JP2002295187A - Construction method and device for repairing inner wall of tunnel, and auxiliary fitting for suspension - Google Patents
Construction method and device for repairing inner wall of tunnel, and auxiliary fitting for suspensionInfo
- Publication number
- JP2002295187A JP2002295187A JP2001099427A JP2001099427A JP2002295187A JP 2002295187 A JP2002295187 A JP 2002295187A JP 2001099427 A JP2001099427 A JP 2001099427A JP 2001099427 A JP2001099427 A JP 2001099427A JP 2002295187 A JP2002295187 A JP 2002295187A
- Authority
- JP
- Japan
- Prior art keywords
- tunnel
- strip
- wall
- shaped wall
- shaped
- 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.)
- Pending
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、トンネルの内壁に
板状の壁材を取付けてコンクリートの脱落を防止するト
ンネルの内壁の補修工法、補修装置及び吊下げ補助金具
に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for repairing an inner wall of a tunnel, a repairing device, and a hanging auxiliary fitting for attaching a plate-like wall material to the inner wall of the tunnel to prevent concrete from falling off.
【０００２】[0002]
【従来の技術】施工されてから長期間が経過したトンネ
ルの内部では、例えば、内壁を構成するコンクリートの
劣化による亀裂や崩落が多発している。従来、国道や幹
線道路が通過するトンネルの内壁の補修は、高所作業車
等を用いて目視点検を行い、異常箇所が発見された場合
は、その程度に応じて補修を行っていた。例えば、部分
的な異常が発生した場合は、亀裂発生部への樹脂注入や
部分はつり補修を行い、異常が広範囲に亘る場合には、
トンネル内の壁面にアンカーボルト等の固定部材を用い
て複数の鉄板を整列配置しながら固定し、その後にトン
ネル内の壁面と鉄板の間にコンクリート圧入を実施して
いた。2. Description of the Related Art In a tunnel where a long period of time has passed since the construction, cracks and collapses have frequently occurred due to, for example, deterioration of concrete constituting an inner wall. Conventionally, the repair of the inner wall of a tunnel through which a national road or an arterial road passes has been carried out by visual inspection using an aerial work vehicle or the like, and when an abnormal spot is found, the repair is performed according to the degree. For example, when a partial abnormality occurs, the resin is injected into the crack initiation part and the part is repaired. If the abnormality is widespread,
A plurality of iron plates were aligned and fixed to the wall surface in the tunnel using anchoring bolts or other fixing members, and then concrete was pressed between the wall surface in the tunnel and the iron plate.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、前記従
来のトンネルの内壁の補修工法は、トンネルの内部がア
ーチ状に形成されているため、複数の鉄板を位置を合わ
せながら１枚ずつ取付けるには長時間を要し、作業性が
悪かった。また、トンネルの内壁の中央上部に鉄板を取
付ける場合には、作業用の架台をトンネル内の道路の中
央線を跨いで構築しなければならず、作業中には、トン
ネル内の道路を全面通行止めにする必要があった。この
ような作業性を改善するため、複数の鉄板を接続した短
冊状壁材を予め形成して取付け回数を減らすことも考え
られる。この場合、トンネルの形状に合わせてアーチ状
に屈曲させた重量のある短冊状壁材を、該短冊状壁材の
半径方向内側から保持してトンネルの内壁に近接させ取
付ける必要があるため、短冊状壁材を保持する吊下げ補
助金具は、短冊状壁材の内側から強固に固定でき、しか
も内側から取外すことができる構造にしなければならな
かった。本発明はかかる事情に鑑みてなされたもので、
多数の短冊状壁材を短時間で効率よく取付けることがで
き、他の車線の車両の走行を妨げることなく作業を行う
ことができるトンネルの内壁の補修工法、補修装置及び
吊下げ補助金具を提供することを目的とする。However, according to the conventional method for repairing the inner wall of a tunnel, since the inside of the tunnel is formed in an arch shape, it is difficult to install a plurality of iron plates one by one while aligning the positions. It took time and workability was bad. If an iron plate is to be attached to the upper center of the inner wall of the tunnel, a work platform must be built across the center line of the road in the tunnel. I needed to. In order to improve such workability, it is conceivable to reduce the number of attachments by forming a strip-shaped wall member in which a plurality of iron plates are connected in advance. In this case, it is necessary to hold a heavy strip-shaped wall material bent in an arch shape in accordance with the shape of the tunnel from the radially inner side of the strip-shaped wall material and to attach the strip-shaped wall material close to the inner wall of the tunnel. The hanging auxiliary fittings for holding the wall-shaped member must be firmly fixed from the inside of the strip-shaped wall member, and must be detachable from the inside. The present invention has been made in view of such circumstances,
Provided is a method for repairing a tunnel inner wall, a repair device, and a hanging auxiliary bracket, which can efficiently attach a large number of strip-shaped wall materials in a short time and can perform work without hindering traveling of a vehicle in another lane. The purpose is to do.
【０００４】[0004]
【課題を解決するための手段】前記目的に沿う本発明に
係るトンネルの内壁の補修工法は、予め用意された複数
の短冊状壁材の上部を、搬送車両に設けられた昇降可能
な作業架台のアーチ状固定部にトンネルの長手方向に沿
って並べて取付けると共に、前記短冊状壁材の下端部を
前記搬送車両の一側にそれぞれ掛止させて支持する第１
工程と、複数の前記短冊状壁材を搭載した前記搬送車両
を、前記作業架台を下降させた状態で前記トンネル内の
所定位置に進入させ、前記作業架台を上昇させて前記短
冊状壁材をそれぞれ前記トンネルの内壁にアンカー部材
を用いて固定する第２工程とを有する。According to the present invention, there is provided a method for repairing an inner wall of a tunnel according to the present invention, comprising: Along with attaching to the arch-shaped fixing portion along the longitudinal direction of the tunnel, the lower end portion of the strip-shaped wall material is supported by hanging on one side of the transport vehicle.
Step, the transport vehicle equipped with a plurality of the strip-shaped wall material, enter the predetermined position in the tunnel in a state where the work gantry is lowered, raise the work gantry, the strip-shaped wall material A second step of fixing to the inner wall of the tunnel using an anchor member.
【０００５】短冊状壁材には、例えば、耐食性のあるス
テンレス板やめっき鋼板等の金属板材を接続したものを
用いるが、長尺の板材をそのまま使用することも可能で
ある。接続して使用する場合には、例えば、ボルト及び
ナットによる締結固定、溶接、又は接着により接続する
ことができる。短冊状壁材は、予めアーチ状のトンネル
の形状に合わせて曲げ加工を施しておくことが好ましい
が、弾性範囲内でトンネルの内壁の形状に合わせて屈曲
可能な薄い板材を用いるのであれば、平板状に形成して
使用することも可能である。アーチ状固定部は、アーチ
状に形成されたトンネルの内壁の少なくとも一部と実質
的に同一形状に形成されている。すなわち、アーチ状固
定部に支持された短冊状壁材は、トンネルの内壁を周方
向に複数に分割した部分にそれぞれ取付けることがで
き、例えば、トンネル内を通過する道路の車線の数に合
わせて分割することができる。かかる構成によって、工
事中の通行止めを車線ごとに行うことができる。[0005] As the strip-shaped wall material, for example, a metal plate material such as a corrosion-resistant stainless steel plate or a plated steel plate is used, but a long plate material can be used as it is. In the case of connection and use, for example, connection can be made by fastening and fixing with bolts and nuts, welding, or adhesion. The strip-shaped wall material is preferably subjected to bending in advance according to the shape of the arch-shaped tunnel, but if a thin plate material that can be bent according to the shape of the inner wall of the tunnel within the elastic range is used, It is also possible to form and use a flat plate. The arch-shaped fixing portion has substantially the same shape as at least a part of the inner wall of the arch-shaped tunnel. In other words, the strip-shaped wall material supported by the arch-shaped fixing portion can be attached to each of a plurality of portions dividing the inner wall of the tunnel in the circumferential direction, for example, according to the number of lanes of the road passing through the tunnel. Can be split. With this configuration, it is possible to close the road during construction for each lane.
【０００６】第１工程では、短冊状壁材が、アーチ状固
定部に上部を支持されると共に下端部を搬送車両の一側
部に掛止させて支持されているので、輸送中に端部が揺
動することを防止して安全性を向上させることができ
る。第２工程では、搬送車両が作業架台を下降させた状
態でトンネル内に進入するので、短冊状壁材がトンネル
の内壁に接触することを防止しながら迅速に移動するこ
とができる。作業架台を上昇させると、短冊状壁材はト
ンネルの内壁の上部に近接する。そして、トンネルの内
壁の上部に近接した短冊状壁材の上部をアンカーボルト
やケミカルアンカー等のアンカー部材で固定して短冊状
壁材の荷重を保持し、次いで、短冊状壁材の中間部及び
下部をトンネルの内壁に固定する。かかる構成によっ
て、多数の短冊状壁材をトンネルの内壁に短時間で効率
よく取付けることができ、その後のモルタル圧入等の作
業を迅速に行い、補修工期を大幅に短縮することができ
る。[0006] In the first step, the strip-shaped wall material is supported at its upper portion by the arch-shaped fixing portion and at its lower end portion by being hooked to one side of the transport vehicle. Can be prevented from swinging and safety can be improved. In the second step, since the transport vehicle enters the tunnel with the work platform lowered, it is possible to move quickly while preventing the strip-shaped wall material from contacting the inner wall of the tunnel. When the work platform is raised, the strip-shaped wall material approaches the upper part of the inner wall of the tunnel. Then, the upper portion of the strip-shaped wall material adjacent to the upper portion of the inner wall of the tunnel is fixed with an anchor member such as an anchor bolt or a chemical anchor to hold the load of the strip-shaped wall material, and then the middle portion of the strip-shaped wall material and The lower part is fixed to the inner wall of the tunnel. With such a configuration, a large number of strip-shaped wall materials can be efficiently attached to the inner wall of the tunnel in a short time, and subsequent work such as mortar press-fitting can be performed quickly, thereby greatly shortening the repair period.
【０００７】ここで、前記作業架台に前記搬送車両の他
側に前記トンネル内の中央線を越えて突出可能な拡張台
部を設け、前記短冊状壁材を、前記トンネルの内壁の周
方向の長さの半分以上の長さに設け、前記作業架台に、
周方向位置を調整可能なワイヤロープを介して支持させ
ることも可能である。拡張台部は、例えば、作業架台に
折り畳んだ状態で取付けることができ、また、作業架台
にスライド可能に設けておくこともでき、さらには、作
業架台に着脱可能に設けておくことも可能である。搬送
車両の他側に拡張台部を設けるので、拡張台部に短冊状
壁材の上部を支持させることができる。作業架台を上昇
させたときには、拡張台部は、搬送車両が走行する車線
に隣接する他の車線の上方位置に配置されるので、他の
車線の車両の走行を妨げることなく、該他の車線の上方
位置にあるトンネルの内壁に短冊状壁材を取付けること
が可能になる。[0007] Here, the work frame is provided on the other side of the transporting vehicle with an extension base that can protrude beyond the center line in the tunnel, and the strip-shaped wall member is provided in the circumferential direction of the inner wall of the tunnel. Provided at least half the length, on the work platform,
It is also possible to support via a wire rope whose circumferential position can be adjusted. The extension base can be attached to the work base in a folded state, for example, and can be provided so as to be slidable on the work base, and further can be provided detachably on the work base. is there. Since the extension platform is provided on the other side of the transport vehicle, the extension platform can support the upper portion of the strip-shaped wall material. When the work platform is raised, the extension platform is disposed above the other lane adjacent to the lane in which the transport vehicle travels, so that the other lane is not obstructed by the vehicle in the other lane. A strip-shaped wall material can be attached to the inner wall of the tunnel located above the vehicle.
【０００８】また、短冊状壁材をワイヤロープで支持し
ているので、短冊状壁材をワイヤロープで引張り操作す
ることによって、短冊状壁材のトンネルの内壁に対する
周方向位置を調整することができ、また、短冊状壁材の
トンネルの長手方向の位置を、搬送車両の前進又は後退
によって調整できるので、大型の短冊状壁材の取付けを
迅速に行うことができる。なお、各短冊状壁材は、それ
ぞれ独立して周方向に引張って位置を調整することがで
き、短冊状壁材の位置合わせ時間をさらに短縮すること
ができる。Further, since the strip-shaped wall material is supported by the wire rope, the circumferential position of the strip-shaped wall material with respect to the inner wall of the tunnel can be adjusted by pulling the strip-shaped wall material with the wire rope. In addition, the position of the strip-shaped wall material in the longitudinal direction of the tunnel can be adjusted by moving the transport vehicle forward or backward, so that a large-sized strip-shaped wall material can be quickly mounted. In addition, each strip-shaped wall member can be independently pulled in the circumferential direction to adjust the position, and the positioning time of the strip-shaped wall member can be further reduced.
【０００９】前記目的に沿う本発明に係るトンネルの内
壁の補修装置は、複数の短冊状壁材を支持してトンネル
内を輸送可能な搬送車両と、該搬送車両に設けられた作
業架台と、該作業架台の上部に設けられ、複数の前記短
冊状壁材の上部を支持するアーチ状固定部と、前記作業
架台の一側に設けられ、前記短冊状壁材の下部を一側に
押圧して前記トンネルの内壁に近接させる進退手段と、
前記作業架台に設けられ、前記搬送車両の他側に突出可
能な拡張台部と、前記作業架台の下部に設けられ、前記
短冊状壁材を上昇させて該短冊状壁材の上部を前記トン
ネルの内壁に近接させる昇降手段と、前記作業架台に設
けられ、前記短冊状壁材の下部を吊下げ支持する補助支
持部材と、前記搬送車両の一側部に設けられて前記短冊
状壁材の下端部をそれぞれ掛止するフック部材とを有
し、複数の前記短冊状壁材を前記トンネルの内壁に近接
させてそれぞれ取付ける。作業架台には、昇降手段と、
進退手段が設けられているので、短冊状壁材の上部と下
部をそれぞれ簡単にトンネルの内壁に近接させることが
でき、短冊状壁材のトンネルの内壁への固定を、容易且
つ迅速に行うことができる。また、拡張台部が設けられ
ているので、他の車線の車両の走行を妨げることなく、
他の車線の上方位置のトンネルの内壁の補修作業を行う
ことができる。According to the present invention, there is provided an apparatus for repairing an inner wall of a tunnel according to the present invention, comprising: a transport vehicle capable of supporting a plurality of strip-shaped wall members and transporting the inside of the tunnel; a work platform provided on the transport vehicle; An arch-shaped fixing portion provided on an upper portion of the work platform and supporting an upper portion of the plurality of strip-shaped wall materials, and provided on one side of the work platform and pressing a lower portion of the strip-shaped wall material to one side. Advancing / retreating means for approaching the inner wall of the tunnel by
An extension base portion provided on the work platform and protruding to the other side of the transport vehicle; and an extension base portion provided at a lower portion of the work platform, wherein the strip-shaped wall material is raised and the upper portion of the strip-shaped wall material is tunneled. Lifting and lowering means to be brought close to the inner wall, an auxiliary support member provided on the work platform, for suspending and supporting a lower portion of the strip-shaped wall material, and an auxiliary support member provided on one side of the transporting vehicle. A hook member for hooking a lower end of each of the plurality of strip-shaped wall members, and each of the plurality of strip-shaped wall members is attached in proximity to the inner wall of the tunnel. The work platform has lifting means,
Since the reciprocating means is provided, the upper and lower portions of the strip-shaped wall material can be easily brought close to the inner wall of the tunnel, and the strip-shaped wall material can be easily and quickly fixed to the inner wall of the tunnel. Can be. In addition, since the extension base is provided, without hindering the traveling of vehicles in other lanes,
Repair work can be performed on the inner wall of the tunnel above another lane.
【００１０】前記目的に沿う本発明に係る吊下げ補助金
具は、重量の大きい金属板の所定位置に設けられて該金
属板を支持し、該金属板の表側から取外し可能な吊下げ
補助金具であって、前記金属板の所定位置に形成された
貫通孔をその頭部が挿通可能なボルトと、縦方向全長さ
が前記貫通孔の直径より長く、幅方向全長さが前記貫通
孔の直径より短く、使用にあっては前記金属板の裏側に
配置され、前記ボルトの雄ねじ部が挿通可能で該ボルト
の頭部が挿通不可能な長円形のボルト孔部を備え、更に
裏側には挿通した前記ボルトの頭部回り止め部が設けら
れた裏当て金と、使用にあっては前記金属板の表側に配
置され、前記ボルトに外嵌して用いられ、前記貫通孔に
被さる座金部材と、ワイヤロープを固定可能な掛止部を
備え、前記金属板の表側から前記ボルトに螺合可能なナ
ット部材とを有する。A hanging auxiliary fitting according to the present invention, which meets the above object, is provided at a predetermined position on a heavy metal plate, supports the metal plate, and is detachable from the front side of the metal plate. A bolt whose head can be inserted through a through hole formed at a predetermined position of the metal plate, and a total length in the vertical direction is longer than a diameter of the through hole, and a total length in the width direction is larger than the diameter of the through hole. It is provided with an oval bolt hole that is short and is located on the back side of the metal plate for use, the male screw part of the bolt can be inserted, and the head of the bolt cannot be inserted, and further inserted on the back side. A backing metal provided with a head rotation preventing portion of the bolt, and a washer member which is disposed on the front side of the metal plate in use and is fitted to the bolt and used to cover the through-hole, The metal plate includes a hook portion to which a wire rope can be fixed. And a screwable nut member from the front side to the bolt.
【００１１】ここで、重量の大きいとは、片手で持ち上
げることができない程度の重量をいい、長円形とは、楕
円形、俵形の他、矩形の長辺の両端部をそれぞれ半円状
に結んだ形状のスリット孔も含む。また、縦方向全長さ
とは、挿通するボルトの軸心に直交する平面上における
最大長さをいい、幅方向全長さとは、挿通するボルトの
軸心に直交する平面上における最小長さをいう。吊下げ
補助金具を取外すときには、まず、ナット部材を回転さ
せる。ボルトの頭部は、裏当て金の頭部回り止め部に掛
止しているので、ナット部材と一緒に回転することが防
止され、簡単に螺合部分を緩めることができる。ボルト
とナット部材の螺合部分を緩めたときには、長円形のボ
ルト孔部を有して雄ねじ部に外挿された裏当て金が、軸
方向に揺動可能になるので、裏当て金を金属板の貫通孔
に挿通して表側に移動させ、吊下げ補助金具を表側から
取外すことができる。かかる構成によって、例えば、ト
ンネルの内壁に取付ける短冊状壁材を金属板で構成した
ときには、短冊状壁材を、表側、すなわち半径方向内側
から取付けた吊下げ補助金具を介してワイヤロープで保
持し、短冊状壁材をトンネルの内壁に近接させアンカー
部材で固定した後に、表側から取外すことができる。Here, "heavy weight" means a weight that cannot be lifted by one hand, and "oval" means an elliptical shape, a bale shape, and a semicircular shape at both ends of the long side of the rectangle. Includes slit holes with a tied shape. The total length in the vertical direction refers to the maximum length on a plane perpendicular to the axis of the inserted bolt, and the total length in the width direction refers to the minimum length on a plane perpendicular to the axis of the inserted bolt. When removing the hanging auxiliary fitting, first, the nut member is rotated. Since the head of the bolt is hung on the head rotation preventing portion of the backing metal, it is prevented from rotating together with the nut member, and the screwed portion can be easily loosened. When the threaded portion of the bolt and nut member is loosened, the backing metal that has an oval bolt hole and is externally inserted into the male screw part can swing in the axial direction. The hanging auxiliary fitting can be removed from the front side by being inserted into the through hole of the plate and moved to the front side. With this configuration, for example, when the strip-shaped wall material to be attached to the inner wall of the tunnel is formed of a metal plate, the strip-shaped wall material is held by a wire rope via a hanging auxiliary fitting attached from the front side, that is, from the radially inner side. After the strip-shaped wall material is brought close to the inner wall of the tunnel and fixed by the anchor member, it can be removed from the front side.
【００１２】[0012]
【発明の実施の形態】続いて、添付した図面を参照しつ
つ、本発明を具体化した実施の形態について説明し、本
発明の理解に供する。図１に示すように、本発明の一実
施の形態に係るトンネルの内壁の補修装置１０は、搬送
車両１１と、搬送車両１１の荷台１２上に設けられた作
業架台１３と、作業架台１３の上部に設けられ、複数の
短冊状壁材１４の上部を支持するアーチ状固定部１７
と、搬送車両１１の荷台１２の一側部に設けられて短冊
状壁材１４の下端部１５をそれぞれ掛止するフック部材
１６とを有している。以下、詳しく説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described with reference to the accompanying drawings to provide an understanding of the present invention. As shown in FIG. 1, a repair device 10 for an inner wall of a tunnel according to an embodiment of the present invention includes a transport vehicle 11, a work platform 13 provided on a carrier 12 of the transport vehicle 11, and a work platform 13. An arch-shaped fixing portion 17 provided on an upper portion and supporting an upper portion of the plurality of strip-shaped wall members 14.
And a hook member 16 provided on one side of the loading platform 12 of the transport vehicle 11 to hook the lower end 15 of the strip-shaped wall member 14 respectively. The details will be described below.
【００１３】まず、図１、図７を参照して、トンネル１
８に取付けられる短冊状壁材１４について説明する。短
冊状壁材１４は、複数のめっき処理が施された金属板の
一例である鋼板１９、２０にアーチ状に形成されたトン
ネル１８の半径に合わせて曲げ加工を施し、同様に曲げ
加工を施した補強鋼板２１で一列に溶接接続したもので
ある。短冊状壁材１４には、図示しないアンカー部材を
挿通可能なアンカーボルト孔２３と、短冊状壁材１４の
移動及び取付け時に使用すると共にセメント圧入用の貫
通孔の一例である注入パイプ用孔２４が所定間隔おきに
複数形成されている。各短冊状壁材１４は、鋼板１９、
２０、補強鋼板２１を一列に長く接続して形成されるの
で、トンネル１８内の所定位置に固定される前には、自
重により変形しやすい状態になっている。First, referring to FIG. 1 and FIG.
The strip-shaped wall member 14 attached to 8 will be described. The strip-shaped wall member 14 is formed by bending a steel plate 19 or 20, which is an example of a metal plate subjected to a plurality of plating processes, to the radius of a tunnel 18 formed in an arch shape. The reinforcing steel plates 21 are welded and connected in a line. The strip-shaped wall member 14 has an anchor bolt hole 23 through which an anchor member (not shown) can be inserted, and an injection pipe hole 24 which is used when moving and attaching the strip-shaped wall member 14 and which is an example of a through-hole for cement press-fitting. Are formed at predetermined intervals. Each strip-shaped wall member 14 includes a steel plate 19,
20, the reinforcing steel plate 21 is formed by connecting the steel plates 21 in a long line so that the reinforcing steel plate 21 is easily deformed by its own weight before being fixed at a predetermined position in the tunnel 18.
【００１４】次に、図４〜図６を参照して、短冊状壁材
１４の注入パイプ用孔２４に取付け可能な本発明の一実
施の形態に係る吊下げ補助金具２５について説明する。
吊下げ補助金具２５は、重量の大きい鋼板１９、２０、
補強鋼板２１（図７参照）を接続した短冊状壁材１４の
注入パイプ用孔２４に設けられて短冊状壁材１４を支持
でき、曲げ加工された短冊状壁材１４の半径方向内側で
ある表面２６側から取外し可能に設けられている。吊下
げ補助金具２５は、注入パイプ用孔２４をその頭部２７
が挿通可能なボルト２８と、ボルト２８と共に短冊状壁
材１４の裏面３２側に配置される裏当て金３１と、ボル
ト２８の雄ねじ部２９に外嵌して用いられ、注入パイプ
用孔２４に表面２６側から被さる座金部材３３と、ワイ
ヤロープ３４を固定可能な掛止部３５を備え、短冊状壁
材１４の表面２６側からボルト２８に螺合可能なナット
部材の一例であるアイナット３６を有している。Next, with reference to FIGS. 4 to 6, a description will be given of a hanging auxiliary fitting 25 according to an embodiment of the present invention which can be attached to the injection pipe hole 24 of the strip-shaped wall member 14. FIG.
The suspending auxiliary bracket 25 includes heavy steel plates 19, 20,
The strip-shaped wall member 14 connected to the reinforcing steel plate 21 (see FIG. 7) is provided in the hole 24 for the injection pipe and can support the strip-shaped wall member 14, and is located radially inside the bent strip-shaped wall member 14. It is provided so as to be removable from the front surface 26 side. The hanging auxiliary fitting 25 has a hole 24 for the injection pipe at its head 27.
Are used by being externally fitted to a bolt 28 that can be inserted, a backing metal 31 disposed on the back surface 32 side of the strip-shaped wall member 14 together with the bolt 28, and a male screw portion 29 of the bolt 28, and An eye nut 36, which is an example of a nut member that is provided with a washer member 33 that covers from the front surface 26 side and a locking portion 35 that can fix the wire rope 34 and that can be screwed into the bolt 28 from the front surface 26 side of the strip-shaped wall member 14, Have.
【００１５】裏当て金３１は、縦方向全長さＬ１が注入
パイプ用孔２４の直径より長く、幅方向全長さＬ２が注
入パイプ用孔２４の直径より短く形成されているので、
注入パイプ用孔２４を通過して、裏面３２側から表面２
６側に移動することができる。また、裏当て金３１に
は、ボルト２８の雄ねじ部２９に外装されるボルト孔部
３０が設けられている。ボルト孔部３０は、スリット状
（長円形）に形成され、ボルト２８の雄ねじ部２９が挿
通可能で、且つボルト２８の頭部２７が挿通不可能な大
きさになっている。さらに、裏当て金３１の裏側には、
ボルト２８の六角柱状に形成された頭部２７の連続した
２側面に側方からそれぞれ当接可能な頭部回り止め部３
７、３８が設けられている。また、裏当て金３１の表側
には、ボルト孔部３０の周縁部の一部に沿って設けら
れ、使用時には注入パイプ用孔２４に嵌入可能な実質的
にＣ形状の位置決め突起部３９が２箇所溶接固定されて
いる。The backing metal 31 has an overall length L1 in the longitudinal direction longer than the diameter of the injection pipe hole 24 and an overall length L2 in the width direction shorter than the diameter of the injection pipe hole 24.
After passing through the hole 24 for the injection pipe, the surface 2
6 side. In addition, the backing metal 31 is provided with a bolt hole portion 30 that is provided outside the male screw portion 29 of the bolt 28. The bolt hole portion 30 is formed in a slit shape (elliptical shape), and has such a size that the male screw portion 29 of the bolt 28 can be inserted and the head 27 of the bolt 28 cannot be inserted. Further, on the back side of the backing metal 31,
A head rotation preventing portion 3 that can abut on two continuous side surfaces of a hexagonal column-shaped head 27 of a bolt 28 from the side.
7, 38 are provided. On the front side of the backing metal 31, there are provided two substantially C-shaped positioning projections 39 which are provided along a part of the periphery of the bolt hole 30 and can be fitted into the injection pipe hole 24 when used. The spot is fixed by welding.
【００１６】座金部材３３は、角座金４０の表側にワッ
シャ４１を溶接したもので構成されている。なお、座金
部材３３は、アイナット３６に一体的に設けることも可
能であり、また、アイナット３６を、注入パイプ用孔２
４に嵌入不可能な大きさに形成した場合には省略するこ
とも可能である。吊下げ補助金具２５は、ボルト２８の
雄ねじ部２９に裏当て金３１を挿通してから、雄ねじ部
２９を短冊状壁材１４の注入パイプ用孔２４に裏面３２
側から挿通し、注入パイプ用孔２４から短冊状壁材１４
の表面２６側に突出したボルト２８の雄ねじ部２９に座
金部材３３を外挿した後、アイナット３６を螺合するこ
とによって、短冊状壁材１４に締結固定することができ
る。吊下げ補助金具２５を取外すときは、短冊状壁材１
４の表面２６側からアイナット３６を緩め、図６に示す
ように裏当て金３１を傾斜させ注入パイプ用孔２４を通
過させ、さらにボルト２８も注入パイプ用孔２４を通過
させ、短冊状壁材１４の裏面３２側から表面２６側に移
動させることによって、確実に表面２６側から取外すこ
とができる。なお、吊下げ補助金具２５を短冊状壁材１
４に取付けるときも、表面２６側のみから行うことが可
能である。この場合は、吊下げ補助金具２５を取外すと
きの実質的に逆順に行うとよい。The washer member 33 is formed by welding a washer 41 to the front side of a square washer 40. In addition, the washer member 33 can be provided integrally with the eye nut 36, and the eye nut 36 can be provided in the hole 2 for the injection pipe.
In the case where it is formed in a size that cannot be fitted in 4, it is possible to omit it. After the backing metal 31 is inserted into the male screw portion 29 of the bolt 28, the suspension auxiliary metal fitting 25 inserts the male screw portion 29 into the hole 24 for the injection pipe of the strip-shaped wall member 14 with the back surface 32.
Side wall material 14 through the hole 24 for the injection pipe.
After the washer member 33 is externally inserted into the male screw portion 29 of the bolt 28 protruding to the surface 26 side of the bolt 28, the eye nut 36 is screwed into the external thread portion 29, so that the bolt 28 can be fastened and fixed to the strip-shaped wall member 14. When removing the hanging auxiliary bracket 25, use the strip-shaped wall material 1
4, the eye nut 36 is loosened from the surface 26 side, and the backing metal 31 is inclined as shown in FIG. 6 to pass through the hole 24 for the injection pipe, and further, the bolt 28 also passes through the hole 24 for the injection pipe. By moving the 14 from the back surface 32 side to the front surface 26 side, it is possible to reliably remove the 14 from the front surface 26 side. In addition, the hanging auxiliary fitting 25 is used for the strip-shaped wall material 1.
4 can be performed only from the front surface 26 side. In this case, it is preferable to perform the operation in substantially the reverse order of removing the hanging auxiliary fitting 25.
【００１７】次に、図１を参照して搬送車両１１につい
て説明する。搬送車両１１は、複数の短冊状壁材１４を
搬送車両１１の長手（移動）方向に並べて支持した状態
でトンネル１８内を輸送可能で、一般に使用されるトラ
ックやトレーラ等を用いることができる。また、車輪を
旋回させ、車体の向きと位置を任意に変えることができ
る専用の重量物輸送車両を用いることによって、作業時
間の更なる短縮化を図ることも可能である。次に、図１
〜図３を参照して、作業架台１３について説明する。作
業架台１３は、搬送車両１１の荷台１２に固定された基
台部４３と、基台部４３上に立設する多段チューブ形の
複数の昇降ガイド４４と、昇降ガイド４４の上部に設け
られて昇降可能な昇降台部４５とを備えている。作業架
台１３の下部、すなわち基台部４３と昇降台部４５の間
には、アーチ状固定部１７を昇降ガイド４４に沿って昇
降可能な昇降手段の一例である油圧シリンダ４２が設け
られている。油圧シリンダ４２の基部は基台部４３に固
定され、昇降するシリンダロッドの先部は、昇降台部４
５に取付けられている。Next, the transport vehicle 11 will be described with reference to FIG. The transport vehicle 11 can transport in the tunnel 18 with a plurality of strip-shaped wall members 14 arranged and supported in the longitudinal (moving) direction of the transport vehicle 11, and a generally used truck or trailer can be used. Further, it is possible to further shorten the working time by using a dedicated heavy transport vehicle capable of turning the wheels and arbitrarily changing the direction and position of the vehicle body. Next, FIG.
The work platform 13 will be described with reference to FIGS. The work platform 13 is provided on a base 43 fixed to the carrier 12 of the transport vehicle 11, a plurality of multistage tube-shaped elevating guides 44 erected on the base 43, and an upper part of the elevating guide 44. A lifting platform 45 that can be raised and lowered. A hydraulic cylinder 42 which is an example of elevating means capable of elevating and lowering the arch-shaped fixing portion 17 along an elevating guide 44 is provided at a lower portion of the work platform 13, that is, between the base 43 and the elevating platform 45. . The base of the hydraulic cylinder 42 is fixed to a base 43, and the tip of a cylinder rod that moves up and down is
5 attached.
【００１８】搬送車両１１の一側部に設けられたフック
部材１６は、搬送車両１１の長手方向に沿って、短冊状
壁材１４を掛止可能に設けられている。フック部材１６
は、上方に開口して設けられた溝形の部材で、溝内に短
冊状壁材１４の下端部１５を嵌入させて掛止することが
できる。次いで、作業架台１３の上部に設けられたアー
チ状固定部１７について説明する。アーチ状固定部１７
は、歩道側（一側）の作業架台１３の上部に搬送車両１
１の長手方向に沿って複数設けられた高さの低い手摺部
材５５と、作業架台１３の上部の前後（長手方向両側）
縁部の中央線５９側（他側）に設けられた高さの高い手
摺部材５６と、作業架台１３の上部の前後縁部の歩道側
に配置され、上端部が手摺部材５５、５６のそれぞれの
上端部を結ぶように傾斜した手摺部材５７を有してい
る。また、前後の手摺り部材５６、５７には、複数本の
ガイドパイプ５８が架け渡して設けられている。また、
作業架台１３の上部には、図１に二点鎖線で示すよう
に、搬送車両１１の中央線５９側に突出可能な拡張台部
４６の外側フレーム５０及び台部フレーム４８が折り畳
まれた状態で設けられている。A hook member 16 provided on one side of the transport vehicle 11 is provided along the longitudinal direction of the transport vehicle 11 so that the strip-shaped wall member 14 can be hooked. Hook member 16
Is a groove-shaped member provided to open upward, and the lower end portion 15 of the strip-shaped wall member 14 can be fitted into the groove to be hooked. Next, the arch-shaped fixing portion 17 provided on the upper part of the work stand 13 will be described. Arch fixing part 17
Is a transport vehicle 1 on the work platform 13 on the sidewalk side (one side).
1, a plurality of low handrail members 55 provided along the longitudinal direction, and front and rear (on both sides in the longitudinal direction) of the upper portion of the work platform 13
A tall handrail member 56 provided on the center line 59 side (other side) of the edge, and a handrail member 55, 56 which is disposed on the sidewalk side of the front and rear edges of the upper part of the work stand 13 Has a handrail member 57 inclined so as to connect the upper ends of the handrails. Further, a plurality of guide pipes 58 are provided so as to span the front and rear handrail members 56 and 57. Also,
As shown by a two-dot chain line in FIG. 1, the outer frame 50 and the base frame 48 of the expansion base 46 that can protrude toward the center line 59 of the transport vehicle 11 are folded on the upper part of the work platform 13. Is provided.
【００１９】ここで、図２、図３を参照して、拡張台部
４６の構成について詳しく説明する。拡張台部４６は、
作業架台１３の上部に配置された昇降台部４５の中央線
５９側の端部に鉛直軸回りに水平方向に回動可能（図２
の矢印）に設けられ、折畳み時には、搬送車両１１の長
手方向に沿って配置され、組立て時には、中央線５９側
に突出して固定される複数の台部フレーム４８と、各台
部フレーム４８の先端部に水平軸回りに垂直方向に回動
可能（図３の矢印）に設けられ、折畳み時には、各台部
フレーム４８にそれぞれ重合して配置され、組立て時に
は上方に突出して固定される外側フレーム５０とを有し
ている。拡張台部４６を組立てるとき、各台部フレーム
４８及び各外側フレーム５０は、補強部材５１によって
接続され、さらに各台部フレーム４８の間には、作業床
５２が取付けられる。また、拡張台部４６の前後の縁部
には、手摺部材６３が取付けられる。Here, the configuration of the extension base 46 will be described in detail with reference to FIGS. The extension base 46 is
An end on the center line 59 side of the elevating platform 45 disposed above the work platform 13 is rotatable horizontally around a vertical axis (FIG. 2).
), Are arranged along the longitudinal direction of the transport vehicle 11 when folded, and are protruded and fixed to the center line 59 side during assembling, and the tip of each of the base frames 48 The outer frame 50 is provided so as to be rotatable in the vertical direction about a horizontal axis (arrow in FIG. 3), and is arranged on each base frame 48 when folded, and is projected and fixed upward during assembly. And When assembling the extension base 46, each base frame 48 and each outer frame 50 are connected by a reinforcing member 51, and a work floor 52 is mounted between the base frames 48. A handrail member 63 is attached to the front and rear edges of the extension base 46.
【００２０】また、外側フレーム５０の外側、台部フレ
ーム４８の下側、及び中央線５９側の昇降ガイド４４の
外側には、屈曲した防護板５４が設けられ、作業架台１
３上から他の車線５３への部材の落下や、作業時に発生
する粉塵の飛散等を防止している。次いで、作業架台１
３に設けられた進退手段の一例である油圧シリンダ６０
及び補助支持部材の一例であるチェーンブロック６１に
ついて説明する。油圧シリンダ６０は、歩道側に配置さ
れた複数の昇降ガイド４４の中間部に垂直方向に回動可
能にそれぞれ支持されており、未使用時には、先端部を
下方に向けて昇降ガイド４４に重合して収納され、使用
時には、それぞれ歩道側に長手方向を水平にして固定さ
れ、シリンダロッドを長手方向に突出可能に設けられて
いる。油圧シリンダ６０によって、短冊状壁材１４の下
部を歩道側に押圧して、トンネル１８の内壁に近接させ
ることができる。作業架台１３の歩道側には、短冊状壁
材１４を吊下げ支持するチェーンブロック６１が、歩道
側に突出して設けられた吊下げ用棒材６２の先部と、短
冊状壁材１４の下部を連結して設けられている。なお、
チェーンブロック６１の代わりにワイヤロープ等を用い
ることもできる。A bent protection plate 54 is provided outside the outer frame 50, below the base frame 48, and outside the elevating guide 44 on the center line 59 side.
3 prevents the member from falling onto another lane 53 and scattering of dust generated during work. Next, the work platform 1
3, a hydraulic cylinder 60 as an example of the reciprocating means provided in
The chain block 61 which is an example of the auxiliary support member will be described. The hydraulic cylinder 60 is vertically rotatably supported at an intermediate portion of the plurality of elevating guides 44 arranged on the sidewalk side, and when not in use, the tip is directed downward to overlap the elevating guide 44. When used, they are fixed to the sidewalk side with the longitudinal direction horizontal, and the cylinder rod is provided so as to be able to protrude in the longitudinal direction. By the hydraulic cylinder 60, the lower part of the strip-shaped wall member 14 can be pressed toward the sidewalk and brought closer to the inner wall of the tunnel 18. A chain block 61 for suspending and supporting the strip-shaped wall member 14 is provided on the side of the work stand 13 on the side of the sidewalk. Are connected to each other. In addition,
A wire rope or the like can be used instead of the chain block 61.
【００２１】次いで、補修装置１０及び吊下げ補助金具
２５を用いたトンネルの内壁の補修工法の手順について
説明する。 （車両移送工程）搬送車両１１は、例えば、工場からト
ンネル１８の近傍に設けられた作業場まで一般道路を走
行して移動することができる。このとき、搬送車両１１
には作業架台１３を取付けておくが、図１に２点鎖線で
示すように、作業架台１３の昇降台部４５を下降させ、
且つ拡張台部４６を折畳んだ状態にしてから移動させ
る。また、アーチ状固定部１７を構成する手摺部材５５
〜５７及びガイドパイプ５８は取外した状態で移送する
が、搬送車両１１の全高が、所定の基準値より小さくな
る場合には、予め取付けておいてもよい。短冊状壁材１
４を構成する鋼板１９、２０及び補強鋼板２１は、他の
輸送車両を用いて必要な数だけ作業場に運搬する。Next, a description will be given of a procedure of a repairing method of the inner wall of the tunnel using the repairing device 10 and the hanging auxiliary fitting 25. (Vehicle Transfer Process) The transfer vehicle 11 can travel on a general road from a factory to a work place provided near the tunnel 18, for example. At this time, the transport vehicle 11
The work platform 13 is attached to the work platform, and as shown by a two-dot chain line in FIG.
The extension base 46 is moved after being folded. Also, the handrail member 55 constituting the arch-shaped fixing portion 17
The transporting of the transport vehicle 11 is performed when the total height of the transport vehicle 11 is smaller than a predetermined reference value. Strip-shaped wall material 1
The necessary number of the steel plates 19 and 20 and the reinforcing steel plate 21 that constitute the 4 are transported to the workplace by a required number using another transport vehicle.
【００２２】（短冊状壁材製造工程）複数の鋼板１９、
２０及び補強鋼板２１を溶接し、短冊状壁材１４を製造
する。鋼板１９、２０の曲げ加工は、輸送前に行ってお
いてもよく、また、作業場で行うこともできる。短冊状
壁材１４は、トンネル１８の内壁の周方向の長さの半分
以上の長さ、すなわち、半分の長さより拡張台部４６の
周方向長さ分だけ長く形成する。各短冊状壁材１４に多
数形成されている注入パイプ用孔２４のうちの所定位置
には、吊下げ補助金具２５を取付けておく。 （作業架台組立て工程）搬送車両１１の中央線５９側に
トンネル１８内の中央線５９を越えて突出可能な台部フ
レーム４８及び外側フレーム５０を組立て、ガイドパイ
プ５８を取付ける。また、作業架台１３上には、アーチ
状固定部１７を組み立てて固定し、拡張台部４６を組立
てる。さらに、防護板５４も取付けておく。 （第１工程）前記短冊状壁材製造工程によって製造され
た短冊状壁材１４の上部を、図示しないクレーン等で支
持して持ち上げ、昇降可能な作業架台１３の上部に設け
られたアーチ状固定部１７上に降ろし、図１に示すよう
に短冊状壁材１４に取付けられた吊下げ補助金具２５
と、アーチ状固定部１７のガイドパイプ５８とをワイヤ
ロープ３４を用いて固定する。このとき、短冊状壁材１
４の下端部１５は、搬送車両１１のフック部材１６に掛
止して支持させる。同様の手順によって複数の短冊状壁
材１４を、トンネル１８の長手方向に沿ってアーチ状固
定部１７に並べて取付ける。そして、短冊状壁材１４の
下部と作業架台１３をチェーンブロック６１で連結し、
さらに、昇降ガイド４４に設けられた油圧シリンダ６０
を水平にして固定する。(Manufacturing process of strip-shaped wall material)
20 and the reinforcing steel plate 21 are welded to produce the strip-shaped wall material 14. The bending of the steel plates 19 and 20 may be performed before transportation, or may be performed at a work place. The strip-shaped wall member 14 is formed to have a length equal to or more than half of the circumferential length of the inner wall of the tunnel 18, that is, longer than the half length by the circumferential length of the extension base 46. At a predetermined position in a large number of injection pipe holes 24 formed in each of the strip-shaped wall members 14, a suspending auxiliary fitting 25 is attached. (Work frame assembling process) The base frame 48 and the outer frame 50 that can protrude beyond the center line 59 in the tunnel 18 are assembled on the center line 59 side of the transport vehicle 11, and the guide pipe 58 is attached. Further, the arch-shaped fixing portion 17 is assembled and fixed on the work stand 13, and the extension base portion 46 is assembled. Further, a protection plate 54 is also attached. (First Step) The upper part of the strip-shaped wall material 14 manufactured in the strip-shaped wall material manufacturing process is supported by a crane or the like (not shown) and lifted, and an arch-shaped fixing provided on the upper part of the work base 13 which can be raised and lowered. The lowering bracket 25 is attached to the strip-shaped wall member 14 as shown in FIG.
And the guide pipe 58 of the arch-shaped fixing portion 17 are fixed using the wire rope 34. At this time, the strip-shaped wall material 1
The lower end 15 of 4 is hooked and supported by a hook member 16 of the transport vehicle 11. A plurality of strip-shaped wall members 14 are arranged and mounted on the arch-shaped fixing portion 17 along the longitudinal direction of the tunnel 18 by the same procedure. Then, the lower part of the strip-shaped wall member 14 and the work base 13 are connected by a chain block 61,
Further, a hydraulic cylinder 60 provided on the lift guide 44
And fix it horizontally.
【００２３】（第２工程）複数の短冊状壁材１４を搭載
した搬送車両１１を作業架台１３を下降させた状態で運
転してトンネル１８内の所定位置に進入させる。このと
き、短冊状壁材１４の上部位置は、図１に二点鎖線で示
すように、トンネル１８の内壁との間に大きな隙間を形
成している。従って、移動中に短冊状壁材１４がトンネ
ル１８に接触することを防止しながら迅速に移動するこ
とができる。次に、油圧シリンダ４２を作動させて作業
架台１３を上昇させる。本実施の形態においては、短冊
状壁材１４のトンネル１８に対する周方向の取付け基準
位置を短冊状壁材１４の下端部１５にしている。従っ
て、作業架台１３を上昇させるときには、短冊状壁材１
４の上部を固定しているワイヤロープ３４と下部を固定
しているチェーンブロック６１を徐々に緩めて短冊状壁
材１４をアーチ状固定部１７に沿って歩道側に摺動移動
させながら、短冊状壁材１４の上部をトンネル１８の内
壁の上部に近接させる。そして、ワイヤロープ３４及び
チェーンブロック６１を用いて短冊状壁材１４を周方向
のいずれか一方に引張って位置を調整し、短冊状壁材１
４の上部をそれぞれトンネル１８の内壁に図示しないア
ンカー部材を用いて固定する。(Second Step) The transport vehicle 11 on which the plurality of strip-shaped wall members 14 are mounted is operated with the work platform 13 lowered to enter a predetermined position in the tunnel 18. At this time, the upper position of the strip-shaped wall member 14 forms a large gap with the inner wall of the tunnel 18 as shown by a two-dot chain line in FIG. Therefore, it is possible to move quickly while preventing the strip-shaped wall member 14 from contacting the tunnel 18 during the movement. Next, the work platform 13 is raised by operating the hydraulic cylinder 42. In the present embodiment, the reference position for attaching the strip-shaped wall member 14 to the tunnel 18 in the circumferential direction is the lower end portion 15 of the strip-shaped wall member 14. Therefore, when the work base 13 is raised, the strip-shaped wall material 1
While gradually loosening the wire rope 34 fixing the upper part of the wire 4 and the chain block 61 fixing the lower part, the strip-shaped wall material 14 is slid along the arch-shaped fixing part 17 toward the sidewalk, and The upper part of the wall member 14 is brought close to the upper part of the inner wall of the tunnel 18. The position of the strip-shaped wall member 14 is adjusted by pulling the strip-shaped wall member 14 in one of the circumferential directions using the wire rope 34 and the chain block 61.
4 is fixed to the inner wall of the tunnel 18 using an anchor member (not shown).
【００２４】次に、昇降ガイド４４に設けられた油圧シ
リンダ６０を作動させて短冊状壁材１４の下部を歩道側
（一側方）に押圧してトンネル１８の内壁に近接させ、
短冊状壁材１４の中間部及び下部を順次トンネル１８の
内壁にアンカー部材を用いて固定する。隣接する短冊状
壁材１４は、それぞれの端部を当接させておくだけでよ
いが、溶接固定することも可能である。短冊状壁材１４
を固定した後は、吊下げ補助金具２５を緩めて短冊状壁
材１４の半径方向内側から取外す。そして、吊下げ補助
金具２５が締結されていた注入パイプ用孔２４に図示し
ない注入パイプを取付け、モルタル等の補強材を注入し
てトンネル１８の内壁の補強を行うことができる。この
ような手順によって、トンネル１８の内壁の補強を簡単
且つ迅速に行うことができる。Next, the hydraulic cylinder 60 provided on the elevating guide 44 is operated to press the lower part of the strip-shaped wall member 14 toward the sidewalk (one side) to approach the inner wall of the tunnel 18,
The intermediate portion and the lower portion of the strip-shaped wall member 14 are sequentially fixed to the inner wall of the tunnel 18 using an anchor member. Adjacent strip-shaped wall members 14 need only be brought into contact with their respective ends, but can also be fixed by welding. Strip-shaped wall material 14
Is fixed, the hanging auxiliary fitting 25 is loosened and removed from the inside of the strip-shaped wall member 14 in the radial direction. Then, an injection pipe (not shown) is attached to the injection pipe hole 24 to which the suspension auxiliary fitting 25 is fastened, and a reinforcing material such as mortar is injected to reinforce the inner wall of the tunnel 18. By such a procedure, the inner wall of the tunnel 18 can be reinforced easily and quickly.
【００２５】トンネル１８の内壁の広い範囲を補強する
ときには、搬送車両１１を作業場に戻し、同様の手順で
短冊状壁材１４を再度搬送する。また、反対車線側のト
ンネル１８の内壁の補強を行うときには、搬送車両１１
の移動方向を逆にして搬送することができ、また、移動
方向を逆にしない場合には、作業架台１３とフック部材
１６を搬送車両１１の荷台１２に対して左右逆に取付け
ることによって、同様の手順で作業を行うことができ
る。トンネル１８内を通過する道路は、短冊状壁材１４
を搬送車両１１によって取付け位置まで輸送し、作業架
台１３を上昇させるまでは、全面通行止めにする必要が
あるが、作業架台１３を上昇させた後、搬送車両１１を
配置した車線とは異なる他の車線５３は通常通り一般車
両を走行させることができる。以上、本発明に係る実施
の形態について説明してきたが、本発明は、前記実施の
形態に限定されるものではなく、例えば、前記実施の形
態では、短冊状壁材１４の取付け基準位置を下端部にし
た場合について説明したが、上端部を基準にすることも
可能である。作業架台１３を上昇させるときにワイヤロ
ープ３４を緩める必要がなくなるので、作業を迅速に行
うことができる。また、この場合にフック部材１６を作
業架台１３の昇降台部４５に取付けておくと、短冊状壁
材１４の下部も作業架台１３と一体的に昇降させること
ができるので、安定性を向上させることができる。When reinforcing a wide area of the inner wall of the tunnel 18, the transport vehicle 11 is returned to the work place, and the strip-shaped wall member 14 is transported again in the same procedure. When reinforcing the inner wall of the tunnel 18 on the opposite lane side, the transport vehicle 11
In the case where the moving direction is not reversed, the work platform 13 and the hook member 16 are attached to the loading platform 12 of the transporting vehicle 11 in the left-right direction. The work can be performed according to the following procedure. The road passing through the tunnel 18 is a strip-shaped wall material 14.
Is transported by the transport vehicle 11 to the mounting position, and it is necessary to block all traffic until the work platform 13 is raised. However, after the work platform 13 is raised, another traffic lane different from the lane in which the transport vehicle 11 is arranged is required. Lane 53 allows ordinary vehicles to travel as usual. As described above, the embodiment according to the present invention has been described. However, the present invention is not limited to the above-described embodiment. For example, in the above-described embodiment, the mounting reference position of the strip-shaped wall member 14 is set at the lower end. Although the description has been given of the case where the upper portion is used as a reference, it is also possible to use the upper end as a reference. Since it is not necessary to loosen the wire rope 34 when raising the work base 13, the work can be performed quickly. In this case, if the hook member 16 is attached to the elevating base 45 of the work base 13, the lower part of the strip-shaped wall member 14 can also be moved up and down integrally with the work base 13, thereby improving stability. be able to.
【００２６】[0026]
【発明の効果】請求項１及び２記載のトンネルの内壁の
補修工法においては、第１工程で、短冊状壁材を、アー
チ状固定部に上部が支持されると共に下端部を搬送車両
の一側部に掛止させて支持するので、輸送中に揺動する
ことを防止して安全性を向上させることができる。ま
た、第２工程では、作業架台を下降させた状態でトンネ
ル内に進入するので、短冊状壁材がトンネルの内壁に接
触することを防止しながら迅速に移動することができ
る。かかる構成によって、多数の短冊状壁材をトンネル
の内壁に短時間で効率よく取付けることができ、その後
のモルタル圧入等の作業を迅速に行い、補修工期を大幅
に短縮することができる。特に、請求項２記載のトンネ
ルの内壁の補修工法においては、搬送車両の他側に拡張
台部を設けるので、他の車線の車両の走行を妨げること
なく、他の車線の上方位置にあるトンネルの内壁に短冊
状壁材を取付けることが可能になる。また、短冊状壁材
をワイヤロープで支持しているので、トンネルの内壁の
周方向位置をワイヤロープで調整することができ、ま
た、短冊状壁材のトンネルの長手方向の位置は搬送車両
を前進又は後退させることによって調整できるので、大
型の短冊状壁材の取付けを迅速に行うことができる。According to the method for repairing the inner wall of a tunnel according to the first and second aspects of the present invention, in the first step, the strip-shaped wall material is supported on the upper portion by the arch-shaped fixing portion and the lower end portion of the transport vehicle. Since it is supported by being hooked to the side, it can be prevented from swinging during transportation and safety can be improved. Further, in the second step, since the work platform enters the tunnel with the work platform lowered, the strip-shaped wall material can be quickly moved while preventing the strip-shaped wall material from contacting the inner wall of the tunnel. With such a configuration, a large number of strip-shaped wall materials can be efficiently attached to the inner wall of the tunnel in a short time, and subsequent work such as mortar press-fitting can be performed quickly, thereby greatly shortening the repair period. In particular, in the method for repairing the inner wall of a tunnel according to the second aspect, since the extension platform is provided on the other side of the transport vehicle, the tunnel located above the other lane without hindering the traveling of the vehicle on the other lane. It is possible to attach a strip-shaped wall material to the inner wall of the vehicle. In addition, since the strip-shaped wall material is supported by the wire rope, the circumferential position of the inner wall of the tunnel can be adjusted by the wire rope, and the position of the strip-shaped wall material in the longitudinal direction of the tunnel can be adjusted by the transport vehicle. Since the adjustment can be made by moving forward or backward, the large strip-shaped wall member can be quickly mounted.
【００２７】請求項３記載のトンネルの内壁の補修装置
においては、作業架台に、昇降手段と、進退手段を設け
ているので、短冊状壁材の上部と下部をそれぞれ簡単に
トンネルの内壁に近接させることができ、短冊状壁材の
トンネルの内壁への固定を、容易且つ迅速に行うことが
できる。また、拡張台部が設けられているので、他の車
線の車両の走行を妨げることなく、他の車線の上方位置
のトンネルの内壁の補修作業を行うことができる。請求
項４記載の吊下げ補助金具は、縦方向全長さが金属板の
貫通孔の直径より長く、幅方向全長さが貫通孔の直径よ
り短い裏当て金を有しているので、ボルト及びナット部
材によって締結固定を行う吊下げ補助金具を表側のみか
ら取外すことができる。In the apparatus for repairing the inner wall of a tunnel according to the third aspect, since the work platform is provided with the elevating means and the advancing / retreating means, the upper and lower portions of the strip-shaped wall material can be easily brought close to the inner wall of the tunnel, respectively. The fixing of the strip-shaped wall material to the inner wall of the tunnel can be performed easily and quickly. In addition, since the extension base is provided, the inner wall of the tunnel located above the other lane can be repaired without hindering the traveling of the vehicle in the other lane. The hanging auxiliary fitting according to claim 4 has a backing metal whose overall length in the vertical direction is longer than the diameter of the through hole of the metal plate and whose overall length in the width direction is shorter than the diameter of the through hole. The hanging auxiliary fitting which is fastened and fixed by the member can be removed from only the front side.
【図１】本発明の一実施の形態に係るトンネルの内壁の
補修装置の使用状態を示す正断面図である。FIG. 1 is a front sectional view showing a use state of a device for repairing an inner wall of a tunnel according to an embodiment of the present invention.
【図２】同トンネルの内壁の補修装置の作業架台及び拡
張台部の平断面図である。FIG. 2 is a plan cross-sectional view of a work base and an expansion base of the repair device for an inner wall of the tunnel.
【図３】同トンネルの内壁の補修装置の作業架台及び拡
張台部の正断面図である。FIG. 3 is a front sectional view of a work base and an extension base of the repair device for an inner wall of the tunnel.
【図４】本発明の一実施の形態に係る吊下げ補助金具の
締結状態を示す正断面図である。FIG. 4 is a front cross-sectional view showing a fastening state of a hanging auxiliary fitting according to one embodiment of the present invention.
【図５】同吊下げ補助金具の裏当て金の平断面図であ
る。FIG. 5 is a plan sectional view of a backing metal of the hanging auxiliary fitting.
【図６】同吊下げ補助金具の取外し時の状態を示す正断
面図である。FIG. 6 is a front sectional view showing a state in which the hanging auxiliary fitting is removed.
【図７】トンネルの内壁に取付けられる短冊状壁材の展
開図である。FIG. 7 is a development view of a strip-shaped wall material attached to the inner wall of the tunnel.
１０：補修装置、１１：搬送車両、１２：荷台、１３：
作業架台、１４：短冊状壁材、１５：下端部、１６：フ
ック部材、１７：アーチ状固定部、１８：トンネル、１
９、２０：鋼板（金属板）、２１：補強鋼板、２３：ア
ンカーボルト孔、２４：注入パイプ用孔（貫通孔）、２
５：吊下げ補助金具、２６：表面、２７：頭部、２８：
ボルト、２９：雄ねじ部、３０：ボルト孔部、３１：裏
当て金、３２：裏面、３３：座金部材、３４：ワイヤロ
ープ、３５：掛止部、３６：アイナット（ナット部
材）、３７、３８：頭部回り止め部、３９：位置決め突
起部、４０：角座金、４１：ワッシャ、４２：油圧シリ
ンダ（昇降手段）、４３：基台部、４４：昇降ガイド、
４５：昇降台部、４６：拡張台部、４８：台部フレー
ム、５０：外側フレーム、５１：補強部材、５２：作業
床、５３：他の車線、５４：防護板、５５〜５７：手摺
部材、５８：ガイドパイプ、５９：中央線、６０：油圧
シリンダ（進退手段）、６１：チェーンブロック（補助
支持部材）、６２：吊下げ用棒材、６３：手摺部材10: repair equipment, 11: transport vehicle, 12: carrier, 13:
Work frame, 14: strip-shaped wall material, 15: lower end portion, 16: hook member, 17: arch-shaped fixing portion, 18: tunnel, 1
9, 20: steel plate (metal plate), 21: reinforced steel plate, 23: anchor bolt hole, 24: hole for injection pipe (through hole), 2
5: Suspension auxiliary fitting, 26: Surface, 27: Head, 28:
Bolt, 29: male thread, 30: bolt hole, 31: backing, 32: back, 33: washer, 34: wire rope, 35: hook, 36: eye nut (nut), 37, 38 : Head rotation stopper, 39: positioning protrusion, 40: square washer, 41: washer, 42: hydraulic cylinder (elevating means), 43: base, 44: elevating guide,
45: lifting platform, 46: extension platform, 48: platform frame, 50: outer frame, 51: reinforcing member, 52: work floor, 53: other lane, 54: protective plate, 55-57: handrail member , 58: guide pipe, 59: center line, 60: hydraulic cylinder (advancing / retracting means), 61: chain block (auxiliary support member), 62: hanging bar, 63: handrail member
───────────────────────────────────────────────────── フロントページの続き (72)発明者 西村 誠司 福岡県飯塚市下三緒35−359 Ｆターム(参考） 2D055 CA04 GB11 GC02 LA16 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Seiji Nishimura 35-359 Shimomitsuo, Iizuka-shi, Fukuoka F-term (reference) 2D055 CA04 GB11 GC02 LA16
Claims (4)
を、搬送車両に設けられた昇降可能な作業架台のアーチ
状固定部にトンネルの長手方向に沿って並べて取付ける
と共に、前記短冊状壁材の下端部を前記搬送車両の一側
にそれぞれ掛止させて支持する第１工程と、複数の前記
短冊状壁材を搭載した前記搬送車両を、前記作業架台を
下降させた状態で前記トンネル内の所定位置に進入さ
せ、前記作業架台を上昇させて前記短冊状壁材をそれぞ
れ前記トンネルの内壁にアンカー部材を用いて固定する
第２工程とを有することを特徴とするトンネルの内壁の
補修工法。An upper portion of a plurality of strip-shaped wall materials prepared in advance is mounted side by side along a longitudinal direction of a tunnel on an arch-shaped fixing portion of a worktable that can be moved up and down provided in a transport vehicle, and the strip-shaped wall material is mounted. A first step of suspending and supporting the lower end of the wall material to one side of the transport vehicle, and transporting the transport vehicle equipped with a plurality of the strip-shaped wall materials in a state where the work platform is lowered. A second step of entering the predetermined position in the tunnel, raising the work platform and fixing each of the strip-shaped wall members to the inner wall of the tunnel using an anchor member. Repair method.
法において、前記作業架台は、前記搬送車両の他側に前
記トンネル内の中央線を越えて突出可能な拡張台部を備
え、前記短冊状壁材は、前記トンネルの内壁の周方向の
長さの半分以上の長さを有して、前記作業架台に周方向
位置を調整可能なワイヤロープを介して支持することを
特徴とするトンネルの内壁の補修工法。2. The method for repairing an inner wall of a tunnel according to claim 1, wherein the work platform has an extension base portion protruding beyond a center line in the tunnel on the other side of the transport vehicle, and the strip is provided. The tunnel wall has a length of at least half the circumferential length of the inner wall of the tunnel, and is supported on the work platform via a wire rope whose circumferential position is adjustable. Repair method for the inner wall of the building.
を輸送可能な搬送車両と、該搬送車両に設けられた作業
架台と、該作業架台の上部に設けられ、複数の前記短冊
状壁材の上部を支持するアーチ状固定部と、前記作業架
台の一側に設けられ、前記短冊状壁材の下部を一側に押
圧して前記トンネルの内壁に近接させる進退手段と、前
記作業架台に設けられ、前記搬送車両の他側に突出可能
な拡張台部と、前記作業架台の下部に設けられ、前記短
冊状壁材を上昇させて該短冊状壁材の上部を前記トンネ
ルの内壁に近接させる昇降手段と、前記作業架台に設け
られ、前記短冊状壁材の下部を吊下げ支持する補助支持
部材と、前記搬送車両の一側部に設けられて前記短冊状
壁材の下端部をそれぞれ掛止するフック部材とを有し、
複数の前記短冊状壁材を前記トンネルの内壁に近接させ
てそれぞれ取付けることを特徴とするトンネルの内壁の
補修装置。3. A transport vehicle that supports a plurality of strip-shaped wall members and can be transported in a tunnel, a work platform provided in the transport vehicle, and a plurality of the strip-shaped components provided above the work platform. An arch-shaped fixing portion that supports an upper portion of a wall material; an advancing / retreating unit that is provided on one side of the work platform and presses a lower portion of the strip-shaped wall material to one side to approach an inner wall of the tunnel; An extension base portion provided on the gantry and capable of protruding to the other side of the transport vehicle; and an extension base portion provided at a lower portion of the work gantry, raising the strip-like wall material to form an upper portion of the strip-like wall material into an inner wall of the tunnel Lifting and lowering means which is provided on the work frame, and an auxiliary support member for suspending and supporting a lower portion of the strip-shaped wall material; and a lower end portion of the strip-shaped wall material provided at one side of the transport vehicle. Each having a hook member,
A device for repairing an inner wall of a tunnel, wherein a plurality of the strip-shaped wall members are attached so as to be close to the inner wall of the tunnel.
れて該金属板を支持し、該金属板の表側から取外し可能
な吊下げ補助金具であって、前記金属板の所定位置に形
成された貫通孔をその頭部が挿通可能なボルトと、縦方
向全長さが前記貫通孔の直径より長く、幅方向全長さが
前記貫通孔の直径より短く、使用にあっては前記金属板
の裏側に配置され、前記ボルトの雄ねじ部が挿通可能で
該ボルトの頭部が挿通不可能な長円形のボルト孔部を備
え、更に裏側には挿通した前記ボルトの頭部回り止め部
が設けられた裏当て金と、使用にあっては前記金属板の
表側に配置され、前記ボルトに外嵌して用いられ、前記
貫通孔に被さる座金部材と、ワイヤロープを固定可能な
掛止部を備え、前記金属板の表側から前記ボルトに螺合
可能なナット部材とを有することを特徴とする吊下げ補
助金具。4. A hanging auxiliary fitting provided at a predetermined position on a heavy metal plate to support the metal plate and detachable from a front side of the metal plate, the hanging auxiliary fitting being formed at a predetermined position on the metal plate. A bolt whose head can be inserted through the through hole, the overall length in the vertical direction is longer than the diameter of the through hole, and the overall length in the width direction is shorter than the diameter of the through hole. The bolt is provided with an oblong bolt hole portion through which a male screw portion of the bolt can be inserted and a head portion of the bolt cannot be inserted, and further, a head detent portion of the inserted bolt is provided on the back side. A backing metal, in use, is disposed on the front side of the metal plate, is used by being externally fitted to the bolt, and includes a washer member that covers the through hole, and a hook that can fix a wire rope, A nut member that can be screwed into the bolt from the front side of the metal plate; An auxiliary hanging metal fitting comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001099427A JP2002295187A (en) | 2001-03-30 | 2001-03-30 | Construction method and device for repairing inner wall of tunnel, and auxiliary fitting for suspension |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001099427A JP2002295187A (en) | 2001-03-30 | 2001-03-30 | Construction method and device for repairing inner wall of tunnel, and auxiliary fitting for suspension |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2002295187A true JP2002295187A (en) | 2002-10-09 |
Family
ID=18952966
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001099427A Pending JP2002295187A (en) | 2001-03-30 | 2001-03-30 | Construction method and device for repairing inner wall of tunnel, and auxiliary fitting for suspension |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2002295187A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011117129A (en) * | 2009-11-30 | 2011-06-16 | Takenaka Doboku Co Ltd | Tunnel repairing and reinforcing apparatus |
| KR200461507Y1 (en) | 2012-02-02 | 2012-07-19 | 평산에스아이 주식회사 | Movable carriage using corrugated multi plate structure |
| JP2016017274A (en) * | 2014-07-04 | 2016-02-01 | 日本ヴィクトリック株式会社 | Expansion joint and flexible segment for structure |
| CN109209440A (en) * | 2018-10-31 | 2019-01-15 | 中建隧道建设有限公司 | large-span tunnel vault settlement processing method |
| CN114046157A (en) * | 2022-01-12 | 2022-02-15 | 北京科技大学 | Large-span false roof structure adopting downward horizontal access filling method and construction method |
| IT202100014114A1 (en) | 2021-05-28 | 2022-11-28 | Luciano Baccelliere | Operating machine for carrying out maintenance and/or restoration works inside tunnels with hydraulic support |
-
2001
- 2001-03-30 JP JP2001099427A patent/JP2002295187A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011117129A (en) * | 2009-11-30 | 2011-06-16 | Takenaka Doboku Co Ltd | Tunnel repairing and reinforcing apparatus |
| KR200461507Y1 (en) | 2012-02-02 | 2012-07-19 | 평산에스아이 주식회사 | Movable carriage using corrugated multi plate structure |
| JP2016017274A (en) * | 2014-07-04 | 2016-02-01 | 日本ヴィクトリック株式会社 | Expansion joint and flexible segment for structure |
| CN109209440A (en) * | 2018-10-31 | 2019-01-15 | 中建隧道建设有限公司 | large-span tunnel vault settlement processing method |
| IT202100014114A1 (en) | 2021-05-28 | 2022-11-28 | Luciano Baccelliere | Operating machine for carrying out maintenance and/or restoration works inside tunnels with hydraulic support |
| CN114046157A (en) * | 2022-01-12 | 2022-02-15 | 北京科技大学 | Large-span false roof structure adopting downward horizontal access filling method and construction method |
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