JPH07301096A - Segment for forming tunnel walk floor and construction method thereof - Google Patents

Segment for forming tunnel walk floor and construction method thereof

Info

Publication number
JPH07301096A
JPH07301096A JP6094573A JP9457394A JPH07301096A JP H07301096 A JPH07301096 A JP H07301096A JP 6094573 A JP6094573 A JP 6094573A JP 9457394 A JP9457394 A JP 9457394A JP H07301096 A JPH07301096 A JP H07301096A
Authority
JP
Japan
Prior art keywords
tunnel
segment
forming
block
longitudinal direction
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
JP6094573A
Other languages
Japanese (ja)
Other versions
JP3345165B2 (en
Inventor
Hiroki Someya
洋樹 染谷
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.)
Ishikawajima Kenzai Kogyo Co Ltd
Ishikawajima Construction Materials Co Ltd
Original Assignee
Ishikawajima Kenzai Kogyo Co Ltd
Ishikawajima Construction Materials Co Ltd
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 Ishikawajima Kenzai Kogyo Co Ltd, Ishikawajima Construction Materials Co Ltd filed Critical Ishikawajima Kenzai Kogyo Co Ltd
Priority to JP09457394A priority Critical patent/JP3345165B2/en
Publication of JPH07301096A publication Critical patent/JPH07301096A/en
Application granted granted Critical
Publication of JP3345165B2 publication Critical patent/JP3345165B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Abstract

PURPOSE:To easily construct a walk floor by a method wherein a plurality of blocks are juxtaposed as the blocks are engaged with each other in the longitudinal direction of a tunnel and the height of the block is adjusted to a given value through regulation of a male screw. CONSTITUTION:A notch part 103 is formed in the upper surface side of the front stage in the longitudinal direction of a tunnel of a block 12 easily construct a walk floor and an engaging protrusion part 104 is formed on the upper surface side of a rear end part. Two female screw holes 101 and 101 are vertically formed through in a state to be juxtaposed in the peripheral direction of the tunnel, and male screws 102 are respectively mounted in a screwed-in state so that the lower ends thereof are protruded to the inner peripheral surface side of the bottom of a lining body 3. To construct a walk floor 11 by using the blocks 12, an arcuate surface 13 is matched with the inner peripheral surface of the bottom of the lining body 3 so that an upper surface 14 is horizontally kept each time one full ring 2 of the lining body 3 consisting of segments 1 is formed. By bringing the end faces of the adjoining segments into contact with each other, the lining bodies are disposed in a state to arrange in the longitudinal direction of a tunnel. Engagement is effected in a state that the level of the upper surface of the front end of the rear block 12 is positioned flush with that of the rear end part of the front block 12, and by rotating a male screw 102, the height position on the front end side is regulated.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、断面リング状のトンネ
ル覆工体の底部に上面が略水平とされてトンネル長手方
向に延びる歩床を敷設するために用いられるトンネル歩
床形成用セグメント及びその敷設方法に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tunnel footstep forming segment used for laying a footstep having a substantially horizontal upper surface and extending in the tunnel longitudinal direction at the bottom of a tunnel lining body having a ring-shaped cross section. Regarding the laying method.

【0002】[0002]

【従来の技術】たとえば、内部に電話ケーブルやガス
管、上下水道等の各種公益設備が配設される共同溝等の
トンネルは、断面形状が、縦長の長方形状あるいはリン
グ状のものが多い。いずれの場合でも、トンネル外壁を
構成する筒状の覆工体は、コンクリートの現場打設か、
多数の円弧版状のプレキャストコンクリート版(いわゆ
るセグメント)を据え付けるかで構築されている。この
種の共同溝では、各種公益設備の点検や修理、あるいは
増設等を行う場合のため、底部中央は作業員の歩行用通
路および資材搬入用通路とされる。ここで、断面形状が
長方形状のトンネルであれば、平坦で水平な底部をその
まま通路として利用できるが、断面形状がリング状のト
ンネルの場合は底部が凹面であるので、水平な上面を有
する通路すなわち歩床を敷設する必要がある。
2. Description of the Related Art For example, a tunnel such as a common groove in which various public utilities such as telephone cables, gas pipes, and water and sewers are installed has a vertically long rectangular shape or a ring shape in many cases. In either case, the tubular lining body that makes up the outer wall of the tunnel is either concrete cast on site or
It is constructed by installing a number of arc-shaped precast concrete plates (so-called segments). In this type of common ditch, the center of the bottom is used as a walkway for workers and a passage for carrying in materials for the purpose of inspecting, repairing, or expanding various public facilities. Here, if the tunnel has a rectangular cross-section, the flat and horizontal bottom can be used as it is as a passage, but if the tunnel has a ring-shaped cross-section, the bottom is concave, so a passage with a horizontal upper surface is used. That is, it is necessary to lay a footbed.

【0003】図4は断面リング状の共同溝であるトンネ
ルを示しており、この場合のトンネルは、複数のセグメ
ント1を据え付けて形成されるリング2を軸方向に接合
して覆工体3が構築され、内部に各種公益設備4がハン
ガー5を介して配設され、底部に上面が水平で両側に導
水溝6が延びる歩床7が敷設されている。従来より上記
のような歩床7は、コンクリートを現場打設することで
敷設されている。
FIG. 4 shows a tunnel, which is a joint groove having a ring-shaped cross section. In this case, the lining body 3 is formed by joining a ring 2 formed by installing a plurality of segments 1 in an axial direction. It is constructed and various utility facilities 4 are arranged inside through hangers 5, and a foot 7 is laid on the bottom with horizontal upper surfaces and water guide grooves 6 extending on both sides. Conventionally, the above-mentioned floor 7 is laid by pouring concrete on site.

【0004】[0004]

【発明が解決しようとする課題】コンクリートの現場打
設によって歩床を敷設する方法では、覆工体の施工が全
長にわたって終了するか、またはある程度の距離の施工
が済んだら、覆工体の底部に型枠を設置してコンクリー
トを打設・養生といった手順になるので、トンネルの最
終的な施工完了までの工期が長期化するとともに、大量
(多数)の型枠を要することからコスト的にも不満が生
じていた。また、コンクリート打設の際には、打設部材
の覆工体の底部内周面を清浄な状態にしたり導水溝も設
ける必要があるのでこれに手間がかかるといった問題も
あった。
In the method of laying a floor by pouring concrete on site, when the construction of the lining body is completed over the entire length or after the construction of a certain distance is completed, the bottom portion of the lining body is Since the procedure is to install a formwork into the concrete, place concrete, and cure it, the construction period for the final construction of the tunnel will be prolonged, and a large number (a large number) of formwork will be required. There was dissatisfaction. In addition, when pouring concrete, it is necessary to clean the inner peripheral surface of the bottom of the lining body of the pouring member and to provide a water guide groove, which is troublesome.

【0005】本発明は上記事情に鑑みてなされたもので
あって、施工の容易化、工期の短縮およびコストの低減
が図られるトンネル歩床形成用セグメント及びその敷設
方法を提供することを目的としている。
The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a tunnel footstep forming segment and a method of laying the same which can facilitate the construction, shorten the construction period, and reduce the cost. There is.

【0006】[0006]

【課題を解決するための手段】請求項1記載のトンネル
歩床形成用セグメントは、断面リング状のトンネル覆工
体の底部に、上面が略水平とされてトンネル長手方向に
延びる歩床を形成するセグメントであって、前記覆工体
の内周面に沿った円弧面と、この円弧面を覆工体の底部
内周面に合わせた状態で、略水平となる上面および底部
内周面との間で段差を形成する側面と、前記トンネル長
手方向の一端部上面側に形成された切欠部と、前記トン
ネル長手方向の他端部上面側に形成された係合突部と、
前記一端部側の厚み方向に貫通形成した雌ねじ孔に螺着
された雄ねじとを有する。請求項2記載のトンネル歩床
形成用セグメントの敷設方法は、請求項1記載のトンネ
ル歩床形成用セグメントを用いて歩床を形成する方法で
あって、複数の前記トンネル歩床形成用セグメントを前
記トンネル長手方向に順次並べるようにし、この際、n
−1番目に並べたトンネル歩床形成用セグメントの前記
切欠部に、n番目のトンネル歩床形成用セグメントの前
記係合突部を係合させて、該n番目のトンネル歩床形成
用セグメントの後端部の高さと、前記n−1番目のトン
ネル歩床形成用セグメントの高さを揃え、その後、前記
雄ねじを調節して、前記n番目のトンネル形成用セグメ
ントの前端部の高さを調節することを特徴とする。
According to another aspect of the present invention, there is provided a tunnel floor forming segment, wherein a floor having a ring-shaped cross section is provided with a floor having a substantially horizontal upper surface and extending in the longitudinal direction of the tunnel. Which is a segment, the arcuate surface along the inner peripheral surface of the lining body, with the arcuate surface aligned with the bottom inner peripheral surface of the lining body, a substantially horizontal upper surface and a bottom inner peripheral surface A side surface forming a step between them, a notch formed on the upper surface side of one end in the tunnel longitudinal direction, and an engaging projection formed on the upper surface side of the other end in the tunnel longitudinal direction,
A male screw screwed into a female screw hole penetratingly formed in the thickness direction on the one end side. A method for laying a tunnel footstep forming segment according to claim 2 is a method for forming a footstep using the tunnel footstep forming segment according to claim 1, wherein a plurality of the tunnel footstep forming segments are provided. The tunnels are sequentially arranged in the longitudinal direction, where n
-The engagement protrusions of the n-th tunnel foot-forming segment are engaged with the cutouts of the tunnel foot-forming segments arranged in the 1st order to form the n-th tunnel foot-forming segment. The height of the rear end portion is aligned with the height of the n-1th tunnel foot formation segment, and then the male screw is adjusted to adjust the height of the front end portion of the nth tunnel formation segment. It is characterized by doing.

【0007】[0007]

【作用】本発明によれば、複数のトンネル形成用セグメ
ントをトンネル長手方向に順次並べるようにし、この
際、例えば当初に並べたトンネル歩床形成用セグメント
の切欠部に、次のトンネル歩床形成用セグメントの係合
突部を係合させる。このようにすることにより、次のト
ンネル歩床形成用セグメントの後端部の高さが、当初の
トンネル歩床形成用セグメントの高さに揃うことにな
る。次いで、雄ねじを調節することにより、当該次のト
ンネル歩床形成用セグメントの前端部の高さを定められ
た高さとする。このトンネル歩床形成用セグメントの敷
設方法をくりかえすことにより歩床が形成される。
According to the present invention, a plurality of tunnel forming segments are sequentially arranged in the longitudinal direction of the tunnel. At this time, for example, the next tunnel foot forming is formed in the notch of the initially arranged tunnel foot forming segment. The engaging projections of the working segment are engaged. By doing so, the height of the rear end portion of the next tunnel footstep forming segment is aligned with the height of the original tunnel footstep forming segment. Then, by adjusting the male screw, the height of the front end portion of the next tunnel floor forming segment is set to the predetermined height. A footstep is formed by repeating the laying method of the tunnel footstep forming segment.

【0008】[0008]

【実施例】以下、図面を参照して本発明の一実施例を説
明する。図1は本発明により敷設された歩床を示し、図
2は本発明により敷設された歩床の別の実施例を示す。
また、図3は図4で示したものと同様機能の共同溝であ
るトンネルを示している。すなわちこのトンネルは多数
のセグメント1によりリング2ひいては覆工体3が構築
され、その内部に、電話ケーブルやガス管、上下水道等
の各種公益設備4がハンガー5を介して配設されてい
る。そして、符号11が本実施例方法によって敷設され
た歩床である。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows a floor laid according to the present invention, and FIG. 2 shows another embodiment of the floor laid according to the present invention.
Further, FIG. 3 shows a tunnel which is a common groove having the same function as that shown in FIG. That is, in this tunnel, a ring 2 and then a lining body 3 are constructed by a large number of segments 1, and various utility facilities 4 such as telephone cables, gas pipes, water and sewerage are arranged inside the hanger 5 via a hanger 5. The reference numeral 11 is a floor laid by the method of this embodiment.

【0009】この歩床11は、コンクリート製プレキャ
ストブロック(以下単にブロックと略称)を本体とした
ブロック12で構成されている。このブロック12は平
面視矩形状で、図4に示すように、覆工体3(のセグメ
ント1)の内周面に沿った円弧面13と、この円弧面1
3を覆工体3の底部内周面に合わせた状態で略水平とな
る上面14および底部内周面との間で段差15を形成す
る側面16とを有し、円弧面13の周方向両端には、ト
ンネル長手方向(セグメント1の幅方向)に延びる切欠
き17が形成されている。また、このブロック12の中
央には、上面14から円弧面13にかけて貫通孔18が
形成されている。また、図1のブロック12のトンネル
長手方向の前端部上面側には、切欠部103が形成され
ており、ブロック12のトンネル長手方向の後端部上面
側には、係合突部104が形成されている。また、ブロ
ック12の前端部側には、トンネル周方向に並んで二個
の雌ねじ孔101、101が上下方向に貫通形成されて
おり、各雌ねじ孔101には、それぞれ、雄ねじ102
がその下端部を覆工体3の底部内周面側に突出し得るす
るようにして螺着している。
The floor 11 is composed of a block 12 having a concrete precast block (hereinafter simply referred to as a block) as a main body. The block 12 has a rectangular shape in plan view, and as shown in FIG. 4, an arc surface 13 along the inner peripheral surface of the lining body 3 (segment 1 of the lining body 3) and the arc surface 1
3 has an upper surface 14 that is substantially horizontal when 3 is aligned with the inner peripheral surface of the bottom of the lining body 3 and side surfaces 16 that form a step 15 between the inner peripheral surface of the bottom and both ends of the arc surface 13 in the circumferential direction. A notch 17 extending in the longitudinal direction of the tunnel (widthwise direction of the segment 1) is formed in the. A through hole 18 is formed in the center of the block 12 from the upper surface 14 to the arc surface 13. Further, a notch 103 is formed on the upper surface side of the front end portion in the tunnel longitudinal direction of the block 12 of FIG. 1, and an engaging projection 104 is formed on the upper surface side of the rear end portion of the block 12 in the tunnel longitudinal direction. Has been done. Further, on the front end side of the block 12, two female screw holes 101, 101 are formed penetrating vertically in the circumferential direction of the tunnel, and each of the female screw holes 101 has a male screw 102.
Is screwed so that the lower end thereof can project to the inner peripheral surface side of the bottom of the lining body 3.

【0010】この場合のセグメント1の内周面には、図
3に示すように、周方向に間隔をおいて一対の凸条21
が形成されている。凸条21間の間隔は、ブロック12
の切欠き17間の円弧面13の長さよりもやや長めに設
定されている。これら凸条21はセグメント1の幅方向
全長にわたって延びている。各凸条21は、両者の間の
中心がセグメント1の周方向長さの中心に一致する位置
に形成されている。覆工体3の底部に据え付けられるセ
グメント1は、その周方向長さの中心が最低部に位置す
るよう設定されるが、据え付け誤差が生じることにより
周方向に若干ずれた状態になっても円弧面13を凸条2
1間の内周面に合わせればブロック12の両端部(切欠
き17により肉薄になった部分)22の下面は両凸条2
1の上面全面あるいは一部を覆うように寸法設定がなさ
れている。
In this case, on the inner peripheral surface of the segment 1, as shown in FIG. 3, a pair of projections 21 are provided at intervals in the circumferential direction.
Are formed. The interval between the ridges 21 is the block 12
It is set to be slightly longer than the length of the arc surface 13 between the notches 17. These ridges 21 extend over the entire length of the segment 1 in the width direction. Each of the ridges 21 is formed at a position where the center between them coincides with the center of the circumferential length of the segment 1. The segment 1 installed on the bottom of the lining body 3 is set such that the center of the circumferential length thereof is located at the lowest part, but even if the segment 1 is slightly displaced in the circumferential direction due to an installation error, it is an arc. The ridge 2 on the surface 13
According to the inner peripheral surface between the two, the lower surface of both ends of the block 12 (the portion thinned by the notch 17) 22 is a biconvex strip 2
The size is set so as to cover the entire upper surface or a part of the upper surface of No. 1.

【0011】上記ブロック12により歩床11を敷設す
るには、セグメント1による覆工体3のリング2が1つ
できるごとに、あるいは複数のリング2を接合し終えた
ら、上面14が水平となる状態に円弧面13を覆工体3
の底部内周面に合わせ、かつ隣り合うものどうしの端面
を当接させることにより、トンネル長手方向に並べて配
設する。
In order to lay the footbed 11 by the block 12, the upper surface 14 becomes horizontal every time one ring 2 of the lining body 3 is formed by the segment 1 or when a plurality of rings 2 are joined. The arc surface 13 to the state
Are arranged side by side in the longitudinal direction of the tunnel by aligning with the inner peripheral surface of the bottom part of the above and abutting the end faces of adjacent ones.

【0012】このときには、まず、後方(図1右方)に
設けられたn−1番目のブロック12の前端部上面側に
形成された切欠部103に、その前方(図1左方)に配
置すべきn番目のブロック12の後端部上面側に形成さ
れた係合突部104を前記切欠部103に載置するよう
にして係合する。尚、nはブロック12の設置順を示す
番号である。すると、前方のブロック12の後端部は、
後方のブロック12の切欠部103により支持される。
また、係合突部104は、切欠部103に係合した際
に、前方のブロック12の上面と後方のブロック12の
上面の高さが揃うように形成されており、従って、後方
のブロック12と前方のブロック12は、後方のブロッ
ク12の前端部上面と、前方のブロック12の後端部上
面の高さが揃った状態で係合される。次に、前方のブロ
ック12の前端部側の下面には、雄ねじ102が突出し
ているので、該前端部側は、覆工体3の底部内周面に対
して前記雄ねじ102により支持されている。そこで、
該雄ねじ102を回して、ブロック12に対して上下方
向に移動させることにより、前方のブロック12の前端
部側の高さ位置を調節する。これにより、前方のブロッ
ク12の上面を、後方のブロック12の上面と同じ平面
上に容易に位置させることが出来る。よって、複数のブ
ロック12により形成される歩床11を段差の無い平坦
な上面を有するように形成することが容易に出来る。従
って、該歩床11上を移動して作業する作業員は、段差
につまづくようなことがないので、作業を好適に行なう
ことが出来る。
At this time, first, the notch 103 formed on the upper surface side of the front end of the (n-1) th block 12 provided at the rear (right side in FIG. 1) is arranged at the front (left side in FIG. 1). The n-th block 12 to be engaged is engaged with the engaging projection 104 formed on the upper surface side of the rear end of the block 12 so as to be placed in the notch 103. In addition, n is a number indicating the installation order of the blocks 12. Then, the rear end of the front block 12 is
It is supported by the notch 103 of the rear block 12.
Further, the engagement protrusion 104 is formed so that the heights of the upper surface of the front block 12 and the upper surface of the rear block 12 are aligned when engaged with the notch 103, and therefore, the rear block 12 is formed. The front block 12 and the front block 12 are engaged with each other in a state where the front end upper surface of the rear block 12 and the rear end upper surface of the front block 12 have the same height. Next, since the male screw 102 projects from the lower surface of the front block 12 on the front end side, the front end side is supported by the male screw 102 with respect to the inner peripheral surface of the bottom of the lining body 3. . Therefore,
By rotating the male screw 102 and moving it in the vertical direction with respect to the block 12, the height position of the front block 12 on the front end side is adjusted. Thereby, the upper surface of the front block 12 can be easily located on the same plane as the upper surface of the rear block 12. Therefore, the floor 11 formed by the plurality of blocks 12 can be easily formed to have a flat upper surface without steps. Therefore, the worker who works by moving on the floor 11 does not get caught up in the step, and can perform the work suitably.

【0013】ブロック12をトンネル内で移送および設
置するには一般周知のエレクタを用いるのが望ましく、
そのエレクタのアームは、貫通孔18にねじ込めばよ
い。
It is desirable to use a generally known erector to transfer and install the block 12 in the tunnel,
The arm of the erector may be screwed into the through hole 18.

【0014】次いで、図示しないグラウト材注入管を貫
通孔18にねじ込み、ここからモルタル等のグラウト材
(接着材)Gを注入してブロック12の円弧面13と円
弧面13に対向する覆工体3の底部内周面との間にグラ
ウト材Gを充填し、ブロック12をセグメント1に結合
する。グラウト材Gの充填がほぼ終わったら前記クラウ
ト材注入管を抜き、該管から上面14と面一になるまで
貫通孔18に更にグラウト材Gを充填して貫通孔18を
埋める。また、ブロック12の両側面16と底部内周面
との間に形成される段差15は、導水溝31として構成
される。
Next, a grout material injection pipe (not shown) is screwed into the through hole 18, and a grout material (adhesive material) G such as mortar is injected from here to the arc surface 13 of the block 12 and a covering body facing the arc surface 13. The block 12 is bonded to the segment 1 by filling the grout material G between the inner peripheral surface of the bottom portion 3 and the inner peripheral surface of the bottom portion 3. When the filling of the grout material G is substantially completed, the crout material injection pipe is removed, and the through hole 18 is further filled with the grout material G until the upper surface 14 is flush with the pipe. Further, the step 15 formed between both side surfaces 16 of the block 12 and the bottom inner peripheral surface is configured as a water guiding groove 31.

【0015】以上の方法により多数のブロック12を覆
工体3の底部内周面に続けて並べていくことによりトン
ネル底部には歩床11が敷設される。この歩床11の敷
設方法によれば、予め製造されているブロック12を並
べていくことにより敷設するので、従来のコンクリート
の現場打設方法に比べると、型枠の設置、コンクリート
の打設および養生といった作業を要さないことから、工
期が短縮するとともにコストの低減が図られる。特に、
トンネル全長が完成するのを待つことなく、前述のよう
に、セグメント1による覆工体3のリング2が1つでき
るごとに、あるいは複数のリング2を接合し終えたらブ
ロック12の設置が可能であり、このようにリング2の
完成に追随してブロック12を順次設置していけば、工
期を大幅に短縮させることができる。
By arranging a large number of blocks 12 continuously on the inner peripheral surface of the bottom of the lining body 3 by the above method, the footbed 11 is laid on the bottom of the tunnel. According to this laying method of the floor 11, the blocks 12 which are manufactured in advance are laid by arranging them in advance. Therefore, as compared with the conventional concrete site-casting method, the setting of the formwork, the concrete casting and the curing are performed. Since such work is not required, the construction period can be shortened and the cost can be reduced. In particular,
As described above, the block 12 can be installed every time one ring 2 of the lining body 3 is formed by the segment 1 or after joining the plurality of rings 2 without waiting for the completion of the entire tunnel length. Therefore, if the blocks 12 are sequentially installed following the completion of the ring 2 as described above, the construction period can be significantly shortened.

【0016】また、上記のように型枠を設置する必要が
なく、しかもブロック12の設置と同時に導水溝31が
形成され、さらにはコンクリート打設のために覆工体3
の底部内周面を清浄にする必要もないので、施工の容易
化が促進される。
Further, it is not necessary to install the formwork as described above, and the water guiding groove 31 is formed at the same time when the block 12 is installed. Further, the lining body 3 is used for placing concrete.
Since it is not necessary to clean the inner peripheral surface of the bottom of the, the facilitation of construction is promoted.

【0017】尚、上記実施例においては、図1におい
て、ブロック1のトンネル長手方向の長さを、覆工体3
のセグメント1と等しく設けたが、ブロック1の長さ
は、セグメント1と同じ長さである必要はなく、図2に
示すように、セグメント1二個分の長さであっても良い
ことは勿論である。
In the above embodiment, the length of the block 1 in the tunnel longitudinal direction in FIG.
However, the length of the block 1 does not need to be the same as that of the segment 1 and may be the length of two segments 1 as shown in FIG. Of course.

【0018】[0018]

【発明の効果】以上説明したように、本発明によれば、
トンネルの覆工体の内周面に沿った円弧面と、この円弧
面を覆工体の底部内周面に合わせた状態で略水平となる
上面および底部内周面との間で段差を形成する側面とを
有する複数のトンネル歩床形成用セグメントを、上面が
略水平となる状態に円弧面を覆工体の底部内周面に合わ
せるとともに、相互に近接または接合させてトンネル長
手方向に並べて配設するので、従来のコンクリートの現
場打設方法に比べると、型枠の設置、コンクリートの打
設および養生といった作業を要さないことから、施工の
容易化、工期の短縮およびコストの低減が図られるとい
った効果を奏する。また、nー1番目に並べたトンネル
歩床形成用セグメントの前端部上面側の切欠部にn番目
のトンネル歩床形成用セグメントの後端部上面側に形成
された係合突部を係合することにより、n−1番目のト
ンネル歩床形成用セグメントの前端部と、n番目のトン
ネル歩床形成用セグメントの後端部の高さを揃え、n番
目のトンネル歩床形成用セグメントの前端部側に設けら
れた雄ねじにより、当該トンネル歩床形成用セグメント
の前端部の高さを調節するようにしたので、配設された
複数の前記トンネル歩床形成用セグメントにより形成さ
れる歩床を、段差の無い平坦な上面を有するように形成
することが容易に出来る。
As described above, according to the present invention,
A step is formed between the arcuate surface along the inner surface of the tunnel lining and the top and bottom inner surfaces that are substantially horizontal when the arcuate surface is aligned with the bottom inner surface of the lining. A plurality of tunnel foot forming segments having side surfaces to be aligned, the arc surface is aligned with the bottom inner peripheral surface of the lining body in a state where the upper surface is substantially horizontal, and they are arranged in the tunnel longitudinal direction so as to be close to or joined to each other. Since it is installed, compared to the conventional concrete on-site pouring method, it does not require work such as formwork installation, concrete pouring and curing, which facilitates construction, shortens the construction period, and reduces costs. The effect is achieved. In addition, the engaging projection formed on the rear end upper surface side of the n-th tunnel foot forming segment is engaged with the notch on the front end upper surface side of the n-1st tunnel foot forming segment. By aligning the heights of the front end of the n-1th tunnel foot forming segment and the rear end of the nth tunnel foot forming segment, the front end of the nth tunnel foot forming segment is aligned. Since the height of the front end of the tunnel footstep forming segment is adjusted by the male screw provided on the section side, the footstep formed by the plurality of tunnel footstep forming segments arranged It can be easily formed to have a flat upper surface without steps.

【図面の簡単な説明】[Brief description of drawings]

【図1】図1は本発明により敷設された歩床を示す図で
ある。
FIG. 1 is a diagram showing a floor laid according to the present invention.

【図2】図2は本発明により敷設された歩床の別の実施
例を示す図である。
FIG. 2 is a diagram showing another embodiment of a floor laid according to the present invention.

【図3】図3は本発明の一実施例方法によって敷設され
た歩床を有する共同溝の正断面図である。
FIG. 3 is a front sectional view of a common groove having a floor laid by a method according to an embodiment of the present invention.

【図4】図4は従来方法により敷設された歩床を有する
共同溝の正断面図である。
FIG. 4 is a front sectional view of a common groove having a floor laid by a conventional method.

【符号の説明】[Explanation of symbols]

3…覆工体、11…歩床、12…ブロック(トンネル歩
床形成用セグメント)、13…円弧面、14…上面、1
5…段差、16…側面、101…雄ねじ孔、102…雌
ねじ孔、103…切欠部、104…係合突部。
3 ... Lining body, 11 ... Footstep, 12 ... Block (tunnel footstep forming segment), 13 ... Arc surface, 14 ... Top surface, 1
5 ... Step, 16 ... Side, 101 ... Male screw hole, 102 ... Female screw hole, 103 ... Notch, 104 ... Engagement protrusion.

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】 断面リング状のトンネル覆工体(3)の
底部に、上面(14)が略水平とされてトンネル長手方
向に延びる歩床(11)を形成するセグメントであっ
て、 前記覆工体(3)の内周面に沿った円弧面(13)と、 この円弧面(13)を覆工体(3)の底部内周面に合わ
せた状態で、略水平となる上面(14)および底部内周
面との間で段差(15)を形成する側面(16)と、 前記トンネル長手方向の一端部上面側に形成された切欠
部(103)と、前記トンネル長手方向の他端部上面側
に形成された係合突部(104)と、 前記一端部側の厚み方向に貫通形成した雌ねじ孔(10
1)に螺着された雄ねじ(102)とを有するトンネル
歩床形成用セグメント。
1. A segment for forming a floor (11) having a substantially horizontal upper surface (14) and extending in the tunnel longitudinal direction at the bottom of a tunnel lining body (3) having a ring-shaped cross section. A circular arc surface (13) along the inner peripheral surface of the work body (3) and an upper surface (14) which is substantially horizontal with the circular arc surface (13) aligned with the inner peripheral surface of the bottom portion of the covering body (3) ) And a bottom inner peripheral surface to form a step (15), a notch (103) formed on the upper surface side of one end in the tunnel longitudinal direction, and the other end in the tunnel longitudinal direction. The engaging protrusion (104) formed on the upper surface side of the part, and the female screw hole (10) penetratingly formed in the thickness direction on the one end side.
1) A segment for forming a tunnel floor having a male screw (102) screwed to 1).
【請求項2】 請求項1記載のトンネル歩床形成用セグ
メント(12)を用いて歩床を形成する方法であって、 複数の前記トンネル歩床形成用セグメント(12)を前
記トンネル長手方向に順次並べるようにし、この際、n
−1番目に並べたトンネル歩床形成用セグメント(1
2)の前記切欠部(103)に、n番目のトンネル歩床
形成用セグメント(12)の前記係合突部(104)を
係合させて、該n番目のトンネル歩床形成用セグメント
(12)の後端部の高さと、前記n−1番目のトンネル
歩床形成用セグメント(12)の高さを揃え、その後、
前記雄ねじ(102)を調節して、前記n番目のトンネ
ル形成用セグメント(12)の前端部の高さを調節する
ことを特徴とするトンネル歩床形成用セグメントの敷設
方法。
2. A method for forming a footstep using the tunnel footstep forming segment (12) according to claim 1, wherein a plurality of the tunnel footstep forming segments (12) are provided in the tunnel longitudinal direction. Sequentially arrange, and at this time, n
-Tunnel footing formation segment (1)
The notch (103) of 2) is engaged with the engaging projection (104) of the n-th tunnel footstep forming segment (12) to form the n-th tunnel footstep forming segment (12). ) Aligning the height of the rear end portion with the height of the n-1th tunnel floor forming segment (12), and thereafter,
A method for laying a tunnel floor forming segment, comprising adjusting the height of the front end of the n-th tunnel forming segment (12) by adjusting the male screw (102).
JP09457394A 1994-05-06 1994-05-06 Segment for forming tunnel footstep and method of laying it Expired - Fee Related JP3345165B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP09457394A JP3345165B2 (en) 1994-05-06 1994-05-06 Segment for forming tunnel footstep and method of laying it

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP09457394A JP3345165B2 (en) 1994-05-06 1994-05-06 Segment for forming tunnel footstep and method of laying it

Publications (2)

Publication Number Publication Date
JPH07301096A true JPH07301096A (en) 1995-11-14
JP3345165B2 JP3345165B2 (en) 2002-11-18

Family

ID=14114049

Family Applications (1)

Application Number Title Priority Date Filing Date
JP09457394A Expired - Fee Related JP3345165B2 (en) 1994-05-06 1994-05-06 Segment for forming tunnel footstep and method of laying it

Country Status (1)

Country Link
JP (1) JP3345165B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009167742A (en) * 2008-01-18 2009-07-30 Shimizu Corp Base structure of tunnel
US7865420B1 (en) 2001-01-22 2011-01-04 Voyager Technologies, Inc. Real time electronic commerce telecommunication system and method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7865420B1 (en) 2001-01-22 2011-01-04 Voyager Technologies, Inc. Real time electronic commerce telecommunication system and method
JP2009167742A (en) * 2008-01-18 2009-07-30 Shimizu Corp Base structure of tunnel

Also Published As

Publication number Publication date
JP3345165B2 (en) 2002-11-18

Similar Documents

Publication Publication Date Title
RU2136821C1 (en) Wall structure of expanded material and concrete, method and device for its manufacture
US20140007529A1 (en) System for constructing walls using blocks equipped with coupling means
US5406758A (en) Combined form and drian title, and method of using same
KR101419863B1 (en) Pc panel needless of concrete forms using construction method of cast-in-place step retaining wall for slope reinforcement
US5217326A (en) Supports for building structures
US2472221A (en) Erection of brickwork structures
US6131350A (en) Building foundation using pre-cast concrete elements
KR20070122190A (en) Assembled drainage ditch and construction method of using thereof
GB2240350A (en) Forming foundation beams
JPH07259490A (en) Walk floor laying method for tunnel
JPH07301096A (en) Segment for forming tunnel walk floor and construction method thereof
KR100765908B1 (en) Staircase Block and Staircase Construction Method Using the Staircase Block
JP3052307B2 (en) Concrete overhang structure
KR102598717B1 (en) Member for forming a waterproofing curb and method of constructing an underground structure
KR102118864B1 (en) Method of expanding floor depth of existing underground structure by non-installation method
KR100389535B1 (en) subway open cut structure water proofing method and panel thereby
JPH09151470A (en) Work execution method for underground structure
KR20120072446A (en) Precast segment of the stress ribbon bridge and system/method constructing the stress ribbon bridge by it
JPH03147932A (en) Manufacture of precast pc well
JPH09177249A (en) Joining method for precast ferro-concrete column member
JPS6029292Y2 (en) Semi-prefabricated conduit for underground cable pipes
CN114687371A (en) Assembled prefabricated brick forming die inclined construction method
JPH07247594A (en) Architectural method by use of pc member
JP2836409B2 (en) Construction method of reinforced concrete wall using PC version
JPH07233581A (en) Precast reinforced concrete board and concrete compond slab method

Legal Events

Date Code Title Description
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20020723

LAPS Cancellation because of no payment of annual fees