JPH0637765B2 - Drain material for drainage method - Google Patents
Drain material for drainage methodInfo
- Publication number
- JPH0637765B2 JPH0637765B2 JP57227035A JP22703582A JPH0637765B2 JP H0637765 B2 JPH0637765 B2 JP H0637765B2 JP 57227035 A JP57227035 A JP 57227035A JP 22703582 A JP22703582 A JP 22703582A JP H0637765 B2 JPH0637765 B2 JP H0637765B2
- Authority
- JP
- Japan
- Prior art keywords
- fiber
- warp
- weft
- woven fabric
- drain material
- 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
- 239000000463 material Substances 0.000 title claims description 15
- 238000000034 method Methods 0.000 title claims description 4
- 239000000835 fiber Substances 0.000 claims description 73
- 239000002759 woven fabric Substances 0.000 claims description 15
- 230000002209 hydrophobic effect Effects 0.000 claims description 6
- 239000004744 fabric Substances 0.000 claims description 4
- 238000010030 laminating Methods 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 17
- 239000002689 soil Substances 0.000 description 12
- 239000004745 nonwoven fabric Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 230000035699 permeability Effects 0.000 description 6
- 238000009941 weaving Methods 0.000 description 6
- 239000011800 void material Substances 0.000 description 4
- 229920002994 synthetic fiber Polymers 0.000 description 3
- 239000012209 synthetic fiber Substances 0.000 description 3
- 229920002972 Acrylic fiber Polymers 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000004952 Polyamide Substances 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- 239000004372 Polyvinyl alcohol Substances 0.000 description 2
- 229920002647 polyamide Polymers 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 229920000098 polyolefin Polymers 0.000 description 2
- -1 polypropylene Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 229920002451 polyvinyl alcohol Polymers 0.000 description 2
- 229920000915 polyvinyl chloride Polymers 0.000 description 2
- 239000004800 polyvinyl chloride Substances 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 239000002131 composite material Substances 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000009958 sewing Methods 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/02—Improving by compacting
- E02D3/10—Improving by compacting by watering, draining, de-aerating or blasting, e.g. by installing sand or wick drains
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Structural Engineering (AREA)
- Agronomy & Crop Science (AREA)
- Environmental & Geological Engineering (AREA)
- Soil Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は土木工事における排水工法のためのドレーン材
に関するものである。The present invention relates to a drain material for a drainage method in civil engineering work.
従来から道路、崖、排水路、えん堤などの土中に埋設し
て、土中の水分を吸収して外部に排出させるためにドレ
ーン材が用いられているが、このためのドレーン材とし
ては合成樹脂製や鉄製等の有孔管、合成繊維製不織布を
管状としたもの、あるいは特開昭５１−７２１２０号公
報に見るように、撚りをかけた繊維体を並列集合体に編
んだもの、不織布層にスパイラルコイルを配設したも
の、等種々のものが提案されている。Conventionally, drain materials have been used to bury them in soil such as roads, cliffs, drainage canals, and embankments to absorb moisture in the soil and discharge it to the outside. A perforated tube made of synthetic resin or iron, a tube made of synthetic fiber non-woven fabric, or a braided body of twisted fibrous bodies as seen in JP-A-51-72120. Various types have been proposed, such as a non-woven fabric layer provided with a spiral coil.
これらのドレーン材は土中に打込まれたり、敷設されて
用いられるために強度と剛性が必要であり、また当然の
ことながら集水性や透水性が良好であることが要求され
るが、これらのものは一長一短あって、満足するものは
得られていないのが実情である。即ち、有孔管によるも
のは透水性に限界があり、不織布を管状としたもの、不
織布層にスパイラルコイルを配したもの、あるいは、撚
りをかけた繊維体を並列集合体に編んだもの等は一定期
間の使用によって目詰りが生じたり、使用中の圧力によ
って押し潰されることによって機能を低下し喪失するに
至るものである。These drain materials are required to have strength and rigidity in order to be driven into the soil or laid and used, and needless to say have good water collecting property and water permeability. The thing is that there are merits and demerits, and there is no satisfying thing. That is, a perforated tube has a limit of water permeability, and a non-woven fabric made into a tubular form, a non-woven fabric layer provided with a spiral coil, or a twisted fibrous body woven into a parallel aggregate It causes clogging due to use for a certain period of time or is crushed by the pressure during use, resulting in deterioration and loss of function.
本発明はこのような従来のドレーン材の欠点を除き、集
水性と透水性が大きく、しかも長期間の使用によっても
目詰り等が生ずることのないドレーン材を提供すること
にある。The present invention eliminates such drawbacks of conventional drain materials, and provides a drain material that has a large water collecting property and water permeability and does not cause clogging or the like even after long-term use.
このような目的を達成するために本発明は、単糸織度が
０．１ｄ〜１０ｄの疎水性繊維をほぼ一方向に引揃えて
なるトウの如き繊維収束体（以下単に引揃え繊維収束体
という）を、経糸と緯糸とのいずれか一方か、或は経糸
と緯糸との両方に有する織物からなるものとし、また、
引揃え繊維収束体を、経糸と緯糸とのいずれか一方か、
或は経糸と緯糸との両方に有する織物に不織繊維構造物
を積層し、これらを一体としたものである。In order to achieve such an object, the present invention provides a fiber bundle such as a tow obtained by aligning hydrophobic fibers having a single yarn weave of 0.1d to 10d in almost one direction (hereinafter, simply referred to as an aligned fiber bundle). ) Is a woven fabric having one of warp and weft, or both warp and weft, and
Align the aligned fiber bundle to either warp or weft,
Alternatively, a non-woven fiber structure is laminated on a fabric having both warp and weft, and these are integrated.
本発明に用いられる繊維は、ポリエステル繊維、ポリア
ミド繊維、ポリビニールアルコール繊維、ポリ塩化ビニ
ル繊維、ポリオレフィン系繊維、アクリル系繊維等の如
き剛性繊維であり、これらの繊維の単繊維デニールとし
ては０．１ｄ〜１０ｄ程度の範囲内である。またこれら
の繊維にあっては、単一の繊維でもよく、コアースキン
型やサイドバイサイド型のような複合繊維であってもよ
く、その断面形状も任意であり、さらにこれらには捲縮
が施されていても捲縮が施されていなくてもよい。The fiber used in the present invention is a rigid fiber such as a polyester fiber, a polyamide fiber, a polyvinyl alcohol fiber, a polyvinyl chloride fiber, a polyolefin fiber, an acrylic fiber, etc., and a single fiber denier of these fibers is 0. It is within the range of about 1d to 10d. Further, these fibers may be a single fiber or may be a composite fiber such as a core-skin type or a side-by-side type, and their cross-sectional shape is arbitrary, and they are crimped. Alternatively, it may not be crimped.
本発明に用いられる引揃え繊維収束体は上記したような
繊維からなっているが、それは通常トウ（Ｔｏｗ）と称
される形態のものが用いられる。The aligned fiber bundle used in the present invention is composed of the fibers as described above, but it is usually in the form called Tow.
またこの引揃え繊維収束体の断面形状は円形、楕円形、
短形等任意であり、その太さも任意であり、特に太さは
繊維の種類、工法、規模等によって異なるが通常は１ｍ
ｍ〜５ｍｍ程度が好ましく用いられる。The cross-sectional shape of this aligned fiber bundle is circular, elliptical,
The shape is arbitrary, such as a short shape, and its thickness is also arbitrary.
About m to 5 mm is preferably used.
本発明に用いられる引揃え繊維収束体は後に述べるよう
に、織物の経糸と緯糸の両方またはいずれか一方として
用いられるため、その取扱いに便なように、繊維束の周
囲に、繊維が捲回していてもよい。As will be described later, the aligned fiber bundle used in the present invention is used as a warp and / or a weft of a woven fabric, so that the fiber is wound around the fiber bundle so that it is easy to handle. May be.
本発明における第１の発明は織物の形態をなし、第２の
発明は、この織物と不織繊維構造物とが積層一体化され
たものであるが、これらにおいて引揃え繊維収束体は、
織物を構成する経糸の全部として用いられることもあ
り、１部の経糸として用いられることもある。同様に織
物を構成する緯糸の全部として用いられることも、また
１部の緯糸として用いられることもある。The first invention of the present invention is in the form of a woven fabric, and the second invention is one in which the woven fabric and the non-woven fiber structure are laminated and integrated.
It may be used as the whole warp constituting the woven fabric or may be used as a part of the warp. Similarly, it may be used as all of the wefts constituting the fabric, or may be used as a part of the wefts.
従って織物の経糸と緯糸の全部に用いられる場合、経糸
の全部にのみ用いられる場合、緯糸の全部にのみ用いら
れる場合、１部の経糸として用いられる場合、１部の緯
糸として用いられる場合、およびこれらを組合わせて用
いられる場合とがあるが、どのように用いられた場合で
も、ドレーン材が用いられた時地中の水が集水され、こ
れを透水する方向に、引揃え繊維収束体が配されるよう
にドレーン材が敷設されることが好ましい。Therefore, when it is used for all of the warp and weft of the woven fabric, when it is used for all of the warp, only for all of the weft, when used as one part of warp, when used as one part of weft, and There is a case where they are used in combination, but no matter how they are used, when the drain material is used, the water in the ground is collected, and the aligned fiber converging body is gathered in the direction of water permeation. It is preferable that the drain material is laid so that
引揃え繊維収束体が経糸や緯糸の１部として用いられた
場合における他の経糸や緯糸となる繊維の種類、織度は
任意であるが、特にその織度にあっては引揃え繊維収束
体よりも細いものである方が、経済的であり、また取扱
いも容易であることなどから好ましい。When the aligned fiber converging body is used as a part of the warp or weft, the type and weaving degree of the other warp or weft fibers are arbitrary. The thinner one is preferable because it is economical and easy to handle.
また織物の組織や密度（目付）等は任意であるが、織成
の容易さや経済性等を考慮するならば、その組織は平織
によるものが好ましく、その密度も寒冷しやの如く、粗
目の織物であってその経糸中の適宜間隔毎に前記引揃え
繊維収束体が経糸として配されたものが好ましい。Further, the structure and density (weight per unit area) of the woven fabric are arbitrary, but in consideration of easiness of weaving and economical efficiency, the structure is preferably a plain weave, and the density thereof is rough, such as in cold weather. It is preferable to use a woven fabric in which the aligned fiber bundles are arranged as warps at appropriate intervals in the warp.
本発明に用いられる不織繊維構造物は例えば不織布、ウ
エブ、フエルト等の如き繊維集合体であって、これを構
成する繊維の種類としては、例えばポリエステル繊維、
ポリアミド繊維、アクリル系繊維、ポリオレフィン繊
維、ポリビニールアルコール繊維、ポリ塩化ビニル繊維
等の如き合成繊維の一種またはこれらを混合した繊維や
半合成繊維、再生繊維素繊維および天然繊維等であり、
これらの繊維の織度は１ｄ〜２０００ｄ程度の範囲内が
好ましいが、これに限定されるものではない。また不織
繊維構造物は、長繊維または短繊維のいずれから構成さ
れていてもよく、それはまた、捲縮されていても、捲縮
されていなくてもよい。The non-woven fiber structure used in the present invention is, for example, a fiber aggregate such as a non-woven fabric, a web, a felt, and the like.
One kind of synthetic fiber such as polyamide fiber, acrylic fiber, polyolefin fiber, polyvinyl alcohol fiber, polyvinyl chloride fiber, etc., or a mixed fiber or semi-synthetic fiber, recycled fibrous fiber, natural fiber, etc.,
The weaving degree of these fibers is preferably in the range of about 1 d to 2000 d, but is not limited thereto. The non-woven fibrous structure may also be composed of either long fibers or short fibers, which may or may not be crimped.
不織繊維構造物が上記した織物に積層されるには、織物
の片面または両面のいずれに積層されてもよく、これら
両者を一体とするには例えば縫着、接着、ニードルパン
チ等があげられるが、これに限定されることなく、他の
如何なる手段であってもよい。In order to laminate the non-woven fiber structure to the above-mentioned woven fabric, it may be laminated on either one side or both sides of the woven fabric, and for integrating these both, for example, sewing, adhesion, needle punching, etc. may be mentioned. However, the present invention is not limited to this, and any other means may be used.
本発明に用いられる引揃え繊維収束体は、従来提案され
ている有孔管、管状とした不織布、空隙率の大きい繊維
集合体、不織布層に配されたスパイラルコイル等とは全
く異なっている。即ち、これらのものは透水に有効な空
隙を有していなければならないものであって、形成され
た空隙を利用して水が導かれ排出されるが、いずれも土
の中に埋設されるものであるから土の圧力により押し潰
され、或は土砂によって空隙が埋って透水機能を失うに
至るものである。The aligned fiber bundle used in the present invention is completely different from conventionally proposed perforated pipes, tubular nonwoven fabrics, fiber aggregates having a high porosity, spiral coils arranged in a nonwoven fabric layer, and the like. That is, these must have voids that are effective for water permeation, and water is guided and discharged using the voids that are formed, but all of them are buried in soil. Therefore, it will be crushed by the pressure of the soil, or the void will be filled with earth and sand, and the water permeability will be lost.
本発明における引揃え繊維収束体は管、スパイラルコイ
ル、空隙率の大きい繊維集合体等のように、構成された
空隙を透水のための空隙として利用するものではなく、
単糸織度が０．１ｄ〜１０ｄである疎水性繊維が一方向
に引揃えられた繊維の収束体が有する極めて大きな毛管
機能を利用したもので、この毛管機能は、例えば土の圧
力によって繊維収束体が押し潰されることによってもそ
の毛管機能は阻害されることなく、それとは反対に、外
力によって繊維束に圧力が加わり、繊維束の密度が大き
くなればなる程、毛管機能は良好となり水の動きが大き
くなる特徴を有しているから、本発明になるドレーン材
は従来のもののように使用時間の経過と共に、形成され
た空隙が土の圧力によって押し潰されて透水機能を低下
し遂にはその機能を失うに至ったり、土砂によって空隙
が埋って、透水機能を低下し遂には失うというような虞
れは全くなく、むしろ土の圧力によって集束体が押し潰
されることによって集束体の密度が大になればなる程、
集束体の毛管機能は良くなり水の動きが大きくなるもの
であり、このような引揃え繊維集束体以外の織物を構成
する経糸や緯糸は、敷設された範囲の土中からの集水用
としての機能を果たすものであり、更に、不織繊維構造
物が積層一体化されたものにあっては、不織繊維構造物
は、敷設された土中周辺を含めこの集水効果が大きく、
これと共に濾過機能を果たすと共に、ドレーン材全体と
しての補強に著しく貢献し、その強度を著しく向上する
ものである。The aligned fiber converging body in the present invention does not utilize the configured void as a void for water permeation like a tube, a spiral coil, a fiber aggregate having a large porosity, and the like.
Utilizing an extremely large capillary function of a converging body of fibers in which hydrophobic fibers having a single yarn weaving degree of 0.1d to 10d are aligned in one direction. Even if the body is crushed, its capillary function is not impaired, and conversely, as the external force exerts pressure on the fiber bundle and the density of the fiber bundle increases, the capillary function becomes better and Since the drain material according to the present invention has a characteristic of large movement, the formed voids are crushed by the pressure of the soil with the passage of use time like the conventional one, and finally the water permeability function is lowered. There is no risk that the function will be lost or that the void will be filled with earth and sand, and the water permeability function will be reduced and eventually lost, but rather the pressure of the earth will crush the focusing body. Higher the density of the focusing body is if a large,
The capillary function of the bundle is improved and the movement of water is increased.The warps and wefts constituting the woven fabric other than the aligned fiber bundle are used for collecting water from the soil in the laid area. In addition, the non-woven fiber structure has a large effect of collecting water including the surrounding area in the soil when the non-woven fiber structure is laminated and integrated.
At the same time, it fulfills a filtering function, and contributes significantly to the reinforcement of the drain material as a whole, thereby significantly improving its strength.
実施例１ 経糸、緯糸が共にポリエステル繊維２０番手の糸を用い
て経、緯共に１６本／吋で平織とする時、糸の長さ方向
に引揃えられた直径２ｍｍの繊維集束体（単糸織度が１
デニールであるポリプロピレン繊維フィラメント）を５
ｃｍ間隔で前記の経糸に代えて構成して織布を得た。こ
の織布をドレーン材として多湿地盤中に排水方向が繊維
集束体の長さ方向であるように敷設した処、高能率の集
排水効果を長期間維持することができた。Example 1 When a warp yarn and a weft yarn are both made of a polyester fiber of 20 count and a plain weave with 16 wefts / inch is used, a fiber bundle having a diameter of 2 mm aligned in the length direction of the yarn (single yarn weave) Degree 1
Denier polypropylene fiber filament) 5
A woven fabric was obtained at intervals of cm instead of the warp described above. By laying this woven fabric as a drain material in a humid soil so that the drainage direction is the length direction of the fiber bundle, a highly efficient drainage effect could be maintained for a long time.
実施例２ 実施例１で得られた織布の両面に、単糸織度７デニール
繊維長７６ｍｍのポリプロピレン繊維からなるウエブ
（１００ｇ／ｍ２）を厚さ２０ｍｍ重ね、これらをパン
チ密度１４０パンチ／ｃｍ２でニードルパンチして一体
としたものをドレーン材として多湿地盤中に排水方向が
繊維集束体の長さ方向であるようにして敷設した処、高
能率の集排水効果を長期間維持することができた。Example 2 A web (100 g / m 2 ) made of polypropylene fiber having a single yarn weaving degree of 7 denier fiber length of 76 mm and having a thickness of 20 mm was superposed on both sides of the woven fabric obtained in Example 1, and these were punched at a density of 140 punches / cm. When the needle punched in 2 is used as a drain material and is laid in the humid soil so that the drainage direction is the longitudinal direction of the fiber bundle, it is possible to maintain a highly efficient drainage effect for a long time. did it.
本発明によるドレーン材は単糸織度が０．１ｄ〜１０ｄ
の疎水性繊維をほぼ一方向に引揃えてなるトウの如き繊
維集束体を経糸と緯糸とのいずれか一方か、或は経糸と
緯糸との両方に有する織物からなり、また、この繊維に
不織繊維構造物を積層し、これらを一体としたものであ
って、これは単糸織度が０．１ｄないし１０ｄである疎
水性繊維のトウは密度が大にして、これによる時は従来
に見られない大きな毛管機能を呈することができ、しか
も使用中土の圧力によってトウである繊維集束体が押し
潰されれば潰されるほど、集束体の密度が大きくなり毛
管機能は良好となり水の動きが大きくなるものであっ
て、この点、撚りをかけた繊維体を並列集合体に編んだ
ものにあっては繊維の集合体が有する空隙によって脱水
を計るもので、土の圧力によって押し潰されることによ
って空隙が減少し脱水が不良となってゆくものとは比較
にならないほどの集水脱水効果を奏し、特に不織繊維構
造物とからなるものは集水効果が格別に大きいものであ
る。The drain material according to the present invention has a single yarn weave of 0.1d to 10d.
Of a fabric having a fiber bundle such as a tow obtained by aligning the hydrophobic fibers of the above in almost one direction in either one of the warp and the weft, or in both the warp and the weft. The woven fiber structure is laminated, and these are integrated. This is because the tow of the hydrophobic fiber having the single yarn weaving degree of 0.1d to 10d has a high density, and when this is the case, It can exhibit a large capillarity that cannot be achieved, and the more the tow fiber bundle is crushed by the pressure of the soil in use, the more the crushed fiber bundle becomes denser, the better the capillary function becomes, and the movement of water moves. In this respect, in the case of twisted fiber bodies knitted in parallel aggregates, dehydration is measured by the voids of the fiber aggregates, and it is crushed by the soil pressure. Voids decrease and Exhibit the catchment dewatering effect of beyond comparison with that day become as bad, especially those composed of a non-woven fiber structure is one catchment effect exceptionally large.
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭51−72120（ＪＰ，Ａ) 特開 昭49−126112（ＪＰ，Ａ) 特開 昭49−12608（ＪＰ，Ａ) ─────────────────────────────────────────────────── ─── Continuation of the front page (56) Reference JP-A-51-72120 (JP, A) JP-A-49-126112 (JP, A) JP-A-49-12608 (JP, A)
Claims (2)
をほぼ一方向に引揃えてなるトウの如き繊維収束体を、
経糸と緯糸とのいずれか一方か、或は経糸と緯糸との両
方に有する織物からなることを特徴とする排水工法用ド
レーン材。1. A fiber bundle such as a tow obtained by aligning hydrophobic fibers having a single yarn weave of 0.1d to 10d in substantially one direction,
A drain material for a drainage method, comprising a fabric having either one of warp and weft, or both warp and weft.
をほぼ一方向に引揃えてなるトウの如き繊維収束体を、
経糸と緯糸とのいずれか一方か、或は経糸と緯糸との両
方に有する織物に、不織繊維構造物を積層し、これら
を、一体としたことを特徴とする排水工法用ドレーン
材。2. A fiber bundle such as a tow obtained by aligning hydrophobic fibers having a single yarn weave of 0.1d to 10d in substantially one direction,
A drain material for a drainage method, characterized by laminating a non-woven fiber structure on a woven fabric having either one of warp and weft, or both warp and weft, and integrating these.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57227035A JPH0637765B2 (en) | 1982-12-27 | 1982-12-27 | Drain material for drainage method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57227035A JPH0637765B2 (en) | 1982-12-27 | 1982-12-27 | Drain material for drainage method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59141621A JPS59141621A (en) | 1984-08-14 |
| JPH0637765B2 true JPH0637765B2 (en) | 1994-05-18 |
Family
ID=16854501
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57227035A Expired - Lifetime JPH0637765B2 (en) | 1982-12-27 | 1982-12-27 | Drain material for drainage method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0637765B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0696862B2 (en) * | 1986-06-06 | 1994-11-30 | 東急建設株式会社 | Water-stopping material and water-stopping method using the same |
| JPH0637773B2 (en) * | 1986-06-06 | 1994-05-18 | 東急建設株式会社 | Waterproofing method from water absorbent material and surrounding ground to root excavation |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS525764B2 (en) * | 1973-04-04 | 1977-02-16 | ||
| JPS5172120A (en) * | 1974-12-20 | 1976-06-22 | Asahi Giken Kk | Nenseidojibanno kairyo |
-
1982
- 1982-12-27 JP JP57227035A patent/JPH0637765B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59141621A (en) | 1984-08-14 |
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