JP5504231B2

JP5504231B2 - Wall waterproofing method and waterproof wall

Info

Publication number: JP5504231B2
Application number: JP2011201504A
Authority: JP
Inventors: 征人菅野; 鋭一菅野; 裕之菅野
Original assignee: 征人菅野
Priority date: 2011-09-15
Filing date: 2011-09-15
Publication date: 2014-05-28
Anticipated expiration: 2031-09-15
Also published as: JP2013060781A

Description

本発明は、地下施設の防護壁を通じて地下水が流れ込むのを防止する等の用途に適する壁面防水工法と防水壁に関する。 The present invention relates to a wall surface waterproofing method and a waterproof wall suitable for uses such as preventing underground water from flowing through a protective wall of an underground facility.

地下施設には、山留め壁の内側に丈夫なコンクリート壁を施す。コンクリート壁は防水性が不十分なため、山留め壁とコンクリート壁の間に防水シートを挟み込む。コンクリート壁を施工する前に、山留め壁のＨ鋼に、多数の鉄棒の一端を接続する。この鉄棒の他端は、コンクリートの型枠を支持する。防水シートに多数の鉄棒を貫通させるから、その貫通孔の部分から水漏れが生じるおそれがある。この水漏れを止めるための工法と装置が開発されている（特許文献１） In the underground facility, a strong concrete wall will be applied inside the retaining wall. Since the concrete wall is not waterproof enough, a waterproof sheet is inserted between the retaining wall and the concrete wall. Before constructing the concrete wall, one end of a number of iron bars is connected to H steel of the retaining wall. The other end of the iron bar supports a concrete formwork. Since a large number of iron bars are penetrated through the waterproof sheet, there is a possibility that water leaks from the through holes. A construction method and device for stopping this water leakage have been developed (Patent Document 1).

特許３０８３２７１号公報Japanese Patent No. 3083271 特許４２９４７０７号公報Japanese Patent No. 4294707

既知の従来の技術には、次のような解決すべき課題があった。
地下施設の断熱性を向上させるために、コンクリート壁と山留め壁の間に断熱性のボード（断熱材）を挟み込む工法が開発された。断熱材は、四角形のボードであり、鉄棒を貫通させる貫通孔のみならず、ボードの境界も止水工事を必要とする。これには、堅牢で、かつ、高い水圧に対して十分に対応できる工法の開発が求められている。
上記の課題を解決するために、本発明は、既知の止水装置の特性を生かした堅牢で信頼性の高い壁面防水工法と防水壁を提供することを目的とする。 The known prior art has the following problems to be solved.
In order to improve the thermal insulation of underground facilities, a construction method has been developed in which a thermal insulating board (insulation material) is sandwiched between a concrete wall and a mountain retaining wall. The heat insulating material is a rectangular board, and not only the through-hole through which the iron bar penetrates but also the boundary of the board requires water-stopping work. This requires the development of a construction method that is robust and can sufficiently cope with high water pressure.
In order to solve the above-described problems, an object of the present invention is to provide a robust and reliable wall waterproofing method and a waterproof wall that make use of the characteristics of a known water stop device.

以下の構成はそれぞれ上記の課題を解決するための手段である。
〈構成１〉
壁体１２に断熱材４４と防水シート４８とを順に重ねて固定し、壁体１２に固定したビット１８の連結ネジ部２２にビット連結部２８を固定し前記断熱材４４と防水シート４８を貫通した調整パイプ２６の他端側でコンクリート型枠６０を支持し、前記防水シート４８とコンクリート型枠６０との間にコンクリート壁６２を形成する工法であって、前記断熱材４４には前記調整パイプ２６を貫通させる貫通孔４６が設けられ、前記ビット１８には、第１止水リング３２が装着され、この第１止水リング３２には、前記ビット１８の連結ネジ部２２側を貫通させる中心孔３６と、前記断熱材４４に向かう面に凹陥部４０を形成した弾性皿部３８と、この凹陥部４０に収容されて、前記断熱材４４の貫通孔４６周辺に密着する止水材４２とが設けられ、前記第１止水リング３２を、前記壁体１２と前記断熱材４４に押し潰されるように挟み込み、前記弾性皿部３８の凹陥部４０から押し出された前記止水材４２を、前記ビット１８に近い前記調整パイプ２６と前記断熱材４４の貫通孔４６との間隙に流れ込ませ、前記防水シート４８の透孔５０から突き出た調整パイプ２６には、第２止水リング３４が装着され、この第２止水リング３４には、前記調整パイプ２６を貫通させる中心孔５２と、前記防水シート４８に向かう面に凹陥部５６を形成した弾性皿部５４と、この弾性皿部５４に収容されて、前記防水シート４８の透孔５０周辺に密着する止水材５８とが設けられ、前記第２止水リング３４を、前記防水シート４８と前記コンクリート壁６２に押し潰されるように挟み込み、前記弾性皿部５４の凹陥部５６から押し出された前記止水材５８を、前記防水シート４８の透孔５０の周辺と、この透孔５０に近い前記調整パイプ２６と前記断熱材４４の貫通孔４６との間隙に流れ込ませることを特徴とする壁面防水工法。 The following configurations are means for solving the above-described problems.
<Configuration 1>
A heat insulating material 44 and a waterproof sheet 48 are overlapped and fixed to the wall body 12 in this order, and the bit connecting portion 28 is fixed to the connecting screw portion 22 of the bit 18 fixed to the wall body 12 to penetrate the heat insulating material 44 and the waterproof sheet 48. The concrete pipe 60 is supported on the other end side of the adjusted pipe 26, and a concrete wall 62 is formed between the waterproof sheet 48 and the concrete mold 60. 26, a first water stop ring 32 is attached to the bit 18, and the first water stop ring 32 has a center through which the connecting thread 22 side of the bit 18 passes. A hole 36, an elastic dish portion 38 having a recessed portion 40 formed on the surface facing the heat insulating material 44, and a water blocking material 42 accommodated in the recessed portion 40 and closely attached to the periphery of the through hole 46 of the heat insulating material 44. Provided The first water stop ring 32 is sandwiched between the wall body 12 and the heat insulating material 44 so as to be crushed, and the water stop material 42 pushed out from the recessed portion 40 of the elastic dish portion 38 is inserted into the bit. A second water stop ring 34 is attached to the adjustment pipe 26 that flows into the gap between the adjustment pipe 26 close to 18 and the through hole 46 of the heat insulating material 44 and protrudes from the through hole 50 of the waterproof sheet 48. The second water stop ring 34 is housed in the central hole 52 that allows the adjustment pipe 26 to pass through, the elastic dish part 54 in which the recessed part 56 is formed on the surface facing the waterproof sheet 48, and the elastic dish part 54. A waterproofing material 58 that is in close contact with the periphery of the through hole 50 of the waterproof sheet 48, and sandwiches the second waterproofing ring 34 so as to be crushed by the waterproof sheet 48 and the concrete wall 62, The water blocking material 58 pushed out from the recessed portion 56 of the sexual dish portion 54 is arranged around the through hole 50 of the waterproof sheet 48, the adjustment pipe 26 close to the through hole 50, and the through hole 46 of the heat insulating material 44. Wall waterproofing method characterized by flowing into the gap between

〈構成２〉
壁体１２に断熱材４４と防水シート４８とを順に重ねて固定し、壁体１２に固定したビット１８の連結ネジ部２２にビット連結部２８を固定し前記断熱材４４と防水シート４８を貫通した調整パイプ２６の他端側で支持したコンクリート型枠６０と前記防水シート４８との間に形成したコンクリート壁６２を有する壁であって、前記断熱材４４には前記調整パイプ２６を貫通させる貫通孔４６が設けられ、前記ビット１８には、第１止水リング３２が装着され、この第１止水リング３２には、前記ビット１８の連結ネジ部２２側を貫通させる中心孔３６と、前記断熱材４４に向かう面に凹陥部４０を形成した弾性皿部３８と、この凹陥部４０に収容されて、前記断熱材４４の貫通孔４６周辺に密着する止水材４２とが設けられ、前記第１止水リング３２は、前記壁体１２と前記断熱材４４に押し潰されるように挟み込まれ、前記弾性皿部３８の凹陥部４０から押し出された前記止水材４２が、前記ビット１８に近い前記調整パイプ２６と前記断熱材４４の貫通孔４６との間隙に流れ込んだ状態にあり、前記防水シート４８の透孔５０から突き出た調整パイプ２６には、第２止水リング３４が装着され、この第２止水リング３４には、前記調整パイプ２６を貫通させる中心孔５２と、前記防水シート４８に向かう面に凹陥部５６を形成した弾性皿部５４と、この弾性皿部５４に収容されて、前記防水シート４８の透孔５０周辺に密着する止水材５８とが設けられ、前記第２止水リング３４は、前記防水シート４８と前記コンクリート壁６２に押し潰されるように挟み込まれ、前記弾性皿部５４の凹陥部５６から押し出された前記止水材５８が、前記防水シート４８の透孔５０の周辺と、この透孔５０に近い前記調整パイプ２６と前記断熱材４４の貫通孔４６との間隙に流れ込んだ状態にあることを特徴とする防水壁。 <Configuration 2>
A heat insulating material 44 and a waterproof sheet 48 are overlapped and fixed to the wall body 12 in this order, and the bit connecting portion 28 is fixed to the connecting screw portion 22 of the bit 18 fixed to the wall body 12 to penetrate the heat insulating material 44 and the waterproof sheet 48. A wall having a concrete wall 62 formed between the concrete mold 60 supported on the other end of the adjusted pipe 26 and the waterproof sheet 48, and the heat insulating material 44 penetrates the adjusting pipe 26. A hole 46 is provided, and a first water stop ring 32 is attached to the bit 18. The first water stop ring 32 has a center hole 36 that penetrates the connecting screw portion 22 side of the bit 18, and the An elastic dish portion 38 having a recessed portion 40 formed on the surface facing the heat insulating material 44, and a water stop material 42 accommodated in the recessed portion 40 and closely attached to the periphery of the through hole 46 of the heat insulating material 44 are provided. 1st water stop 32 is sandwiched between the wall body 12 and the heat insulating material 44 so that the water blocking material 42 pushed out from the recessed portion 40 of the elastic dish portion 38 is close to the bit 18. 26 and the through hole 46 of the heat insulating material 44, the second water stop ring 34 is attached to the adjustment pipe 26 protruding from the through hole 50 of the waterproof sheet 48. The water stop ring 34 is accommodated in the center hole 52 that allows the adjustment pipe 26 to pass through, the elastic dish part 54 having a recessed part 56 formed on the surface facing the waterproof sheet 48, and the elastic dish part 54. A waterproofing material 58 is provided in close contact with the periphery of the through hole 50 of the waterproof sheet 48, and the second waterproof ring 34 is sandwiched between the waterproof sheet 48 and the concrete wall 62 so as to be elastic. The water blocking material 58 pushed out from the recessed portion 56 of the portion 54 is formed between the periphery of the through hole 50 of the waterproof sheet 48, the adjustment pipe 26 close to the through hole 50, and the through hole 46 of the heat insulating material 44. A waterproof wall characterized by being in a state of flowing into a gap.

〈構成３〉
壁体１２に板材と防水シート４８とを順に重ねて固定し、壁体１２に固定したビット１８の連結ネジ部２２にビット連結部２８を固定し前記板材４４と防水シート４８を貫通した調整パイプ２６の他端側でコンクリート型枠６０を支持し、前記防水シート４８とコンクリート型枠６０との間にコンクリート壁６２を形成する工法であって、前記板材４４には前記調整パイプ２６を貫通させる貫通孔４６が設けられ、前記ビット１８には、第１止水リング３２が装着され、この第１止水リング３２には、前記ビット１８の連結ネジ部２２側を貫通させる中心孔３６と、前記断熱材４４に向かう面に凹陥部４０を形成した弾性皿部３８と、この凹陥部４０に収容されて、前記断熱材４４の貫通孔４６周辺に密着する止水材４２とが設けられ、前記第１止水リング３２を、前記壁体１２と前記板材４４に押し潰されるように挟み込み、前記弾性皿部３８の凹陥部４０から押し出された前記止水材４２を、前記板材の貫通孔４６周辺に密着させ、前記防水シート４８の透孔５０から突き出た調整パイプ２６には、第２止水リング３４が装着され、この第２止水リング３４には、前記調整パイプ２６を貫通させる中心孔５２と、前記防水シート４８に向かう面に凹陥部５６を形成した弾性皿部５４と、この弾性皿部５４に収容されて、前記防水シート４８の透孔５０周辺に密着する止水材５８とが設けられ、前記第２止水リング３４を、前記防水シート４８と前記コンクリート壁６２に押し潰されるように挟み込み、前記弾性皿部５４の凹陥部５６から押し出された前記止水材５８を、前記防水シート４８の透孔５０の周辺に密着させることを特徴とする壁面防水工法。 <Configuration 3>
A plate and a waterproof sheet 48 are sequentially stacked and fixed on the wall body 12, and a bit connecting portion 28 is fixed to a connection screw portion 22 of the bit 18 fixed to the wall body 12, and an adjustment pipe penetrating the plate material 44 and the waterproof sheet 48. 26, a concrete mold 60 is supported on the other end side, and a concrete wall 62 is formed between the waterproof sheet 48 and the concrete mold 60, and the adjusting pipe 26 is passed through the plate member 44. A through hole 46 is provided, and the first water stop ring 32 is attached to the bit 18. The first water stop ring 32 has a center hole 36 through which the connecting screw portion 22 side of the bit 18 passes, An elastic dish portion 38 having a recessed portion 40 formed on the surface facing the heat insulating material 44, and a water stop material 42 accommodated in the recessed portion 40 and closely attached to the periphery of the through hole 46 of the heat insulating material 44; Above 1 The water stop ring 32 is sandwiched between the wall body 12 and the plate material 44 so that the water stop material 42 pushed out from the recessed portion 40 of the elastic dish portion 38 is placed around the through hole 46 of the plate material. The adjustment pipe 26 protruding from the through hole 50 of the waterproof sheet 48 is fitted with a second water stop ring 34, and the second water stop ring 34 has a central hole through which the adjustment pipe 26 passes. 52, an elastic dish part 54 having a recessed part 56 formed on the surface facing the waterproof sheet 48, and a water stop material 58 accommodated in the elastic dish part 54 and closely attached to the periphery of the through hole 50 of the waterproof sheet 48 The second water stop ring 34 is sandwiched between the waterproof sheet 48 and the concrete wall 62 so as to be crushed, and the water stop material 58 pushed out from the recessed portion 56 of the elastic dish portion 54 is provided. The prevention Wall waterproofing construction method, characterized in that to come into close contact with the periphery of the through-hole 50 of the seat 48.

〈構成４〉
壁体１２に板材と防水シート４８とを順に重ねて固定し、壁体１２に固定したビット１８の連結ネジ部２２にビット連結部２８を固定し前記板材４４と防水シート４８を貫通した調整パイプ２６の他端側でコンクリート型枠６０を支持し、前記防水シート４８とコンクリート型枠６０との間にコンクリート壁６２を形成した壁であって、前記板材４４には前記調整パイプ２６を貫通させる貫通孔４６が設けられ、前記ビット１８には、第１止水リング３２が装着され、この第１止水リング３２には、前記ビット１８の連結ネジ部２２側を貫通させる中心孔３６と、前記断熱材４４に向かう面に凹陥部４０を形成した弾性皿部３８と、この凹陥部４０に収容されて、前記断熱材４４の貫通孔４６周辺に密着する止水材４２とが設けられ、前記第１止水リング３２は、前記壁体１２と前記板材４４に押し潰されるように挟み込まれ、前記弾性皿部３８の凹陥部４０から押し出された前記止水材４２が、前記板材の貫通孔４６周辺に密着しており、前記防水シート４８の透孔５０から突き出た調整パイプ２６には、第２止水リング３４が装着され、この第２止水リング３４には、前記調整パイプ２６を貫通させる中心孔５２と、前記防水シート４８に向かう面に凹陥部５６を形成した弾性皿部５４と、この弾性皿部５４に収容されて、前記防水シート４８の透孔５０周辺に密着する止水材５８とが設けられ、前記第２止水リング３４は、前記防水シート４８と前記コンクリート壁６２に押し潰されるように挟み込まれ、前記弾性皿部５４の凹陥部５６から押し出された前記止水材５８が、前記防水シート４８の透孔５０の周辺に密着していることを特徴とする防水壁。 <Configuration 4>
A plate and a waterproof sheet 48 are sequentially stacked and fixed on the wall body 12, and a bit connecting portion 28 is fixed to a connection screw portion 22 of the bit 18 fixed to the wall body 12, and an adjustment pipe penetrating the plate material 44 and the waterproof sheet 48. 26 is a wall in which the concrete mold 60 is supported on the other end side of the H. 26, and a concrete wall 62 is formed between the waterproof sheet 48 and the concrete mold 60, and the adjustment pipe 26 is passed through the plate member 44. A through hole 46 is provided, and the first water stop ring 32 is attached to the bit 18. The first water stop ring 32 has a center hole 36 through which the connecting screw portion 22 side of the bit 18 passes, An elastic dish portion 38 having a recessed portion 40 formed on the surface facing the heat insulating material 44, and a water stop material 42 accommodated in the recessed portion 40 and closely attached to the periphery of the through hole 46 of the heat insulating material 44; Said The water stop ring 32 is sandwiched between the wall body 12 and the plate member 44 so that the water stop member 42 pushed out from the recessed portion 40 of the elastic dish portion 38 is formed around the through hole 46 of the plate member. The adjustment pipe 26 protruding from the through hole 50 of the waterproof sheet 48 is fitted with a second water stop ring 34, and the adjustment pipe 26 is passed through the second water stop ring 34. A center hole 52, an elastic dish part 54 having a recessed part 56 formed on the surface facing the waterproof sheet 48, and a water stop material that is accommodated in the elastic dish part 54 and is in close contact with the periphery of the through hole 50 of the waterproof sheet 48 58, and the second water stop ring 34 is sandwiched between the waterproof sheet 48 and the concrete wall 62 so as to be crushed and pushed out from the recessed portion 56 of the elastic dish portion 54. 58 Waterproof walls, characterized in that is in close contact with the periphery of the through-hole 50 of the serial tarpaulin 48.

〈構成５〉
構成２または４に記載の防水壁において、第１止水リング３２は、凹陥部４０が中心孔３６に近づくほど深く中心孔３６に近い部分に周縁部に比べて多量の止水材５８が収容された構造のものであって、肉厚の薄い中心孔３６に近い部分が押し潰された状態で、第１止水リング３２が鋼材１４と断熱材４４の間に挟み込まれていることを特徴とする防水壁。 <Configuration 5>
In the waterproof wall according to Configuration 2 or 4, in the first water stop ring 32, a larger amount of the water stop material 58 is accommodated in a portion closer to the center hole 36 as the recessed portion 40 approaches the center hole 36 than in the peripheral portion. The first water stop ring 32 is sandwiched between the steel material 14 and the heat insulating material 44 in a state where the portion close to the thin central hole 36 is crushed. And waterproof wall.

〈構成６〉
構成２または４に記載の防水壁において、第２止水リング３４は、凹陥部５６の深さがどの部分もほぼ一定で、中心孔５２の軸に対して垂直な壁を構成する部分の肉厚Ｔ１を、中心孔５２の軸に対して平行な壁を構成する部分の肉厚Ｔ２よりも大きくした構造のものであって、中心孔５２の内径は、ビット１８の工具掛け部２４の外径に近い値に設定し、前記第２止水リング３４が鋼材１４と断熱材４４の間に挟み込まれていることを特徴とする防水壁。 <Configuration 6>
In the waterproof wall according to Configuration 2 or 4, the second water stop ring 34 is formed of a portion of the wall constituting the wall perpendicular to the axis of the center hole 52 with the depth of the recessed portion 56 being substantially constant at any portion. The thickness T1 is larger than the thickness T2 of the portion constituting the wall parallel to the axis of the center hole 52, and the inner diameter of the center hole 52 is outside the tool hook portion 24 of the bit 18. A waterproof wall characterized in that it is set to a value close to the diameter, and the second water stop ring 34 is sandwiched between the steel material 14 and the heat insulating material 44.

〈構成７〉
構成２または４に記載の防水壁において、第１止水リング３２は、凹陥部４０が中心孔３６に近づくほど深く中心孔３６に近い部分に周縁部に比べて多量の止水材５８が収容された構造のものであって、肉厚の薄い中心孔３６に近い部分が押し潰された状態で、第１止水リング３２を防水シート４８とコンクリート壁６２の間に挟み込まれていることを特徴とする防水壁。 <Configuration 7>
In the waterproof wall according to Configuration 2 or 4, in the first water stop ring 32, a larger amount of the water stop material 58 is accommodated in a portion closer to the center hole 36 as the recessed portion 40 approaches the center hole 36 than in the peripheral portion. The first water stop ring 32 is sandwiched between the waterproof sheet 48 and the concrete wall 62 in a state where the portion close to the thin central hole 36 is crushed. Features a waterproof wall.

〈構成８〉
構成２または４に記載の防水壁において、第２止水リング３４は、凹陥部５６の深さがどの部分もほぼ一定で、中心孔５２の軸に対して垂直な壁を構成する部分の肉厚Ｔ１を、中心孔５２の軸に対して平行な壁を構成する部分の肉厚Ｔ２よりも大きくした構造のものであって、第２止水リング３４を防水シート４８とコンクリート壁６２の間に挟み込まれていることを特徴とする防水壁。 <Configuration 8>
In the waterproof wall according to Configuration 2 or 4, the second water stop ring 34 is formed of a portion of the wall constituting the wall perpendicular to the axis of the center hole 52 with the depth of the recessed portion 56 being substantially constant at any portion. The thickness T1 is larger than the thickness T2 of the portion constituting the wall parallel to the axis of the center hole 52, and the second water stop ring 34 is provided between the waterproof sheet 48 and the concrete wall 62. A waterproof wall characterized by being sandwiched between the two.

〈構成１の効果〉
第１止水リング３２をビット１８に装着するとき、ビット１８の連結ネジ部２２に付着した止水材４２は、ビット１８の連結ネジ部２２と調整パイプ２６のビット連結部２８との間に流れ込んで、両者の間の漏水を阻止する。また、第１止水リング３２が、壁体１２と断熱材４４に押し潰されて、前記弾性皿部３８の凹陥部４０から押し出された前記止水材４２が、調整パイプ２６と断熱材４４の貫通孔４６との間隙に流れ込むので、この間隙の漏水を阻止する。さらに、第２止水リング３４が、防水シート４８とコンクリート壁６２に押し潰されて、弾性皿部５４の凹陥部５６から押し出された止水材５８が、防水シート４８の透孔５０の周辺と、この透孔５０に近い調整パイプ２６と断熱材４４の貫通孔４６との間隙に流れ込むので、この間隙の漏水を阻止する。また、断熱材４４の貫通孔４６の両端を第１止水リング３２と第２止水リング３４とが挟み込んでいるので、止水材が溢れて他の場所に逃げてしまうのを防止できる。
〈構成３の効果〉
任意の板材についても、構成１と同様に第１止水リング３２と第２止水リング３４とで板材や防水シートの貫通孔を塞ぐことにより、貫通孔を通じての漏水を防止できる。
〈構成５の効果〉
止水材５８を貫通孔４６に十分圧入することができる。
〈構成６の効果〉
止水リング全体を変形させずに使用し、止水材５８を必要なだけ、貫通孔４６に圧入することができる。
〈構成７の効果〉
止水材５８を貫通孔４６に十分圧入することができる。
〈構成８の効果〉
止水リング全体を平均に止水材５８とともに防水シート４８に押しつけることができる。 <Effect of Configuration 1>
When the first water stop ring 32 is attached to the bit 18, the water stop material 42 attached to the connection screw portion 22 of the bit 18 is between the connection screw portion 22 of the bit 18 and the bit connection portion 28 of the adjustment pipe 26. It flows in and prevents water leakage between them. In addition, the first water stop ring 32 is crushed by the wall body 12 and the heat insulating material 44, and the water stop material 42 pushed out from the recessed portion 40 of the elastic dish portion 38 is the adjustment pipe 26 and the heat insulating material 44. Since it flows into the gap with the through-hole 46, leakage of the gap is prevented. Further, the second water stop ring 34 is crushed by the waterproof sheet 48 and the concrete wall 62, and the water stop material 58 pushed out from the recessed part 56 of the elastic dish part 54 is around the through hole 50 of the waterproof sheet 48. Then, since it flows into the gap between the adjustment pipe 26 close to the through hole 50 and the through hole 46 of the heat insulating material 44, leakage of the gap is prevented. Moreover, since the 1st water stop ring 32 and the 2nd water stop ring 34 have pinched | interposed the both ends of the through-hole 46 of the heat insulating material 44, it can prevent that a water stop material overflows and escapes to another place.
<Effect of Configuration 3>
As for any plate material, similarly to the first configuration, the first water stop ring 32 and the second water stop ring 34 close the through hole of the plate material or the waterproof sheet, thereby preventing water leakage through the through hole.
<Effect of Configuration 5>
The water blocking material 58 can be sufficiently pressed into the through hole 46.
<Effect of Configuration 6>
The entire water stop ring can be used without being deformed, and the water stop material 58 can be pressed into the through hole 46 as much as necessary.
<Effect of Configuration 7>
The water blocking material 58 can be sufficiently pressed into the through hole 46.
<Effect of Configuration 8>
The entire water stop ring can be pressed against the waterproof sheet 48 together with the water stop material 58 on average.

実施例１の壁面防水工法や止水壁に使用する主要な部材の縦断面図である。It is a longitudinal cross-sectional view of the main members used for the wall surface waterproofing construction method of Example 1, or a water stop wall. 本発明の工法を順を追って図示した主要部縦断面図（１）である。It is a principal part longitudinal cross-sectional view (1) which illustrated the construction method of this invention later on. 本発明の工法を順を追って図示した主要部縦断面図（２）である。It is a principal part longitudinal cross-sectional view (2) which illustrated the construction method of this invention later on. 本発明の工法を順を追って図示した主要部縦断面図（３）である。It is a principal part longitudinal cross-sectional view (3) which illustrated the construction method of this invention later on. 本発明の工法を順を追って図示した主要部縦断面図（４）である。It is a principal part longitudinal cross-sectional view (4) which illustrated the construction method of this invention later on. 本発明の工法を順を追って図示した主要部縦断面図（５）である。It is a principal part longitudinal cross-sectional view (5) which illustrated the construction method of this invention later on. 本発明の工法を順を追って図示した主要部縦断面図（６）である。It is a principal part longitudinal cross-sectional view (6) which illustrated the construction method of this invention later on. 本発明の工法を順を追って図示した主要部縦断面図（７）である。It is a principal part longitudinal cross-sectional view (7) which illustrated the construction method of this invention later on. 本発明の工法を順を追って図示した主要部縦断面図（８）である。It is a principal part longitudinal cross-sectional view (8) which illustrated the construction method of this invention later on. 本発明の工法を順を追って図示した主要部縦断面図（９）である。It is a principal part longitudinal cross-sectional view (9) which illustrated the construction method of this invention later on. 実施例２のの壁面防水工法を説明する主要部縦断面図である。It is a principal part longitudinal cross-sectional view explaining the wall surface waterproofing construction method of Example 2. FIG. 第１止水リング３２と第２止水リング３４の変形の程度を示す縦断面図である。5 is a longitudinal sectional view showing the degree of deformation of the first water stop ring 32 and the second water stop ring 34. FIG.

以下、本発明の実施の形態を実施例毎に詳細に説明する。 Hereinafter, embodiments of the present invention will be described in detail for each example.

図１は実施例１の壁面防水工法や止水壁に使用する主要な部材の縦断面図である。
（ａ）の壁体１２は、例えば、地下施設施工の際に始めに設ける山留め壁である。Ｈ鋼等の鋼材１４が打ち込まれている。この壁体１２の内側に、断熱材４４と防水シート４８とを順に重ねて固定する。壁体１２はの構造はこのほかに、例えば、金属板や木材を使用したものが考えられる。いずれも、ビット１８を接続することができる構造のものであればよい。 FIG. 1 is a longitudinal sectional view of main members used in the wall waterproofing method and the water blocking wall of the first embodiment.
The wall body 12 of (a) is, for example, a mountain retaining wall that is provided first when the underground facility is constructed. A steel material 14 such as H steel is driven. Inside the wall 12, a heat insulating material 44 and a waterproof sheet 48 are stacked and fixed in order. In addition to the structure of the wall body 12, for example, a structure using a metal plate or wood may be considered. In any case, any structure that can connect the bit 18 may be used.

（ｂ）の断熱材４４は例えば、発泡ポリスチレン等の板である。厚みは数センチメートル、縦横１〜２メートル程度のもので、山留め壁の内側全体を覆うように並べられる。なお、この実施例では、断熱材４４を例示して説明をするが、補強用、防水用、衝撃緩和用等の各種の用途の板材を使用することもできる。本発明では任意の板材を採用することができる。 The heat insulating material 44 of (b) is, for example, a plate such as expanded polystyrene. The thickness is about several centimeters and about 1 to 2 meters in length and width, and they are arranged so as to cover the entire inside of the retaining wall. In this embodiment, the heat insulating material 44 will be described as an example, but plate materials for various purposes such as reinforcement, waterproofing, and impact mitigation can also be used. In the present invention, any plate material can be adopted.

（ｃ）の防水シート４８は、例えば、繊維で強化したウレタン系、あるいはアスファルト系の樹脂シートである。山留め壁の内側を隙間なく覆い、繋ぎ目も確実に水漏れを防止するように施工される。この実施例では、断熱材４４自体やその継ぎ目に防水性が無いために防水シート４８を使用するが、断熱材４４の代わりに水密性の高い板材を隙間なく継ぎ合わせて使用する場合には、防水シート４８は不要である。断熱材４４には調整パイプ２６を貫通させる貫通孔４６が設けられる。 The waterproof sheet 48 of (c) is, for example, a urethane-based or asphalt-based resin sheet reinforced with fibers. The inside of the mountain retaining wall is covered without any gaps, and the joints are also constructed to prevent water leaks. In this embodiment, the waterproof sheet 48 is used because the heat insulating material 44 itself and its joint are not waterproof, but when using a highly watertight plate material instead of the heat insulating material 44 without gaps, The waterproof sheet 48 is unnecessary. The heat insulating material 44 is provided with a through hole 46 through which the adjustment pipe 26 passes.

（ｄ）はビット１８の側面図である。このビット１８は、高強度の鉄合金により構成され、一方にタッピングネジ部２０を有し他方に連結ネジ部２２を有し、中間に工具掛け部２４を有している。タッピングネジ部２０は、鋼材１４に設けたタッピンク穴１６にタップを切りながらねじ込まれる部分である。工具掛け部２４に電気ドリルを装着して取り付ける。連結ネジ部２２は調整パイプ２６を連結するための雄ねじである。 (D) is a side view of the bit 18. The bit 18 is made of a high-strength iron alloy, has a tapping screw portion 20 on one side, a connecting screw portion 22 on the other side, and a tool hook portion 24 in the middle. The tapping screw portion 20 is a portion that is screwed into the tappin hole 16 provided in the steel material 14 while cutting the tap. An electric drill is attached to the tool hook 24 and attached. The connecting screw portion 22 is a male screw for connecting the adjustment pipe 26.

（ｅ）は、調整パイプ２６の部分縦断側面図である。この調整パイプ２６は、一端にビット連結部２８を備え、他端に型枠支持材連結部３０を備える。ビット連結部２８は上記の連結ネジ部２２と接続をするための雌ねじである。調整パイプ２６の内側全面に雌ねじが切られており、調整パイプ２６の長さを延長する金具を固定することができる。この金具（図示しない）に型枠６０が固定される。この金具等の部品を型枠支持材と呼んでいる。 FIG. 4E is a partial longitudinal side view of the adjustment pipe 26. The adjustment pipe 26 includes a bit connecting portion 28 at one end and a mold support connecting portion 30 at the other end. The bit connecting portion 28 is a female screw for connecting to the connecting screw portion 22 described above. An internal thread is cut on the entire inner surface of the adjustment pipe 26, and a metal fitting that extends the length of the adjustment pipe 26 can be fixed. The mold 60 is fixed to this metal fitting (not shown). Parts such as metal fittings are called formwork support materials.

型枠支持材連結部３０の外周部分はスパナを装着できる形状が好ましい。ビット１８の連結ネジ部２２の全長よりも、断熱材４４の厚みが大きい。そこで、調整パイプ２６をビット１８に接続してから、断熱材４４を装着する。調整パイプ２６は少なくとも断熱材４４の貫通孔４６から型枠支持材連結部３０を突き出して、第２止水リング３４を装着できる長さであることが好ましい。 The outer periphery of the formwork support member connecting portion 30 is preferably shaped so that a spanner can be attached. The thickness of the heat insulating material 44 is larger than the total length of the connecting screw portion 22 of the bit 18. Therefore, after the adjustment pipe 26 is connected to the bit 18, the heat insulating material 44 is attached. It is preferable that the adjustment pipe 26 has a length that allows the second water stop ring 34 to be mounted by protruding the formwork support member connecting portion 30 from at least the through hole 46 of the heat insulating material 44.

また、このような構造の場合には、ビット１８と調整パイプ２６とを一体化しておくことも考えられるが、タップを切りながらねじ込むビット１８は、ドリルに装着して高いトルクを加える強度が必要なため、調整パイプ２６とは別体のものが好ましい。また、断熱材４４の厚みはまちまちであり、断熱材４４の代わりに使用される各種の板材の厚みも予想がつかない。従って、使用される板材の厚みに合わせて調整パイプ２６の長さを自由に選択できるのが最も好ましい。 In such a structure, it is conceivable to integrate the bit 18 and the adjusting pipe 26. However, the bit 18 to be screwed while cutting the tap needs to be strong enough to attach a drill and apply high torque. Therefore, a separate body from the adjustment pipe 26 is preferable. Further, the thickness of the heat insulating material 44 varies, and the thickness of various plate materials used in place of the heat insulating material 44 cannot be predicted. Therefore, it is most preferable that the length of the adjusting pipe 26 can be freely selected according to the thickness of the plate material to be used.

（ｆ）の第１止水リング３２と（ｇ）の第２止水リング３４とは、いずれも、特許文献１に記載された止水装置と同様の機能を持つものである。第１止水リング３２はビット１８と調整パイプ２６の接続部に装着される。第２止水リング３４は調整パイプ２６に装着される。第１止水リング３２は、ビット１８の連結ネジ部２２側を貫通させる中心孔３６を有する。さらに、断熱材４４に向かう面に凹陥部４０を形成した弾性皿部３８と、この凹陥部４０に収容されて、断熱材４４の貫通孔４６周辺に密着する止水材４２とが設けられている。 Both the first water stop ring 32 of (f) and the second water stop ring 34 of (g) have the same function as the water stop device described in Patent Document 1. The first water stop ring 32 is attached to the connection portion between the bit 18 and the adjustment pipe 26. The second water stop ring 34 is attached to the adjustment pipe 26. The first water stop ring 32 has a central hole 36 that penetrates the connecting screw portion 22 side of the bit 18. Furthermore, an elastic dish portion 38 having a recessed portion 40 formed on the surface facing the heat insulating material 44 and a water stop material 42 accommodated in the recessed portion 40 and closely attached to the periphery of the through hole 46 of the heat insulating material 44 are provided. Yes.

弾性皿部３８は弾力のある加硫ゴム等により構成される。圧力により凹陥部４０に収容した止水材４２が押し出されることを期待するため、弾性皿部３８は圧力により変形可能な弾性体であることが好ましい。また、止水材４２は、特許文献１に記載されたように、常温で粘着性を有し加圧すると流動する特性を持つゴムまたはプラスチック材料が好ましい。特に、コンクリートと親和性が良く、長期間特性を維持できる非加硫ブチルゴム等を使用することが好ましい。 The elastic dish portion 38 is made of elastic vulcanized rubber or the like. In order to expect that the water stop material 42 accommodated in the recessed portion 40 is pushed out by pressure, the elastic dish portion 38 is preferably an elastic body that can be deformed by pressure. Further, as described in Patent Document 1, the water-stopping material 42 is preferably a rubber or plastic material that has adhesiveness at room temperature and flows when pressed. In particular, it is preferable to use non-vulcanized butyl rubber or the like that has good affinity with concrete and can maintain long-term characteristics.

第２止水リング３４も第１止水リング３２と同様に、凹陥部５６を有する弾性皿部５４と中心孔５２を備えている。第２止水リング３４と第１止水リング３２とは同一の構造でも構わないが、後で説明するように、防水シート４８に押しつけられて止水効果を発揮させるため、実施例では第１止水リング３２よりも大径のものにした。また、型枠に流し込まれたコンクリートの圧力を全面に受けるため、弾性皿部５４には、全体として厚みのある変形可能な弾性体を使用した。 Similar to the first water stop ring 32, the second water stop ring 34 includes an elastic dish portion 54 having a recessed portion 56 and a center hole 52. Although the 2nd water stop ring 34 and the 1st water stop ring 32 may be the same structures, in order to demonstrate the water stop effect by being pressed against waterproofing sheet 48 so that it may explain later, in an example, it is the 1st. The diameter is larger than that of the water stop ring 32. Further, in order to receive the pressure of the concrete poured into the mold on the entire surface, the elastic plate 54 is made of a deformable elastic body having a thickness as a whole.

以上の部品を使用して、壁体１２に固定したビット１８に調整パイプ２６を連結し、断熱材４４と防水シート４８を貫通した調整パイプ２６の他端側で、後で説明するコンクリート型枠６０を支持し、防水シート４８とコンクリート型枠６０との間にコンクリート壁６２を形成する。 Using the above components, the adjustment pipe 26 is connected to the bit 18 fixed to the wall 12, and the concrete formwork described later is provided on the other end side of the adjustment pipe 26 that penetrates the heat insulating material 44 and the waterproof sheet 48. The concrete wall 62 is formed between the waterproof sheet 48 and the concrete mold 60.

図２〜図１０は、本発明の工法を順を追って図示した主要部縦断面図である。
図２に示すように、始めに、ビット１８のタッピングネジ部２０を鋼材１４のタッピンク穴１６にタップを立てるようにしてねじこむ。次に、第１止水リング３２の弾性皿部３８に設けた中心孔３６に、ビット１８の連結ネジ部２２を通して装着する。このとき、止水材４２が連結ネジ部２２の外周面に十分な量だけ付着するように、第１止水リング３２を中心孔３６を中心に回転させながら装着する。図２（ｂ）には、第１止水リング３２の斜視図を示した。 2 to 10 are longitudinal sectional views of main parts illustrating the construction method of the present invention in order.
As shown in FIG. 2, first, the tapping screw portion 20 of the bit 18 is screwed so that the tapping hole 16 of the steel material 14 is tapped. Next, the bit 18 is attached to the center hole 36 provided in the elastic plate portion 38 of the first water stop ring 32 through the connecting screw portion 22. At this time, the first water stop ring 32 is mounted while rotating around the center hole 36 so that the water stop material 42 adheres to the outer peripheral surface of the connecting screw portion 22 by a sufficient amount. FIG. 2B shows a perspective view of the first water stop ring 32.

上記の作業の後、図３に示すように、ビット１８の連結ネジ部２２に調整パイプ２６のビット連結部２８を装着する。調整パイプ２６を矢印Ａの方向に回転させていくと、ねじの締め込みに伴って、図４に示すように、第１止水リング３２をビット１８の工具掛け部２４に押しつけて、ビット１８の弾性皿部３８の凹陥部４０から止水材４２を溢れさすように作用する。このとき、ビット１８の連結ネジ部２２と調整パイプ２６のビット連結部２８との間に止水材４２が詰め込まれるため、この間の漏水が阻止される。 After the above operation, as shown in FIG. 3, the bit connecting portion 28 of the adjusting pipe 26 is attached to the connecting screw portion 22 of the bit 18. When the adjustment pipe 26 is rotated in the direction of arrow A, the first water stop ring 32 is pressed against the tool hook 24 of the bit 18 as shown in FIG. The water stop material 42 overflows from the recessed portion 40 of the elastic dish portion 38. At this time, since the water blocking material 42 is packed between the connecting screw portion 22 of the bit 18 and the bit connecting portion 28 of the adjusting pipe 26, water leakage during this time is prevented.

次に、図５に示すように、壁体１２の鋼材１４からその面に垂直に立ち上がるように取り付けられた多数の調整パイプ２６に、断熱材４４を当てがう。この段階で、全ての調整パイプ２６が並行に直立しているはずである。もし向きの傾いている調整パイプ２６があれば、ハンマーで叩いて向きを調整する。その後、図５に示した状態で、断熱材４４に壁体１２に向かう方向（矢印Ｂの方向）の圧力を加える。 Next, as shown in FIG. 5, a heat insulating material 44 is applied to a large number of adjusting pipes 26 that are attached so as to rise vertically from the steel material 14 of the wall 12 to the surface thereof. At this stage, all adjustment pipes 26 should be upright in parallel. If there is an adjustment pipe 26 having an inclined direction, the direction is adjusted by hitting it with a hammer. Thereafter, in the state shown in FIG. 5, pressure in the direction toward the wall body 12 (direction of arrow B) is applied to the heat insulating material 44.

これにより、調整パイプ２６の型枠支持材連結部３０が断熱材４４を突き破り、断熱材４４に貫通孔４６が形成される。断熱材４４が発泡プラスチック等の強度が弱い材料の場合には、同時に複数の貫通孔４６を設けることができる。調整パイプ２６の型枠支持材連結部３０を突き当てて、断熱材４４に孔開け位置を示す印を付けた後に、ドリル等で貫通孔４６を形成しても構わない。 Thereby, the formwork support member connecting portion 30 of the adjustment pipe 26 breaks through the heat insulating material 44, and a through hole 46 is formed in the heat insulating material 44. In the case where the heat insulating material 44 is a weak material such as foamed plastic, a plurality of through holes 46 can be provided simultaneously. The through hole 46 may be formed with a drill or the like after the formwork support member connecting portion 30 of the adjustment pipe 26 is abutted and the heat insulating material 44 is marked to indicate the drilling position.

例えば、断熱材４４として適する発泡ウレタンは、厚みが３０ｍｍ〜１００ｍｍ、縦２ｍ横１ｍ程のものである。この広さで、太さが１０ｍｍほどの調整パイプ２６を例えば、６本〜９本直立させる。従って、上記の作業により１枚の断熱材４４に６〜９個の貫通孔４６を設ける。 For example, the urethane foam suitable as the heat insulating material 44 has a thickness of 30 mm to 100 mm, a length of 2 m and a width of about 1 m. For example, 6 to 9 adjustment pipes 26 having a thickness of about 10 mm are erected. Therefore, 6 to 9 through holes 46 are provided in one heat insulating material 44 by the above-described operation.

ビット１８を鋼材１４に取り付ける位置の精度はあまり高くすることできないので、こうした工法が適する。しかし、断熱材４４の代わりに強度のある板材を使用するような場合には、別の柔らかい材料を用いて、これに孔開け位置を示す印を付けた後に、板材と重ねてドリル等で貫通孔４６を形成しても構わない。 Since the accuracy of the position where the bit 18 is attached to the steel material 14 cannot be made very high, such a construction method is suitable. However, when a strong plate material is used instead of the heat insulating material 44, another soft material is used, and a mark indicating the drilling position is put on the plate material, and then the plate material is overlapped with a drill or the like. The hole 46 may be formed.

図６に示すように、断熱材４４に調整パイプ２６を貫通させると、第１止水リング３２が、壁体１２と断熱材４４に押し潰されるように挟み込まれる。第１止水リング３２の弾性皿部３８の凹陥部４０から押し出された止水材４２は、貫通孔４６の周囲の断熱材４４の表面に密着する。弾性皿部３８は、止水材４２が外側に押し出されるのを阻止している。従って、止水材４２は、調整パイプ２６と断熱材４４の貫通孔４６との間隙に流れ込む。その結果、ビット１８に近い部分で、断熱材４４の表面に沿って貫通孔４６の方向への漏水が阻止される。 As shown in FIG. 6, when the adjustment pipe 26 is passed through the heat insulating material 44, the first water stop ring 32 is sandwiched between the wall body 12 and the heat insulating material 44. The water blocking material 42 pushed out from the recessed portion 40 of the elastic dish portion 38 of the first water blocking ring 32 is in close contact with the surface of the heat insulating material 44 around the through hole 46. The elastic dish portion 38 prevents the water blocking material 42 from being pushed outward. Therefore, the water blocking material 42 flows into the gap between the adjustment pipe 26 and the through hole 46 of the heat insulating material 44. As a result, water leakage in the direction of the through hole 46 along the surface of the heat insulating material 44 is prevented at a portion close to the bit 18.

図７に示すように、防水シート４８に透孔５０を形成する場合には、壁体１２の一面全体に直立させた調整パイプ２６を覆うように防水シート４８を配置する。そして、防水シート４８に触れながら、調整パイプ２６の型枠支持材連結部３０の位置を確かめて、その部分をハンマーで叩く。これにより防水シート４８が破れて調整パイプ２６を貫通させる透孔５０を形成できる。 As shown in FIG. 7, when the through hole 50 is formed in the waterproof sheet 48, the waterproof sheet 48 is disposed so as to cover the adjustment pipe 26 that is upright on the entire surface of the wall body 12. Then, while touching the waterproof sheet 48, the position of the formwork support connecting portion 30 of the adjustment pipe 26 is confirmed, and that portion is hit with a hammer. Thereby, the waterproof sheet 48 is torn and the through hole 50 through which the adjustment pipe 26 penetrates can be formed.

図７に示すように、防水シート４８の透孔５０から突き出た調整パイプ２６には、第２止水リング３４が装着される。即ち、第２止水リング３４の中心孔５２に、調整パイプ２６を貫通させる。弾性皿部５４の凹陥部５６は、防水シート４８に向かう面に形成されている。図９に示すように、弾性皿部５４に収容された止水材５８は、防水シート４８の透孔５０の周辺に密着した状態にされる。この状態では、止水材５８の粘着力で、第２止水リング３４が調整パイプ２６上の図の位置に固定される。 As shown in FIG. 7, the second water stop ring 34 is attached to the adjustment pipe 26 protruding from the through hole 50 of the waterproof sheet 48. That is, the adjustment pipe 26 is passed through the center hole 52 of the second water stop ring 34. The recessed portion 56 of the elastic dish portion 54 is formed on the surface facing the waterproof sheet 48. As shown in FIG. 9, the water blocking material 58 accommodated in the elastic dish portion 54 is brought into close contact with the periphery of the through hole 50 of the waterproof sheet 48. In this state, the second water stop ring 34 is fixed to the position shown in the drawing on the adjustment pipe 26 by the adhesive force of the water stop material 58.

その後、図１０に示すように、調整パイプ２６の延長線上に型枠支持材６４を介して型枠６０を固定し、コンクリート６２を流しこむ。コンクリート６２の厚みは、例えば、３０ｃｍ〜１．５ｍというようにまちまちである。いずれの場合でも、流し込まれたコンクリートの重量で、第２止水リング３４が防水シート４８に押しつけられる。 Thereafter, as shown in FIG. 10, the mold 60 is fixed on the extension line of the adjustment pipe 26 via the mold support 64 and the concrete 62 is poured. The thickness of the concrete 62 varies, for example, from 30 cm to 1.5 m. In any case, the second water stop ring 34 is pressed against the waterproof sheet 48 with the weight of the poured concrete.

第２止水リング３４が、防水シート４８とコンクリート壁６２に挟み込まれて押し潰されると、弾性皿部５４の凹陥部５６から押し出された止水材５８が、防水シート４８の透孔５０の周辺と、この透孔５０に近い調整パイプ２６と断熱材４４の貫通孔４６との間隙に流れ込む。これにより、この間隙の漏水を阻止することができる。また、断熱材４４の貫通孔４６の両端を第１止水リング３２と第２止水リング３４とが挟み込んでいるので、止水材が溢れて他の場所に逃げてしまうのを防止できる。 When the second water stop ring 34 is sandwiched and crushed between the waterproof sheet 48 and the concrete wall 62, the water stop material 58 pushed out from the recessed portion 56 of the elastic dish portion 54 is inserted into the through hole 50 of the waterproof sheet 48. It flows into the gap between the periphery and the adjustment pipe 26 close to the through hole 50 and the through hole 46 of the heat insulating material 44. As a result, water leakage in the gap can be prevented. Moreover, since the 1st water stop ring 32 and the 2nd water stop ring 34 have pinched | interposed the both ends of the through-hole 46 of the heat insulating material 44, it can prevent that a water stop material overflows and escapes to another place.

図１１は、実施例２のの壁面防水工法を説明する主要部縦断面図である。
図１０の実施例では、鋼材１４と断熱材４４の間に第１止水リング３２を挟み、防水シート４８とコンクリート壁６２の間に第２止水リング３４を挟む例を説明をした。しかしながら、図１に示した第１止水リング３２と第２止水リング３４は、それぞれその形状と用い方の選択によって、格別の効果を奏する。以下、その例を説明する。 FIG. 11 is a longitudinal sectional view of a main part for explaining the wall waterproofing method according to the second embodiment.
In the embodiment of FIG. 10, the example in which the first water stop ring 32 is sandwiched between the steel material 14 and the heat insulating material 44 and the second water stop ring 34 is sandwiched between the waterproof sheet 48 and the concrete wall 62 has been described. However, the 1st water stop ring 32 and the 2nd water stop ring 34 which were shown in FIG. 1 have a special effect by the selection of the shape and usage, respectively. Examples thereof will be described below.

まず、第１止水リング３２は、図１（ｆ）に示すように、凹陥部４０が中心孔３６に近づくほど深く中心孔３６に近い部分に周縁部に比べて多量の止水材５８が収容されている。図１０の例では、第１止水リング３２の中心孔３６の内径は、ビット１８の連結ネジ部２２の外径とほぼ一致し、工具掛け部２４の外径よりも小さい。従って、ビット１８の工具掛け部２４と調整パイプ２６のビット連結部２８とで、第１止水リング３２の中心付近を挟んでいる。 First, as shown in FIG. 1 (f), the first water stop ring 32 has a larger amount of the water stop material 58 in the portion closer to the center hole 36 as compared with the peripheral portion as the recessed portion 40 approaches the center hole 36. Contained. In the example of FIG. 10, the inner diameter of the center hole 36 of the first water stop ring 32 substantially coincides with the outer diameter of the connection screw portion 22 of the bit 18 and is smaller than the outer diameter of the tool hook portion 24. Accordingly, the tool hooking portion 24 of the bit 18 and the bit connecting portion 28 of the adjusting pipe 26 sandwich the vicinity of the center of the first water stop ring 32.

図１０から明らかなように、第１止水リング３２はビット１８の工具掛け部２４の部分で大きく変形している。その結果、第１止水リング３２の凹陥部４０に収容された止水材５８の大部分が押し出されて、ビット１８と調整パイプ２６の間や貫通孔４６に流れ込む。従って、隙間が比較的大きい場合でも、貫通孔４６の内部全体を確実に止水することができる。 As apparent from FIG. 10, the first water stop ring 32 is greatly deformed at the portion of the tool hook 24 of the bit 18. As a result, most of the water blocking material 58 accommodated in the recessed portion 40 of the first water blocking ring 32 is pushed out and flows between the bit 18 and the adjustment pipe 26 and into the through hole 46. Therefore, even when the gap is relatively large, the entire inside of the through hole 46 can be reliably stopped.

一方、第２止水リング３４は凹陥部５６の深さがどの部分もほぼ一定である。従って、全体として平均に圧力を受けて潰される。これにより、第２止水リング３４とともに、止水材５８を対向面に強力に押しつけることができる。図１０から明らかなように、第２止水リング３４はその周縁部を防水シート４８に押しつけて、貫通孔４６の周囲の止水効果を高めている。 On the other hand, as for the 2nd water stop ring 34, the depth of the recessed part 56 is almost constant in any part. Therefore, it is crushed by receiving an average pressure as a whole. Thereby, the water stop material 58 can be strongly pressed against the opposing surface together with the second water stop ring 34. As apparent from FIG. 10, the second water stop ring 34 presses the peripheral edge portion against the waterproof sheet 48 to enhance the water stop effect around the through hole 46.

一方、図１１に示した実施例では、鋼材１４と断熱材４４の間に第２止水リング３４を挟みこむ構造にした。この第２止水リング３４の中心孔５２の内径は、ビット１８の工具掛け部２４の外径に近い値に設定した。従って、図１１に示すように、第２止水リング３４は全体を隙間無く鋼材１４に接触させ、第２止水リング３４の周縁部だけに断熱材４４の圧力が垂直に加わる。これにより、第２止水リング３４の周縁部が押し潰されて、止水材５８が断熱材４４の貫通孔４６に強く圧入される。この実施例の場合には、圧入する止水材５８の量に対応するように、第２止水リング３４の凹陥部５６の深さを選択すればよい。 On the other hand, in the embodiment shown in FIG. 11, the second water stop ring 34 is sandwiched between the steel material 14 and the heat insulating material 44. The inner diameter of the center hole 52 of the second water stop ring 34 was set to a value close to the outer diameter of the tool hook portion 24 of the bit 18. Therefore, as shown in FIG. 11, the second water stop ring 34 is entirely brought into contact with the steel material 14 without a gap, and the pressure of the heat insulating material 44 is applied vertically only to the peripheral portion of the second water stop ring 34. As a result, the peripheral edge portion of the second water stop ring 34 is crushed and the water stop material 58 is strongly pressed into the through hole 46 of the heat insulating material 44. In the case of this embodiment, the depth of the recessed portion 56 of the second water stop ring 34 may be selected so as to correspond to the amount of the water stop material 58 to be press-fitted.

図１２は、第１止水リング３２と第２止水リング３４の変形の程度を示す縦断面図である。
図の（ａ）に示すように、第１止水リング３２は圧力を受けると、（ｂ）に示すように、肉厚の薄い中心孔３６に近い部分が押し潰されて、中心孔３６とその周辺の止水材４２が押し出される。一方、（ｃ）に示した第２止水リング３４は、中心孔５２の軸に対して垂直な壁を構成する部分の肉厚Ｔ１を、中心孔５２の軸に対して平行な壁を構成する部分の肉厚Ｔ２よりも大きくしているので、（ｄ）に示すように、肉厚Ｔ２の部分が平均に潰れやすい。 FIG. 12 is a longitudinal sectional view showing the degree of deformation of the first water stop ring 32 and the second water stop ring 34.
As shown in (a) of the figure, when the first water stop ring 32 is subjected to pressure, as shown in (b), a portion near the thin central hole 36 is crushed, and the central hole 36 and The water blocking material 42 around the area is pushed out. On the other hand, the second water stop ring 34 shown in (c) forms the wall thickness T1 of the portion constituting the wall perpendicular to the axis of the center hole 52 and the wall parallel to the axis of the center hole 52 Since the thickness T2 is larger than the thickness T2 of the portion to be processed, the portion of the thickness T2 is easily crushed on average as shown in (d).

以上のことから、第１止水リング３２を鋼材１４と断熱材４４の間に挟む場合も、第２止水リング３４を鋼材１４と断熱材４４の間に挟む場合も、それぞれ固有の格別の効果を得ることができる。また、第１止水リング３２を防水シート４８とコンクリート壁６２の間に挟む場合と、第２止水リング３４を防水シート４８とコンクリート壁６２の間に挟む場合も、それぞれ固有の格別の効果を得ることができる。 From the above, the case where the first water stop ring 32 is sandwiched between the steel material 14 and the heat insulating material 44 and the case where the second water stop ring 34 is sandwiched between the steel material 14 and the heat insulating material 44 are each of particular special cases. An effect can be obtained. In addition, when the first water stop ring 32 is sandwiched between the waterproof sheet 48 and the concrete wall 62 and when the second water stop ring 34 is sandwiched between the waterproof sheet 48 and the concrete wall 62, the specific special effects are also provided. Can be obtained.

１防水壁
２壁体
３鋼材
４タッピンク穴
５ビット
６タッピングネジ部
７連結ネジ部
８工具掛け部
９調整パイプ
１０ビット連結部
１１型枠支持材連結部
１２第１止水リング
１３第２止水リング
１４中心孔
１５弾性皿部
１６凹陥部
１７止水材
１８断熱材
１９貫通孔
２０防水シート
２１透孔
２２中心孔
２３弾性皿部
２４凹陥部
２５止水材
２６コンクリート型枠
２７コンクリート壁
２８型枠支持材 DESCRIPTION OF SYMBOLS 1 Waterproof wall 2 Wall body 3 Steel material 4 Tapper hole 5 Bit 6 Tapping screw part 7 Connection screw part 8 Tool hook part 9 Adjustment pipe 10 Bit connection part 11 Formwork support material connection part 12 1st water stop ring 13 2nd water stop Ring 14 Center hole 15 Elastic dish part 16 Recessed part 17 Water stop material 18 Heat insulating material 19 Through hole 20 Waterproof sheet 21 Through hole 22 Central hole 23 Elastic dish part 24 Recessed part 25 Water stop material 26 Concrete formwork 27 Concrete wall 28 Type Frame support material

Claims

壁体１２に断熱材４４と防水シート４８とを順に重ねて固定し、壁体１２に固定したビット１８の連結ネジ部２２にビット連結部２８を固定し前記断熱材４４と防水シート４８を貫通した調整パイプ２６の他端側でコンクリート型枠６０を支持し、前記防水シート４８とコンクリート型枠６０との間にコンクリート壁６２を形成する工法であって、
前記断熱材４４には前記調整パイプ２６を貫通させる貫通孔４６が設けられ、前記ビット１８には、第１止水リング３２が装着され、この第１止水リング３２には、前記ビット１８の連結ネジ部２２側を貫通させる中心孔３６と、前記断熱材４４に向かう面に凹陥部４０を形成した弾性皿部３８と、この凹陥部４０に収容されて、前記断熱材４４の貫通孔４６周辺に密着する止水材４２とが設けられ、
前記第１止水リング３２を、前記壁体１２と前記断熱材４４に押し潰されるように挟み込み、前記弾性皿部３８の凹陥部４０から押し出された前記止水材４２を、前記ビット１８に近い前記調整パイプ２６と前記断熱材４４の貫通孔４６との間隙に流れ込ませ、
前記防水シート４８の透孔５０から突き出た調整パイプ２６には、第２止水リング３４が装着され、この第２止水リング３４には、前記調整パイプ２６を貫通させる中心孔５２と、前記防水シート４８に向かう面に凹陥部５６を形成した弾性皿部５４と、この弾性皿部５４に収容されて、前記防水シート４８の透孔５０周辺に密着する止水材５８とが設けられ、
前記第２止水リング３４を、前記防水シート４８と前記コンクリート壁６２に押し潰されるように挟み込み、前記弾性皿部５４の凹陥部５６から押し出された前記止水材５８を、前記防水シート４８の透孔５０の周辺と、この透孔５０に近い前記調整パイプ２６と前記断熱材４４の貫通孔４６との間隙に流れ込ませることを特徴とする壁面防水工法。 A heat insulating material 44 and a waterproof sheet 48 are overlapped and fixed to the wall body 12 in this order, and the bit connecting portion 28 is fixed to the connecting screw portion 22 of the bit 18 fixed to the wall body 12 to penetrate the heat insulating material 44 and the waterproof sheet 48. The concrete pipe 60 is supported at the other end of the prepared adjustment pipe 26, and a concrete wall 62 is formed between the waterproof sheet 48 and the concrete mold 60,
The heat insulating material 44 is provided with a through hole 46 through which the adjustment pipe 26 passes. The bit 18 is provided with a first water stop ring 32, and the first water stop ring 32 is provided with the bit 18. A central hole 36 penetrating the connecting screw portion 22 side, an elastic dish portion 38 having a recessed portion 40 formed on a surface facing the heat insulating material 44, and a through hole 46 of the heat insulating material 44 accommodated in the recessed portion 40. A water-stopping material 42 closely attached to the periphery,
The first water stop ring 32 is sandwiched so as to be crushed by the wall body 12 and the heat insulating material 44, and the water stop material 42 pushed out from the recessed portion 40 of the elastic dish portion 38 is attached to the bit 18. Flow into the gap between the adjustment pipe 26 and the through hole 46 of the heat insulating material 44,
A second water stop ring 34 is attached to the adjustment pipe 26 protruding from the through hole 50 of the waterproof sheet 48, and the second water stop ring 34 has a center hole 52 through which the adjustment pipe 26 passes, An elastic dish portion 54 having a recessed portion 56 formed on the surface facing the waterproof sheet 48, and a water stop material 58 accommodated in the elastic dish portion 54 and closely attached to the periphery of the through hole 50 of the waterproof sheet 48,
The second water stop ring 34 is sandwiched between the waterproof sheet 48 and the concrete wall 62 so as to be crushed, and the water stop material 58 pushed out from the recessed portion 56 of the elastic dish portion 54 is inserted into the waterproof sheet 48. The wall waterproofing method is characterized in that it is caused to flow into the gap between the adjustment pipe 26 near the through hole 50 and the through hole 46 of the heat insulating material 44.

壁体１２に断熱材４４と防水シート４８とを順に重ねて固定し、壁体１２に固定したビット１８の連結ネジ部２２にビット連結部２８を固定し前記断熱材４４と防水シート４８を貫通した調整パイプ２６の他端側で支持したコンクリート型枠６０と前記防水シート４８との間に形成したコンクリート壁６２を有する壁であって、
前記断熱材４４には前記調整パイプ２６を貫通させる貫通孔４６が設けられ、前記ビット１８には、第１止水リング３２が装着され、この第１止水リング３２には、前記ビット１８の連結ネジ部２２側を貫通させる中心孔３６と、前記断熱材４４に向かう面に凹陥部４０を形成した弾性皿部３８と、この凹陥部４０に収容されて、前記断熱材４４の貫通孔４６周辺に密着する止水材４２とが設けられ、
前記第１止水リング３２は、前記壁体１２と前記断熱材４４に押し潰されるように挟み込まれ、前記弾性皿部３８の凹陥部４０から押し出された前記止水材４２が、前記ビット１８に近い前記調整パイプ２６と前記断熱材４４の貫通孔４６との間隙に流れ込んだ状態にあり、
前記防水シート４８の透孔５０から突き出た調整パイプ２６には、第２止水リング３４が装着され、この第２止水リング３４には、前記調整パイプ２６を貫通させる中心孔５２と、前記防水シート４８に向かう面に凹陥部５６を形成した弾性皿部５４と、この弾性皿部５４に収容されて、前記防水シート４８の透孔５０周辺に密着する止水材５８とが設けられ、
前記第２止水リング３４は、前記防水シート４８と前記コンクリート壁６２に押し潰されるように挟み込まれ、前記弾性皿部５４の凹陥部５６から押し出された前記止水材５８が、前記防水シート４８の透孔５０の周辺と、この透孔５０に近い前記調整パイプ２６と前記断熱材４４の貫通孔４６との間隙に流れ込んだ状態にあることを特徴とする防水壁。 A heat insulating material 44 and a waterproof sheet 48 are overlapped and fixed to the wall body 12 in this order, and the bit connecting portion 28 is fixed to the connecting screw portion 22 of the bit 18 fixed to the wall body 12 to penetrate the heat insulating material 44 and the waterproof sheet 48. A wall having a concrete wall 62 formed between the concrete form 60 supported on the other end of the prepared adjustment pipe 26 and the waterproof sheet 48,
The heat insulating material 44 is provided with a through hole 46 through which the adjustment pipe 26 passes. The bit 18 is provided with a first water stop ring 32, and the first water stop ring 32 is provided with the bit 18. A central hole 36 penetrating the connecting screw portion 22 side, an elastic dish portion 38 having a recessed portion 40 formed on a surface facing the heat insulating material 44, and a through hole 46 of the heat insulating material 44 accommodated in the recessed portion 40. A water-stopping material 42 closely attached to the periphery,
The first water stop ring 32 is sandwiched between the wall body 12 and the heat insulating material 44 so as to be crushed, and the water stop material 42 pushed out from the recessed portion 40 of the elastic dish portion 38 is connected to the bit 18. Near the adjustment pipe 26 and the through hole 46 of the heat insulating material 44,
A second water stop ring 34 is attached to the adjustment pipe 26 protruding from the through hole 50 of the waterproof sheet 48, and the second water stop ring 34 has a center hole 52 through which the adjustment pipe 26 passes, An elastic dish portion 54 having a recessed portion 56 formed on the surface facing the waterproof sheet 48, and a water stop material 58 accommodated in the elastic dish portion 54 and closely attached to the periphery of the through hole 50 of the waterproof sheet 48,
The second water stop ring 34 is sandwiched between the waterproof sheet 48 and the concrete wall 62 so as to be crushed, and the water stop material 58 pushed out from the recessed portion 56 of the elastic dish part 54 includes the waterproof sheet. 48. A waterproofing wall, wherein the waterproof wall is in a state of flowing into a gap between a through hole 50 of the adjustment pipe 26 and the through hole 46 of the heat insulating material 44 close to the through hole 50 of the 48.

壁体１２に板材と防水シート４８とを順に重ねて固定し、壁体１２に固定したビット１８の連結ネジ部２２にビット連結部２８を固定し前記板材４４と防水シート４８を貫通した調整パイプ２６の他端側でコンクリート型枠６０を支持し、前記防水シート４８とコンクリート型枠６０との間にコンクリート壁６２を形成する工法であって、
前記板材４４には前記調整パイプ２６を貫通させる貫通孔４６が設けられ、前記ビット１８には、第１止水リング３２が装着され、この第１止水リング３２には、前記ビット１８の連結ネジ部２２側を貫通させる中心孔３６と、前記断熱材４４に向かう面に凹陥部４０を形成した弾性皿部３８と、この凹陥部４０に収容されて、前記断熱材４４の貫通孔４６周辺に密着する止水材４２とが設けられ、
前記第１止水リング３２を、前記壁体１２と前記板材４４に押し潰されるように挟み込み、前記弾性皿部３８の凹陥部４０から押し出された前記止水材４２を、前記板材の貫通孔４６周辺に密着させ、
前記防水シート４８の透孔５０から突き出た調整パイプ２６には、第２止水リング３４が装着され、この第２止水リング３４には、前記調整パイプ２６を貫通させる中心孔５２と、前記防水シート４８に向かう面に凹陥部５６を形成した弾性皿部５４と、この弾性皿部５４に収容されて、前記防水シート４８の透孔５０周辺に密着する止水材５８とが設けられ、
前記第２止水リング３４を、前記防水シート４８と前記コンクリート壁６２に押し潰されるように挟み込み、前記弾性皿部５４の凹陥部５６から押し出された前記止水材５８を、前記防水シート４８の透孔５０の周辺に密着させることを特徴とする壁面防水工法。 A plate and a waterproof sheet 48 are sequentially stacked and fixed on the wall body 12, and a bit connecting portion 28 is fixed to a connection screw portion 22 of the bit 18 fixed to the wall body 12, and an adjustment pipe penetrating the plate material 44 and the waterproof sheet 48. 26, which supports the concrete mold 60 on the other end side, and forms a concrete wall 62 between the waterproof sheet 48 and the concrete mold 60,
The plate member 44 is provided with a through hole 46 through which the adjustment pipe 26 passes. The bit 18 is provided with a first water stop ring 32. The first water stop ring 32 is connected to the bit 18. A central hole 36 penetrating the screw portion 22 side, an elastic dish portion 38 having a recessed portion 40 formed on the surface facing the heat insulating material 44, and the periphery of the through hole 46 of the heat insulating material 44 accommodated in the recessed portion 40 And a water stop material 42 closely attached to the
The first water stop ring 32 is sandwiched so as to be crushed by the wall body 12 and the plate member 44, and the water stop member 42 pushed out from the recessed portion 40 of the elastic dish portion 38 is inserted into the through hole of the plate member. 46, close to the periphery,
A second water stop ring 34 is attached to the adjustment pipe 26 protruding from the through hole 50 of the waterproof sheet 48, and the second water stop ring 34 has a center hole 52 through which the adjustment pipe 26 passes, An elastic dish portion 54 having a recessed portion 56 formed on the surface facing the waterproof sheet 48, and a water stop material 58 accommodated in the elastic dish portion 54 and closely attached to the periphery of the through hole 50 of the waterproof sheet 48,
The second water stop ring 34 is sandwiched between the waterproof sheet 48 and the concrete wall 62 so as to be crushed, and the water stop material 58 pushed out from the recessed portion 56 of the elastic dish portion 54 is inserted into the waterproof sheet 48. A wall waterproofing method characterized in that it is brought into close contact with the periphery of the through hole 50 of the wall.

壁体１２に板材と防水シート４８とを順に重ねて固定し、壁体１２に固定したビット１８の連結ネジ部２２にビット連結部２８を固定し前記板材４４と防水シート４８を貫通した調整パイプ２６の他端側でコンクリート型枠６０を支持し、前記防水シート４８とコンクリート型枠６０との間にコンクリート壁６２を形成した壁であって、
前記板材４４には前記調整パイプ２６を貫通させる貫通孔４６が設けられ、前記ビット１８には、第１止水リング３２が装着され、この第１止水リング３２には、前記ビット１８の連結ネジ部２２側を貫通させる中心孔３６と、前記断熱材４４に向かう面に凹陥部４０を形成した弾性皿部３８と、この凹陥部４０に収容されて、前記断熱材４４の貫通孔４６周辺に密着する止水材４２とが設けられ、
前記第１止水リング３２は、前記壁体１２と前記板材４４に押し潰されるように挟み込まれ、前記弾性皿部３８の凹陥部４０から押し出された前記止水材４２が、前記板材の貫通孔４６周辺に密着しており、
前記防水シート４８の透孔５０から突き出た調整パイプ２６には、第２止水リング３４が装着され、この第２止水リング３４には、前記調整パイプ２６を貫通させる中心孔５２と、前記防水シート４８に向かう面に凹陥部５６を形成した弾性皿部５４と、この弾性皿部５４に収容されて、前記防水シート４８の透孔５０周辺に密着する止水材５８とが設けられ、
前記第２止水リング３４は、前記防水シート４８と前記コンクリート壁６２に押し潰されるように挟み込まれ、前記弾性皿部５４の凹陥部５６から押し出された前記止水材５８が、前記防水シート４８の透孔５０の周辺に密着していることを特徴とする防水壁。 A plate and a waterproof sheet 48 are sequentially stacked and fixed on the wall body 12, and a bit connecting portion 28 is fixed to a connection screw portion 22 of the bit 18 fixed to the wall body 12, and an adjustment pipe penetrating the plate material 44 and the waterproof sheet 48. 26 is a wall that supports a concrete formwork 60 on the other end side thereof and forms a concrete wall 62 between the waterproof sheet 48 and the concrete formwork 60,
The plate member 44 is provided with a through hole 46 through which the adjustment pipe 26 passes. The bit 18 is provided with a first water stop ring 32. The first water stop ring 32 is connected to the bit 18. A central hole 36 penetrating the screw portion 22 side, an elastic dish portion 38 having a recessed portion 40 formed on the surface facing the heat insulating material 44, and the periphery of the through hole 46 of the heat insulating material 44 accommodated in the recessed portion 40 And a water stop material 42 closely attached to the
The first water stop ring 32 is sandwiched between the wall body 12 and the plate member 44 so that the water stop member 42 pushed out from the recessed portion 40 of the elastic dish portion 38 penetrates the plate member. It is closely attached around the hole 46,
A second water stop ring 34 is attached to the adjustment pipe 26 protruding from the through hole 50 of the waterproof sheet 48, and the second water stop ring 34 has a center hole 52 through which the adjustment pipe 26 passes, An elastic dish portion 54 having a recessed portion 56 formed on the surface facing the waterproof sheet 48, and a water stop material 58 accommodated in the elastic dish portion 54 and closely attached to the periphery of the through hole 50 of the waterproof sheet 48,
The second water stop ring 34 is sandwiched between the waterproof sheet 48 and the concrete wall 62 so as to be crushed, and the water stop material 58 pushed out from the recessed portion 56 of the elastic dish part 54 includes the waterproof sheet. A waterproof wall characterized by being in close contact with the periphery of 48 through holes 50.

請求項２または４に記載の防水壁において、
第１止水リング３２は、凹陥部４０が中心孔３６に近づくほど深く中心孔３６に近い部分に周縁部に比べて多量の止水材５８が収容された構造のものであって、肉厚の薄い中心孔３６に近い部分が押し潰された状態にされていることを特徴とする防水壁。 The waterproof wall according to claim 2 or 4,
The first water stop ring 32 has a structure in which a larger amount of the water stop material 58 is accommodated in a portion closer to the center hole 36 as compared with the peripheral portion as the recessed portion 40 approaches the center hole 36. waterproof walls, wherein a portion close to the thin central bore 36 of which is in a state of being crushed.

請求項２または４に記載の防水壁において、
第１止水リング３２は、凹陥部５６の深さがどの部分もほぼ一定で、中心孔５２の軸に対して垂直な壁を構成する部分の肉厚Ｔ１を、中心孔５２の軸に対して平行な壁を構成する部分の肉厚Ｔ２よりも大きくした構造のものであって、中心孔５２の内径は、ビット１８の工具掛け部２４の外径に近い値に設定されていることを特徴とする防水壁。 The waterproof wall according to claim 2 or 4,
In the first water stop ring 32 , the depth T of the recessed portion 56 is almost constant, and the thickness T 1 of the portion constituting the wall perpendicular to the axis of the center hole 52 is set to the axis of the center hole 52. It is of larger structures than the thickness T2 of the portion constituting the parallel walls Te, the inner diameter of the center hole 52, it is set to a value close to the outer diameter of the tool-engaging portion 24 of the bit 18 Waterproof wall featuring.

請求項２または４に記載の防水壁において、
第２止水リング３４は、凹陥部４０が中心孔３６に近づくほど深く中心孔３６に近い部分に周縁部に比べて多量の止水材５８が収容された構造のものであって、肉厚の薄い中心孔３６に近い部分が押し潰された状態にされていることを特徴とする防水壁。 The waterproof wall according to claim 2 or 4,
The second water stop ring 34 has a structure in which a larger amount of the water stop material 58 is accommodated in a portion closer to the center hole 36 as compared with the peripheral portion as the recessed portion 40 approaches the center hole 36. waterproof walls, wherein a portion close to the thin central bore 36 of which is in a state of being crushed.

請求項２または４に記載の防水壁において、
第２止水リング３４は、凹陥部５６の深さがどの部分もほぼ一定で、中心孔５２の軸に対して垂直な壁を構成する部分の肉厚Ｔ１を、中心孔５２の軸に対して平行な壁を構成する部分の肉厚Ｔ２よりも大きくした構造のものであることを特徴とする防水壁。 The waterproof wall according to claim 2 or 4,
In the second water stop ring 34, the depth T of the recessed portion 56 is almost constant, and the thickness T 1 of the portion constituting the wall perpendicular to the axis of the center hole 52 is set to the axis of the center hole 52. greater than the thickness T2 of the portion constituting the parallel walls Te and waterproof walls, characterized in der Rukoto a structure.