JPH0434680B2 - - Google Patents
Info
- Publication number
- JPH0434680B2 JPH0434680B2 JP61137175A JP13717586A JPH0434680B2 JP H0434680 B2 JPH0434680 B2 JP H0434680B2 JP 61137175 A JP61137175 A JP 61137175A JP 13717586 A JP13717586 A JP 13717586A JP H0434680 B2 JPH0434680 B2 JP H0434680B2
- Authority
- JP
- Japan
- Prior art keywords
- lining
- tunnel
- unit
- support frame
- piece
- 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.)
- Expired - Lifetime
Links
- 238000009434 installation Methods 0.000 claims description 10
- 238000010276 construction Methods 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000009412 basement excavation Methods 0.000 description 2
- 239000004570 mortar (masonry) Substances 0.000 description 2
- 238000005034 decoration Methods 0.000 description 1
- 238000009415 formwork Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000007592 spray painting technique Methods 0.000 description 1
Landscapes
- Lining And Supports For Tunnels (AREA)
Description
【発明の詳細な説明】
「発明の利用分野」
この発明は、主としてNATMトンネルなどの
比較的地山の安定したトンネルの覆工工法に関す
るものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention mainly relates to a method for lining tunnels with relatively stable ground, such as NATM tunnels.
「従来の技術、発明が解決せんとする問題点」
出願人らは、先にトンネル側壁に固設した左右
の側壁コンクリートの上端間に四枚の円弧型覆工
板を地山に沿つてアーチ状に組立て、前記アーチ
の左右側壁に位置する覆工板の下端を前記側壁コ
ンクリートに固定すると共に、上端部をアンカー
を介して地山に固定し、前記アーチのクラウン部
の覆工板をピン継手を介して前記側壁覆工板間に
接合することにより、二次覆工板としての現場打
ちコンクリート施工による型枠、打設コンクリー
トの不完全性等の問題を解消して安全かつ安定し
たトンネルを構築できると共に、トンネル内部断
面の拡大化と掘削断面の縮小化を可能とし、しか
もトンネル内部の化粧が容易で、施工性、経済性
に優れた信頼性の高いトンネル覆工工法を開発し
たが、覆工板をいかに経済的かつ能率的に建込む
かにつき解決すべき困難な課題があつた。"Prior Art and Problems to be Solved by the Invention" Applicants previously installed four arc-shaped lining plates in an arch along the ground between the upper ends of the left and right side wall concrete that had been fixed to the tunnel side walls. The lower ends of the lining plates located on the left and right side walls of the arch are fixed to the side wall concrete, the upper ends are fixed to the ground via anchors, and the lining plates at the crown part of the arch are fixed to the ground. By connecting the side wall lining plates through joints, problems such as imperfections in formwork and poured concrete due to cast-in-place concrete construction as secondary lining plates are solved, creating a safe and stable tunnel. We have developed a highly reliable tunnel lining method that allows for the construction of tunnels, enlarges the tunnel's internal cross section, and reduces the excavated cross section, and also allows for easy decoration of the tunnel's interior. There was a difficult problem to be solved as to how to erect the lining board economically and efficiently.
「問題点を解決するための手段」
この発明は、内外方向に拡張収縮自在としたア
ーチ状の支持フレームを昇降自在に設けた組立運
搬台車上において、複数枚の覆工板をアーチ状に
組立てて天端部において屈曲自在の単位覆工ピー
スを形成し、この組立運搬台車をその支持フレー
ムを下降かつ内側に収縮させた状態で単位覆工ピ
ースと共にトンネル内に敷設したレールに沿つて
前進走行し、据付け位置において支持フレームを
上昇させると共に外側に拡張して単位覆工ピース
の両側壁部下端をトンネル側壁に設置した腰壁上
に固定した後、組立運搬台車をその支持フレーム
を下降かつ内側に収縮させた状態で後退して同様
に組立た単位覆工ピースを組立運搬台車と共に据
付け位置まで搬送し、先行の単位覆工ピースに後
続の単位覆工ピースを順次連続的に接合しながら
据付け固定することにより、仮設機材を要するこ
となく自立させながら安定したトンネルを構築で
きると共に、坑外で覆工板を容易かつ強固に組立
てて坑口側から坑内に搬送しながら簡単に覆工す
ることができ、掘削施工と併行して覆工施工を行
うことを可能とした施工性、経済性に優れた信頼
性の高いトンネル覆工工法を提案するものであ
る。``Means for Solving the Problems'' The present invention involves assembling a plurality of lining plates in an arch shape on an assembly transport cart equipped with an arch-shaped support frame that can be expanded and contracted in both the inside and outside directions and can be moved up and down. A bendable unit lining piece is formed at the top end of the assembly, and the assembled transport vehicle is moved forward along the rails laid in the tunnel together with the unit lining piece with its support frame lowered and contracted inward. Then, at the installation position, the support frame is raised and expanded outward to fix the lower ends of both side walls of the unit lining piece on the waist walls installed on the tunnel side walls, and then the assembly and transportation cart is lowered and expanded inward by the support frame. The unit lining piece is then moved back in the contracted state, and the similarly assembled unit lining piece is transported to the installation position together with the assembly transport trolley, and the subsequent unit lining piece is successively joined to the preceding unit lining piece and installed. By fixing the tunnel, it is possible to construct a stable tunnel that stands on its own without the need for temporary equipment, and the lining plate can be easily and firmly assembled outside the mine, and the lining can be easily installed while being transported from the tunnel entrance to the mine. This project proposes a highly reliable tunnel lining method that is easy to construct, economical, and allows lining construction to be carried out simultaneously with excavation work.
「実施例」
以下この発明を図面に示す実施例について説明
すると、先ず掘削したトンネルの側壁部に地山に
固定した腰壁１を構築し、更に中央部にレール２
を坑外まで敷設し、このレール２上に組立運搬台
車３を走行移動自在に設置する。``Example'' Below, an example of the present invention shown in the drawings will be described. First, a waist wall 1 fixed to the ground is constructed on the side wall of an excavated tunnel, and a rail 2 is further installed in the center.
is laid to the outside of the mine, and an assembly transport cart 3 is installed on this rail 2 so as to be movable.
組立運搬台車３は門型に形成され、その支脚３
ａがジヤツキ等により上下に伸縮自在として全体
的に昇降自在に構成されており、その上部には鋼
材等により地山周壁に倣つてアーチ状に形成され
た支持フレーム４が設置されている。 The assembly transport trolley 3 is formed into a gate shape, and its supporting legs 3
A is vertically expandable and retractable by means of jacks, etc., so that it can be raised and lowered as a whole, and a support frame 4 made of steel or the like is installed in the shape of an arch to follow the surrounding wall of the earth.
支持フレーム４は、アーチ天端部において支柱
４ａの左右に基端を俯仰自在に枢着した弓型の可
動フレーム４ｂ，４ｂから構成され、各可動フレ
ーム４ｂをこれと台車３との間に連結したジヤツ
キ５により回動させることにより、内外方向に拡
張又は収縮するようになつている。 The support frame 4 is composed of bow-shaped movable frames 4b, 4b, whose base ends are pivoted to the left and right sides of the pillar 4a at the top end of the arch so as to be able to move up and down freely, and each movable frame 4b is connected between this and the trolley 3. By rotating it with a jack 5, it is expanded or contracted in the inner and outer directions.
そして、坑外において支持フレーム４の左右の
可動フレーム４ｂ上にそれぞれクレーンなどで吊
上げた左右各２枚PC覆工板Ｋを支持しながら、
相互の覆工板Ｋ，Ｋ相互を周方向及びスパン方向
にPC鋼材でプレストレスを導入しながら一体に
結合したり、或いはボルトなどのジヨイント部材
で結合し、天端において左右の覆工板Ｋ相互をナ
ツクルジヨイント等により屈曲自在に（ピンヒン
ジ）突き合せ、３ヒンジアーチとして自立性のあ
る単位覆工ピースＰを形成する。 Then, while supporting two left and right PC lining plates K lifted by cranes etc. on the left and right movable frames 4b of the support frame 4 outside the mine,
The mutual lining plates K and K can be joined together by introducing prestress in the circumferential and span directions using prestressed steel materials, or they can be connected with joint members such as bolts, and the left and right lining plates K can be connected at the top end. They are butted against each other in a flexible manner (pin hinge) using a nut joint or the like to form a self-supporting unit lining piece P as a three-hinge arch.
このようにして２〜４リングを一体化した単位
覆工ピースＰが組上がつた状態で、支持フレーム
４を約300mm程度下降させ、更に可動フレーム４
ｂをジヤツキ５により内側に300mm引寄せた上で
予め地山に防水シートを張設したトンネル内に前
進走行させ、これと共に単位覆工ピースＰを先ず
トンネル内の坑口付近の据付け位置に搬送する。 With the unit lining piece P that integrates 2 to 4 rings assembled in this way, the support frame 4 is lowered by about 300 mm, and the movable frame 4
B is pulled inward by 300 mm by the jack 5 and then moved forward into the tunnel in which a waterproof sheet has been stretched over the ground in advance, and together with this, the unit lining piece P is first transported to the installation position near the tunnel entrance. .
なお、諸設備の設置のために覆工板Ｋに切欠き
を設ける場合には、その周囲を鋼製フレームにて
補強する。 In addition, when notches are provided in the lining plate K for installation of various equipment, the periphery thereof is reinforced with a steel frame.
そして、据付け位置において支持フレーム４を
約450mm程度上昇させると共に、可動フレーム４
ｂを外側に押出して単位覆工ピースＰの両側下端
を腰壁１上に据付け固定する。 Then, the support frame 4 is raised by about 450 mm at the installation position, and the movable frame 4
b is pushed out to the outside, and the lower ends of both sides of the unit lining piece P are installed and fixed on the waist wall 1.
次いで、空になつた組立運搬台車３を下降さ
せ、更に可動フレーム４ｂをジヤツキ５により内
側に引寄せて収縮させた状態で坑外に後退走行さ
せ、再び単位覆工ピースＰを組立て、順次同様に
トンネル内に搬送して先行の単位覆工ピースＰに
連続的に接合しながら腰壁１上に固定する。 Next, the empty assembly transport cart 3 is lowered, and the movable frame 4b is pulled inward by the jacks 5 and moved backwards outside the mine in a contracted state, and the unit lining pieces P are assembled again, and the same procedure is repeated. Then, it is transported into the tunnel and fixed onto the waist wall 1 while being continuously joined to the preceding unit lining piece P.
この場合、組立運搬台車３を２台用意してお
き、１号台車３がトンネル内にいる間に坑外の２
号台車３において単位覆工ピースＰを組立ててお
き、交互に搬送すれば、施工を迅速かつ能率化す
ることができる。 In this case, two assembly transport carts 3 are prepared, and while the first cart 3 is inside the tunnel, two
By assembling the unit lining pieces P in the numbered truck 3 and transporting them alternately, construction can be carried out quickly and efficiently.
このようにして坑口までの全長の単位覆工ピー
スＰの据付け覆工が完了した後、予め覆工板Ｋに
設けた注入孔から地山と覆工板Ｋとの間隙にエア
モルタル等の裏込め材６を注入充填し、覆工板Ｋ
を地山と一体化させる。 After the installation of the unit lining piece P for the entire length up to the mine entrance is completed in this way, a backing such as air mortar is applied to the gap between the ground and the lining plate K through the injection hole previously provided in the lining plate K. Filling material 6 is injected and lining board K is filled.
be integrated with the ground.
「発明の効果」
以上の通りこの発明によれば、左右一対の可動
フレームを天端部において枢着して内外方向に拡
張収縮自在としたアーチ状の支持フレームを昇降
自在に設けた組立運搬台車上において、複数枚の
覆工板をアーチ状に組立てて天端部において屈曲
自在の単位覆工ピースを形成し、この組立運搬台
車をその支持フレームを下降かつ内側に収縮させ
た状態で単位覆工ピースと共にトンネル内に敷設
したレールに沿つて前進走行し、据付け位置にお
いて支持フレームを上昇させると共に外側に拡張
して前記単位覆工ピースの両側壁部下端をトンネ
ル側壁に設置した腰壁上に固定した後、組立運搬
台車をその支持フレームを下降かつ内側に収縮さ
せた状態で後退して同様に組立た単位覆工ピース
を組立運搬台車と共に据付け位置まで搬送し、先
行の単位覆工ピースに後続の単位覆工ピースを順
次連続的に接合しながら据付け固定するので、特
別な建込み装置を要することなく坑外で覆工板を
容易かつ強固に組立てて坑内に搬送しながら簡単
に覆工することができ、しかも掘削施工と併行し
て覆工施工を行うことを可能となると共に、単位
覆工ピースを仮設機材を要することなく自立させ
ながら安定したトンネルを構築でき、施工性、経
済性に優れた信頼性の高いトンネル覆工が可能と
なる。``Effects of the Invention'' As described above, according to the present invention, an assembly transport trolley is provided with a pair of left and right movable frames pivotally connected at the top end and an arch-shaped support frame that can be expanded and contracted in the inside and outside directions and can be raised and lowered. Above, a plurality of lining plates are assembled in an arch shape to form a bendable unit lining piece at the top end, and the unit lining piece is assembled and transported with its support frame lowered and contracted inward. The unit lining piece travels forward along the rails laid in the tunnel, and at the installation position, the support frame is raised and expanded outward so that the lower ends of both side walls of the unit lining piece are placed on the waist wall installed on the tunnel side wall. After fixing, the assembly transport vehicle is moved backward with its support frame lowered and contracted inward, and similarly assembled unit lining pieces are transported together with the assembly transport vehicle to the installation position, and then attached to the preceding unit lining piece. Since subsequent unit lining pieces are installed and fixed while being joined one after another, the lining plate can be easily and firmly assembled outside the mine without the need for special construction equipment, and the lining can be easily constructed while being transported into the mine. Furthermore, it is possible to perform lining construction simultaneously with excavation construction, and a stable tunnel can be constructed while each unit lining piece stands on its own without the need for temporary equipment, making it easier to construct and more economical. This enables highly reliable tunnel lining with excellent performance.
また、表面性状が平滑な覆工板で覆工されるの
で、化粧モルタル等を要することなく内面に凹凸
のない平滑な面に仕上げられ、吹付け塗装或いは
タイル張り等によりトンネル内面の化粧を容易に
行うことができ、施工性、経済性に優れた信頼性
の高いトンネルを構築することができる。 In addition, since the tunnel is lined with a lining board with a smooth surface, the inner surface is finished with no unevenness without the need for decorative mortar, and the inner surface of the tunnel can be easily decorated by spray painting or tiling. It is possible to construct a highly reliable tunnel that is easy to construct and economically efficient.
更に、覆工板と地山との間に裏込め材を注入充
填することにより、地山と一体化したより強固な
トンネルとすることができる。 Furthermore, by injecting and filling a backfilling material between the lining board and the ground, a stronger tunnel that is integrated with the ground can be created.
第１図はこの発明により構築されたトンネルの
縦断正面図、第２図はこの発明の覆工板の組立状
態を示す正面図、第３図はこの発明の施工状態を
示す縦断側面図、第４図は支持フレームの作動状
況に応じた単位覆工ピースの動きを示す正面図で
ある。
１……腰壁、３……組立運搬台車、４……支持
フレーム、４ｂ……可動フレーム、５……ジヤツ
キ、６……裏込め材、Ｋ……覆工板、Ｐ……単位
覆工ピース。
FIG. 1 is a vertical sectional front view of a tunnel constructed according to the present invention, FIG. 2 is a front view showing the assembled state of the lining plate of the present invention, and FIG. 3 is a vertical sectional side view showing the construction state of the present invention. FIG. 4 is a front view showing the movement of the unit lining piece according to the operating status of the support frame. 1... Waist wall, 3... Assembly transport trolley, 4... Support frame, 4b... Movable frame, 5... Jacket, 6... Backfill material, K... Lining board, P... Unit lining piece.
Claims (1)
着して内外方向に拡張収縮自在としたアーチ状の
支持フレームを昇降自在に設けた組立運搬台車上
において、複数枚の覆工板をアーチ状に組立てて
天端部において屈曲自在の単位覆工ピースを形成
し、前記組立運搬台車をその支持フレームを下降
かつ内側に収縮させた状態で前記単位覆工ピース
と共にトンネル内に敷設したレールに沿つて前進
走行し、据付け位置において前記支持フレームを
上昇させると共に外側に拡張して前記単位覆工ピ
ースの両側壁部下端をトンネル側壁に設置した腰
掛上に固定した後、前記組立運搬台車をその支持
フレームを下降かつ内側に収縮させた状態で後退
して同様に組立た単位覆工ピースを組立運搬台車
と共に据付け位置まで搬送し、先行の単位覆工ピ
ースに後続の単位覆工ピースを順次連続的に接合
しながら据付け固定することを特徴とするトンネ
ル覆工工法。 ２ 覆工板と地山との間隙に裏込め材を注入して
覆工板と一体化することを特徴とする特許請求の
範囲第１項記載のトンネル覆工工法。[Scope of Claims] 1. A plurality of coverings are mounted on an assembly transport cart equipped with a pair of left and right movable frames pivoted at the top end and capable of expanding and contracting in and out directions. Assemble the work boards in an arch shape to form a bendable unit lining piece at the top end, and move the assembled transport truck together with the unit lining piece into the tunnel with its support frame lowered and contracted inward. The unit lining piece is moved forward along the laid rail, and at the installation position, the support frame is raised and expanded outward to fix the lower ends of both side walls of the unit lining piece on seats installed on the tunnel side wall, and then the assembly is completed. The transport vehicle is moved backward with its support frame lowered and contracted inward, and the similarly assembled unit lining pieces are transported together with the assembled transport vehicle to the installation position, and the following unit lining is attached to the preceding unit lining piece. A tunnel lining construction method characterized by installing and fixing pieces while sequentially joining them. 2. The tunnel lining method according to claim 1, characterized in that a backfilling material is injected into the gap between the lining plate and the ground to integrate it with the lining plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61137175A JPS62291398A (en) | 1986-06-12 | 1986-06-12 | Tunnel covering construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61137175A JPS62291398A (en) | 1986-06-12 | 1986-06-12 | Tunnel covering construction method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62291398A JPS62291398A (en) | 1987-12-18 |
| JPH0434680B2 true JPH0434680B2 (en) | 1992-06-08 |
Family
ID=15192566
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61137175A Granted JPS62291398A (en) | 1986-06-12 | 1986-06-12 | Tunnel covering construction method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62291398A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0663438B2 (en) * | 1989-04-05 | 1994-08-22 | 佐藤工業株式会社 | Segment assembly method in shield method |
-
1986
- 1986-06-12 JP JP61137175A patent/JPS62291398A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62291398A (en) | 1987-12-18 |
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