JPH09268888A - Tunnel lining method using composite panel - Google Patents
Tunnel lining method using composite panelInfo
- Publication number
- JPH09268888A JPH09268888A JP8095908A JP9590896A JPH09268888A JP H09268888 A JPH09268888 A JP H09268888A JP 8095908 A JP8095908 A JP 8095908A JP 9590896 A JP9590896 A JP 9590896A JP H09268888 A JPH09268888 A JP H09268888A
- Authority
- JP
- Japan
- Prior art keywords
- tunnel
- concrete
- steel plate
- composite panel
- bent steel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Lining And Supports For Tunnels (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、複合パネルを用い
るトンネル覆工工法に関する。新設トンネルの二次覆工
工法、又は既設トンネルの補修工法に供することができ
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tunnel lining method using a composite panel. It can be used for the secondary lining method of a new tunnel or the repair method of an existing tunnel.
【０００２】[0002]
【従来の技術】従来、山岳の新設トンネルでは掘削直後
の地山崩壊を防止する目的で地山アンカー、コンクリー
ト吹付けによる一次覆工後にこれと協動する支保、及び
止水のため二次覆工が行われる。このうち、二次覆工は
通常、移動型枠を使用した場所打ちコンクリートで施工
されている。シールドトンネルでは、シールドマシンの
掘削推進に用いられる鋼製、鉄筋コンクリート製、鋳鉄
管のセグメントに裏込め注入を行い一次覆工とし、前記
と同様に二次覆工を行う場合が多い。また、既設トンネ
ルの補修は二次覆工のコンクリートをはつるか、そのま
まにしてトンネル内側に二次覆工の厚さに相当する空間
を設けて型枠を設置し、コンクリートを充填する方法で
行われている。2. Description of the Related Art Conventionally, in a new mountain tunnel, a ground anchor was used for the purpose of preventing collapse of the rock immediately after excavation, a support that cooperates with the concrete after the primary lining by spraying concrete, and a secondary cover for stopping water. Work is done. Of these, the secondary lining is usually constructed by cast-in-place concrete using a moving form. In a shield tunnel, a segment of steel, reinforced concrete, or cast iron pipe used for excavation and propulsion of a shield machine is backfilled and injected as a primary lining, and a secondary lining is often performed as described above. For repairing the existing tunnel, either use concrete for the secondary lining, or leave the space inside the tunnel and provide a space corresponding to the thickness of the secondary lining to install the formwork and fill the concrete. Has been done.
【０００３】これらの新設トンネルの二次覆工、既設ト
ンネルの補修は型枠を用いて場所打ちコンクリートで行
うため作業が煩雑で工期も長くなることから、最近は現
場組立式のプレキャスト版を用いる二次覆工の施工法、
或いは鋼板を用いる補修工法が提案されている。例え
ば、新設トンネルの場合につき具体例を挙げると、特公
平７−８８７５９号がある。特公平７−８８７５９号を
図１０により説明すると、一次覆工（セグメント２０）
の内方に工場製作のプレハブ版（プレキャスト版）２１
等の既製の分割体を組み立てて二次覆工を施工し、一次
覆工と二次覆工の周面間に間隙を確保し、この空間に止
水材２２を注入する覆工法を開示している。この方法に
よれば、二次覆工に用いているプレキャスト版は工場製
作のため品質が確保できるという利点がある。また、既
設トンネルの補修の場合につき具体例を挙げると、特公
平３−６８２００号がある。特公平３−６８２００号を
図１１により説明すると、老朽化した既設トンネルの内
周壁に沿って鋼板の内張材２３により内張りし、隙間に
グラウト材２４を注入するもので、既設トンネルの断面
積を殆ど減少させずにトンネル壁面の補修ができる利点
がある。Since the secondary lining of these new tunnels and the repair of existing tunnels are performed with cast-in-place concrete using a formwork, the work is complicated and the construction period becomes long. Recently, therefore, the on-site precast plate is used. Secondary lining construction method,
Alternatively, a repairing method using a steel plate has been proposed. For example, Japanese Patent Publication No. 7-88759 is a specific example of the case of a new tunnel. The Japanese Examined Patent Publication No. 7-88759 will be described with reference to FIG. 10. The primary lining (segment 20)
Factory prefabricated version (precast version) 21
Disclosure of a lining method of assembling ready-made divided bodies such as etc. to construct a secondary lining, securing a gap between the peripheral surfaces of the primary lining and the secondary lining, and injecting the waterproofing material 22 into this space. ing. According to this method, there is an advantage that the quality of the precast plate used for the secondary lining can be secured because it is manufactured at the factory. A specific example of repairing an existing tunnel is Japanese Patent Publication No. 3-68200. Explaining Japanese Examined Patent Publication No. 3-68200 with reference to FIG. 11, the lining material 23 made of steel plate is lined along the inner peripheral wall of the existing aging tunnel, and the grout material 24 is injected into the gap. There is an advantage that the tunnel wall surface can be repaired with almost no decrease.
【０００４】しかしながら、上記の従来の技術における
前者の特公平７−８８７５９号の方法では、プレキャス
ト版の重量が重いため取付作業が困難になるとともに止
水材の充填性を良好にする必要から、この注入空間を広
くする必要があり、トンネル掘削径を小さくする効果が
十分発揮できない、という問題点があった。また、後者
の特公平３−６８２００号の方法では、小規模トンネル
に対しては有効な技術であるが、内張り材（覆工版に相
当）が平面的な鋼板であるため構造的に大きな曲げ剛性
が得にくく、大断面トンネルには適用され難く、また、
内張材の鋼板の内周面には防食のため塗装を施す必要が
ある、という問題点があった。However, in the former method of Japanese Patent Publication No. 7-88759 in the above-mentioned conventional technique, since the weight of the precast plate is heavy, the mounting work becomes difficult and the filling property of the water blocking material needs to be improved. There is a problem in that it is necessary to widen this injection space, and the effect of reducing the tunnel excavation diameter cannot be fully exerted. The latter method of Japanese Patent Publication No. 3-68200 is an effective technique for small-scale tunnels, but since the lining material (corresponding to the lining plate) is a flat steel plate, it has a structurally large bending. Rigidity is difficult to obtain and it is difficult to apply it to large section tunnels.
There has been a problem that the inner peripheral surface of the steel sheet of the lining material needs to be coated to prevent corrosion.
【０００５】[0005]
【発明が解決しようとする課題】本発明は、これらの問
題点を解決し、二次覆工のパネル自身で止水性を確保
し、パネル厚さを薄くできるため現地への輸送、組立て
時の重量を大幅に軽減でき、さらにパネルの構造として
高い強度を発揮できる、複合パネルを用いるトンネル覆
工工法を提供することを目的とする。SUMMARY OF THE INVENTION The present invention solves these problems, and the panel of the secondary lining itself secures the waterproofness, and the thickness of the panel can be made thin, so that the panel can be transported and assembled at the site. An object of the present invention is to provide a tunnel lining method using a composite panel, which can significantly reduce the weight and can exhibit high strength as a panel structure.
【０００６】[0006]
【課題を解決するための手段】上記の目的を達成するた
めに、本発明の複合パネルを用いるトンネル覆工工法
は、トンネルの周方向に沿って一個、又は複数個の、鋼
板とコンクリートからなる複合パネルを用いるトンネル
覆工工法であって、該複合パネルの鋼板は該トンネルの
長手方向に波状に折曲げ、ずれ止め付きの屈曲鋼板と
し、該屈曲鋼板の内側はプレキャストコンクリートで形
成され、該屈曲鋼板の外側は前記の屈曲鋼板の現地組立
後に注入されたコンクリートにより形成することにより
構成される。In order to achieve the above object, a tunnel lining method using a composite panel of the present invention comprises one or a plurality of steel plates and concrete along the circumferential direction of the tunnel. A tunnel lining method using a composite panel, wherein the steel plate of the composite panel is bent in a wavy shape in the longitudinal direction of the tunnel to form a bent steel plate with slip prevention, and the inside of the bent steel plate is formed of precast concrete. The outside of the bent steel plate is formed by forming concrete poured after the on-site assembly of the bent steel plate.
【０００７】本発明における複合パネルは、トンネルの
周方向に沿って一個、又は複数個のものとして形成され
る。ここで、複合パネルの個数は、後述する屈曲鋼板の
内側にコンクリートをプレキャストした段階での製品を
単位として数える。複合パネルが複数個の場合、例えば
２〜４個が好ましく、これらの複合パネルはトンネルの
周方向に沿って相互に結合し、一体的に組み立られた状
態とする。複合パネルの幅は、トンネル長手方向に一定
で、輸送、作業性の点から１ｍ〜３．５ｍの範囲が好ま
しい。ここで、トンネルとは、トンネルを新設する場合
と既設のトンネルを補修する場合の両者のトンネルを指
す。新設トンネルの場合、複合パネルがトンネルの内周
の壁体を構成することになり、既設トンネルの場合、既
設トンネルの形状と相似な形状を有するよう複合パネル
により既設トンネルを内張りする。既設トンネルは補修
のため一部をはつる場合がある。複合パネルの構造は、
鋼板とコンクリートからなる。ここで、鋼板はトンネル
の長手方向に波状に折曲げた形状とした屈曲鋼板を用い
る。また、コンクリートは、複合パネルの現地での組立
て後の状態を基準にして、屈曲鋼板の内側は工場等でプ
レキャストにより形成するコンクリート層とし、屈曲鋼
板の外側はトンネル内での屈曲鋼板の現地組立後にコン
クリートを注入するコンクリート層とする。複合パネル
はかかる複合構造により、トンネル周方向のパネル剛性
（ＥＩS ）とコンクリート部の剛性（ＥＩC ）の和（Ｅ
ＩS ＋ＥＩC ）とし、パネル厚さの低減、軽量化を図っ
た。その結果、新設トンネルであれば、掘削断面積を減
少させ、既設トンネルであれば、現状の断面積を比較的
減少させずに補修が行える。また、複合パネルは、上述
したように屈曲鋼板の内側のみを工場にてコンクリート
をプレキャストするので、パネルのトンネル内への搬入
と、その組立ては、複合パネル完成時のほぼ半分の重量
により取扱いを行うことができ、作業負荷を軽減するこ
とができる。運搬時や架設時の重量制約がある場合で
も、パネルの分割数を減らすことができる。さらに、屈
曲鋼板の内側にプレキャストされたコンクリート版は、
外側のコンクリートの注入、打設時において、そのため
の型枠としての役割を兼用する。従って、外側のコンク
リートを注入、打設するに際し、別途にそのための型枠
の組立て、撤去を行う必要はなく、現場でのコンクリー
ト注入、打設のための型枠組立て、撤去の手間を大幅に
削減することができる。The composite panel of the present invention is formed as one or a plurality of pieces along the circumferential direction of the tunnel. Here, the number of composite panels is counted in units of products at the stage of precasting concrete on the inside of a bent steel plate described later. When a plurality of composite panels are provided, for example, 2 to 4 pieces are preferable, and these composite panels are joined together along the circumferential direction of the tunnel to be integrally assembled. The width of the composite panel is constant in the longitudinal direction of the tunnel and is preferably in the range of 1 m to 3.5 m from the viewpoint of transportation and workability. Here, the tunnel refers to both tunnels when a new tunnel is installed and when an existing tunnel is repaired. In the case of a new tunnel, the composite panel will form the inner wall of the tunnel, and in the case of an existing tunnel, the existing tunnel will be lined with a composite panel having a shape similar to that of the existing tunnel. The existing tunnel may be partially suspended for repair. The structure of the composite panel is
It consists of steel plate and concrete. Here, as the steel plate, a bent steel plate is used which is bent in a wavy shape in the longitudinal direction of the tunnel. In addition, the concrete is based on the condition after the assembly of the composite panel on site, the inside of the bent steel plate is the concrete layer formed by precasting in the factory, and the outside of the bent steel plate is the local assembly of the bent steel plate in the tunnel. The concrete layer is used to inject concrete later. Due to such a composite structure, the composite panel has a sum (E) of the panel rigidity (EI S ) in the tunnel circumferential direction and the rigidity (EI C ) of the concrete portion.
I S + EI C ) to reduce the panel thickness and reduce the weight. As a result, in the case of a new tunnel, the excavation cross-sectional area can be reduced, and in the case of an existing tunnel, repair can be performed without relatively reducing the current cross-sectional area. In addition, as for composite panels, concrete is precast at the factory only on the inside of the bent steel plates as described above, so loading and assembling the panels into the tunnel requires almost half the weight of the completed composite panels. It can be performed and the work load can be reduced. Even if there are weight restrictions during transportation and installation, the number of panels can be reduced. Furthermore, the concrete plate precast inside the bent steel plate,
It also serves as a formwork for pouring and placing concrete on the outside. Therefore, when pouring and placing the outside concrete, it is not necessary to separately assemble and remove the formwork for that purpose, and the work of pouring concrete on the site and assembling and removing the formwork for the placement is greatly done. Can be reduced.
【０００８】複合パネルの屈曲鋼板には、ずれ止めを固
定して設け、コンクリートとの一体化を図る。複合パネ
ルは、ずれ止め付きの屈曲鋼板を介在させた内側コンク
リートと外側コンクリートとによるサンドウィッチ構造
であり、コンクリート同士の打継ぎはないので、この点
での弱点はない。また、複合パネルを構成する屈曲鋼板
は、内外がコンクリートで被覆されているので、防食性
は十分確保され、またそれ自体止水体として機能する。The bent steel plate of the composite panel is fixedly provided with a slip stopper so as to be integrated with concrete. The composite panel has a sandwich structure of inner concrete and outer concrete with a bent steel plate with slip prevention interposed therebetween, and there is no joint between concretes, so there is no weak point in this respect. Further, since the bent steel plates forming the composite panel are coated with concrete on the inside and outside, sufficient corrosion resistance is ensured, and the bent steel plate itself functions as a water stop body.
【０００９】屈曲鋼板の外側コンクリートは高流動コン
クリートを使用すれば、バイプレーターなしで高品質の
コンクリートを得ることができる。If high fluidity concrete is used as the outer concrete of the bent steel plate, high quality concrete can be obtained without a vibrator.
【００１０】[0010]
【発明の実施の形態】本発明の実施の形態を図面を参照
して説明する。図１において、新設のトンネルの形状に
相応させて掘削された地山２を覆って、すでに施工して
ある一次覆工３の内周に、二次覆工のために、本発明の
複合パネルを用いるトンネル覆工工法を実施した形態の
例を示す。図１において、複合パネル１は所定幅を有す
る４個のパネルであり、各複合パネル１ａ、１ｂ、１
ｃ、１ｄはトンネルの周方向に沿って相互に結合して設
置されている。複合パネル１は、鋼板とコンクリートと
の複合構造であり、その構造を図２により説明する。図
２は現地への搬入前に工場等で、屈曲鋼板４の内側にプ
レキャストによりコンクリート５ａを打設した段階を示
す。この段階での複合パネル１を現地に搬入し、組立て
し後、屈曲鋼板４の外側にコンクリート５ｂを注入、打
設し、複合パネル１全体の製作を完結する。図２におい
て、トンネルの周方向に複合パネル１を結合するボルト
孔６ａ、トンネルの長手方向に複合パネル１を結合する
ボルト孔６ｂを示す。また、複合パネル１の側面には止
水材７を備え、本例の複合パネル１は、複合パネル１の
現地組立て後に屈曲鋼板４の外側にコンクリートを注入
するコンクリート注入孔８を有する。BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described with reference to the drawings. In FIG. 1, the composite panel of the present invention is provided on the inner circumference of the primary lining 3 which has already been constructed to cover the ground 2 excavated corresponding to the shape of the new tunnel, for the secondary lining. An example of an embodiment in which a tunnel lining method using is shown is shown. In FIG. 1, a composite panel 1 is four panels having a predetermined width, and each composite panel 1a, 1b, 1
c and 1d are connected to each other along the circumferential direction of the tunnel. The composite panel 1 has a composite structure of steel plate and concrete, and the structure will be described with reference to FIG. FIG. 2 shows a stage in which concrete 5a is placed on the inside of the bent steel plate 4 by precasting in a factory or the like before being brought into the field. At this stage, the composite panel 1 is brought into the field, assembled, and then concrete 5b is poured and placed on the outside of the bent steel plate 4 to complete the production of the composite panel 1 as a whole. FIG. 2 shows bolt holes 6a for connecting the composite panel 1 in the circumferential direction of the tunnel and bolt holes 6b for connecting the composite panel 1 in the longitudinal direction of the tunnel. Further, a water blocking material 7 is provided on a side surface of the composite panel 1, and the composite panel 1 of this example has a concrete injection hole 8 for injecting concrete to the outside of the bent steel plate 4 after the composite panel 1 is assembled in the field.
【００１１】図３は、屈曲鋼板の具体例を示す。屈曲鋼
板はトンネルの周方向において必要な剛性を発揮するよ
うに波ピッチＡ、波高Ｂ、板厚ｔを適宜定めて、鋼板を
トンネル長手方向に折り曲げる。図３（イ）、（ロ）、
（ハ）は鋼板を波状に折り曲げた形状を例示する。本発
明において、波状とはかかる形状、その類似形状を含め
た意味に使用する。屈曲鋼板として、そのために鋼板を
折り曲げて形成するか、或いは市販の床板、屋根、壁用
のデッキプレート、波板、折板から適宜選択して用いる
ことができる。図４は、屈曲鋼板４にずれ止め９を固定
した例を示す。図４（イ）はスタッドジベル９ａ、図４
（ロ）はフラットバー９ｂと溶接金網９ｃ、図４（ハ）
は屈曲鋼板４の内面の山部に立設した丸鋼９ｅに固定し
て配設した溶接金網９ｃと、屈曲鋼板４の外面の山部に
立設した丸鋼９ｅに固定して配設した格子状配鉄筋９ｄ
の例を示す。これらの屈曲鋼板４のずれ止め９は、屈曲
鋼板４と、コンクリート５ａ、５ｂとの一体化に寄与す
るだけでなく、強度部材として設計することができ、複
合パネル１を鋼板とコンクリートとの強固な合成構造と
して形成することができる。FIG. 3 shows a concrete example of the bent steel plate. For the bent steel plate, the wave pitch A, the wave height B, and the plate thickness t are appropriately determined so as to exert the required rigidity in the circumferential direction of the tunnel, and the steel plate is bent in the tunnel longitudinal direction. 3 (a), (b),
(C) exemplifies a shape obtained by bending a steel plate in a wave shape. In the present invention, the term “wavy” is used to mean such a shape and its similar shape. As the bent steel plate, a bent steel plate may be formed for that purpose, or a commercially available floor plate, roof, deck plate for wall, corrugated plate, or folded plate may be appropriately selected and used. FIG. 4 shows an example in which the shift stopper 9 is fixed to the bent steel plate 4. FIG. 4 (a) shows the stud dowel 9a, FIG.
(B) is a flat bar 9b and a welded wire net 9c, FIG.
Are welded wire nets 9c fixedly arranged on the round steel 9e standing on the mountain portion on the inner surface of the bent steel plate 4, and fixedly arranged on the round steel 9e standing on the mountain portion on the outer surface of the bent steel plate 4. Lattice reinforcing bar 9d
Here is an example. The shift stoppers 9 for the bent steel plates 4 not only contribute to the integration of the bent steel plates 4 and the concretes 5a and 5b, but can also be designed as a strength member, and the composite panel 1 can be made strong with the steel plates and the concrete. Can be formed as a simple synthetic structure.
【００１２】次に、本発明の複合パネルを用いる覆工工
法の施工手順の例を、図５〜図９の図面を参照して説明
する。 （１）図５は、本発明の複合パネルを用いる覆工工法の
実施に先行して完了している一次覆工３を示す。一次覆
工３は、吹付けコンクリート１０とアンカーボルト１１
とからなり、新設のトンネルの形状に相応させて掘削さ
れた地山２を覆って、地山２を内張りする。 （２）図６において、一次覆工が完了したトンネル内の
両側の側壁の下端部に、側壁部の複合パネル１ａ、１ｄ
を支持コンクリート１２により固定する。ここで、複合
パネル１ａ、１ｄはプレキャストによりコンクリートを
打設されている。本例では、複合パネル１ａ、１ｄを支
持するため地山２に対してアンカーボルト１１ａを使用
している。 （３）図７において、トンネル坑外にて、アーチ部を構
成する複合パネル１ｂと１ｃを接合して、パネル運搬・
設置用台車１３のアーチ台１４に搭載させ、パネル運搬
・設置用台車１３を軌道１５により走行させ、トンネル
坑内の設置位置に搬入する。この際、複合パネル１ｂ、
１ｃが、側壁部の複合パネル１ａ、１ｄと接触しないよ
う上下伸縮液圧ジャッキ１６により持ち上げた状態にし
て搬入する。 （４）図８において、複合パネル１ｂ、１ｃを、上下伸
縮用液圧ジャッキ１６により下降させ、また左右スライ
ド用液圧ジャッキ１７により位置調整して、側壁部の複
合パネル１ａ、１ｄと接合する位置に据え付ける。アー
チ部の複合パネル１ｂ、１ｃと側壁部の複合パネル１
ａ、１ｄ、またトンネルの長手方向に隣接するアーチ部
の複合パネル１ｂ、１ｃ同士をボルト孔６を介してボル
ト接合する。パネル運搬・設置用台車１３はアーチ台１
４を下降させ、アーチ部の複合パネル１ｂ、１ｃから離
脱させる。 （５）図９において、複合パネル１を全体として組立
て、設置し、一次覆工３と複合パネル１の屈曲鋼板４の
外側との間隙空間にコンクリート５ｂに注入、充填した
状態を示す。本例では、高流動コンクリートを使用す
る。高流動コンクリートとしては、例えば特開平６−２
０５７５２号等があり、市販のものを使用することがで
きる。屈曲鋼板４の内側プレキャストのコンクリート５
ａを打設した複合パネル１は、屈曲鋼板４の外側にコン
クリート５ｂに打設するための型枠の役割を果たす。こ
のコンクリート注入のためのコンクリート注入孔８、空
気抜き口１８を設けている。また、本例では、注入コン
クリートの重量を考慮し、複合パネル１の変形、損傷を
防止するため、アーチ部の複合パネル１ｂ、１ｃを地山
２に固定するアンカーボルト１１を設けている。複合パ
ネルの接合部、ロックボルト固定部、コンクリート注入
口１８等にモルタルを充填し、トンネル内面を平滑に仕
上げる。本例では、トンネルの壁面に沿って複合パネル
を用いるトンネル覆工工法について説明したが、トンネ
ルの壁面に加えて、複合パネルはトンネルの路面１９に
ついて用いてもよい。 （６）なお、既設トンネルの場合も、このように新設ト
ンネルの場合に準じて実施することができる。この場
合、複合パネル１を現地で組立て、設置して後、既設ト
ンネルと複合パネル１の屈曲鋼板４の外側との間隙空間
にコンクリート５ｂに注入、充填することになる。Next, an example of the construction procedure of the lining method using the composite panel of the present invention will be described with reference to the drawings of FIGS. (1) FIG. 5 shows the primary lining 3 completed prior to the implementation of the lining method using the composite panel of the present invention. Primary lining 3 is shotcrete 10 and anchor bolt 11
And lining the excavated natural ground 2 according to the shape of the new tunnel, and lining the natural ground 2. (2) In FIG. 6, the composite panels 1a and 1d of the side walls are provided at the lower ends of the side walls on both sides in the tunnel where the primary lining is completed.
Are fixed by the supporting concrete 12. Here, the composite panels 1a and 1d are made of concrete by precasting. In this example, the anchor bolt 11a is used for the ground 2 to support the composite panels 1a and 1d. (3) In FIG. 7, the composite panels 1b and 1c forming the arch part are joined outside the tunnel to transport the panel.
It is mounted on the arch platform 14 of the installation carriage 13 and the panel transportation / installation carriage 13 is caused to travel on the track 15 to be loaded into the installation position in the tunnel pit. At this time, the composite panel 1b,
1c is lifted by the vertical expansion / contraction hydraulic jack 16 so as not to come into contact with the composite panels 1a, 1d on the side wall and is carried in. (4) In FIG. 8, the composite panels 1b and 1c are lowered by the hydraulic jack 16 for vertical expansion and contraction, and the position is adjusted by the hydraulic jack 17 for left and right slides to join the composite panels 1a and 1d on the side wall. Install in position. Composite panels 1b, 1c for the arch and composite panel 1 for the sidewall
a, 1d, and the composite panels 1b, 1c of the arch portion adjacent to each other in the longitudinal direction of the tunnel are bolted to each other through the bolt holes 6. Panel carriage / installation truck 13 is arch platform 1
4 is lowered and separated from the composite panels 1b and 1c of the arch portion. (5) FIG. 9 shows a state in which the composite panel 1 is assembled and installed as a whole, and concrete 5b is poured and filled into the space between the primary lining 3 and the outside of the bent steel plate 4 of the composite panel 1. In this example, high fluidity concrete is used. As the high-fluidity concrete, for example, JP-A-6-2
No. 05752 and the like, and commercially available products can be used. Inside of bent steel plate 4 Precast concrete 5
The composite panel 1 in which a is cast serves as a form for placing concrete 5b on the outside of the bent steel plate 4. A concrete pouring hole 8 and an air vent 18 for pouring the concrete are provided. Further, in this example, in consideration of the weight of the poured concrete, anchor bolts 11 for fixing the composite panels 1b and 1c of the arch portion to the ground 2 are provided in order to prevent the composite panel 1 from being deformed or damaged. The joint part of the composite panel, the lock bolt fixing part, the concrete injection port 18 and the like are filled with mortar, and the inner surface of the tunnel is finished smooth. In this example, the tunnel lining method using the composite panel along the wall surface of the tunnel has been described, but the composite panel may be used for the road surface 19 of the tunnel in addition to the wall surface of the tunnel. (6) Incidentally, in the case of the existing tunnel, it can be carried out according to the case of the new tunnel in this way. In this case, after the composite panel 1 is assembled and installed on site, the concrete 5b is poured and filled into the space between the existing tunnel and the outside of the bent steel plate 4 of the composite panel 1.
【００１３】[0013]
【実施例】本発明につき、新設トンネルに実施した場合
を上述の図面により具体例を説明する。図１において、
二次覆工は、トンネル内の両側の支持コンクリート１２
の上面を基準として、二次覆工の外周の両端間の幅は１
８ｍ、外周の頂部の高さ９ｍである。複合パネル１の内
外のコンクリート５ａ、５ｂの表面間の厚さは２００ｍ
ｍ、コンクリート５ａ、５ｂ間中央に屈曲鋼板４を介在
させる。屈曲鋼板４は図３（イ）のタイプのものを使用
し、波ピッチＡ１３５ｍｍ、波高Ｂ５７．５ｍｍ、板厚
ｔ７ｍｍである。ずれ止めは、図４（イ）のタイプのも
のを使用した。かかる仕様により、工法を実施し、二次
覆工の厚さを約２／３に軽減し、軽量化により施工性を
向上させ、工期を大幅に短縮することができた。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A concrete example of the present invention implemented in a new tunnel will be described with reference to the above-mentioned drawings. In FIG.
The secondary lining is the supporting concrete 12 on both sides in the tunnel.
The width between both ends of the outer circumference of the secondary lining is 1
The height is 8 m and the height of the top of the outer circumference is 9 m. The thickness between the surfaces of the concrete 5a and 5b inside and outside the composite panel 1 is 200 m.
The bent steel plate 4 is interposed in the center between the concrete 5a and the concrete 5b. As the bent steel plate 4, the one of the type shown in FIG. 3A is used, and the wave pitch is A135 mm, the wave height B is 57.5 mm, and the plate thickness is t7 mm. As the stopper, the type shown in FIG. 4 (a) was used. With such specifications, the construction method was implemented, the thickness of the secondary lining was reduced to about 2/3, the workability was improved due to the weight reduction, and the construction period could be shortened significantly.
【００１４】[0014]
【発明の効果】本発明の複合パネルを用いるトンネル覆
工工法によれば、屈曲鋼板とコンクリートの複合構造か
らなる複合パネルを用いるため、パネル厚さを薄くでき
る。その結果、トンネルに使用した場合に、その分トン
ネル掘削断面を小さくでき、掘削工事、及び掘削土処分
等において経済的で、工期短縮できる。トンネルの有効
空間を有利に確保することができる。また、複合パネル
は半プレキャストの状態でトンネル内に搬入、組立てす
るため軽量となり、取付け作業が容易であるばかりでな
く、現場での屈曲鋼板の外側へのコンクリート打設に際
し、型枠として機能する。そのため、別途に型枠を用意
し、設置する必要がない。複合パネルは、ずれ止め付き
の屈曲鋼板とコンクリートとの複合構造であるため、鋼
板とコンクリートとの一体的で強固な構造体として形成
することができる。更に、複合パネルを構成する屈曲鋼
板で確実な止水性が得られる。また、屈曲鋼板は内外の
コンクリートで覆われているため腐蝕の心配がない。According to the tunnel lining method using the composite panel of the present invention, since the composite panel having the composite structure of bent steel plate and concrete is used, the panel thickness can be reduced. As a result, when used in a tunnel, the tunnel excavation cross section can be made smaller by that much, which is economical in excavation work and excavated soil disposal, and the construction period can be shortened. The effective space of the tunnel can be advantageously secured. In addition, the composite panel is lightweight because it is loaded and assembled in the tunnel in the state of semi-precast, and not only is the installation work easy, but it also functions as a formwork when placing concrete on the outside of bent steel plates on site. . Therefore, it is not necessary to separately prepare and install the formwork. Since the composite panel has a composite structure of the bent steel plate with slip prevention and concrete, it can be formed as an integral and strong structure of the steel plate and concrete. Further, the bent steel plates that compose the composite panel provide reliable waterproofing. Moreover, since the bent steel plate is covered with the concrete inside and outside, there is no fear of corrosion.
【図１】本発明の複合パネルを用いるトンネル覆工工法
により実施された二次覆工の例を示す図である。FIG. 1 is a diagram showing an example of secondary lining performed by a tunnel lining method using the composite panel of the present invention.
【図２】本発明の複合パネルの例を示す図である。FIG. 2 is a diagram showing an example of a composite panel of the present invention.
【図３】本発明の複合パネルの構成要素である屈曲鋼板
の例を示す図である。FIG. 3 is a diagram showing an example of a bent steel plate which is a constituent element of the composite panel of the present invention.
【図４】本発明の複合パネルの屈曲鋼板に、ずれ止めを
固定した例を示す図である。複合パネルの屈曲鋼板の内
側にプレキャストコンクリートを打設して内張りし、現
地への搬入前における複合パネルの状態を示す図であ
る。FIG. 4 is a view showing an example in which a shift stopper is fixed to a bent steel plate of the composite panel of the present invention. It is a figure which shows the state of the composite panel before pouring in precast concrete inside the bending steel plate of a composite panel, lining it, and carrying in to the field.
【図５】図５〜図９は、本発明の複合パネルを用いるト
ンネル覆工工法の実施の手順の例を説明する図である。
図５は本発明の実施に先行して施工した一次覆工の例を
示す。FIG. 5 to FIG. 9 are views for explaining an example of a procedure for carrying out a tunnel lining method using the composite panel of the present invention.
FIG. 5 shows an example of a primary lining constructed prior to the implementation of the present invention.
【図６】図６は側壁部の複合パネルを固定した例を示すFIG. 6 shows an example in which a composite panel for a side wall is fixed.
【図７】図７はアーチ部の複合パネルをトンネルの坑内
に搬入した状態を示す図である。FIG. 7 is a diagram showing a state in which the composite panel of the arch portion is carried into the tunnel mine.
【図８】図８は側壁部の複合パネルとアーチ部の複合パ
ネルとを接合した状態を示す図である。FIG. 8 is a diagram showing a state in which the composite panel of the side wall portion and the composite panel of the arch portion are joined together.
【図９】図９は複合パネルの組立てを完了し、二次覆工
を完成した状態を示す図である。FIG. 9 is a diagram showing a state in which the assembly of the composite panel is completed and the secondary lining is completed.
【図１０】従来の技術を説明する図である。FIG. 10 is a diagram illustrating a conventional technique.
【図１１】別の従来の技術を説明する図である。FIG. 11 is a diagram illustrating another conventional technique.
１ 複合パネル ２ 地山 ３ 一次覆工 ４ 屈曲鋼板 ５ コンクリート ６ ボルト孔 ７ 止水材 ８ コンクリート注入孔 ９ ずれ止め １０ 吹付けコンクリート １１ アンカーボルト １２ 支持コンクリート １３ パネル運搬・設置用台車 １４ アーチ台 １５ 軌道 １６ 上下伸縮用液圧ジャッキ １７ 左右スライド用ジャッキ １８ 空気抜き口 １９ 路面 ２０ 一次覆工（セグメント） ２１ プレハブ版（プレキャスト版） ２２ 止水材 ２３ 内張材 ２４ グラウト材 1 Composite Panel 2 Ground 3 Primary Lining 4 Bending Steel Plate 5 Concrete 6 Bolt Hole 7 Water Stopper 8 Concrete Injection Hole 9 Concrete Stopper 10 Spraying Concrete 11 Anchor Bolt 12 Supporting Concrete 13 Panel Transport / Installation Cart 14 Arch Platform 15 Orbit 16 Hydraulic jack for vertical expansion / contraction 17 Jack for left / right sliding 18 Air vent 19 Road surface 20 Primary lining (segment) 21 Prefabricated version (precast version) 22 Water blocking material 23 Lining material 24 Grout material
───────────────────────────────────────────────────── フロントページの続き (72)発明者 郡司 盛 東京都千代田区大手町２−６−３ 新日本 製鐵株式会社内 (72)発明者 竹内 貴司 東京都千代田区大手町２−６−３ 新日本 製鐵株式会社内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Mori Gunji 2-6-3 Otemachi, Chiyoda-ku, Tokyo Within Nippon Steel Corporation (72) Inventor Takashi Takeuchi 2-6-3 Otemachi, Chiyoda-ku, Tokyo Within Nippon Steel Corporation
Claims (3)
数個の、鋼板とコンクリートからなる複合パネルを用い
るトンネル覆工工法であって、該複合パネルの鋼板は該
トンネルの長手方向に波状に折曲げ、ずれ止め付きの屈
曲鋼板とし、該屈曲鋼板の内側はプレキャストコンクリ
ートで形成され、該屈曲鋼板の外側は前記の屈曲鋼板の
現地組立後に注入されたコンクリートにより形成するこ
とを特徴とする複合パネルを用いるトンネル覆工工法。1. A tunnel lining method using one or a plurality of composite panels made of steel plate and concrete along the circumferential direction of the tunnel, wherein the steel plates of the composite panel are wavy in the longitudinal direction of the tunnel. Bending and slip-proof bent steel plate, the inside of the bent steel plate is formed of precast concrete, and the outside of the bent steel plate is formed by concrete injected after the on-site assembly of the bent steel plate. Tunnel lining method using panels.
流動コンクリートを用いることを特徴とする請求項１記
載の複合パネルを用いるトンネル覆工工法。2. The tunnel lining method using a composite panel according to claim 1, wherein the concrete to be poured after the on-site assembly is high-fluidity concrete.
ネルの補修のための請求項１、又は請求項２記載の複合
パネルを用いるトンネル覆工工法。3. A tunnel lining method using the composite panel according to claim 1 or 2 for secondary lining of a new tunnel or repair of an existing tunnel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP09590896A JP3321697B2 (en) | 1996-03-27 | 1996-03-27 | Tunnel lining method using composite panels |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP09590896A JP3321697B2 (en) | 1996-03-27 | 1996-03-27 | Tunnel lining method using composite panels |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09268888A true JPH09268888A (en) | 1997-10-14 |
| JP3321697B2 JP3321697B2 (en) | 2002-09-03 |
Family
ID=14150400
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP09590896A Expired - Lifetime JP3321697B2 (en) | 1996-03-27 | 1996-03-27 | Tunnel lining method using composite panels |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3321697B2 (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001323797A (en) * | 2000-05-12 | 2001-11-22 | Yoshiji Matsumoto | Tunnel lining reinforcing structure using segment with non-uniform section, and method for constructing the same |
| KR20030096697A (en) * | 2002-06-17 | 2003-12-31 | 허정원 | A tunnel lining structure system using curved corrugated steel plates and consrution method therof |
| JP2006225906A (en) * | 2005-02-16 | 2006-08-31 | Public Works Research Institute | Method for reinforcing tunnel lining concrete |
| KR100894118B1 (en) * | 2007-07-19 | 2009-04-20 | 한국건설기술연구원 | Side mold for tunnel lining form and manufacturing method thereof |
| JP2010090607A (en) * | 2008-10-08 | 2010-04-22 | Taisei Corp | Method for constructing tunnel and structure of the tunnel |
| JP2011184934A (en) * | 2010-03-08 | 2011-09-22 | Shimizu Corp | Method of lining of tunnel |
| JP6043454B1 (en) * | 2016-06-27 | 2016-12-14 | 鹿島建設株式会社 | Construction method of underground structure and underground structure |
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| CN112983541A (en) * | 2021-04-01 | 2021-06-18 | 中国人民解放军军事科学院国防工程研究院工程防护研究所 | Repair and treatment method suitable for deep tunnel inverted arch damage |
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1996
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001323797A (en) * | 2000-05-12 | 2001-11-22 | Yoshiji Matsumoto | Tunnel lining reinforcing structure using segment with non-uniform section, and method for constructing the same |
| KR20030096697A (en) * | 2002-06-17 | 2003-12-31 | 허정원 | A tunnel lining structure system using curved corrugated steel plates and consrution method therof |
| JP2006225906A (en) * | 2005-02-16 | 2006-08-31 | Public Works Research Institute | Method for reinforcing tunnel lining concrete |
| KR100894118B1 (en) * | 2007-07-19 | 2009-04-20 | 한국건설기술연구원 | Side mold for tunnel lining form and manufacturing method thereof |
| JP2010090607A (en) * | 2008-10-08 | 2010-04-22 | Taisei Corp | Method for constructing tunnel and structure of the tunnel |
| JP2011184934A (en) * | 2010-03-08 | 2011-09-22 | Shimizu Corp | Method of lining of tunnel |
| JP6043454B1 (en) * | 2016-06-27 | 2016-12-14 | 鹿島建設株式会社 | Construction method of underground structure and underground structure |
| CN106948846A (en) * | 2017-05-10 | 2017-07-14 | 贵阳市城市轨道交通有限公司 | Shallow embedding Karst Tunnel gushing water method of disposal |
| CN108266206A (en) * | 2018-01-17 | 2018-07-10 | 招商局重庆交通科研设计院有限公司 | A kind of bored tunnel corrugated steel-mixed mud composite lining structure |
| CN108915733A (en) * | 2018-08-30 | 2018-11-30 | 中国水利水电第十四工程局有限公司 | A kind of steel pipe chip architecture and preparation method thereof being applicable in vacuum chuck absorption |
| CN108915733B (en) * | 2018-08-30 | 2023-06-09 | 中国水利水电第十四工程局有限公司 | Steel pipe sheet structure suitable for vacuum chuck adsorption and manufacturing method thereof |
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| CN112983541A (en) * | 2021-04-01 | 2021-06-18 | 中国人民解放军军事科学院国防工程研究院工程防护研究所 | Repair and treatment method suitable for deep tunnel inverted arch damage |
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