JPH035598A - Cylindrical wall for covering boring hole - Google Patents
Cylindrical wall for covering boring holeInfo
- Publication number
- JPH035598A JPH035598A JP1138326A JP13832689A JPH035598A JP H035598 A JPH035598 A JP H035598A JP 1138326 A JP1138326 A JP 1138326A JP 13832689 A JP13832689 A JP 13832689A JP H035598 A JPH035598 A JP H035598A
- Authority
- JP
- Japan
- Prior art keywords
- section
- cross
- cylindrical wall
- main
- lining
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000010276 construction Methods 0.000 abstract description 8
- 230000008878 coupling Effects 0.000 abstract 1
- 238000010168 coupling process Methods 0.000 abstract 1
- 238000005859 coupling reaction Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 4
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Landscapes
- Lining And Supports For Tunnels (AREA)
Abstract
Description
【発明の詳細な説明】
「産業上の利用分野」
本発明は、2連形の掘削穴の覆工を行うために組み立て
られる覆工用筒状壁体に関するものである。DETAILED DESCRIPTION OF THE INVENTION "Field of Industrial Application" The present invention relates to a lining cylindrical wall body assembled for lining a double excavation hole.
「従来の技術」
近年、鉄道用トンネルなどの大断面トンネル構造物を構
築するための大断面シールド工法として、復円形特殊断
面シールド工法と呼ばれるものが0行なわれるようにな
った。この工法は、円筒状のシールド掘削機を2基連結
した構造のシールド掘削機を用いて、円が2つその一部
が重なった状態で連なる形の断面形状に、地山あるいは
地盤を掘削し、この掘削された穴の内面に、RCセグメ
ントを組み立てて筒状壁体を形成してこの筒状壁体を穴
に沿って複数連結しく一次覆工)、この−法覆工のセグ
メントの背面、すなわちセグメントと地山との間の空隙
を埋める注入材を充填した後、−法覆工の内面にコンク
リートを巻き立て(二次覆工)、それらによって地山を
支持して所定の内空を構成するというものである。"Prior Art" In recent years, as a large-section shield construction method for constructing large-section tunnel structures such as railway tunnels, a method called a rectangular special section shield construction method has come into use. This construction method uses a shield excavator, which has a structure in which two cylindrical shield excavators are connected, to excavate the ground or the ground in a cross-sectional shape of two circles, with some of them overlapping. , RC segments are assembled on the inner surface of this excavated hole to form a cylindrical wall body, and a plurality of these cylindrical wall bodies are connected along the hole (primary lining), and the back side of the segment of this method lining. In other words, after filling the gap between the segment and the ground with the injection material, - concrete is rolled up on the inner surface of the method lining (secondary lining), supporting the ground and filling the predetermined inner space. It is said that it constitutes.
従来、前記の工程で構築する筒状壁体としては、例えば
、第4図に示すものが知られている。第4図は、従来の
筒状壁体の例を示すものである。この筒状壁体1−0は
、左右に円が連なる形態の掘削穴に用いられるもので、
具体的には、円弧版状のセグメント11を連結して断面
C字状、断面逆C字状の主壁部12,12を構築し、こ
れら主壁部の上端部間および下端部間に分岐部セグメン
ト13.13を連結し上下に位置する分岐部セグメント
13.13間に中柱14を建て込み、このようにして構
築した眼鏡枠状の壁体を掘削穴の軸方向に順次連結して
なるものである。Conventionally, as a cylindrical wall constructed by the above-mentioned process, for example, the one shown in FIG. 4 is known. FIG. 4 shows an example of a conventional cylindrical wall. This cylindrical wall body 1-0 is used for an excavation hole in which circles are connected from side to side.
Specifically, arc-shaped segments 11 are connected to construct main walls 12, 12 having a C-shaped cross section and an inverted C-shaped cross section, and branches are formed between the upper and lower ends of these main walls. The middle pillars 14 are built between the upper and lower branch segments 13.13, and the eyeglass frame-shaped walls constructed in this way are successively connected in the axial direction of the excavated hole. It is what it is.
前記の筒状壁体を構成するセグメント11、分岐部セグ
メント13,13、中柱14はボルト・ナツトにより連
結されており、前記の各部材にはボルト・ナツトによる
連結部としてボルト挿通孔15aの形成された継手金具
15.15・・・が埋設されている。The segments 11, the branch segments 13, 13, and the middle pillar 14 that constitute the cylindrical wall body are connected by bolts and nuts, and each member has a bolt insertion hole 15a as a connection part by the bolts and nuts. The formed joint fittings 15, 15... are buried.
なお、左右の主壁部12,12の上下を連結する分岐部
セグメント13は、コンクリートにより外観Y字状に一
体成形されたものが用いられており、その具体的構成は
、分岐部セグメント13において、その端面が中柱14
と連結される断面方形の基813 cと、この基部13
cから分岐してそれぞれの端面が主壁部12,12と連
結さ°れる連結腕部13a、13bとからなる基本構造
となっている。The branch segment 13 that connects the upper and lower parts of the left and right main walls 12, 12 is made of concrete and is integrally molded into a Y-shape in appearance. , whose end face is the center pillar 14
a base 813c with a square cross section connected to the base 13;
The basic structure consists of connecting arm portions 13a and 13b which branch out from c and whose end faces are connected to the main wall portions 12 and 12, respectively.
「発明が解決しようとする課題」
このような従来の筒状壁体10にあっては、その構築に
おいて、分岐部セグメント13.13の間に中柱14を
連て込む工程を必要とするが、この中114は筒状壁体
lOを構成するセグメント11に比して大型であるため
、その組み付は作業に手間がかかるという問題がある。``Problems to be Solved by the Invention'' In constructing such a conventional cylindrical wall body 10, a step of bringing the center pillar 14 between the branch segments 13, 13 is required. Since the inside 114 is larger than the segment 11 constituting the cylindrical wall 10, there is a problem that assembling it takes time and effort.
また主壁部12.12を形成するセグメントIIの間に
外観Y字状の分岐部セグメント1.3.13を介在配置
し、これら分岐部セグメント13.13の間に中柱14
を位置させる構造上、分岐部セグメント13゜13の位
置精度が要求され、しかも分岐部セグメント13.13
は、連結腕部13a、13bにセグメント1 !、11
、基部13cに中柱14が連結される構造上、分岐部セ
グメント13.13自身の寸法精度も良好でなければな
らず、コストが高くなっている。。Further, a branch segment 1.3.13 having a Y-shaped appearance is interposed between the segments II forming the main wall 12.12, and a middle pillar 14 is disposed between these branch segments 13.13.
Due to the structure in which the branch segment 13.13 is positioned, positional accuracy is required for the branch segment 13.
The segment 1 is attached to the connecting arms 13a and 13b! , 11
Due to the structure in which the middle pillar 14 is connected to the base 13c, the branch segment 13.13 itself must have good dimensional accuracy, which increases the cost. .
本発明は前記事情に鑑みてなされたもので、現場での施
工が容易で、その作業能率を向上させることができ、施
工コストの低減を図ることのできる掘削穴の覆工用筒状
壁体を提供することを目的とする。The present invention has been made in view of the above circumstances, and is a cylindrical wall body for lining an excavated hole that can be easily constructed on site, improves work efficiency, and reduces construction costs. The purpose is to provide
「課題を解決するための手段」
本発明の覆工用筒状壁体は、断面円形の2つの掘削穴が
互いにそれらの一部が重なるごとく形成された掘削穴の
覆工用筒状壁体であって、この覆工用筒状壁体は複数の
円弧版状セグメントより構成される断面C字状主壁部お
よび断面逆C字状主壁部とその上端部および下端部を連
結する中柱とからなり、これら主壁部の上端部および下
端部にはそれぞれ断面り字状の板が一対対向して設けら
れ、さらに面記中柱の両端には平板が設けられ、前記断
面り字状の板と中柱の平板とをボルト結合することによ
り、前記主壁の上端部および下端部が中柱によって連結
されていることを特徴とすることによって前記目的を達
成した。"Means for Solving the Problems" The cylindrical wall body for lining of the present invention is a cylindrical wall body for lining an excavated hole in which two excavated holes each having a circular cross section are formed so that a portion of the holes overlap each other. This lining tubular wall body has a main wall portion with a C-shaped cross section and a main wall portion with an inverted C-shaped cross section, each of which is composed of a plurality of circular arc plate-shaped segments, and a middle wall connecting the upper and lower ends thereof. At the upper and lower ends of these main walls, a pair of plates each having a cross-section shaped like a letter L are provided facing each other, and flat plates are provided at both ends of the middle column. The above object has been achieved by connecting the upper end and the lower end of the main wall by the central pillar by bolting the shaped plate and the flat plate of the central pillar.
1作用 」
このような構成の覆工用筒状壁体にあっては、複数の円
弧版状セグメントより構成される断面C字状主壁部およ
び断面逆C字状主壁部とその上端部および下端部を連結
する中柱とからなり、これら主壁部の上端部および下端
部にそれぞれ断面り字状の板を一対対向して設け、さら
に前記中柱の両端に平板を設けて、前記断面り字状の板
と中柱の平板とをボルト結合するので、分岐部セグメン
トを設ける必要がない。また中柱はその両端に設けられ
た平板を主壁部の上下端に一対対向して設けられた断面
り字状の板にボルト結合させることによって主壁部に組
み付けられるので、施工が容易で、その作業能率を向上
させることができ、施工コストの低減を図ることができ
る。1. In the lining tubular wall body having such a configuration, a main wall portion having a C-shaped cross section, a main wall portion having an inverted C-shaped cross section, and its upper end portion are composed of a plurality of arc plate-shaped segments. and a middle pillar connecting the lower ends of the main wall, a pair of plates each having a cross-section in the shape of a cross-section are provided facing each other at the upper and lower ends of these main walls, and a flat plate is provided at both ends of the middle pillar. Since the plate having an angular cross-section and the flat plate of the central column are connected by bolts, there is no need to provide a branch segment. In addition, the central pillar can be assembled to the main wall by bolting the flat plates provided at both ends to a pair of plates with an angular cross section provided oppositely at the upper and lower ends of the main wall, making construction easy. , the work efficiency can be improved and construction costs can be reduced.
「実施例」
以下、図面を参照して本発明の覆工用筒状壁体を詳しく
説明する。"Example" Hereinafter, the cylindrical wall body for lining of the present invention will be described in detail with reference to the drawings.
第1図ないし第3図は、本発明の覆工用筒状壁体の一例
を示すためのものであり、これらの図において第4図に
示したのと同じ構成要素には同一符号を付してその説明
を簡略化する。Figures 1 to 3 are for showing an example of a cylindrical wall for lining according to the present invention, and in these figures, the same components as shown in Figure 4 are given the same reference numerals. to simplify the explanation.
第1図は本発明の覆工用筒状壁体20の側面図である。FIG. 1 is a side view of a lining cylindrical wall body 20 of the present invention.
この覆工用筒状壁体20は円弧版状のセグメント11を
連結して断面C字状、断面逆C字状の主壁部12.12
を構築し、これら主壁部の上端部21および下端部22
の間に中柱14を建て込み、このようにして構築した眼
鏡枠状の壁体を掘削穴H,,H,の軸方向に順次連結し
てなるものである。This lining cylindrical wall body 20 has a main wall portion 12.12 having a C-shaped cross section and an inverted C-shaped cross section by connecting arc-shaped segments 11.
and the upper end 21 and lower end 22 of these main walls.
A middle pillar 14 is built in between, and the eyeglass frame-shaped walls constructed in this way are successively connected in the axial direction of the excavated holes H, , H,.
前記主壁部12,12は円弧版状のセグメント11.1
1・・・が掘削穴H1、H2の軸方向および周方向にボ
ルト結合されて形成されている。円弧版状のセグメント
11にはボルト・ナツトによる連結部としてボルト挿通
孔15aの形成された継手金具15.15・・・が埋設
されている。 第2図および第3図は主壁部12,12
の上端部21と下端部22およびそれらを連結する中柱
14を示す図であり、第2図は第1図の要部側面図、第
3図は同斜視図である。The main wall portions 12, 12 are arc-shaped segments 11.1.
1... are formed by being bolted together in the axial and circumferential directions of the excavated holes H1 and H2. Embedded in the arc-shaped segment 11 are joint fittings 15, 15, . Figures 2 and 3 show the main wall portions 12, 12.
FIG. 2 is a side view of the main part of FIG. 1, and FIG. 3 is a perspective view thereof.
第2図および第3図において主壁部12,12の上端部
21および下端部22は、それぞれセグメント11.1
1に溶接された断面り字状の板31.31を一対対向さ
せて、ワッシャー32.32を介して前記断面り字状の
板31.31に形成されたボルト挿通孔にボルト33を
挿通してナツト34によって接合されている。さらに、
H形鋼からなる中柱14の両端に溶接によって設けられ
た平板35と前記断面り字状の板31,31は、その各
々に形成されたボルト挿通孔にボルト33を挿通してナ
ツト34によってボルト結合されている。In FIGS. 2 and 3, the upper end 21 and lower end 22 of the main walls 12, 12 are connected to the segment 11.1, respectively.
A pair of plates 31.31 welded to the plate 31.31 with a square cross section are placed facing each other, and the bolt 33 is inserted through a washer 32.32 into a bolt insertion hole formed in the plate 31.31 with a square cross section. and are joined by a nut 34. moreover,
A flat plate 35 is welded to both ends of the center column 14 made of H-shaped steel, and the plates 31, 31 each having a cross section are inserted with a bolt 33 through a bolt insertion hole formed in each plate and then tightened with a nut 34. bolted together.
前記セグメント11、断面り字状の板31、平板35、
ポル訃33、ナツト34の各々の部材は鋼製のものが好
適である。The segment 11, the plate 31 having a cross-section shape, the flat plate 35,
It is preferable that each member of the bolt 33 and the nut 34 be made of steel.
さらに第3図においては中柱I4は一つだけ図示されて
いるが、同様にしてさらに複数の中柱を主壁部12の上
端部21と下端部22の間に設けることも可能である。Furthermore, although only one center pillar I4 is shown in FIG. 3, it is also possible to similarly provide a plurality of center pillars between the upper end 21 and the lower end 22 of the main wall portion 12.
「発明の効果」
以上説明したように、本発明の覆工用筒状壁体は、複数
の円弧版状セグメントより構成される断面C字状主壁部
および断面逆C字状主壁部とその上端部および下端部を
連結する中柱とからなり、これら主壁部の上端部および
下端部にそれぞれ断面り字状の板を一対対向して設け、
さらに前記中柱の両端に平板を設けて、前記断面り字状
の板と中柱の平板とをボルト結合するので、分岐部セグ
メントを設ける必要がない。また中柱はその両端に設け
られた平板を主壁部の上下端に一対対向して設けられた
断面り字状の板にボルト結合させることによって主壁部
に組み付けられるので、施工が容易で、その作業能率を
向上させることができ、コストの低減を図ることができ
る。"Effects of the Invention" As explained above, the cylindrical wall body for lining of the present invention has a main wall part having a C-shaped cross section and a main wall part having an inverted C-shaped cross section, each of which is composed of a plurality of arc plate-like segments. It consists of a central pillar that connects the upper and lower ends of the main wall, and a pair of opposing plates each having an L-shaped cross section are provided at the upper and lower ends of these main walls.
Furthermore, since flat plates are provided at both ends of the center column, and the plate having the L-shaped cross section and the flat plate of the center column are connected with bolts, there is no need to provide a branch segment. In addition, the central pillar can be assembled to the main wall by bolting the flat plates provided at both ends to a pair of plates with an angular cross section provided oppositely at the upper and lower ends of the main wall, making construction easy. , the work efficiency can be improved and costs can be reduced.
第1図は本発明の覆工用筒状壁体の側面図であり、第2
図は第1図の要部側面図、第3図は同斜視図であり、第
4図は従来の覆工用筒状壁体の側面図である。
11・・・セグメント、12・・・主壁、14・・・中
柱、20・・・覆工用筒状壁体、21・・・上端部、2
2・・・下端部、31・・・断面り字状の板、33・・
・ボルト、34・・・ナツト、35・・・平板、Hr
、 Ht・・・掘削穴。FIG. 1 is a side view of the cylindrical wall for lining of the present invention, and FIG.
The figure is a side view of the main part of FIG. 1, FIG. 3 is a perspective view of the same, and FIG. 4 is a side view of a conventional cylindrical wall for lining. DESCRIPTION OF SYMBOLS 11... Segment, 12... Main wall, 14... Middle column, 20... Cylindrical wall for lining, 21... Upper end part, 2
2...Lower end portion, 31...Cross-shaped plate, 33...
・Bolt, 34... Nut, 35... Flat plate, Hr
, Ht...Drilling hole.
Claims (1)
ごとく形成された掘削穴の覆工用筒状壁体であって、 この覆工用筒状壁体は複数の円弧版状セグメントより構
成される断面C字状主壁部および断面逆C字状主壁部と
その上端部および下端部を連結する中柱とからなり、 これら主壁部の上端部および下端部にはそれぞれ断面L
字状の板が一対対向して設けられ、さらに前記中柱の両
端には平板が設けられ、 前記断面L字状の板と中柱の平板とをボルト結合するこ
とにより、前記主壁の上端部および下端部が中柱によっ
て連結されていることを特徴とする掘削穴の覆工用筒状
壁体。[Claims] A cylindrical wall for lining an excavated hole formed in such a way that two excavated holes each having a circular cross section partially overlap each other, the cylindrical wall for lining a plurality of It consists of a main wall part with a C-shaped cross section and a main wall part with an inverted C-shaped cross section, which are composed of circular arc plate-like segments, and a central column connecting the upper and lower ends of the main wall part, and the upper and lower ends of these main walls. each has a cross section L
A pair of letter-shaped plates are provided facing each other, and flat plates are provided at both ends of the middle pillar, and the upper end of the main wall is connected by bolting the L-shaped plate in cross section and the flat plate of the middle pillar. A cylindrical wall body for lining an excavated hole, characterized in that the lower end portion and the lower end portion are connected by a central pillar.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1138326A JP2691156B2 (en) | 1989-05-31 | 1989-05-31 | Tubular wall for excavation hole lining |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1138326A JP2691156B2 (en) | 1989-05-31 | 1989-05-31 | Tubular wall for excavation hole lining |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH035598A true JPH035598A (en) | 1991-01-11 |
JP2691156B2 JP2691156B2 (en) | 1997-12-17 |
Family
ID=15219289
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1138326A Expired - Lifetime JP2691156B2 (en) | 1989-05-31 | 1989-05-31 | Tubular wall for excavation hole lining |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2691156B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR19990068658A (en) * | 1999-06-09 | 1999-09-06 | 채면석 | Propulsion device for a sheep |
-
1989
- 1989-05-31 JP JP1138326A patent/JP2691156B2/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR19990068658A (en) * | 1999-06-09 | 1999-09-06 | 채면석 | Propulsion device for a sheep |
Also Published As
Publication number | Publication date |
---|---|
JP2691156B2 (en) | 1997-12-17 |
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