS SEALING MEMBRANE OR GEOMEMBRANE |
| JP2021096101A (en) * | 2019-12-16 | 2021-06-24 | フジモリ産業株式会社 | System and method for inspecting waterproof sheet joint |
| KR20230142970A (en) * | 2022-04-04 | 2023-10-11 | 한신호 | Waterproofing construction |
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