JPH0423998Y2 - - Google Patents
Info
- Publication number
- JPH0423998Y2 JPH0423998Y2 JP1985013340U JP1334085U JPH0423998Y2 JP H0423998 Y2 JPH0423998 Y2 JP H0423998Y2 JP 1985013340 U JP1985013340 U JP 1985013340U JP 1334085 U JP1334085 U JP 1334085U JP H0423998 Y2 JPH0423998 Y2 JP H0423998Y2
- Authority
- JP
- Japan
- Prior art keywords
- side wall
- cast
- tunnel
- place concrete
- board
- 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
Links
- 239000004567 concrete Substances 0.000 claims description 31
- 229910000831 Steel Inorganic materials 0.000 claims description 10
- 239000010959 steel Substances 0.000 claims description 10
- 238000010276 construction Methods 0.000 description 6
- 238000009415 formwork Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 239000004570 mortar (masonry) Substances 0.000 description 3
- 230000002787 reinforcement Effects 0.000 description 3
- 238000009412 basement excavation Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000011378 shotcrete Substances 0.000 description 1
Description
【考案の詳細な説明】
「考案の利用分野」
この考案は、トンネル側壁構造、特にPC板に
より構築する主として道路用トンネルなどの側壁
部の構造に関するものである。[Detailed Description of the Invention] "Field of Application of the Invention" This invention relates to a tunnel side wall structure, particularly the structure of a side wall part of a road tunnel, etc., which is constructed using a PC board.
「従来の技術」
近年山岳トンネルなどの覆工工法として、吹付
けコンクリートとロツクボルトなどの一次覆工で
地山の荷重を支持した後、二次覆工として現場打
ちコンクリートにより覆工するNATM工法が盛
んに実施されている。``Conventional technology'' In recent years, the NATM method has been adopted as a lining method for mountain tunnels, etc., which supports the load of the ground with a primary lining such as shotcrete and rock bolts, and then uses cast-in-place concrete as a secondary lining. It is being actively implemented.
「考案が解決しようとする問題点」
ところで、NATM工法における二次覆工は現
場打ちコンクリートで施工するため、移動型枠な
どの複雑で大型の型枠を要することに加えて内装
用の化粧モルタル施工を要し、極めて工数が多く
施工が煩雑であると共に、トンネル掘削時の余掘
による打設コンクリート量の増加、乾燥収縮によ
るコンクリートのひび割れ及びクラウン部コンク
リートのブリージングによる強度低下等多くの解
決すべき問題点が指摘されている。``Problems that the invention aims to solve'' By the way, the secondary lining in the NATM construction method is constructed using cast-in-place concrete, which requires complex and large formwork such as movable formwork, as well as the need for decorative mortar for the interior. In addition to requiring a large number of man-hours to construct, the construction is complicated, and there are many problems to be solved, such as an increase in the amount of concrete placed due to over-excavation during tunnel excavation, cracks in the concrete due to drying shrinkage, and a decrease in strength due to breathing of concrete in the crown area. Problems that need to be addressed are pointed out.
そこで、出願人らは近年山岳トンネルなどの覆
工工法として地山の荷重を支保工に支持した後、
この支保工間にPC覆工板を建込み、これを型枠
代りとして地山とPC覆工板との空〓に裏込めコ
ンクリートなどの固結剤を充填して一体化し、地
山の荷重を固結剤とPC覆工板との合成によつて
受持たせることにより型枠及び化粧用モルタル被
覆等を不要とした簡易なトンネル覆工工法を開発
しつつある。 Therefore, in recent years, the applicants have supported the load of the earth on supports as a lining construction method for mountain tunnels, etc.
A PC lining board is erected between this shoring, and this is used as a formwork to fill the space between the earth and the PC lining board with a hardening agent such as backfill concrete to integrate the earth's load. We are developing a simple tunnel lining method that eliminates the need for formwork and decorative mortar coating by combining a hardening agent and a PC lining board.
この考案は、このようなPC覆工板によるPC覆
工構造において、トンネル側壁部の退避用又は歩
行用道路などをPC壁板を用いて簡単かつ体裁よ
く造成できるようにしたトンネル側壁構造を提案
するものである。 This idea proposes a tunnel side wall structure in which an evacuation or walking road for the tunnel side wall can be easily and stylishly created using PC wall boards in such a PC lining structure using PC lining boards. It is something to do.
以下この考案を図面に示す実施例について説明
すると、トンネル路面部１の両側部には、トンネ
ル側壁部２とその壁面から所定間隔を置いて横に
連続して設置したPC側壁板３との空間部に打設
した現場打ちコンクリート４により、退避用又は
歩行用道路５が形成され、この通路５における側
壁部２にはこれに沿つてPC腰壁板６が横に連続
して設置され、このPC腰壁板６と側壁部２との
空間に打設した現場打ちコンクリート７に一体化
されている。 An example of this invention shown in the drawings will be described below. On both sides of the tunnel road surface section 1, there is a space between a tunnel side wall section 2 and a PC side wall plate 3 installed laterally and continuously at a predetermined distance from the wall surface. A road 5 for evacuation or walking is formed by cast-in-place concrete 4 placed in the area, and PC waist wall boards 6 are installed horizontally and continuously along the side wall 2 of this passage 5. It is integrated into the cast-in-place concrete 7 placed in the space between the PC waist wall board 6 and the side wall portion 2.
PC側壁板３は、その背面に鋼材を枠組みしし
て後方に突設したステイ８は固定されており、こ
のステイ８によつて背面を支持して床面に自立的
に設置されるように構成され、またこのステイ８
は現場打ちコンクリート４に対するアンカー筋と
して機能してPC側壁板３をコンクリート４と強
固に一体化させると共に、コンクリート４の打設
時にその重量を受けてPC側壁板３の前方への転
倒を防止する押え材としても機能するようになつ
ている。 The PC side wall plate 3 has a stay 8 fixed to its back that is made of steel and projects backward, and the stay 8 supports the back and allows it to be installed independently on the floor. consists of this stay 8
serves as an anchor reinforcement for the cast-in-place concrete 4 to firmly integrate the PC side wall plate 3 with the concrete 4, and also prevents the PC side wall plate 3 from falling forward due to the weight of the concrete 4 during pouring. It also functions as a presser.
なお、PC側壁板３の下端には、必要に応じて
側溝９を一体に成形しておけば路面部１の施工が
容易となる。 Incidentally, if a gutter 9 is integrally formed at the lower end of the PC side wall plate 3 as required, construction of the road surface section 1 will be facilitated.
腰壁板６はその表面にタイル１０を取付けた方
形PC板からなり、その背面に突設したアンカー
筋１１により現場打ちコンクリート７と一体化
し、またこのコンクリート７はこれに埋設したロ
ツクボルト１２の突出端部により側壁部２に一体
化する。 The waist wall board 6 is made of a rectangular PC board with tiles 10 attached to its surface, and is integrated with cast-in-place concrete 7 through anchor reinforcements 11 protruding from its back surface, and this concrete 7 also supports the protrusion of lock bolts 12 buried therein. The end portion is integrated into the side wall portion 2.
また、腰壁板６内にその上端から下端にかけて
シース１３を埋設しておき、ステイ８に固定して
現場打ちコンクリート４中に埋設したシース１４
からのPC鋼線１５をこのシース１３に通して上
端で緊結することによつて、現場打ちコンクリー
ト４とより強固に一体化することができる。 In addition, a sheath 13 is buried in the waist wall board 6 from the upper end to the lower end, and a sheath 14 is fixed to the stay 8 and buried in the cast-in-place concrete 4.
By passing the PC steel wire 15 from the sheath 13 through this sheath 13 and tightening it at the upper end, it can be more firmly integrated with the cast-in-place concrete 4.
腰壁板６上にはPC覆工板１６が順次トンネル
周壁に沿つてアーチ状に組立てられ、覆工後必要
に応じてPC覆工板１６とトンネル周壁との間〓
に裏込め注入材を注入充填する。 PC lining boards 16 are sequentially assembled in an arch shape along the tunnel peripheral wall on the waist wall board 6, and after lining, if necessary, between the PC lining board 16 and the tunnel peripheral wall.
Inject and fill the backfilling material.
施工に際しては、PC側壁板３をレベル調整し
ながらトンネル側壁部２から所定間隔を置いて順
次横に連設し、それぞれ背面のステイ８によつて
床面に自立的に支持する。 During construction, the PC side wall plates 3 are successively installed laterally at predetermined intervals from the tunnel side wall 2 while adjusting the level, and each is independently supported on the floor by the stay 8 on the back side.
この状態で、PC側壁板３とトンネル側壁部２
との間の空間部に現場打ちコンクリート４を打設
し、道路面に対する側壁を形成すると共に、道路
５を造成する。 In this state, the PC side wall plate 3 and the tunnel side wall 2
Cast-in-place concrete 4 is placed in the space between the two to form a side wall to the road surface and to create a road 5.
次に、腰壁板６を道路５上に吊上げてそのシー
ス１５に下方から突出するPC鋼線１４を通しな
がら通路５上に順次横に連続して設置し、PC鋼
線１４を緊結して現場打ちコンクリート４と一体
化する。 Next, the waist wall board 6 is lifted above the road 5, and the PC steel wires 14 protruding from below are passed through the sheath 15, and the PC steel wires 14 are successively installed horizontally and continuously on the passageway 5, and the PC steel wires 14 are tightened. Integrates with cast-in-place concrete 4.
なお、各腰壁板６は側壁部２に突設した連結金
物などにより簡単に連結支持しておく。 In addition, each waist wall board 6 is easily connected and supported by connecting hardware etc. provided protruding from the side wall portion 2.
この状態で、腰壁板６とトンネル側壁部２との
間の空間部に現場打ちコンクリート７を打設し、
側壁部２及び現場打ちコンクリート４に一体に固
定する。 In this state, cast-in-place concrete 7 is placed in the space between the waist wall board 6 and the tunnel side wall 2,
It is integrally fixed to the side wall portion 2 and cast-in-place concrete 4.
そして、腰壁板６の上端に覆工板１６を接合
し、順次覆工板１６を組上げながらトンネル周壁
を覆工し、必要に応じて周壁との間〓に裏込め材
を収入充填する。 Then, the lining plate 16 is joined to the upper end of the waist wall board 6, and the tunnel peripheral wall is lined while sequentially assembling the lining board 16, and the space between the tunnel wall and the peripheral wall is filled with backfilling material as necessary.
「考案の効果」
以上の通りこの考案によれば、PC側壁板はそ
の裏面側に突設した鋼材製ステイによつて自立さ
せながら簡単に連設することができると共に、ス
テイは打設した現場打ちコンクリートに対するア
ンカー筋として機能してPC側壁板をコンクリー
トを強固に一体化させると共に、コンクリートの
打設時にその重量を受けてPC側壁板の前方への
転倒を防止する抑え材としても機能し、型枠等の
仮設機材を要することなく極めて簡単な工程でト
ンネル側壁部に通路を造成することができる。``Effects of the invention'' As described above, according to this invention, the PC side wall panels can be easily connected to each other while being self-supporting by means of the steel stays protruding from the back side, and the stays can be installed at the site where they are placed. It functions as an anchor reinforcement for poured concrete to firmly integrate the PC side wall board with the concrete, and also functions as a restraining material to prevent the PC side wall board from falling forward under the weight of concrete when it is poured. A passageway can be created in a tunnel side wall through an extremely simple process without requiring temporary equipment such as formwork.
この通路はその側壁を表面性状が平滑なPC側
壁板で覆工されるので、側壁面に化粧モルタル等
を要することなく外観体裁のよい平滑な面に仕上
げることができる。 The side walls of this passage are lined with PC side wall boards with smooth surfaces, so the side walls can be finished with smooth surfaces that look good without requiring decorative mortar or the like.
現場打ちコンクリート上に設置したPC腰壁板
は現場打ちコンクリートから突出したPC鋼線で
緊結されて、この現場打ちコンクリートとより強
固に一体化され、さらに型枠を要することなくそ
の背面に打設した現場打ちコンクリートと確実に
一体化することができ、しかもPC腰壁板表面に
予めタイル等の化粧を施しておくことにより、化
粧のための後施工を要することなく外観体裁よく
仕上げることが可能となる。 The PC wall panels installed on the cast-in-place concrete are tied together with PC steel wires that protrude from the cast-in-place concrete, and are more firmly integrated with the cast-in-place concrete, and can be cast on the back side without the need for formwork. It can be reliably integrated with cast-in-place concrete, and by applying decoration such as tiles to the surface of the PC waist wall board in advance, it is possible to create a good-looking finish without the need for post-construction for decoration. becomes.
図はこの考案の実施例を示す部分縦断面図であ
る。
１……トンネル路面部、２……トンネル側壁
部、３……PC側壁板、４……現場打ちコンクリ
ート、５……通路、６……腰壁板、８……ステ
イ。
The figure is a partial vertical sectional view showing an embodiment of this invention. 1... Tunnel road surface, 2... Tunnel side wall, 3... PC side wall plate, 4... Cast-in-place concrete, 5... Passageway, 6... Waist wall plate, 8... Stay.
Claims (1)
PC側壁板がトンネル路面部の両側部にトンネ
ル側壁部から所定間隔を置いて横に連続して設
置され、このPC側壁板はこれと前記トンネル
側壁部との間に打設した現場打ちコンクリート
に一体化されており、前記現場打ちコンクリー
ト上にPC腰壁板が設置され、このPC腰壁板は
前記現場打ちコンクリートから突出するPC鋼
線を挿通してその上端で緊結され、かつこれと
前記トンネル側壁部との間に打設した現場打ち
コンクリートにより一体化されていることを特
徴とするトンネル側壁構造。 ２ 腰壁板上には、トンネル周壁に沿つて順次
PC覆工板を組上げてなることを特徴とする実
用新案登録請求の範囲第１項記載のトンネル側
壁構造。[Scope of claims for utility model registration] 1. Supported by a steel stay protruding from the back side.
PC side wall plates are installed horizontally and continuously on both sides of the tunnel road surface at a predetermined distance from the tunnel side wall, and these PC side wall plates are placed on cast-in-place concrete placed between this and the tunnel side wall. A PC waist wall board is installed on the cast-in-place concrete, and the PC steel wire protruding from the cast-in-place concrete is inserted through the PC steel wire and connected at its upper end. A tunnel side wall structure characterized by being integrated with the tunnel side wall by cast-in-place concrete placed between the tunnel side walls. 2 On the waist wall board, there are
The tunnel side wall structure according to claim 1 of the utility model registration claim, characterized in that it is formed by assembling PC lining plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985013340U JPH0423998Y2 (en) | 1985-02-01 | 1985-02-01 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985013340U JPH0423998Y2 (en) | 1985-02-01 | 1985-02-01 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61130694U JPS61130694U (en) | 1986-08-15 |
| JPH0423998Y2 true JPH0423998Y2 (en) | 1992-06-04 |
Family
ID=30497256
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985013340U Expired JPH0423998Y2 (en) | 1985-02-01 | 1985-02-01 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0423998Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7339141B2 (en) * | 2019-12-06 | 2023-09-05 | 株式会社奥村組 | Tunnel covering structure and covering panel member |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5910347B2 (en) * | 1973-09-24 | 1984-03-08 | チバ ガイギ− アクチエンゲゼルシヤフト | Production method of new imidazole compound |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS506127U (en) * | 1973-05-12 | 1975-01-22 | ||
| JPS5910347U (en) * | 1982-07-07 | 1984-01-23 | 尾形 功 | Concrete earth retaining wall |
-
1985
- 1985-02-01 JP JP1985013340U patent/JPH0423998Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5910347B2 (en) * | 1973-09-24 | 1984-03-08 | チバ ガイギ− アクチエンゲゼルシヤフト | Production method of new imidazole compound |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61130694U (en) | 1986-08-15 |
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