JP2010222837A - Manufacturing method for inner surface covering segment for tunnel lining and form device for the same - Google Patents

Manufacturing method for inner surface covering segment for tunnel lining and form device for the same Download PDF

Info

Publication number
JP2010222837A
JP2010222837A JP2009071145A JP2009071145A JP2010222837A JP 2010222837 A JP2010222837 A JP 2010222837A JP 2009071145 A JP2009071145 A JP 2009071145A JP 2009071145 A JP2009071145 A JP 2009071145A JP 2010222837 A JP2010222837 A JP 2010222837A
Authority
JP
Japan
Prior art keywords
mold
segment
resin
vacuum chamber
based sheet
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
Application number
JP2009071145A
Other languages
Japanese (ja)
Other versions
JP5624277B2 (en
Inventor
Mitsumasa Okamura
光政 岡村
Osamu Kobayashi
修 小林
Hiroki Miyoshi
裕輝 三好
Shuzo Kato
周三 加藤
Yoshio Nishida
与志雄 西田
Haruo Iso
陽夫 磯
Norihiko Kaneko
範彦 金子
Mitsuhiro Yasaka
光洋 八坂
Hiroyuki Sekiguchi
浩之 関口
Kosuke Nomoto
康介 野本
Tadao Sekiguchi
忠男 関口
Keisuke Iwaki
圭介 岩城
Nobuhiro Motoshige
信宏 本重
Masakazu Miura
勝和 三浦
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GRACE CHEMICALS KK
Taisei Corp
Shonan Plastic Manufacturing Co Ltd
Nishimatsu Construction Co Ltd
Maeda Corp
Toda Corp
Original Assignee
GRACE CHEMICALS KK
Taisei Corp
Shonan Plastic Manufacturing Co Ltd
Nishimatsu Construction Co Ltd
Maeda Corp
Toda Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by GRACE CHEMICALS KK, Taisei Corp, Shonan Plastic Manufacturing Co Ltd, Nishimatsu Construction Co Ltd, Maeda Corp, Toda Corp filed Critical GRACE CHEMICALS KK
Priority to JP2009071145A priority Critical patent/JP5624277B2/en
Publication of JP2010222837A publication Critical patent/JP2010222837A/en
Application granted granted Critical
Publication of JP5624277B2 publication Critical patent/JP5624277B2/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Engineering & Computer Science (AREA)
  • Lining And Supports For Tunnels (AREA)
  • Architecture (AREA)
  • Structural Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a manufacturing method for an inner surface covering segment for fixing a resin-made sheet while saving labor and holding it equally over the whole surface. <P>SOLUTION: In this manufacturing method for the inner surface covering segment S for tunnel lining by fixing the resin-made sheet 21 on a form face corresponding to an inner surface of the segment of the form device 1 for segment and placing concrete in a form, many holes 2a are formed on the form face 2A corresponding to the inner surface of the segment, a vacuum chamber 5 capable of adjusting degree of vacuum is formed on a rear surface side of the form face 2A, and pressure inside the vacuum chamber 5 is set to the predetermined negative pressure to place concrete in the form while the resin-made sheet 21 is fixed by suction force. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

本発明は、内面を樹脂系シートで一体的に被覆したトンネル覆工用セグメントの製造方法及びそのための型枠装置に関する。   The present invention relates to a method for manufacturing a tunnel lining segment whose inner surface is integrally covered with a resin-based sheet, and a formwork apparatus therefor.

都市トンネルでは、所謂シールド工法によって多くのトンネルが構築されている。このシールド工法は、シールド機で掘削を行いながら、該シールド機のスキンプレート後方部内で、断面円弧状等のセグメントを周方向に組み立てるとともに、組立済みのセグメントにトンネル軸方向に接続し、順次、トンネルを構築するトンネル工法である。   In urban tunnels, many tunnels are constructed by the so-called shield method. In this shield method, while excavating with a shield machine, in the rear part of the skin plate of the shield machine, assembling segments such as a circular arc cross section in the circumferential direction, connecting to the assembled segments in the tunnel axis direction, It is a tunnel construction method to build a tunnel.

この工法によるトンネル種別の内、特に下水道トンネルの場合は、管渠内で発生する硫化水素に原因してコンクリートに腐食が発生する問題があり、この腐食に対処するためにセグメントの内面をＦＲＰ、高密度ポリエチレン、ポリプロピレン等の樹脂系材料によって被覆することが行われている。   In the tunnel type by this construction method, especially in the case of sewer tunnels, there is a problem that the concrete is corroded due to hydrogen sulfide generated in the pipe rod. In order to cope with this corrosion, the inner surface of the segment is FRP, Coating with resin-based materials such as high-density polyethylene and polypropylene has been performed.

セグメント内面を被覆する方法としては、シールドトンネル構築後に、内面に樹脂系材料を貼り付けたり、吹き付けたり、樹脂パネルをボルト等によって取り付ける方法が採用されていたが、これらの方法の場合は現場作業が多くなり、工期が長期化する、労力コストが嵩むなどの問題があった。   As a method of covering the inner surface of the segment, after the construction of the shield tunnel, a method of attaching a resin material to the inner surface, spraying it, or attaching a resin panel with bolts etc. was adopted. However, there are problems such as an increase in work period and labor cost.

そこで近年は、樹脂系材料からなるシートをセグメントの内面に予め一体化させておく内面被覆セグメントが提案されている（下記特許文献１〜３等参照）。この内面被覆セグメントは、予め、セグメント成型用型枠の底面に樹脂系シートを例えば両面テープ等で固定した後、継手や鉄筋を組み付け、コンクリートを打設する手順によって製造されるものである。   In recent years, therefore, an inner surface covering segment in which a sheet made of a resin-based material is integrated in advance with the inner surface of the segment has been proposed (see Patent Documents 1 to 3 below). This inner surface covering segment is manufactured by a procedure in which a resin-based sheet is fixed to the bottom surface of a segment molding form in advance with, for example, a double-sided tape, and then joints and reinforcing bars are assembled and concrete is placed.

特開平１０−１５９４９２号公報JP-A-10-159492 特開平１１−１１７６９３号公報Japanese Patent Laid-Open No. 11-117693 特開２００４−１１１６９号公報JP 2004-11169 A

しかしながら、前記樹脂系シートを両面テープ等で固定する方法の場合は、両面テープの固定作業及び剥離作業に多くの時間と手間が掛かり、作業が効率化しないなどの問題があった。また、全面接着は実質的に不可能であり、要所を両面テープで止めることになるが、ズレが生じたり、両面テープの中間で徐々に生じた歪みがある箇所でシワとなって表出することがあるなどの問題があった。   However, in the case of the method of fixing the resin-based sheet with a double-sided tape or the like, there has been a problem that the fixing and peeling work of the double-sided tape takes a lot of time and labor, and the work is not efficient. In addition, it is practically impossible to adhere to the entire surface, and the important points will be stopped with double-sided tape, but it will appear as wrinkles where there is misalignment or there is a gradual distortion in the middle of the double-sided tape. There was a problem such as that.

そこで本発明の主たる課題は、内面被覆セグメント製造に当たり、樹脂系シートの固定を省力的に行い得るようにするとともに、全面に亘って均等に保持し得るようにしたトンネル覆工用内面被覆セグメントの製造方法及びそのための型枠装置を提案することにある。   Accordingly, the main problem of the present invention is that the inner surface covering segment for tunnel lining that can be held uniformly over the entire surface while making it possible to save the resin-based sheet in labor saving when manufacturing the inner surface covering segment. It is to propose a manufacturing method and a formwork apparatus therefor.

前記課題を解決するために請求項１に係る本発明として、セグメント用型枠装置のセグメント内面に対応する型枠面に樹脂系シートを固定し、型枠内にコンクリートを打設することにより前記樹脂系シートが一体化されたトンネル覆工用内面被覆セグメントを製造する方法において、
前記セグメント内面に対応する型枠面に多数の開孔を形成するとともに、前記型枠面の裏側に真空度を調整可能な真空チャンバを形成し、前記真空チャンバ内を所定の負圧状態とすることにより前記樹脂系シートを吸引力によって固定した状態で型枠内にコンクリートを打設することを特徴とするトンネル覆工用内面被覆セグメントの製造方法が提供される。 In order to solve the above-mentioned problem, as the present invention according to claim 1, the resin-based sheet is fixed to the mold surface corresponding to the segment inner surface of the segment mold apparatus, and concrete is placed in the mold frame. In the method of manufacturing the inner surface covering segment for tunnel lining in which the resin sheet is integrated,
A large number of apertures are formed on the mold surface corresponding to the inner surface of the segment, and a vacuum chamber capable of adjusting the degree of vacuum is formed on the back side of the mold surface, so that the vacuum chamber is in a predetermined negative pressure state. Thus, there is provided a method for producing an inner surface covering segment for tunnel lining, in which concrete is placed in a mold with the resin-based sheet fixed by a suction force.

上記請求項１記載の発明では、セグメント内面に対応する型枠面に多数の開孔を形成するとともに、前記型枠面の裏側に真空度を調整可能な真空チャンバを形成し、前記真空チャンバ内を所定の負圧状態とすることにより前記樹脂系シートを吸引力によって固定するようにした。従って、樹脂系シートを省力的かつ確実に型枠面に対し固定できるようになる。   In the first aspect of the present invention, a large number of apertures are formed in the mold surface corresponding to the inner surface of the segment, and a vacuum chamber capable of adjusting the degree of vacuum is formed on the back side of the mold surface. Was set to a predetermined negative pressure state to fix the resin-based sheet by a suction force. Therefore, the resin-based sheet can be fixed to the mold surface in a labor-saving and reliable manner.

請求項２に係る本発明として、円弧状型枠面を有する底版型枠と、この底版型枠の周方向端部から起立した起立型枠面を有する端面型枠と、底版型枠の側部から起立した起立型枠面を有する側面型枠とを備えたセグメント用型枠装置において、
前記底版型枠の円弧状型枠面に多数の開孔を形成するとともに、裏面側に真空チャンバを形成し、この真空チャンバに１又は複数のエア抜き管を連結するとともに、このエア抜き管を真空ポンプに接続し、前記エア抜き管の中間に開閉バルブを設けたことを特徴とするセグメント用型枠装置が提供される。 The present invention according to claim 2 includes a bottom plate mold frame having an arcuate mold surface, an end surface mold frame having an upright mold surface rising from a circumferential end of the bottom plate mold frame, and a side portion of the bottom plate mold frame. In a segment formwork apparatus comprising a side formwork having an upright formwork surface raised from
A number of apertures are formed in the arc-shaped mold surface of the bottom mold frame, a vacuum chamber is formed on the back side, and one or a plurality of air vent pipes are connected to the vacuum chamber. A segment mold apparatus is provided, which is connected to a vacuum pump and has an open / close valve in the middle of the air vent pipe.

請求項３に係る本発明として、前記底版型枠の周縁部において、前記端面型枠及び／又は側面型枠との挟持によって前記樹脂系シートの周縁を保持する周縁保持部を有する請求項２記載のセグメント用型枠装置が提供される。   According to a third aspect of the present invention, there is provided a peripheral holding portion that holds the peripheral edge of the resin-based sheet by being sandwiched between the end face mold and / or the side mold at the peripheral edge of the bottom mold. A segment formwork apparatus is provided.

上記請求項３記載の発明は、底版型枠の周縁部において、前記端面型枠及び／又は側面型枠との挟持によって前記樹脂系シートの周縁を保持する周縁保持部を有するようしたものである。これに樹脂系シートの端縁部のめくれや折返し等の不具合を無くして製造することが可能となる。   The invention described in claim 3 has a peripheral edge holding part for holding the peripheral edge of the resin-based sheet by sandwiching with the end face mold and / or the side mold at the peripheral edge of the bottom mold. . In addition, it is possible to manufacture the resin-based sheet without inconveniences such as turning up and turning of the end edge portion.

以上詳説のとおり本発明によれば、内面被覆セグメント製造に当たり、樹脂系シートの固定を省力的に行い得るようになるとともに、全面に亘って均等に保持し得るようになる。   As described above in detail, according to the present invention, in the production of the inner surface covering segment, the resin-based sheet can be fixed labor-saving and can be held uniformly over the entire surface.

本発明に係る内面被覆セグメント用型枠装置１の平面図である。It is a top view of the formwork apparatus 1 for inner surface covering segments which concerns on this invention. 図１のII−II線矢視図である。It is the II-II arrow directional view of FIG. 図１のIII−III線矢視図である。It is the III-III arrow directional view of FIG. 側面型枠４Ａ、４Ｂの正面図である。It is a front view of side formwork 4A, 4B. 内面被覆セグメントＳの製造手順図（その１）である。FIG. 6 is a manufacturing procedure diagram (part 1) of the inner surface covering segment S; 内面被覆セグメントＳの製造手順図（その２）である。FIG. 6 is a production procedure diagram (part 2) for the inner surface covering segment S; 内面被覆セグメントＳの製造手順図（その３）である。FIG. 6 is a production procedure diagram (part 3) for the inner surface covering segment S; 内面被覆セグメントＳの製造手順図（その４）である。FIG. 6 is a manufacturing procedure diagram (part 4) of the inner surface covering segment S;

以下、本発明の実施の形態について図面を参照しながら詳述する。   Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

図１〜図３に示されるように、内面被覆セグメント用型枠装置１（以下、単に型枠装置という。）は、円弧状型枠面を有する底版型枠２と、この底版型枠２の周方向端部から起立した起立型枠面を有する端面型枠３Ａ、３Ｂと、底版型枠２の側部から起立した起立型枠面を有する側面型枠４Ａ、４Ｂとからなり、前記底版型枠２の円弧状型枠面２Ａに多数の開孔２ａ、２ａ…を形成するとともに、裏面側に真空度を調整可能な真空チャンバ５を形成し、この真空チャンバ５に１又は複数のエア抜き管６を連結するとともに、このエア抜き管６を真空ポンプ７に接続し、前記エア抜き管６の中間に開閉バルブ８を設けたものである。なお、高流動コンクリートを使用する場合は、蓋型枠が追加される。   As shown in FIG. 1 to FIG. 3, an inner surface covering segment mold apparatus 1 (hereinafter simply referred to as a mold apparatus) includes a bottom plate mold 2 having an arcuate mold surface, and the bottom plate mold 2. The bottom plate mold comprises end surface molds 3A and 3B having upright mold surfaces rising from the circumferential ends, and side molds 4A and 4B having upright frame surfaces rising from the side of the bottom plate mold 2. A large number of apertures 2a, 2a,... Are formed in the arcuate mold surface 2A of the frame 2, and a vacuum chamber 5 capable of adjusting the degree of vacuum is formed on the back side, and one or a plurality of air vents are formed in the vacuum chamber 5. The pipe 6 is connected, the air vent pipe 6 is connected to a vacuum pump 7, and an open / close valve 8 is provided in the middle of the air vent pipe 6. In addition, when using high fluidity concrete, a lid formwork is added.

以下、前記型枠装置１について更に詳しく詳述する。   Hereinafter, the mold apparatus 1 will be described in more detail.

前記底版型枠２は、セグメント内面に対応する円弧状型枠面２Ａを有し、この円弧状型枠面２Ａに多数の開孔２ａ、２ａ…が形成されている。この開孔２ａは、円弧状型枠面２Ａの全面に亘って形成してある。前記円弧状型枠面２Ａの裏面から所定距離だけ離間した位置に前記円弧状面に沿うように配置された曲面封鎖板９と、端部封鎖板１０Ａ、１０Ｂと、側面型枠４Ａ、４Ｂとによって周囲が閉塞された真空チャンバ５が形成されている。   The bottom plate mold 2 has an arc-shaped mold surface 2A corresponding to the inner surface of the segment, and a plurality of holes 2a, 2a,... Are formed in the arc-shaped mold surface 2A. The opening 2a is formed over the entire surface of the arcuate mold surface 2A. A curved sealing plate 9 arranged along the arcuate surface at a position spaced apart from the back surface of the arcuate mold surface 2A by a predetermined distance, end sealing plates 10A and 10B, and side molds 4A and 4B; Thus, a vacuum chamber 5 whose periphery is closed is formed.

前記端面型枠３Ａ、３Ｂは、セグメントの周方向端面に対応する起立型枠面１１ａ、１２ａを有するボックス状の型枠部材１１，１２が使用されている。この型枠部材１１，１２には手動パンタジャッキ１３が連結されており、このジャッキ１３の手動操作によって前記型枠部材１１，１２が脱型時に離反方向に移動可能となっている。前記底版型枠２と型枠部材１１，１２とによる隅角部には、前記底版型枠２の円弧状型枠面方向に間隙１４が形成されており、この間隙１４によって樹脂系シートの縁部を挟持できるようになっている。前記間隙１４が本発明の「樹脂系シートの周縁保持部」を構成するものである。   As the end surface molds 3A and 3B, box-shaped mold members 11 and 12 having upright frame surfaces 11a and 12a corresponding to the circumferential end surfaces of the segments are used. A manual panter jack 13 is connected to the mold members 11 and 12, and the mold members 11 and 12 can be moved away from each other when the jack 13 is manually operated. A gap 14 is formed in a corner portion of the bottom plate mold 2 and the mold members 11 and 12 in the arcuate mold surface direction of the bottom plate mold 2, and the gap 14 forms an edge of the resin sheet. The part can be clamped. The gap 14 constitutes the “periphery holding portion of the resin-based sheet” of the present invention.

前記側面型枠４Ａ、４Ｂは、図４に示されるように、セグメントの側面に対応する起立型枠面１５ａ、１６ａを有する円弧板状の型枠１５、１６が使用されている。この円弧板状型枠１５、１６の内周側は、前記真空チャンバ５の側面閉塞板部１５ｂ、１６ｂを兼用しており、この側面閉塞板部１５ｂ、１６ｂに真空チャンバ５に連通するエア抜き管６の接続管６ａ、６ｂが接続されている。円弧板状型枠１５、１６には、２本のアーム部材１７，１８が設けられており、図３に示されるように、このアーム部材１７，１８の下端が型枠ベース１９に対して軸支されることにより、前記円弧板状型枠１５、１６が脱型時に離反方向に揺動するようになっている。前記底版型枠２と円弧板状型枠１５、１６とによる隅角部には、前記底版型枠２の面方向に間隙２０が形成されており、この間隙２０によって樹脂系シートの縁部を挟持できるようになっている。前記間隙２０も本発明の「樹脂系シートの周縁保持部」を構成するものである。   As shown in FIG. 4, the side surface molds 4 </ b> A and 4 </ b> B use arcuate plate-shaped molds 15 and 16 having upright mold surface surfaces 15 a and 16 a corresponding to the side surfaces of the segments. The arcuate plate-shaped molds 15, 16 have an inner peripheral side that also serves as side-surface closing plate portions 15 b, 16 b of the vacuum chamber 5, and an air vent that communicates with the side-surface closing plate portions 15 b, 16 b to the vacuum chamber 5. Connection pipes 6a and 6b of the pipe 6 are connected. The arc plate-shaped molds 15 and 16 are provided with two arm members 17 and 18, and the lower ends of the arm members 17 and 18 are pivoted with respect to the mold base 19 as shown in FIG. 3. By being supported, the arcuate plate-shaped molds 15 and 16 swing in the separating direction when removed. A gap 20 is formed in a corner direction of the bottom plate mold 2 and the arc plate molds 15 and 16 in the surface direction of the bottom plate mold 2, and the edge of the resin-based sheet is formed by the gap 20. It can be pinched. The gap 20 also constitutes the “periphery holding portion of the resin-based sheet” of the present invention.

〔内面被覆セグメントの製造手順〕
次に、前記型枠装置１を用いた内面被覆セグメントの製造手順について、図５〜図８に基づいて詳述する。 [Procedure for manufacturing inner surface coating segment]
Next, the manufacturing procedure of the inner surface covering segment using the mold apparatus 1 will be described in detail with reference to FIGS.

図５に示されるように、底版型枠２の円弧状型枠面の上に樹脂系シート２１を敷設する。この際、樹脂系シート２１の周縁は前記底版型枠２と型枠部材１１，１２との隅角部に形成された間隙１４、前記底版型枠２と円弧板状型枠１５、１６との隅角部に形成された間隙２０にそれぞれ挿入し保持するようにする。   As shown in FIG. 5, a resin sheet 21 is laid on the arcuate mold surface of the bottom mold 2. At this time, the periphery of the resin-based sheet 21 is a gap 14 formed in a corner portion between the bottom plate mold 2 and the mold members 11 and 12, and the bottom plate mold 2 and the arc plate-shaped molds 15 and 16. Each is inserted and held in the gap 20 formed at the corner.

前記樹脂系シート２１としては、高密度ポリエチレン、ポリプロピレン等の樹脂層と、コンクリートへの定着層とからなる２層構造のものが好適に使用される。前記樹脂系シート２１の品質は、日本下水道事業団「下水道コンクリート構造物の腐食抑制技術及び防食技術マニュアル」のシートライニング工法の品質規格「Ｄ２種」に定める品質を満足するものとする。具体的には下記(1)〜(5)の条件を満足する樹脂系シートとする。
(1)被覆（シート）の外観にしわ、むら、はがれ、われがない。
(2)シートとコンクリートとの固着性は、0.24N/mm２以上である。
(3)10％硫酸水溶液、水酸化カルシウム飽和水溶液にそれぞれ60日間浸せきしても被覆にふくれ、われ、軟化、溶出がない。
(4)10％硫酸水溶液に120日間浸せきした時の硫黄侵入深さが１％以下である。
(5)0.29Mpaの水圧を１時間かけても透水量は0.15g以下である。 As the resin-based sheet 21, a two-layer structure composed of a resin layer such as high-density polyethylene or polypropylene and a fixing layer to concrete is preferably used. The quality of the resin-based sheet 21 shall satisfy the quality specified in the quality standard “Type D 2 ” of the sheet lining construction method of the “Japan Sewerage Corporation Corrosion Inhibition Technology and Anticorrosion Technology Manual”. Specifically, the resin sheet satisfies the following conditions (1) to (5).
(1) There is no wrinkle, unevenness, peeling or cracking on the appearance of the coating (sheet).
(2) The adhesion between the sheet and concrete is 0.24 N / mm 2 or more.
(3) Even if immersed in a 10% sulfuric acid aqueous solution and a saturated calcium hydroxide aqueous solution for 60 days, there is no swelling, softening, or dissolution of the coating.
(4) The depth of sulfur penetration when immersed in a 10% sulfuric acid aqueous solution for 120 days is 1% or less.
(5) Water permeability is 0.15 g or less even when water pressure of 0.29 Mpa is applied for 1 hour.

その他には、下記(1)〜(6)の条件を満足することが望ましい。
(1)シートとコンクリート(セグメント)との固着性は、0.40N/mm２以上である。
(2)摩耗試験（JIS A 5209-1994(改正)）の結果、摩耗量は塩ビ管0.02gに対しシートは0.00gである。
(3)耐衝撃性試験(JIS A 6916-2000(改正))の結果、シートにひび割れおよびはがれがない。
(4)シートの粗度係数は、塩ビ管とほぼ同等の0.01以下である。
(5)セグメント取付後のシートにしわ、むら、はがれ、われがない。
(6)セグメント取付後のシートは、設計荷重の正・負曲げ試験、推力試験で剥離、破断しない。 In addition, it is desirable to satisfy the following conditions (1) to (6).
(1) The adhesiveness between the sheet and concrete (segment) is 0.40 N / mm 2 or more.
(2) As a result of the abrasion test (JIS A 5209-1994 (revision)), the abrasion amount is 0.02 g for PVC pipe and 0.00 g for the sheet.
(3) As a result of the impact resistance test (JIS A 6916-2000 (revised)), the sheet is not cracked or peeled off.
(4) The roughness coefficient of the sheet is 0.01 or less, which is almost the same as that of a PVC pipe.
(5) There is no wrinkling, unevenness, peeling or cracking on the sheet after the segment is mounted.
(6) The sheet after the segment is mounted will not peel or break in the design load positive / negative bending test or thrust test.

前記定着層の構造は特に限定されないが、例えば特開2004-11169号公報に開示された接合補助織物の如き３次元構造の定着体や、微細な突起を有する特殊接着層とすることができる。後者の特殊接着層は、特表２００４−５１３８０１号公報において開示された、コンクリート又はモルタルの水和から生成する水酸化物と反応性を有する接着層であり、樹脂系シート２１をコンクリートに定着させる定着層として好適に用いることができる。   The structure of the fixing layer is not particularly limited. For example, a fixing body having a three-dimensional structure such as a joining auxiliary fabric disclosed in Japanese Patent Application Laid-Open No. 2004-11169, or a special adhesive layer having fine protrusions can be used. The latter special adhesive layer is an adhesive layer that is reactive with a hydroxide generated from hydration of concrete or mortar, disclosed in JP-T-2004-513801, and fixes the resin-based sheet 21 to the concrete. It can be suitably used as a fixing layer.

前記樹脂系シート２１の定着層を上面側として、円弧状型枠面２Ａの上に樹脂系シート２１を敷設したならば、真空ポンプ７を稼働させて真空チャンバ５内を所定の負圧状態とし、前記樹脂系シート２１を開孔２ａ、２ａ…部分に生じる吸引力によってしっかりと固定する。この状態で開閉バルブ８を閉め固定状態を維持する。   When the resin-based sheet 21 is laid on the arcuate mold surface 2A with the fixing layer of the resin-based sheet 21 as the upper surface side, the vacuum pump 7 is operated to bring the inside of the vacuum chamber 5 into a predetermined negative pressure state. The resin-based sheet 21 is firmly fixed by the suction force generated in the openings 2a, 2a. In this state, the open / close valve 8 is closed and the fixed state is maintained.

次いで、図６に示されるように、鉄筋籠２２や継手等を設置したならば、図７に示されるように、コンクリート２３を打設する。この際、図示されるように、テーブルバイブレーター２４によって振動を与えるようにする。なお、振動は棒状バイブレータや型枠に取り付けたバイブレータによって付与することも可能である。   Next, as shown in FIG. 6, when the reinforcing bar 22 and the joint are installed, the concrete 23 is placed as shown in FIG. At this time, vibration is applied by the table vibrator 24 as shown in the figure. In addition, vibration can also be provided by a vibrator attached to a rod-like vibrator or a mold.

打設後のコンクリート上面をコテによって均したならば、所定の時期に開閉バルブ８を開放し前記真空チャンバ５内を大気状態とする。その後硬化を待って、前記端面型枠３Ａ、３Ｂを手動パンタジャッキ１３の操作によって離反方向に移動させて脱型するとともに、前記側面型枠４Ａ、４Ｂを図８に示されるように、離反方向に揺動させて脱型する。製造されたセグメントＳは、樹脂系シート２１の周縁がセグメントＳの外形線よりも外側に突出しているため、この突出部分２１ａ（周縁保持部）を切り落として製造を完了する。   When the concrete upper surface after placing is leveled with a trowel, the opening / closing valve 8 is opened at a predetermined time to bring the inside of the vacuum chamber 5 into an atmospheric state. Then, after curing, the end face molds 3A and 3B are moved away from the mold by operating the manual panter jack 13, and the side molds 4A and 4B are moved away from each other as shown in FIG. Swing to remove the mold. Since the periphery of the resin-based sheet 21 protrudes outside the outline of the segment S, the manufactured segment S is completed by cutting off the protruding portion 21a (periphery holding portion).

〔他の形態例〕
(1)上記形態例では、円弧状型枠面２Ａを有する底版型枠２と、この底版型枠２の周方向端部から起立した起立型枠面１１ａ、１２ａを有する端面型枠３Ａ、３Ｂと、底版型枠２の側部から起立した起立型枠面１５ａ、１６ａを有する側面型枠４Ａ、４Ｂとからなる型枠装置とし、セグメントの内面が下側、上面が上側となるようにしたが、セグメントを縦置き状態とする型枠装置とすることも可能である。この型枠装置は、セグメントの外面及び内面に対応する円弧状型枠面を有する一対の側面型枠と、側面型枠間の底面を塞ぐように設けた底版型枠と、側面型枠間の端面を塞ぐように設けた端面型枠とからなる型枠装置である。この場合は、前記一対の側面型枠の内、セグメント内面に対応する側に真空チャンバを設けるようにする。 [Other examples]
(1) In the above embodiment, the end plate mold 2 having the arc-shaped mold surface 2A and the end surface molds 3A and 3B having the upright mold surfaces 11a and 12a raised from the circumferential end of the bottom mold 2 And a side frame 4A, 4B having upright mold surfaces 15a, 16a upstanding from the side of the bottom plate mold 2, and the inner surface of the segment is on the lower side and the upper surface is on the upper side. However, it is also possible to provide a formwork apparatus in which the segments are placed vertically. This formwork apparatus includes a pair of side face formwork having arcuate formwork faces corresponding to the outer and inner surfaces of a segment, a bottom formwork provided so as to close a bottom face between the side face formwork, and a side face formwork. It is a formwork apparatus consisting of an end face formwork provided so as to close the end face. In this case, a vacuum chamber is provided on the side corresponding to the inner surface of the segment among the pair of side surface molds.

１…内面被覆セグメント用型枠装置、２…底版型枠、２ａ…開孔、３Ａ・３Ｂ…端面型枠、４Ａ・４Ｂ…側面型枠、５…真空チャンバ、６…エア抜き管、７…真空ポンプ、８…開閉バルブ   DESCRIPTION OF SYMBOLS 1 ... Formwork apparatus for inner surface covering segments, 2 ... Bottom plate formwork, 2a ... Opening, 3A * 3B ... End face formwork, 4A * 4B ... Side face formwork, 5 ... Vacuum chamber, 6 ... Air vent pipe, 7 ... Vacuum pump, 8 ... Open / close valve

Claims (3)

セグメント用型枠装置のセグメント内面に対応する型枠面に樹脂系シートを固定し、型枠内にコンクリートを打設することにより前記樹脂系シートが一体化されたトンネル覆工用内面被覆セグメントを製造する方法において、
前記セグメント内面に対応する型枠面に多数の開孔を形成するとともに、前記型枠面の裏側に真空度を調整可能な真空チャンバを形成し、前記真空チャンバ内を所定の負圧状態とすることにより前記樹脂系シートを吸引力によって固定した状態で型枠内にコンクリートを打設することを特徴とするトンネル覆工用内面被覆セグメントの製造方法。 An inner surface covering segment for tunnel lining in which the resin-based sheet is integrated by fixing a resin-based sheet on a mold surface corresponding to the inner surface of the segment mold apparatus and placing concrete in the mold. In the manufacturing method,
A large number of apertures are formed on the mold surface corresponding to the inner surface of the segment, and a vacuum chamber capable of adjusting the degree of vacuum is formed on the back side of the mold surface, so that the vacuum chamber is in a predetermined negative pressure state. Thus, concrete is placed in a mold frame in a state where the resin-based sheet is fixed by suction force, and a method for producing an inner surface covering segment for tunnel lining is provided. 円弧状型枠面を有する底版型枠と、この底版型枠の周方向端部から起立した起立型枠面を有する端面型枠と、底版型枠の側部から起立した起立型枠面を有する側面型枠とを備えたセグメント用型枠装置において、
前記底版型枠の円弧状型枠面に多数の開孔を形成するとともに、裏面側に真空チャンバを形成し、この真空チャンバに１又は複数のエア抜き管を連結するとともに、このエア抜き管を真空ポンプに接続し、前記エア抜き管の中間に開閉バルブを設けたことを特徴とするセグメント用型枠装置。 A bottom plate mold having an arc-shaped mold surface, an end surface mold having an upright mold surface rising from a circumferential end of the bottom mold frame, and an upright mold surface rising from a side of the bottom mold frame In the segment formwork apparatus provided with the side formwork,
A number of apertures are formed in the arc-shaped mold surface of the bottom mold frame, a vacuum chamber is formed on the back side, and one or a plurality of air vent pipes are connected to the vacuum chamber. A segment mold apparatus connected to a vacuum pump and provided with an open / close valve in the middle of the air vent pipe. 前記底版型枠の周縁部において、前記端面型枠及び／又は側面型枠との挟持によって前記樹脂系シートの周縁を保持する周縁保持部を有する請求項２記載のセグメント用型枠装置。   3. The segment mold apparatus according to claim 2, further comprising a peripheral edge holding portion configured to hold a peripheral edge of the resin-based sheet by being sandwiched between the end face mold and / or the side surface mold at the peripheral edge of the bottom mold.
JP2009071145A 2009-03-24 2009-03-24 Method for manufacturing inner surface covering segment for tunnel lining and formwork apparatus therefor Expired - Fee Related JP5624277B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2009071145A JP5624277B2 (en) 2009-03-24 2009-03-24 Method for manufacturing inner surface covering segment for tunnel lining and formwork apparatus therefor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2009071145A JP5624277B2 (en) 2009-03-24 2009-03-24 Method for manufacturing inner surface covering segment for tunnel lining and formwork apparatus therefor

Publications (2)

Publication Number Publication Date
JP2010222837A true JP2010222837A (en) 2010-10-07
JP5624277B2 JP5624277B2 (en) 2014-11-12

Family

ID=43040320

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2009071145A Expired - Fee Related JP5624277B2 (en) 2009-03-24 2009-03-24 Method for manufacturing inner surface covering segment for tunnel lining and formwork apparatus therefor

Country Status (1)

Country Link
JP (1) JP5624277B2 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014129406A1 (en) * 2013-02-19 2014-08-28 鹿島建設株式会社 Method for manufacturing concrete structure, concrete curing sheet for curing concrete
JP2014214552A (en) * 2013-04-26 2014-11-17 鹿島建設株式会社 Method for manufacturing concrete structure and holding system of concrete curing sheet
JP2015218451A (en) * 2014-05-14 2015-12-07 株式会社大林組 Concrete curing method
US20150375420A1 (en) * 2013-02-19 2015-12-31 Kajima Corporation Method for Manufacturing Concrete Structure, Concrete Curing Sheet for Curing Concrete
CN108661671A (en) * 2018-05-16 2018-10-16 中铁十七局集团第三工程有限公司 Tunnel vault two serves as a contrast concrete vacuum and assists pouring procedure
CN113374500A (en) * 2021-07-19 2021-09-10 南通铁建建设构件有限公司 Shield constructs section of jurisdiction vacuum chuck decompression early warning and system of preventing falling

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS631504A (en) * 1986-06-20 1988-01-06 石井　一郎 Method of vacuum formwork construction
JPH10166342A (en) * 1996-12-13 1998-06-23 Ishikawajima Constr Materials Co Ltd Shuttering for concrete product
JP2005126954A (en) * 2003-10-22 2005-05-19 Penta Ocean Constr Co Ltd Method of manufacture of segment for shield tunnel
JP2006341503A (en) * 2005-06-09 2006-12-21 Teihyu Corp Method for manufacturing segment having sheet lining

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS631504A (en) * 1986-06-20 1988-01-06 石井　一郎 Method of vacuum formwork construction
JPH10166342A (en) * 1996-12-13 1998-06-23 Ishikawajima Constr Materials Co Ltd Shuttering for concrete product
JP2005126954A (en) * 2003-10-22 2005-05-19 Penta Ocean Constr Co Ltd Method of manufacture of segment for shield tunnel
JP2006341503A (en) * 2005-06-09 2006-12-21 Teihyu Corp Method for manufacturing segment having sheet lining

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014129406A1 (en) * 2013-02-19 2014-08-28 鹿島建設株式会社 Method for manufacturing concrete structure, concrete curing sheet for curing concrete
US20150375420A1 (en) * 2013-02-19 2015-12-31 Kajima Corporation Method for Manufacturing Concrete Structure, Concrete Curing Sheet for Curing Concrete
TWI620858B (en) * 2013-02-19 2018-04-11 鹿島建設股份有限公司 Manufacturing method of concrete structure, and concrete curing sheet for curing concrete
US9976314B2 (en) 2013-02-19 2018-05-22 Kajima Corporation Method for manufacturing concrete structure, concrete curing sheet for curing concrete
JP2014214552A (en) * 2013-04-26 2014-11-17 鹿島建設株式会社 Method for manufacturing concrete structure and holding system of concrete curing sheet
JP2015218451A (en) * 2014-05-14 2015-12-07 株式会社大林組 Concrete curing method
CN108661671A (en) * 2018-05-16 2018-10-16 中铁十七局集团第三工程有限公司 Tunnel vault two serves as a contrast concrete vacuum and assists pouring procedure
CN108661671B (en) * 2018-05-16 2024-02-23 中铁十七局集团第三工程有限公司 Vacuum auxiliary pouring method for tunnel vault secondary lining concrete
CN113374500A (en) * 2021-07-19 2021-09-10 南通铁建建设构件有限公司 Shield constructs section of jurisdiction vacuum chuck decompression early warning and system of preventing falling
CN113374500B (en) * 2021-07-19 2022-02-15 南通铁建建设构件有限公司 Shield constructs section of jurisdiction vacuum chuck decompression early warning and system of preventing falling

Also Published As

Publication number Publication date
JP5624277B2 (en) 2014-11-12

Similar Documents

Publication Publication Date Title
JP5624277B2 (en) Method for manufacturing inner surface covering segment for tunnel lining and formwork apparatus therefor
KR101068907B1 (en) Method and apparatus of a segment for constructing a tunnel
ATE413129T1 (en) SELF-SUPPORTING SHOWER FLOOR ELEMENT WITH FILM FOR FLOOR AND WALL SEALING
JP4686345B2 (en) Construction method of waterway structure
CN102285003A (en) Production process of reinforced concrete pipeline with anti-corrosion inner lining
CN102312488B (en) Waterproof method of buried water stopper for bonding building deformation joint
CN204645616U (en) Side wall rubber watertight strip fixed mould
KR101525780B1 (en) Construction method of buidlings using flexible form
JP2017106168A (en) Method of manufacturing concrete structure
CN211229512U (en) Formwork and formwork base body for pouring clear water concrete column
CN109008734B (en) Box type bathroom chassis and manufacturing method thereof
CN104314052B (en) De-molding method for end rib template of flume forming machine
JP4956646B2 (en) Waterway structure
JP4374594B2 (en) Manufacturing method for shield tunnel segment
CN206205438U (en) Circular platform type stops slurry rubber stopper and its concrete component structure
CN221646371U (en) Template structure for assembly type superimposed sheet seam
JP3139630U (en) Recyclable piping sleeve
CN217601515U (en) Quick mould device of outdoor inspection shaft
CN213390616U (en) Outer wall expansion joint connection node structure
KR102409576B1 (en) The method of manufacturing waterproof plates of unit bathrooms
CN107893536A (en) A kind of efficient construction method of expansion joint antiseep
CN218757620U (en) Protection architecture that wall face water joint is led to basement brick fetal membrane
JP6859013B2 (en) Manufacturing method of concrete housing and concrete housing
CN109171521B (en) Bathroom chassis, manufacturing method thereof and waterproof frame
JP2013123799A (en) Resin coating film forming method, lid body for underground structure, and lid body-receiving frame for under ground structure

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20120207

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20130226

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20130725

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20130918

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20140122

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20140304

A02 Decision of refusal

Free format text: JAPANESE INTERMEDIATE CODE: A02

Effective date: 20140403

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20140701

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A821

Effective date: 20140701

A911 Transfer to examiner for re-examination before appeal (zenchi)

Free format text: JAPANESE INTERMEDIATE CODE: A911

Effective date: 20140723

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: 20140908

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20140926

R150 Certificate of patent or registration of utility model

Ref document number: 5624277

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

S111 Request for change of ownership or part of ownership

Free format text: JAPANESE INTERMEDIATE CODE: R313117

S531 Written request for registration of change of domicile

Free format text: JAPANESE INTERMEDIATE CODE: R313531

S533 Written request for registration of change of name

Free format text: JAPANESE INTERMEDIATE CODE: R313533

R350 Written notification of registration of transfer

Free format text: JAPANESE INTERMEDIATE CODE: R350

LAPS Cancellation because of no payment of annual fees