JP7166071B2 - Waterproof sheet laying device - Google Patents
Waterproof sheet laying device Download PDFInfo
- Publication number
- JP7166071B2 JP7166071B2 JP2018083024A JP2018083024A JP7166071B2 JP 7166071 B2 JP7166071 B2 JP 7166071B2 JP 2018083024 A JP2018083024 A JP 2018083024A JP 2018083024 A JP2018083024 A JP 2018083024A JP 7166071 B2 JP7166071 B2 JP 7166071B2
- Authority
- JP
- Japan
- Prior art keywords
- waterproof sheet
- outer frame
- sheet
- primary lining
- laying
- 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.)
- Active
Links
Images
Description
本発明は防水シート敷設装置及び防水シートの敷設方法に係り、特に防水シートに適切な弛みを確保することにより背面空洞の発生を防止できるとともに長スパンの防水シートを一度に敷設可能な防水シート敷設装置及び防水シートの敷設方法に係る。 TECHNICAL FIELD The present invention relates to a waterproof sheet laying apparatus and a waterproof sheet laying method, and in particular, a waterproof sheet laying method that can prevent the occurrence of back cavities by securing appropriate slack in the waterproof sheet and can lay a long-span waterproof sheet at once. The present invention relates to a device and a method of laying a waterproof sheet.
山岳トンネル工事では、トンネルの防水性を確保するため、一次覆工後のトンネル内壁に防水シートを敷設するシート防水工が標準化しつつある。
シート防水工には例えば特許文献１及び２に開示されるような留め片を備えた防水シートを使用する。
まず、ホイストクレーン等を用いて防水シートを複数段のステージを設けたシート台車上に展開する。続いて、防水シートの周方向の中心部をトンネルアーチ部の中央に合わせ、作業員が防水シートを一次覆工面に押し付けながら留め片越しにコンクリート釘を打ち込んで固定する。
前スパンの防水シートと後スパンの防水シートは、端部同士を拝み合わせた状態で熱溶着して接続する。
In mountain tunnel construction, in order to ensure the waterproofness of the tunnel, sheet waterproofing, which lays a waterproof sheet on the inner wall of the tunnel after the primary lining, is becoming standardized.
For the sheet waterproofer, a waterproof sheet with fastening pieces as disclosed in
First, a hoist crane or the like is used to deploy the waterproof sheet on a sheet carriage provided with a plurality of stages. Next, the circumferential center of the waterproof sheet is aligned with the center of the tunnel arch, and the worker presses the waterproof sheet against the primary lining surface and drives concrete nails through the retaining pieces to fix it.
The waterproof sheet of the front span and the waterproof sheet of the rear span are connected by thermal welding with their ends facing each other.
従来技術には以下の問題点がある。
＜１＞防水シートを一次覆工面に点状に固定してゆくため、展張した防水シートに適切な弛みを確保するのが難しい。防水シートの弛み量が不十分であると、覆工コンクリートの打設時に防水シートが下方に引き込まれることで、アーチ頂部において防水シートの背面に空洞が生じる。これはトンネル構造上の弱点となると共に、凍上によるひび割れや漏水を誘発するおそれがある。
＜２＞大面積の防水シートを一次覆工面に押さえながら釘打ちして固定するため、作業が困難で作業効率が悪い。
＜３＞施工難度が高いため、防水シートを一度に２ｍ幅程度しか敷設できない。このため防水シート同士の溶着頻度が高く、施工効率が悪い。
＜４＞施工スパンが短く、防水シートの溶着箇所が多いため、溶着箇所からの漏水リスクが高い。
＜５＞昨今の山岳トンネル工事では急速施工が求められており、これに応じて掘削や二次覆工などの各工程において施工の迅速化が進んでいるにもかかわらず、シート防水工がボトルネックとなって工事全体の迅速化を妨げている。
The prior art has the following problems.
<1> Since the waterproof sheet is fixed to the primary lining surface in points, it is difficult to secure appropriate slack in the stretched waterproof sheet. If the amount of slack in the waterproof sheet is insufficient, the waterproof sheet will be pulled downward when the lining concrete is placed, creating a void on the back surface of the waterproof sheet at the top of the arch. This is a weak point in the tunnel structure and may induce cracks and water leakage due to frost heave.
<2> Since the large-area waterproof sheet is fixed by nailing while pressing it against the primary lining surface, the work is difficult and work efficiency is poor.
<3> Due to the high degree of construction difficulty, the waterproof sheet can only be laid about 2m wide at one time. For this reason, the frequency of welding between waterproof sheets is high, and construction efficiency is poor.
<4> Since the construction span is short and there are many welded parts of the waterproof sheet, there is a high risk of water leakage from the welded parts.
<5> In recent mountain tunnel construction, rapid construction is required, and in response to this, construction speed is increasing in each process such as excavation and secondary lining. It becomes a bottleneck and hinders the speeding up of the entire construction.
本発明の目的は、以上のような従来技術の課題を解決可能な防水シート敷設装置及び防水シートの敷設方法を提供することにある。 SUMMARY OF THE INVENTION An object of the present invention is to provide a waterproof sheet laying apparatus and a waterproof sheet laying method that can solve the above-described problems of the prior art.
上記のような課題を解決するための本発明の防水シート敷設装置は、略半筒状の外枠を有する基台と、外枠上に長手方向に沿って並列配置した帯状の複数の膨張体と、膨張体内に送気して膨張させる送気手段と、を備え、膨張体の外側に防水シートを展開した状態で膨張体を膨張させることによって、防水シートを一次覆工面に押し付け可能であることを特徴とする。
この構成によれば、長スパンの防水シートを適切な弛み量で一括して敷設することができる。
The waterproof sheet laying apparatus of the present invention for solving the above-described problems is a base having a substantially semi-cylindrical outer frame, and a plurality of belt-like inflatable bodies arranged in parallel along the longitudinal direction on the outer frame. and air feeding means for feeding air into the inflatable body to inflate it, and by inflating the inflatable body with the waterproof sheet deployed outside the inflatable body, the waterproof sheet can be pressed against the primary lining surface. It is characterized by
According to this configuration, it is possible to lay a long-span waterproof sheet collectively with an appropriate amount of slack.
本発明の防水シート敷設装置は、複数の膨張体の外側を被覆する押圧シートを備えていてもよい。
この構成によれば、防水シートの展開が容易になると共に、膨張体による帯状の押し付けを面状に転換して防水シートの弛み量をより適正化することができる。
The waterproof sheet laying apparatus of the present invention may comprise a pressing sheet covering the outside of the plurality of inflatable bodies.
According to this configuration, the waterproof sheet can be easily deployed, and the band-like pressing force by the inflatable body can be converted into a planar shape to optimize the slack amount of the waterproof sheet.
本発明の防水シート敷設装置は、複数の膨張体を個別に膨張可能であってもよい。
この構成によれば、一次覆工面の状態に応じて膨張体の膨張高さを個別に操作することができる。
The waterproof sheet laying apparatus of the present invention may be capable of individually inflating a plurality of inflatable bodies.
According to this configuration, the expansion height of the expansion bodies can be individually controlled according to the state of the primary lining surface.
本発明の防水シートの敷設方法は、防水シートに付着可能な帯状の付着手段をトンネルの長手方向に沿って固定する工程と、外枠上に防水シートを展開する工程と、膨張体を膨張させて防水シートを一次覆工面上の付着手段に付着させる工程と、を備えることを特徴とする。
この構成によれば、この構成によれば、長スパンの防水シートを適切な弛み量で一括して敷設することができる。
The waterproof sheet laying method of the present invention includes the steps of fixing a band-shaped attachment means that can be attached to the waterproof sheet along the longitudinal direction of the tunnel, the steps of deploying the waterproof sheet on the outer frame, and the steps of inflating the inflatable body. and attaching the waterproof sheet to the attachment means on the primary lining surface.
According to this structure, according to this structure, a long-span waterproof sheet can be laid collectively with an appropriate amount of slack.
本発明の防水シートの敷設方法は、外枠頂部の膨張体から先に膨張させてもよい。
この構成によれば、防水シートのセンター位置のずれを防ぐことができる。
In the waterproof sheet laying method of the present invention, the inflatable body at the top of the outer frame may be inflated first.
With this configuration, it is possible to prevent the center position of the waterproof sheet from shifting.
以上の構成より、本発明の防水シート敷設装置及び防水シートの敷設方法は次の効果の少なくともひとつを備える。
＜１＞略半筒形の外枠上に並列配置した帯状のバルーンを膨張させることで、一次覆工面に対応した適切な弛み量をもって防水シートを敷設できる。このため、アーチ頂部への背面空洞の発生を防止できる。
＜２＞大面積の防水シートを一括して固定できるため作業効率が非常に高い。
＜３＞作業効率が高いため、１０ｍ超の長スパンの防水シートを一度に敷設することができる。このため、防水シート同士の溶着頻度を従来の１／５程度に減らせるため、施工効率が非常に高い。
＜４＞防水シートの溶着箇所を減らすことで、溶着部からの漏水リスクを低減できる。
＜５＞全体工程のボトルネックとなっていたシート防水工の施工効率を高めることで、全体工期を短縮して急速施工を実現できる。
With the above configuration, the waterproof sheet laying apparatus and the waterproof sheet laying method of the present invention have at least one of the following effects.
<1> By inflating strip-shaped balloons arranged in parallel on a substantially semi-cylindrical outer frame, the waterproof sheet can be laid with an appropriate amount of slack corresponding to the primary lining surface. Therefore, it is possible to prevent the formation of a back cavity on the top of the arch.
<2> Work efficiency is very high because large-area waterproof sheets can be fixed together.
<3> Due to the high work efficiency, it is possible to lay a waterproof sheet with a long span of over 10m at once. For this reason, the frequency of welding between waterproof sheets can be reduced to about 1/5 of that in the conventional method, and construction efficiency is extremely high.
<4> By reducing the number of welded parts of the waterproof sheet, the risk of water leakage from the welded parts can be reduced.
<5> By increasing the construction efficiency of sheet waterproofing, which has been a bottleneck in the overall process, the overall construction period can be shortened and rapid construction can be realized.
以下、図面を参照しながら本発明の防水シート敷設装置及び防水シートの敷設方法について詳細に説明する。なお「上」「下」「左」「右」等の各方位は、防水シート敷設装置の長手方向をトンネルの延長方向に沿って坑内に配置した状態における各方位を指す。 Hereinafter, the waterproof sheet laying apparatus and the waterproof sheet laying method of the present invention will be described in detail with reference to the drawings. The directions such as "up", "down", "left", "right", etc. refer to the directions when the waterproof sheet laying device is arranged in the tunnel along the extension direction of the tunnel.
[防水シート敷設装置]
＜１＞全体の構成（図１）。
本発明の防水シート敷設装置１は、一次覆工後のトンネル内壁に防水シートＳを敷設する装置である。
防水シート敷設装置１は、トンネル内壁に対応した形状の枠状体からなる基台１０と、基台１０上に配置した複数の膨張体２０と、膨張体２０に送気可能な送気手段３０と、を少なくとも備える。
防水シート敷設装置１は、トンネル長手方向に沿って前後進可能である。
[Waterproof sheet laying device]
<1> Overall configuration (Fig. 1).
A waterproof
The waterproof
The waterproof
＜１．１＞防水シート。
本発明の防水シート敷設装置１で敷設する防水シートＳについて説明する。
本例では、防水シートＳとして、エチレン・酢酸ビニル共重合樹脂（ＥＶＡ）製シートの一面に長繊維不織布を張り合わせたシート材を採用する。
本例では防水シートＳの幅を１０．５ｍと従来技術の５倍程度とし、長さは一次覆工面の一端から端までの周長に対応させる。
なお、防水シートＳの構成はこれに限られず、所定の遮水性能と強度を備えれば、他の公知の各種シート材を採用してもよい。
<1.1> Waterproof sheet.
The waterproof sheet S laid by the waterproof
In this example, as the waterproof sheet S, a sheet material is used in which a long-fiber nonwoven fabric is bonded to one surface of an ethylene-vinyl acetate copolymer (EVA) sheet.
In this example, the width of the waterproof sheet S is 10.5 m, which is about five times that of the prior art, and the length corresponds to the circumferential length from one end to the end of the primary lining surface.
The structure of the waterproof sheet S is not limited to this, and other known various sheet materials may be employed as long as they have predetermined waterproof performance and strength.
＜２＞基台。
基台１０は、防水シート敷設装置１の主構造である。
本例では基台１０として、トンネルの一次覆工面に対応した略半筒状の外枠１２と、外枠１２を支持する支持枠１１と、支持枠１１の下部に付設した複数の車輪１３と、を少なくとも備える養生台車を採用する。
支持枠１１は、形鋼を枠状に組んでなる。
外枠１２は、支持枠１１の外殻であって、長手方向に延伸する複数の梁材を有する。
車輪１３は、支持枠１１の支柱の下部に位置し、防水シート敷設装置１をトンネル長手方向に沿って進退する部材である。
但し基台１０の構成はこれに限られず、要は一次覆工面に対応した形状の外枠１２を有していればよい。
<2> Base.
The base 10 is the main structure of the waterproof
In this example, the base 10 includes a substantially semi-cylindrical outer frame 12 corresponding to the primary lining surface of the tunnel, a support frame 11 supporting the outer frame 12, and a plurality of wheels 13 attached to the lower portion of the support frame 11. , is adopted.
The support frame 11 is formed by assembling shaped steel in a frame shape.
The outer frame 12 is the outer shell of the support frame 11 and has a plurality of beam members extending in the longitudinal direction.
The wheels 13 are members positioned below the support columns of the support frame 11 to advance and retreat the waterproof
However, the configuration of the base 10 is not limited to this.
＜３＞膨張体。
膨張体２０は、防水シートＳを一次覆工面に押し付けるための構造である。
本例では膨張体２０として、気体で膨張する扁平長尺のバルーン体を採用する。
膨張体２０の長さは外枠１２の長さに対応させ、複数の膨張体２０を外枠１２の梁に沿って並列配置して固定する。
膨張体２０は後述する送気手段３０とホース等で接続し、送気手段３０からの気体圧送によって主に高さ方向に膨張する。
なお、複数の膨張体２０は外枠１２の外周全面に配置する必要はなく、少なくともスプリングラインより上部に配置すればよい。
<3> Inflatable body.
The inflatable body 20 is a structure for pressing the waterproof sheet S against the primary lining surface.
In this example, a flat and long balloon body that is inflated with gas is used as the inflatable body 20 .
The length of the inflatable body 20 corresponds to the length of the outer frame 12, and the plurality of inflatable bodies 20 are arranged in parallel along the beam of the outer frame 12 and fixed.
The inflatable body 20 is connected to an air supply means 30 to be described later by a hose or the like, and is inflated mainly in the height direction by pressure-feeding gas from the air supply means 30 .
It should be noted that the plurality of inflatable bodies 20 need not be arranged all over the outer periphery of the outer frame 12, and may be arranged at least above the spring line.
＜４＞送気手段。
送気手段３０は、膨張体２０内に気体を圧送して膨張させるための構造である。
本例では、送気手段３０として、基台１０に搭載したコンプレッサを採用する。
送気手段３０は、ホース（不図示）で各膨張体２０に接続し、坑内の空気を圧送して膨張体２０を個別に膨張させることができる。
なお、送気手段３０はコンプレッサに限らず、ファンやブロワであってもよい。
<4> Air supply means.
The air supply means 30 is a structure for pumping gas into the inflatable body 20 to inflate it.
In this example, a compressor mounted on the base 10 is used as the air supply means 30 .
The air supply means 30 is connected to each inflatable body 20 with a hose (not shown), and can inflate the inflatable body 20 individually by pumping the air in the pit.
Incidentally, the air supply means 30 is not limited to a compressor, and may be a fan or a blower.
[防水シートの敷設方法]
＜１＞全体の構成。
本発明の防水シート敷設方法は、複数の帯状の付着手段Ｆを一次覆工面に固定する工程と、外枠上１２に防水シートＳを展開する工程と、膨張体２０を膨張させて防水シートＳを一次覆工面上の付着手段Ｆに付着させる工程と、を少なくとも備える。
[How to lay a waterproof sheet]
<1> Overall configuration.
The waterproof sheet laying method of the present invention includes the steps of fixing a plurality of band-shaped attachment means F to the primary lining surface, the steps of deploying the waterproof sheet S on the outer frame 12, and the expanding member 20 to expand the waterproof sheet S. to the attachment means F on the primary lining surface.
＜１．１＞付着手段。
本発明の防水シートの敷設方法で使用する付着手段Ｆについて説明する。
付着手段Ｆは、一次覆工面上に予め固定することで防水シートＳの一括敷設を可能にするための部材である。
本例では、付着手段Ｆとして長尺帯状の面ファスナー（オス）を採用する。
防水シートＳの一面には長繊維不織布が張り付けてあるから、不織布面に付着手段Ｆを接触させることで、不織布の繊維に面ファスナーのフック体が絡んで強力に付着する。
付着手段Ｆはこれに限られず、要は防水シートＳの不織布面に付着してこれを一次覆工面に固定可能な手段であればよい。
<1.1> Attachment means.
The adhesion means F used in the waterproof sheet laying method of the present invention will be described.
The attachment means F is a member for enabling the collective laying of the waterproof sheets S by fixing them on the primary lining surface in advance.
In this example, a long belt-shaped hook-and-loop fastener (male) is used as the attaching means F. As shown in FIG.
Since the long-fiber nonwoven fabric is attached to one surface of the waterproof sheet S, by bringing the attaching means F into contact with the nonwoven fabric surface, the hooks of the hook-and-loop fastener are entwined with the fibers of the nonwoven fabric and strongly attached.
The attachment means F is not limited to this, and in short, any means that can attach to the non-woven fabric surface of the waterproof sheet S and fix it to the primary lining surface may be used.
＜２＞付着手段の固定。
作業に適当な長さの付着手段Ｆを準備する。
作業台車等の上から一次覆工面に対し、トンネル長手方向に沿って付着手段Ｆを配置し、コンクリート釘等で固定する。
複数の付着手段Ｆを長手方向に打ち継いで一列とし、これを少なくともスプリングラインより上部に並列配置する。各列の間隔と固定位置は膨張体２０の配置に対応させる。
付着手段Ｆの一列の長さは防水シートＳの幅から溶着用の重ねしろを引いた長さとする。
<2> Fixation of the attachment means.
Prepare an adhesion means F having a suitable length for the work.
Attachment means F is placed along the longitudinal direction of the tunnel from above the work cart or the like to the primary lining surface and fixed with concrete nails or the like.
A plurality of attachment means F are spliced in the longitudinal direction to form a row, and arranged in parallel at least above the spring line. The spacing and fixed position of each row correspond to the arrangement of the inflatable bodies 20 .
The length of one row of the adhesion means F is the width of the waterproof sheet S minus the overlapping margin for welding.
＜３＞防水シートの展開。
外枠１２に配置した複数の膨張体２０上に、防水シートＳを展開する。
展開方法は、眼鏡巻きした防水シートＳをホイストクレーンで基台１０上に吊り上げて両側に下ろす方法や、基台１０の片側から反対側へウインチ等で引っ張り上げる方法など、いずれを採用してもよい。
防水シートＳは不織布面を上向きにして、シートの中央を基台１０の中央に合わせてセンタリングする。この際、防水シートＳのずれを防ぐために、防水シートＳを膨張体２０に仮留めするとよい。
<3> Deployment of the waterproof sheet.
A waterproof sheet S is spread over a plurality of inflatable bodies 20 arranged on the outer frame 12.例文帳に追加
The unfolding method may be a method of lifting the spectacle-wrapped waterproof sheet S onto the base 10 with a hoist crane and lowering it to both sides, or a method of pulling up from one side of the base 10 to the other side with a winch or the like. good.
The non-woven fabric surface of the waterproof sheet S faces upward, and the center of the sheet is aligned with the center of the base 10 for centering. At this time, it is preferable to temporarily fasten the waterproof sheet S to the inflatable body 20 in order to prevent the waterproof sheet S from slipping.
＜４＞防水シートの付着（図２）。
送気手段３０を作動させて複数の膨張体２０の内部に気体を同時圧送し、膨張体２０を膨張させる。
すると外枠１２外周の全ての膨張体２０が高さ方向に膨張することで、防水シートＳが一次覆工面の方向に押し広げられる。
防水シートＳの不織布面が、一次覆工面上の付着手段Ｆに接触すると、不織布の繊維に付着手段Ｆのフック体が絡んで付着することで、防水シートＳが付着手段Ｆを介して一次覆工面に強力に固定される。
本発明の防水シートの敷設方法は、防水シートＳを、並列配置した帯状の膨張体２０により一次覆工面に近い形状で押し付けるため、長スパンの防水シートＳを適切な弛み量を確保しつつ効率的に敷設することができる。
<4> Adhesion of the waterproof sheet (Fig. 2).
The air supply means 30 is operated to simultaneously pump gas into the plurality of inflatable bodies 20 to inflate the inflatable bodies 20 .
Then, all the inflatable bodies 20 on the outer periphery of the outer frame 12 inflate in the height direction, so that the waterproof sheet S is spread in the direction of the primary lining surface.
When the non-woven fabric surface of the waterproof sheet S comes into contact with the attachment means F on the primary lining surface, the hook bodies of the attachment means F are entwined with the fibers of the non-woven fabric and attached, so that the waterproof sheet S is attached to the primary covering via the attachment means F. Strongly fixed to the work surface.
In the waterproof sheet laying method of the present invention, since the waterproof sheet S is pressed in a shape close to the primary lining surface by the strip-shaped expansion bodies 20 arranged in parallel, the long-span waterproof sheet S can be efficiently stretched while securing an appropriate amount of slack. can be laid
＜５＞防水シートの端部溶着。
一次覆工面から垂れ下がった防水シートＳの後端部を前スパンの防水シートＳの前端部と拝み合わせて溶着する。
なお、溶着は防水シートＳを複数スパン敷設した後にまとめて行ってもよい。
<5> Edge welding of the waterproof sheet.
The rear end of the waterproof sheet S hanging down from the primary lining surface is welded to the front end of the waterproof sheet S of the front span.
Note that welding may be performed collectively after laying a plurality of spans of the waterproof sheet S.
＜６＞作業の繰り返し。
１スパン分の作業が終わったら、防水シート敷設装置１を切羽側に前進させて＜１＞～＜５＞の作業を繰り返す。
<6> Repetition of work.
When the work for one span is completed, the waterproof
[押圧シートを備える例]
複数の膨張体の外側を押圧シートで被覆した他の実施例について説明する（図３）。
複数の膨張体２０の外側の、外枠１２の少なくともスプリングラインより上部を略半筒形の押圧シート４０で被覆する。
押圧シート４０の長さは少なくとも外枠１２の長さ以上とする。
押圧シート４０には、内側からの押圧によって押し広げ可能な程度の可撓性と、押し広げ後も略半筒形の形状を維持可能な程度の形状保持性を兼備する素材を採用する。
本例では押圧シート４０として、平滑な表面を備える樹脂製シートを採用する。
押圧シート４０は平滑な表面を有するから、押圧シート４０上にワイヤ等を掛け渡し、基台１０の片側から反対側へ防水シートＳを引っ張り上げることで、長尺の防水シートＳを容易に展開することができる。
また、複数の膨張体２０を膨張させると、押圧シート４０が一次覆工面に近い曲率で押し広げられ、防水シートＳを面状に押し付けることで、防水シートＳを適正な弛み量をもって一次覆工面に敷設することができる。
[Example with pressure sheet]
Another embodiment in which the outside of a plurality of inflatable bodies is covered with a pressing sheet will be described (Fig. 3).
A pressing sheet 40 having a substantially semi-cylindrical shape covers the outside of the plurality of inflatable bodies 20, at least above the spring line of the outer frame 12. - 特許庁
The length of the pressing sheet 40 is at least equal to or longer than the length of the outer frame 12 .
For the pressing sheet 40, a material is used that has both flexibility to the extent that it can be spread by pressing from the inside and shape retention that allows it to maintain a substantially semi-cylindrical shape after spreading.
In this example, a resin sheet having a smooth surface is used as the pressing sheet 40 .
Since the pressing sheet 40 has a smooth surface, a wire or the like is stretched over the pressing sheet 40 and the waterproof sheet S is pulled up from one side of the base 10 to the opposite side, thereby easily deploying the long waterproof sheet S. can do.
Further, when the plurality of inflatable bodies 20 are inflated, the pressing sheet 40 is expanded with a curvature close to the primary lining surface, and by pressing the waterproof sheet S flat, the waterproof sheet S is stretched to the primary lining surface with an appropriate amount of slack. can be laid in
[頂部の膨張体から膨張させる例]
実施例１では、複数の膨張体２０を同時に膨張させたが、本例では外枠１２の頂部に配置した膨張体２０を最初に膨張させる。
送気手段３０から頂部の膨張体２０に気体を圧送する。すると防水シートＳの中央部が持ち上がり、一次覆工面の頂部に設置した付着手段Ｆに付着する。
続いて、上方から下方へと膨張体２０を順次膨張させる。
本例によれば、防水シートＳの中央部を最初に一次覆工面に固定してから他の部分を固定するため、防水シートＳのセンター位置のずれを防ぐことができる。
なお、頂部の膨張体２０を最初に膨張させさえすれば、他の膨張体２０は同時に膨張させてもよい。
[Example of inflating from the top inflating body]
In Example 1, the plurality of inflatable bodies 20 were inflated simultaneously, but in this example, the inflatable body 20 arranged on the top of the outer frame 12 is inflated first.
Gas is pumped from the air supply means 30 to the top inflatable body 20 . Then, the central part of the waterproof sheet S is lifted and attached to the attachment means F installed on the top of the primary lining surface.
Subsequently, the inflatable body 20 is inflated sequentially from top to bottom.
According to this example, since the central portion of the waterproof sheet S is first fixed to the primary lining surface and then the other portions are fixed, it is possible to prevent the waterproof sheet S from shifting its center position.
As long as the top inflatable body 20 is inflated first, the other inflatable bodies 20 may be inflated at the same time.
１ 防水シート敷設装置
１０ 基台
１１ 支持枠
１２ 外枠
１３ 車輪
２０ 膨張体
３０ 送気手段
４０ 押圧シート
Ｓ 防水シート
Ｆ 付着手段
REFERENCE SIGNS
Claims (2)
トンネルの一次覆工面に対応した略半筒状の外枠を有する基台と、
前記外枠上の少なくとも頂部を含む複数個所に配置した帯状の膨張体であって、前記基台の長手方向に沿って延在し、前記外枠の径方向に間隔を空けて並列配置した複数の膨張体と、
前記複数の膨張体内に送気して膨張させる送気手段と、
前記外枠上における前記複数の膨張体の外側を被覆する押圧シートと、を備え、
前記外枠上における前記押圧シートの外側に防水シートを展開した状態において、前記複数の膨張体を膨張させることによって、防水シートを一次覆工面に押し付け可能に構成したことを特徴とする、
防水シート敷設装置。 A waterproof sheet laying device for laying a waterproof sheet on the inner wall of a tunnel after primary lining,
a base having a substantially semi-cylindrical outer frame corresponding to the primary lining surface of the tunnel;
A plurality of strip-shaped inflatable bodies arranged at a plurality of locations on the outer frame, including at least the top portion, extending along the longitudinal direction of the base and arranged side by side at intervals in the radial direction of the outer frame. an expansion body of
air supply means for supplying air into the plurality of inflatable bodies to inflate them;
a pressing sheet covering the outside of the plurality of inflatable bodies on the outer frame ;
The waterproof sheet can be pressed against the primary lining surface by inflating the plurality of inflatable bodies in a state in which the waterproof sheet is deployed outside the pressing sheet on the outer frame ,
Waterproof sheet laying equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2018083024A JP7166071B2 (en) | 2018-04-24 | 2018-04-24 | Waterproof sheet laying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2018083024A JP7166071B2 (en) | 2018-04-24 | 2018-04-24 | Waterproof sheet laying device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2019190101A JP2019190101A (en) | 2019-10-31 |
| JP7166071B2 true JP7166071B2 (en) | 2022-11-07 |
Family
ID=68389441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2018083024A Active JP7166071B2 (en) | 2018-04-24 | 2018-04-24 | Waterproof sheet laying device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP7166071B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116792131B (en) * | 2023-08-23 | 2023-10-20 | 吉林蛟河抽水蓄能有限公司 | Tunnel supporting device |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2651991B2 (en) * | 1993-08-12 | 1997-09-10 | 前田建設工業株式会社 | Tunnel-installed trolley |
| JPH07324596A (en) * | 1994-05-31 | 1995-12-12 | C K:Kk | Waterproof sheet laying construction method for tunnel and frame for it |
| JPH08338200A (en) * | 1995-06-13 | 1996-12-24 | Taisei Corp | Method and device for mounting tunnel lining work sheet |
| JPH1018787A (en) * | 1996-07-03 | 1998-01-20 | Shimizu Corp | Device for pressing water-proof sheet |
| JPH10317898A (en) * | 1997-05-20 | 1998-12-02 | Hokkosha:Kk | Method and device for installing waterproof sheet into tunnel |
| JP3990010B2 (en) * | 1997-10-15 | 2007-10-10 | 岐阜工業株式会社 | Method for disposing waterproof sheet in tunnel and dolly for disposing tunnel waterproof sheet |
-
2018
- 2018-04-24 JP JP2018083024A patent/JP7166071B2/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| JP2019190101A (en) | 2019-10-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2015154514A1 (en) | Inflation-type device used for installation of tunnel waterproof sheet having wide width, and construction and installation methods | |
| JP7166071B2 (en) | Waterproof sheet laying device | |
| US3225413A (en) | Inflatable form for a concrete building | |
| CN112392304A (en) | Stadium ultra-large span PTFE (polytetrafluoroethylene) membrane structure and mounting method thereof | |
| JP5399840B2 (en) | Concrete curing method | |
| US3139464A (en) | Building construction | |
| JP6731442B2 (en) | Tarpaulin laying device and tarpaulin laying method | |
| JP4589878B2 (en) | Lining concrete curing device | |
| JP7342058B2 (en) | Tunnel waterproofing method | |
| JP2012082603A (en) | Waterproof sheet for waterproof structure of tunnel | |
| JP6556990B2 (en) | Attaching the waterproof sheet | |
| JP5407963B2 (en) | Tarpaulin tensioning method and tarpaulin tensioning cart | |
| US10640195B2 (en) | Method for manufacturing a thermoacoustic insulation module for an aircraft comprising a bending step | |
| CN103958821A (en) | Method and apparatus for energy chain installation | |
| CN114776330A (en) | Tunnel primary support structure of diaphragm bag concrete and corrugated steel plate combination | |
| JP5508314B2 (en) | Tunnel lining forming method | |
| JP3158352B2 (en) | How to install a tarpaulin in the tunnel | |
| JP6942160B2 (en) | Tarpaulin sticking device and tarpaulin sticking method | |
| JP2017110393A (en) | Temporary roof | |
| JPH10317898A (en) | Method and device for installing waterproof sheet into tunnel | |
| JP7398594B1 (en) | Tunnel waterproofing method | |
| JP6330099B1 (en) | Waterproof sheet laying device and waterproof sheet laying method | |
| JP2001280096A (en) | Method and device for stretching waterproof sheet on tunnel | |
| JP2002266596A (en) | Spreading method for waterproof sheet for tunnel, and apparatus for use therein | |
| JPH11117691A (en) | Method and truck for placing water proofing sheet in tunnel |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20201228 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20211102 |
|
| A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20211108 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20211221 |
|
| A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20220203 |
|
| A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20220621 |
|
| A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20220818 |
|
| C60 | Trial request (containing other claim documents, opposition documents) |
Free format text: JAPANESE INTERMEDIATE CODE: C60 Effective date: 20220818 |
|
| A911 | Transfer to examiner for re-examination before appeal (zenchi) |
Free format text: JAPANESE INTERMEDIATE CODE: A911 Effective date: 20220825 |
|
| C21 | Notice of transfer of a case for reconsideration by examiners before appeal proceedings |
Free format text: JAPANESE INTERMEDIATE CODE: C21 Effective date: 20220830 |
|
| 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: 20221018 |
|
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20221025 |
|
| R150 | Certificate of patent or registration of utility model |
Ref document number: 7166071 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |