JP2003190904A - Water stop member and water stop structure of water shielding sheet fixation part - Google Patents
Water stop member and water stop structure of water shielding sheet fixation partInfo
- Publication number
- JP2003190904A JP2003190904A JP2001396855A JP2001396855A JP2003190904A JP 2003190904 A JP2003190904 A JP 2003190904A JP 2001396855 A JP2001396855 A JP 2001396855A JP 2001396855 A JP2001396855 A JP 2001396855A JP 2003190904 A JP2003190904 A JP 2003190904A
- Authority
- JP
- Japan
- Prior art keywords
- water
- water blocking
- sheet
- blocking member
- concrete
- 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
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/30—Landfill technologies aiming to mitigate methane emissions
Landscapes
- Building Environments (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は止水部材及び遮水シ
ート定着部止水構造に係り、廃棄物最終処分場等に敷設
された遮水シートと処分場内に構築された構造物との取
り合い部での遮水シート定着部に用いられる止水部材
と、この止水部材により高い水密性を得るようにした遮
水シート定着部止水構造に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water blocking member and a water blocking structure for a fixing portion of a water blocking sheet, and relates to a water blocking sheet laid at a final landfill site for waste and a structure constructed in the landfill site. The present invention relates to a water blocking member used for a water blocking sheet fixing section in a water blocking section, and a water blocking sheet fixing section water blocking structure for obtaining high water tightness by the water blocking member.
【０００２】[0002]
【従来の技術および発明が解決しようとする課題】一般
廃棄物の最終処分場では、遮水工として敷設された遮水
シート上に溜まる浸出水を集水して場内に設けられた浸
出水調整施設に導水する浸出水制御が一般に行われてい
る。たとえば浸出水制御のために、処分場内には取水ピ
ット等の構造物が構築される。この取水ピット等の構造
物との取り合い部では遮水シートが途切れるため、遮水
シートの端部が構造物のコンクリートの一部に定着され
る。したがって、このシート定着部から浸出水が漏水し
ないように、十分な水密性が確実に保持されることが必
要である。2. Description of the Related Art At the final disposal site for general waste, leachate collected on the water-blocking sheet laid as a water-blocking work is collected to adjust the leachate provided in the site. Leachate control to guide water to the facility is generally performed. For example, structures such as water intake pits will be constructed in the disposal site to control leachate. Since the water blocking sheet is cut off at the portion where the water blocking pit or the like is connected to the structure, the edge of the water blocking sheet is fixed to a part of the concrete of the structure. Therefore, it is necessary to surely maintain sufficient water tightness so that leachate does not leak from the sheet fixing section.
【０００３】図６は、構造物と遮水シートとの取り合い
部における遮水シート定着部止水構造の一例を示した部
分断面図である。同図に示したように、この遮水シート
定着部５０では、ゴム系パッキン５１を介在させたステ
ンレス鋼製フラットバー５２（平鋼）で遮水シート５３
の端部を押さえ、あらかじめコンクリートＣ面に列設さ
れているホールインアンカー５４にフラットバー５２を
固定保持して止水構造としている。このときフラットバ
ー５２とシート５３との間に非加硫ブチルゴム製のテー
プ５５を介在させてゴム系パッキンとシートとの間の接
着性を高め、止水性（水密性）が高められている。FIG. 6 is a partial cross-sectional view showing an example of a water blocking structure for a water impermeable sheet fixing section at an interface between a structure and a water impermeable sheet. As shown in the figure, in the water impermeable sheet fixing section 50, a water impermeable sheet 53 is formed by a stainless steel flat bar 52 (flat steel) with a rubber packing 51 interposed.
The flat bar 52 is fixedly held by the hole-in anchor 54 that is lined up in advance on the concrete C surface to form a water-stop structure. At this time, a tape 55 made of non-vulcanized butyl rubber is interposed between the flat bar 52 and the sheet 53 to enhance the adhesiveness between the rubber-based packing and the sheet, thereby enhancing the waterproofness (watertightness).
【０００４】この種のアンカーボルトを用いた遮水シー
ト定着部止水構造は、今までに多くの実績を持つが、コ
ンクリート表面にあと施工のアンカーボルトを施工する
ため、コンクリート面の仕上げ精度やアンカーボルトの
施工精度にバラツキがでやすい。このため、水深１０m
以上の大きな水圧がかかるような位置の遮水シート定着
部では、その水密性が十分確保できないおそれがある。
また、ボルトやフラットバー等の金属部品が露出した構
造となっているため、常時水没する箇所においては長期
間の使用において電蝕による部材劣化のおそれがある。A water blocking sheet fixing part water stop structure using this type of anchor bolt has a large number of achievements so far, but since an anchor bolt to be constructed later is constructed on the concrete surface, the finishing precision of the concrete surface and The accuracy of the anchor bolt construction tends to vary. Therefore, the water depth is 10m
In the impermeable sheet fixing section at the position where a large amount of water pressure is applied, the watertightness may not be sufficiently secured.
Further, since the metal parts such as the bolts and the flat bar are exposed, there is a possibility that the parts may be deteriorated due to electrolytic corrosion in a place that is always submerged in water in a long-term use.
【０００５】これらの問題を考慮して構造物のコンクリ
ート内に埋設して使用する樹脂製の止水部材も開発され
ている。図７はこの種の埋設タイプの止水部材６０の形
状を示した斜視図、図８はこの止水部材６０を用いた遮
水シート定着部の構造例を示した断面図である。この止
水部材６０は、図７に示したように、略コ字形の溝形
（チャンネル）形状断面をなした、高密度ポリエチレン
樹脂の長尺成形部品である。止水構造の用途により、種
々の断面寸法での成形が可能であるが、たとえば一般用
途の止水部材としては、溝深さに相当するフランジ６１
高さが４０mm、ベース６２幅が８０mm程度のものが用い
られている。基本形状は溝形であるが、図示したよう
に、埋設時の引き抜き抵抗を高めるためにフランジ先端
６３が爪状に折り曲げ加工されている。In consideration of these problems, a resin waterproof member which is used by being embedded in concrete of a structure has been developed. FIG. 7 is a perspective view showing the shape of this type of buried type water blocking member 60, and FIG. 8 is a sectional view showing a structural example of a water blocking sheet fixing section using this water blocking member 60. As shown in FIG. 7, the water blocking member 60 is a long molded component of high density polyethylene resin having a substantially U-shaped groove (channel) shaped cross section. Depending on the use of the water blocking structure, molding with various cross-sectional dimensions is possible. For example, as a water blocking member for general use, a flange 61 corresponding to the groove depth
A height of 40 mm and a width of the base 62 of about 80 mm are used. Although the basic shape is a groove shape, as shown in the drawing, the flange tip 63 is bent into a claw shape in order to increase the pullout resistance at the time of embedding.
【０００６】この止水部材６０を遮水シート定着部に用
いるには、図８に示したように、まず溝開口が下側を向
き、ベース６２が打設されるコンクリートＣ面と面一を
なし、シート６４の端部６４ａに沿って延在するように
コンクリートＣ内に埋設する。そしてこのベース６２の
中央位置に沿って遮水シート端部６４ａを重ねるように
配置し、遮水シート端部６４ａと止水部材６０のベース
６２との重なり部分を、高密度ポリエチレン樹脂による
押出接合によって肉盛樹脂６５を形成して固定し、シー
ト端部６４ａと止水部材６０とを一体化させる。In order to use the water blocking member 60 in the water impermeable sheet fixing portion, as shown in FIG. 8, first, the groove opening faces downward and is flush with the concrete C surface on which the base 62 is placed. None, embedded in concrete C so as to extend along the end 64a of the sheet 64. Then, the water shielding sheet end portion 64a is arranged along the central position of the base 62 so as to overlap with each other, and the overlapping portion of the water shielding sheet end portion 64a and the base 62 of the water blocking member 60 is extrusion-bonded with a high density polyethylene resin. The build-up resin 65 is formed and fixed by the above, and the sheet end portion 64a and the water blocking member 60 are integrated.
【０００７】ところで、近年、従来の高密度ポリエチレ
ン樹脂に代わって、新しいタイプの遮水シートとしてオ
レフィン系熱可塑性樹脂エラストマーゴムベースのフレ
キシブルポリマーアロイ遮水シート（以下、ＦＰＡ遮水
シートと記す。）が使用されるようになってきた。この
ため、ＦＰＡ遮水シートを、異種樹脂の高密度ポリエチ
レン樹脂の止水部材に定着させる必要も生じてきた。こ
の場合も止水部材にシート端部を接合するのに押出接合
が用いられるが、この場合には図８に示したように、ま
ず高密度ポリエチレン樹脂の肉盛樹脂６５でＦＰＡ遮水
シートの端部６４ａを押さえ、さらにＦＰＡによる押出
接合を行い、ＦＰＡの肉盛樹脂６６で高密度ポリエチレ
ン樹脂の肉盛樹脂６５を覆うようにしてシートを接合し
なければならず、シート接合作業の手間が倍増する。ま
た、遮水シートを２重シート構造とする場合、肉盛樹脂
の幅が大きくなるため、コンクリート内に図７に示した
形状の止水部材を複数列平行に埋設しなければならない
こともある。By the way, in recent years, in place of the conventional high-density polyethylene resin, as a new type of water shield sheet, a flexible polymer alloy water shield sheet based on an olefinic thermoplastic resin elastomer rubber (hereinafter referred to as FPA water shield sheet). Has come to be used. For this reason, it has become necessary to fix the FPA waterproof sheet to a water blocking member made of a high-density polyethylene resin of a different resin. In this case as well, extrusion joining is used to join the sheet ends to the water blocking member, but in this case, as shown in FIG. 8, first, as shown in FIG. It is necessary to press the end portion 64a, perform extrusion joining by FPA, and join the sheets by covering the overlay resin 65 of the high-density polyethylene resin with the overlay resin 66 of FPA. Double. Further, when the waterproof sheet has a double sheet structure, the width of the overlay resin becomes large, and thus it may be necessary to embed a water blocking member having a shape shown in FIG. .
【０００８】また、図８のようにコンクリートに埋設し
て使用する止水部材ではコンクリートの乾燥収縮等によ
り止水部材との隙間が生じ、この隙間に沿って浸出水が
止水部材裏面まで浸透してしまうおそれもある。このよ
うに、埋設された止水部材とコンクリートとの間に隙間
が生じた場合でも、浸出水の浸透を確実に遮断できるこ
とが求められている。Further, as shown in FIG. 8, in the water blocking member used by being embedded in concrete, a gap between the water blocking member and the water blocking member is created due to drying shrinkage of the concrete, etc., and the leachate permeates to the back surface of the water blocking member along this gap. There is also a risk of doing it. As described above, it is required that the permeation of the leachate can be surely blocked even when a gap is formed between the buried water blocking member and the concrete.
【０００９】そこで、本発明の目的は上述した従来の技
術が有する問題点を解消し、遮水シートの定着部と構造
物との取り合い部において浸出水を確実に止水するため
の耐久性に富む止水部材及び遮水シート定着部止水構造
を提供することにある。Therefore, an object of the present invention is to solve the above-mentioned problems of the conventional technique and to improve durability for surely stopping leachate at the joint between the fixing portion of the water-blocking sheet and the structure. An object of the present invention is to provide an abundant water blocking member and a water blocking structure for a water blocking sheet fixing section.
【００１０】[0010]
【課題を解決するための手段】上記目的を達成するため
に、本発明は溝形断面部と、該溝形断面部のベースの幅
方向中央位置に一体成形され、その表面に部材長手方向
に沿って延在する複数本の突起を有する止水フランジと
からなることを特徴とする。In order to achieve the above-mentioned object, the present invention is formed integrally with a groove-shaped cross-section and a central position in the width direction of a base of the groove-shaped cross-section, and its surface is formed in the member longitudinal direction. It is characterized by comprising a water stop flange having a plurality of protrusions extending along the water stop flange.
【００１１】オレフィン系熱可塑性樹脂エラストマーゴ
ム成形品で前記止水部材を構成することが耐久性等の面
から好ましい。From the standpoint of durability, it is preferable that the water blocking member is made of an olefinic thermoplastic resin elastomer rubber molded product.
【００１２】また、前記止水フランジの一部に、部材長
手方向に沿って水膨潤性止水棒材を設けることが止水性
の向上の点から好ましい。Further, it is preferable to provide a water-swellable water blocking rod along a longitudinal direction of the member at a part of the water blocking flange in order to improve water blocking.
【００１３】この止水部材を用いた遮水シート定着部の
構成として、本発明は遮水シート端部が、定着位置のコ
ンクリート面のアンカーボルト列にフラットバーを介し
て固定され、該アンカーボルト列が、アンカーボルト列
に平行して前記コンクリート内に埋設された前記止水部
材に一端が固着され、他端が前記遮水シート面に固着さ
れたカバーシートで被覆されたことを特徴とする。According to the present invention, the end of the water-blocking sheet is fixed to a row of anchor bolts on the concrete surface at the fixing position via a flat bar as a structure of the water-blocking sheet fixing section using this water blocking member. The row is parallel to the row of anchor bolts, one end of which is fixed to the water blocking member embedded in the concrete, and the other end of which is covered with a cover sheet fixed to the surface of the water blocking sheet. .
【００１４】このとき前記遮水シートと止水部材とカバ
ーシートとは、オレフィン系熱可塑性樹脂エラストマー
ゴム成形品とすることが好ましい。At this time, it is preferable that the water-blocking sheet, the water blocking member and the cover sheet are olefinic thermoplastic resin elastomer rubber molded articles.
【００１５】[0015]
【発明の実施の形態】以下、本発明の止水部材及び遮水
シート定着部止水構造の一実施の形態について、添付図
面を参照して説明する。図１は、本発明の止水部材１０
の端面形状を示した斜視図である。また同図には、水膨
潤性止水棒材２０が止水部材１０と併せて示してある。
本実施の形態では、この水膨潤性止水棒材２０は止水部
材１０の止水フランジ１５の一部に接着され、止水部材
１０の止水性を高めるために併用されている。BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of a water blocking member and a water blocking sheet fixing portion water blocking structure of the present invention will be described below with reference to the accompanying drawings. FIG. 1 shows a water blocking member 10 of the present invention.
FIG. 3 is a perspective view showing the end face shape of FIG. Further, in the figure, a water-swellable water blocking rod 20 is shown together with the water blocking member 10.
In the present embodiment, this water-swellable water blocking rod 20 is bonded to a part of the water blocking flange 15 of the water blocking member 10 and is also used to enhance the water blocking capability of the water blocking member 10.
【００１６】［止水部材の構成］本発明の止水部材１０
の構成について説明する。止水部材１０は、図に示した
ように、ベース１１と、ベース１１の両側のフランジ１
２とが一体となった従来と同形の溝形断面部に加え、止
水フランジ１５がベース１１の下面中央位置に一体的に
形成された形状からなる。止水フランジ１５は止水部材
１０の表面を伝わるおそれのある浸出水の経路を延長す
る役目を果たしている。またフランジ表面には、複数本
の三角形状断面の突起１３が部材の長手方向に平行して
延在するように形成されている。これら複数本の突起１
３は打設されたコンクリートＣ（図２）の収縮によって
生じるおそれのある隙間（図示せず）に対してパッキン
作用を果たしている。さらに止水フランジ１５の底部に
は止水棒材２０を取り付け可能なスペース１４が設けら
れている。このスペース１４表面位置に止水棒材２０を
接着して止水部材１０と一体化させ、コンクリート打設
が行われる。[Structure of Water Stopping Member] Water stopping member 10 of the present invention
The configuration of will be described. As shown in the figure, the water blocking member 10 includes a base 11 and flanges 1 on both sides of the base 11.
In addition to the conventional groove-shaped cross-section part in which 2 and 1 are integrated, a water stop flange 15 is integrally formed at the center position of the lower surface of the base 11. The water stop flange 15 serves to extend the path of the leachate that may travel along the surface of the water stop member 10. Further, a plurality of protrusions 13 having a triangular cross section are formed on the surface of the flange so as to extend in parallel to the longitudinal direction of the member. These multiple protrusions 1
3 plays a packing function with respect to a gap (not shown) which may be caused by the shrinkage of the cast concrete C (FIG. 2). Further, the bottom of the water stop flange 15 is provided with a space 14 in which the water stop bar 20 can be attached. A water blocking rod 20 is adhered to the surface position of the space 14 to be integrated with the water blocking member 10, and concrete pouring is performed.
【００１７】本実施の形態では止水部材１０の断面の寸
法形状としてベース１１の幅と止水フランジ１５高さと
の比（縦横比）を等しくし、ともに寸法１００mmとした
が、ベース１１に溶着される押出接合の肉盛樹脂幅を大
きくする必要がある場合にはベース幅を大きくすること
が好ましい。その際、ベース幅のみを大きくしても、縦
横比を一定にして止水部材１０全体を大きくても良い。
本実施の形態では止水部材１０の基本厚さを５mmとした
が、全体寸法を大きくした場合には剛性を確保するため
にその厚さを増すことも好ましい。In the present embodiment, the ratio of the width of the base 11 and the height of the water stop flange 15 (aspect ratio) is made equal as the dimension and shape of the cross section of the water stop member 10 and both dimensions are 100 mm. When it is necessary to increase the width of the build-up resin for extrusion bonding, it is preferable to increase the base width. At that time, only the base width may be increased, or the entire water blocking member 10 may be increased with the aspect ratio kept constant.
Although the basic thickness of the water blocking member 10 is set to 5 mm in the present embodiment, it is also preferable to increase the thickness in order to secure rigidity when the overall size is increased.
【００１８】本実施の形態では止水部材１０としてＦＰ
Ａ樹脂成形品が用いられている。止水部材１０と遮水シ
ート１とを同材質とすることにより、１回のＦＰＡ樹脂
による押出接合でＦＰＡ肉盛樹脂を形成し、遮水シート
端部１ａと止水部材１０のベース１１との一体化を図る
ことができる（図２参照）。In this embodiment, FP is used as the water blocking member 10.
A resin molded product is used. By using the same material for the water blocking member 10 and the water blocking sheet 1, the FPA build-up resin is formed by a single extrusion joining with the FPA resin, and the water blocking sheet end portion 1a and the base 11 of the water blocking member 10 are formed. Can be integrated (see FIG. 2).
【００１９】止水部材１０に取り付けられる止水棒材２
０は、非膨潤性の芯材ゴム２１が配置された公知の複合
膨潤材である。内部に配置された芯材ゴム２１により、
止水棒材２０に偏膨潤が生じても棒材の曲がり等が最小
限に押さえられる。さらに芯材ゴム２１の周囲には水膨
潤スポンジ層２２が形成され、水膨潤スポンジ層２２を
覆うように膨潤遅延層２３が形成されている。このよう
に複数の膨潤性能の膨潤層２２，２３を有することで、
コンクリート硬化時における初期膨潤が押さえられ、躯
体への悪影響を小さくできる。そして硬化コンクリート
内に埋設された止水部材１０の表面を伝わって来た浸出
水を、安定した状態で遮断することができる。本実施の
形態では止水部材１０の大きさに合わせて高さ２０mm、
幅１０mmの断面寸法の止水棒材２０が用いられている。
本実施の形態では止水フランジ１５の左右表面に一対が
設けられているが、求められる水密性（止水性）の度合
いにより止水棒材２０を省略しても多段にして用いても
よい。A water blocking rod 2 attached to the water blocking member 10.
0 is a known composite swelling material in which a non-swelling core rubber 21 is arranged. With the rubber core 21 arranged inside,
Even if the water blocking rod 20 is unevenly swelled, the bending of the rod is suppressed to a minimum. Further, a water swelling sponge layer 22 is formed around the core material rubber 21, and a swelling delay layer 23 is formed so as to cover the water swelling sponge layer 22. By having a plurality of swelling layers 22 and 23 having swelling performance in this way,
Initial swelling when concrete is hardened is suppressed, and adverse effects on the skeleton can be reduced. Then, the leachate that has propagated on the surface of the water blocking member 10 embedded in the hardened concrete can be blocked in a stable state. In the present embodiment, the height is 20 mm according to the size of the water blocking member 10,
A water blocking rod 20 having a cross-sectional dimension of 10 mm is used.
In the present embodiment, a pair of water blocking flanges 15 are provided on the right and left surfaces, but the water blocking rods 20 may be omitted or used in multiple stages depending on the required degree of water tightness (water blocking).
【００２０】図２は、コンクリートＣ内に埋設された止
水部材１０のベース１１上面に、遮水シート端部１ａを
押出接合して肉盛樹脂１６で固定保持した状態を示した
断面図である。コンクリートを打設する際は止水部材１
０の止水フランジ１５の一部を図示しない鉄筋に固定す
るか、型枠せき板面に仮止めしておき、打設されたコン
クリートにより位置ずれしないようにすることが好まし
い。また、止水部材１０、止水棒材２０の周囲に十分コ
ンクリートが行き渡り、コンクリートとの密着が図れる
ようにコンクリート締め固めを行うことが好ましい。FIG. 2 is a cross-sectional view showing a state in which the waterproof sheet end portion 1a is extrusion-bonded to the upper surface of the base 11 of the water blocking member 10 embedded in the concrete C and is fixedly held by the overlay resin 16. is there. Water stop member 1 when pouring concrete
It is preferable that a part of the water stop flange 15 of No. 0 is fixed to a reinforcing bar (not shown) or is temporarily fixed to the surface of the form dam plate so as not to be displaced by the cast concrete. In addition, it is preferable to perform concrete compaction so that concrete is sufficiently spread around the water blocking member 10 and the water blocking rod 20 so that the water blocking member 20 and the water blocking rod 20 can be adhered to the concrete.
【００２１】［遮水シート定着部止水構造の構成］最終
処分場内に構築された取水ピットの取水孔と、その周囲
のコンクリートを覆うように敷設され、取水孔回りにシ
ート端部が定着された遮水シート定着部止水構造につい
て図３〜図５を参照して説明する。図３は、取水孔３
（一部）および取水孔３での遮水シート定着部止水構造
４０の構成を示した斜視図である。同図に示したよう
に、取水ピット２の鉛直壁の所定深さに設けられた角形
断面（例えば1000×1000mm）の取水孔にはその開口全体
を覆うようにステンレス製の有孔スクリーン４が固着さ
れている。そしてその取水孔３の開口縁３ａから所定の
離れを取った位置に有孔スクリーン４を囲むように四角
形をなして遮水シート定着部止水構造４０が設けられて
いる。さらに遮水シート定着部止水構造４０と開口縁３
ａとの間のコンクリート表面には防食工５が施されてい
る。さらに遮水シート定着部止水構造４０は、遮水シー
ト１をコンクリートＣに固定保持するアンカーボルト定
着部３０と、アンカーボルト定着部３０全体をカバーシ
ート４２で覆うカバー部４１とから構成されている。な
お、本実施の形態では材質がＦＰＡの遮水シート、カバ
ーシート及び止水部材が採用されている。この遮水シー
ト、カバーシートおよび止水部材の材質は、このＦＰＡ
に限らず、柔軟性、強度、耐久性、コスト等、使用上の
要求仕様に合致する材質であれば、合成樹脂シート、ゴ
ムエラストマー、ゴムシート、各種材料の積層シート等
を使用できることはいうまでもない。[Structure of water blocking structure for fixing impermeable sheet] The water intake pit constructed in the final disposal site is laid so as to cover the intake hole and the surrounding concrete, and the sheet end is fixed around the water intake hole. The water blocking sheet fixing unit water blocking structure will be described with reference to FIGS. 3 to 5. FIG. 3 shows the water intake hole 3.
FIG. 3 is a perspective view showing the structure of a water blocking sheet fixing unit water blocking structure 40 (partly) and at the water intake hole 3. As shown in the figure, the water intake hole with a rectangular cross section (for example, 1000 × 1000 mm) provided at a predetermined depth of the vertical wall of the water intake pit 2 is provided with a stainless perforated screen 4 so as to cover the entire opening. It is fixed. Further, a water blocking sheet fixing unit water blocking structure 40 is provided at a position separated from the opening edge 3a of the water intake hole 3 by a quadrangle so as to surround the perforated screen 4. Further, the water blocking sheet fixing unit water blocking structure 40 and the opening edge 3
An anticorrosion work 5 is applied to the concrete surface between a and a. Further, the water blocking sheet fixing section water blocking structure 40 includes an anchor bolt fixing section 30 for fixing and holding the water blocking sheet 1 to the concrete C, and a cover section 41 for covering the entire anchor bolt fixing section 30 with a cover sheet 42. There is. In this embodiment, a water impervious sheet made of FPA, a cover sheet, and a water blocking member are used. The material of the water-blocking sheet, the cover sheet and the water blocking member is
Not to mention, synthetic resin sheets, rubber elastomers, rubber sheets, laminated sheets of various materials, etc. can be used as long as they are materials that meet required specifications in use such as flexibility, strength, durability, cost, etc. Nor.
【００２２】（アンカーボルト定着部の構成）アンカー
ボルト定着部３０は、図４に示したように、構造物であ
る取水孔３との取り合い部近傍のコンクリート面に、そ
の位置が位置決めされ、遮水シート１はその位置に端部
が揃えられ固定保持される。このため、定着部位置には
固定部材としての複数本のアンカーボルトが列設された
アンカーボルト列３１（図４に一点鎖線で示している）
が設けられている。そしてこのアンカーボルト列３１の
長手方向に配置されたフラットバー３６で遮水シート端
部１ａが押さえられ、フラットバー３６をアンカーボル
ト列３１の各ボルト、ナットによって固定保持するよう
になっている。このアンカーボルト定着部３０は遮水シ
ート１と同材質のカバーシート４２で被覆され、遮水シ
ート定着部止水構造４０となる。(Structure of Anchor Bolt Fixing Section) As shown in FIG. 4, the anchor bolt fixing section 30 is positioned and shielded on the concrete surface in the vicinity of the mating portion with the water intake hole 3 which is a structure. The water sheet 1 has its ends aligned and fixedly held at that position. For this reason, an anchor bolt row 31 (indicated by a chain line in FIG. 4) in which a plurality of anchor bolts as a fixing member are arranged in a row at the fixing portion position.
Is provided. The water shield sheet end 1a is pressed by the flat bar 36 arranged in the longitudinal direction of the anchor bolt row 31, and the flat bar 36 is fixedly held by the bolts and nuts of the anchor bolt row 31. The anchor bolt fixing section 30 is covered with a cover sheet 42 made of the same material as the water blocking sheet 1 to form a water blocking sheet fixing section waterproof structure 40.
【００２３】アンカーボルト定着部３０の詳細構成につ
いて説明する。アンカーボルト列３１位置を一端として
所定幅（たとえば２００mm）の非加硫ブチルゴムテープ
３３がコンクリート表面に接着されている。この非加硫
ブチルゴムテープ３３によりコンクリート表面の不陸が
ある程度吸収されている。なお、本実施の形態ではアン
カーボルト定着部３０の幅Ｗは５０mmに設定されてお
り、この定着部の幅方向中心位置にあるアンカーボルト
列３１に位置合わせされて定着部幅Ｗと等幅に加工され
た各部材が積層されるようになっている。The detailed structure of the anchor bolt fixing portion 30 will be described. An unvulcanized butyl rubber tape 33 having a predetermined width (for example, 200 mm) is bonded to the concrete surface with the position of the anchor bolt row 31 as one end. The non-vulcanized butyl rubber tape 33 absorbs the unevenness of the concrete surface to some extent. In this embodiment, the width W of the anchor bolt fixing portion 30 is set to 50 mm, and the width W of the fixing portion is aligned with the anchor bolt row 31 at the center position in the width direction of the fixing portion so that the width W is equal to the fixing portion width W. The processed members are laminated.
【００２４】アンカーボルト定着部３０において、遮水
シート端部１ａは非加硫ブチルゴムテープ３３を介して
下層ゴムパッキン３４と上層ゴムパッキン３５との間に
接着積層され、ボルト列３１位置に保持されている。さ
らに遮水シート１を挟持したゴムパッキン３４，３５
は、ボルト列３１に沿って取付孔が形成されたステンレ
ス製フラットバー３６で押圧され、ナット３７によって
締着され定着位置に固定保持されている。さらにナット
３７には保護キャップ３８が被され、カバーシート４２
の破れ防止が図られている。本実施の形態ではシート厚
さ１．５mmの遮水シートが使用されているが、その厚さ
は遮水工として使用される遮水シートの仕様によって適
宜設定される。In the anchor bolt fixing portion 30, the water shield sheet end portion 1a is adhesively laminated between the lower rubber packing 34 and the upper rubber packing 35 via the non-vulcanized butyl rubber tape 33, and is held at the position of the bolt row 31. ing. Further, rubber packings 34 and 35 with the water-blocking sheet 1 sandwiched therebetween.
Is pressed by a stainless steel flat bar 36 having mounting holes formed along the bolt row 31, and is tightened by a nut 37 to be fixedly held at a fixing position. Further, the nut 37 is covered with a protective cap 38, and the cover sheet 42
It is designed to prevent tearing. In the present embodiment, a water-impervious sheet having a sheet thickness of 1.5 mm is used, but the thickness is appropriately set according to the specifications of the water-impervious sheet used as the water impermeable construction.
【００２５】（カバー部の構成）以下、カバー部４１の
構成について説明する。さらにアンカーボルト定着部３
０は、その全体が所定幅でアンカーボルト列３１に平行
して長手方向に設けられたカバー部４１のカバーシート
４２で完全に被覆されている。カバーシート４２の一方
の端部は止水部材１０のベース１１上に固着される。こ
のために止水部材１０は、図３に示したように、止水部
材１０が四角形状の取水孔３を囲むように□形状をなし
てコンクリートＣ内に図４，図５に示したように、ベー
ス１１表面がコンクリートＣ表面と面一になるように露
出し、その他の部分が完全にコンクリートＣ内に埋設さ
れている。この止水部材１０のベース１１にカバーシー
ト４２の一端がＦＰＡ肉盛樹脂４３によって固定保持さ
れている。(Structure of Cover Part) The structure of the cover part 41 will be described below. Anchor bolt fixing part 3
0 is completely covered with the cover sheet 42 of the cover portion 41 provided in the longitudinal direction in parallel with the anchor bolt row 31 with a predetermined width. One end of the cover sheet 42 is fixed on the base 11 of the water blocking member 10. For this reason, as shown in FIGS. 3A and 3B, the water blocking member 10 has a square shape so that the water blocking member 10 surrounds the rectangular water intake hole 3 and is formed in the concrete C as shown in FIGS. In addition, the surface of the base 11 is exposed so as to be flush with the surface of the concrete C, and the other portion is completely embedded in the concrete C. One end of the cover sheet 42 is fixedly held by the FPA overlay resin 43 on the base 11 of the water blocking member 10.
【００２６】カバーシート４２の他端は敷設された遮水
シート１面上に、同様のＦＰＡ肉盛樹脂４４で固定保持
されている。さらにアンカーボルト定着部３０を覆って
山形に膨らんだカバーシート４２内にはシール材４５が
充填されている。これにより止水効果が向上するととも
に、充填されたシール材４５が柔軟性のあるバックアッ
プ材として機能するため、カバーシート４２の形状が保
持され、シート破れ等が防止できる。The other end of the cover sheet 42 is fixedly held on the surface of the laid water-impervious sheet 1 by a similar FPA overlay resin 44. Further, a sealing material 45 is filled in the cover sheet 42 which bulges in a mountain shape to cover the anchor bolt fixing portion 30. As a result, the water blocking effect is improved, and since the filled sealing material 45 functions as a flexible backup material, the shape of the cover sheet 42 is maintained and sheet breakage or the like can be prevented.
【００２７】このような構成からなる遮水シート定着部
止水構造４０では、アンカーボルト定着部３０において
遮水シート端部１ａがアンカーボルト列３１によって確
実にコンクリート面に固定されるとともに、シール材４
５及びカバーシート４２で構成されたカバー部４１でア
ンカーボルト列３１が完全に被覆されるため、アンカー
ボルト定着部３０で懸念された漏水も全く心配なくな
る。In the water-blocking sheet fixing section water-stop structure 40 having such a structure, the water-blocking sheet end portion 1a of the anchor bolt fixing section 30 is securely fixed to the concrete surface by the anchor bolt row 31, and the sealing material is used. Four
Since the anchor bolt row 31 is completely covered by the cover portion 41 formed of the cover sheet 42 and the cover sheet 42, there is no fear of water leakage at the anchor bolt fixing portion 30.
【００２８】[0028]
【発明の効果】以上に述べたように、止水部材の断面形
状に止水フランジを形成するように特徴を持たせて止水
性能を高めるとともに、この止水部材の一部に定着され
たカバーシートによって遮水シート定着部におけるアン
カーボルトを被覆したので、遮水シート定着部での止水
性が向上し、耐久性のある遮水シート定着部を実現する
ことができるという効果がある。As described above, the cross-sectional shape of the water blocking member is provided with the feature of forming the water blocking flange to enhance the water blocking performance, and the water blocking member is fixed to a part of the water blocking member. Since the anchor bolts in the water impervious sheet fixing unit are covered with the cover sheet, there is an effect that the waterproofness in the water impervious sheet fixing unit is improved and a durable water impervious sheet fixing unit can be realized.
【図１】本発明の止水部材の一実施の形態における端面
を示した斜視図。FIG. 1 is a perspective view showing an end face in an embodiment of a water blocking member of the present invention.
【図２】図１に示した止水部材を用いた止水構造の一例
を示した断面図。FIG. 2 is a sectional view showing an example of a water blocking structure using the water blocking member shown in FIG.
【図３】構造物と遮水シートとの取り合い部における止
水構造の一実施の形態を、止水構造の一部を切り欠いて
示した概略斜視図。FIG. 3 is a schematic perspective view showing an embodiment of a water blocking structure in a joint portion between a structure and a water blocking sheet, with a part of the water blocking structure cut away.
【図４】遮水シート定着部止水構造の一部を断面で示し
た部分断面斜視図。FIG. 4 is a partial cross-sectional perspective view showing a cross-section of a part of the water blocking sheet fixing unit water blocking structure.
【図５】遮水シート定着部止水構造の一部を断面で示し
た部分断面図。FIG. 5 is a partial cross-sectional view showing a cross-section of a part of the water blocking structure of the water blocking sheet fixing unit.
【図６】従来の遮水シート定着部の一例を示した部分断
面図。FIG. 6 is a partial sectional view showing an example of a conventional water impermeable sheet fixing section.
【図７】従来の埋設タイプ止水部材の一例を示した斜視
図。FIG. 7 is a perspective view showing an example of a conventional buried type water blocking member.
【図８】図７に示した止水部材を用いた止水構造の一例
を示した断面図。8 is a cross-sectional view showing an example of a water blocking structure using the water blocking member shown in FIG.
１ 遮水シート ３ 取水孔 １０ 止水部材 １１ ベース １２ フランジ １３ 突起 １５ 止水フランジ ２０ 止水棒材 ３０ アンカーボルト定着部 ３１ アンカーボルト列 ４０ 遮水シート定着部止水構造 ４１ カバー部 ４２ カバーシート ４３，４４ 肉盛樹脂 ４５ シール材 1 Impermeable sheet 3 water intake holes 10 Water stop member 11 base 12 flange 13 Protrusion 15 Water stop flange 20 Water stop bar 30 Anchor bolt fixing part 31 anchor bolt row 40 Water-blocking sheet fixing unit water-stop structure 41 Cover 42 cover sheet 43,44 Overlay resin 45 Seal material
フロントページの続き (72)発明者 ▲高▼力 雅人 東京都港区芝浦一丁目２番３号 清水建設 株式会社内 (72)発明者 宮地 秀樹 大阪府大阪市西区江戸堀一丁目17番18号 東洋ゴム工業株式会社内 Ｆターム(参考） 2E001 DA01 DA05 FA29 FA30 GA24 HD11 HE01 LA01 LA04 LA11 4D004 AA46 AB01 BB05 BB06 Continued front page (72) Inventor ▲ High ▼ Masato Masato Shimizu Construction 1-3-2 Shibaura, Minato-ku, Tokyo Within the corporation (72) Inventor Hideki Miyaji 1-17-18 Edobori, Nishi-ku, Osaka City, Osaka Prefecture Toyo Tire & Rubber Co., Ltd. F-term (reference) 2E001 DA01 DA05 FA29 FA30 GA24 HD11 HE01 LA01 LA04 LA11 4D004 AA46 AB01 BB05 BB06
Claims (5)
方向中央位置に一体成形され、その表面に部材長手方向
に沿って延在する複数本の突起を有する止水フランジと
からなることを特徴とする止水部材。1. A water-stop flange having a groove-shaped cross-section and a plurality of projections integrally formed at a central position in the width direction of a base of the groove-shaped cross-section, the surface of which has a plurality of projections extending in the longitudinal direction of the member. A water-blocking member comprising:
ム成形品であることを特徴とする請求項１に記載の止水
部材。2. The waterproof member according to claim 1, which is an olefinic thermoplastic resin elastomer rubber molded product.
に沿って水膨潤性止水棒材が取り付けられたことを特徴
とする請求項１記載の止水部材。3. The water blocking member according to claim 1, wherein a water swellable water blocking rod is attached to a part of the water blocking flange along the longitudinal direction of the member.
ト面のアンカーボルト列にフラットバーを介して固定さ
れ、該アンカーボルト列が、アンカーボルト列に平行し
て前記コンクリート内に埋設された請求項１記載の止水
部材に一端が固着され、他端が前記遮水シート面に固着
されたカバーシートで被覆されたことを特徴とする遮水
シート定着部止水構造。4. An end of a water-blocking sheet is fixed to a row of anchor bolts on a concrete surface at a fixing position via a flat bar, and the row of anchor bolts is embedded in the concrete in parallel with the row of anchor bolts. A water blocking sheet fixing unit water blocking structure, wherein one end is fixed to the water blocking member according to claim 1, and the other end is covered with a cover sheet fixed to the water blocking sheet surface.
とは、オレフィン系熱可塑性樹脂エラストマーゴム成形
品であることを特徴とする請求項４に記載の止水構造。5. The water blocking structure according to claim 4, wherein the water blocking sheet, the water blocking member, and the cover sheet are olefin-based thermoplastic resin elastomer rubber molded products.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001396855A JP3831246B2 (en) | 2001-12-27 | 2001-12-27 | Water stop member and water blocking sheet fixing part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001396855A JP3831246B2 (en) | 2001-12-27 | 2001-12-27 | Water stop member and water blocking sheet fixing part |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2003190904A true JP2003190904A (en) | 2003-07-08 |
| JP3831246B2 JP3831246B2 (en) | 2006-10-11 |
Family
ID=27602811
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001396855A Expired - Fee Related JP3831246B2 (en) | 2001-12-27 | 2001-12-27 | Water stop member and water blocking sheet fixing part |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3831246B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008267014A (en) * | 2007-04-20 | 2008-11-06 | Taiyo Kogyo Corp | Liner sheet connector |
| JP2010265612A (en) * | 2009-05-12 | 2010-11-25 | Showa Konpo Shizai Kk | Inducing joint material |
| CN109208650A (en) * | 2017-06-30 | 2019-01-15 | 广东省水利水电第三工程局有限公司 | A kind of fixation device for copper seal |
-
2001
- 2001-12-27 JP JP2001396855A patent/JP3831246B2/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008267014A (en) * | 2007-04-20 | 2008-11-06 | Taiyo Kogyo Corp | Liner sheet connector |
| JP2010265612A (en) * | 2009-05-12 | 2010-11-25 | Showa Konpo Shizai Kk | Inducing joint material |
| CN109208650A (en) * | 2017-06-30 | 2019-01-15 | 广东省水利水电第三工程局有限公司 | A kind of fixation device for copper seal |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3831246B2 (en) | 2006-10-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2000282493A (en) | Water-stopping shield device | |
| JP4479575B2 (en) | Watertightness inspection method | |
| JP2016017357A (en) | Water cut-off structure and water cut-off method | |
| JP4108460B2 (en) | Construction method of tunnel still water structure | |
| EP0501004B1 (en) | Seal for joint, and method of installing same seal | |
| JP2003190904A (en) | Water stop member and water stop structure of water shielding sheet fixation part | |
| JP4287011B2 (en) | Impermeable sheet laying structure and impermeable sheet laying method | |
| JP2009084949A (en) | Water-cut off joint structure of steel pipe sheet pile | |
| JP4567564B2 (en) | Underwater waterproof flexible joint | |
| JP4143793B2 (en) | Tunnel structure lining structure | |
| JP2008279316A (en) | Impervious structure at revetment of reclaimed area | |
| JP3528095B2 (en) | Water leakage prevention structure at the edge of the impermeable sheet | |
| JP3908416B2 (en) | Underwater joint for high water pressure | |
| JPH08296399A (en) | Embedment method for joint groove in underground pipeline | |
| JP3205797B2 (en) | Manufacturing method of precast reinforced concrete board with decorative board tip | |
| JP2891670B2 (en) | Flexible joint structure of concrete product and concrete product having the flexible joint structure | |
| JPH04319135A (en) | Repairing structure for underground conduit line, and its manufacture | |
| KR200286472Y1 (en) | water stop sealing | |
| JP2514127Y2 (en) | Concrete block with waterproof joint | |
| JP2003301456A (en) | Composite underground wall and execution method therefor, and cut-off material expandable with water | |
| JPS636246Y2 (en) | ||
| JP2009030241A (en) | Water cutoff structure of earth retaining wall, and method of constructing water cutoff structure | |
| JP2553994B2 (en) | Anticorrosion sheet Floor construction method and precast board used for it | |
| JP3298100B2 (en) | Waterproof segment for shield tunnel and its construction method | |
| JP4628906B2 (en) | Manufacturing method of water shielding sheet structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20060227 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20060406 |
|
| A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20060601 |
|
| TRDD | Decision of grant or rejection written | ||
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20060704 |
|
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20060713 |
|
| R150 | Certificate of patent or registration of utility model |
Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120721 Year of fee payment: 6 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120721 Year of fee payment: 6 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130721 Year of fee payment: 7 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130721 Year of fee payment: 7 |
|
| S531 | Written request for registration of change of domicile |
Free format text: JAPANESE INTERMEDIATE CODE: R313531 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130721 Year of fee payment: 7 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| LAPS | Cancellation because of no payment of annual fees |