JPH01256698A - Iron-made segment - Google Patents
Iron-made segmentInfo
- Publication number
- JPH01256698A JPH01256698A JP63084085A JP8408588A JPH01256698A JP H01256698 A JPH01256698 A JP H01256698A JP 63084085 A JP63084085 A JP 63084085A JP 8408588 A JP8408588 A JP 8408588A JP H01256698 A JPH01256698 A JP H01256698A
- Authority
- JP
- Japan
- Prior art keywords
- joint
- segment
- fitting
- shear fitting
- shearing
- 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
- 238000010008 shearing Methods 0.000 claims description 20
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 4
- 229910052742 iron Inorganic materials 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims 1
- 229910052751 metal Inorganic materials 0.000 claims 1
- 229910001141 Ductile iron Inorganic materials 0.000 description 2
- 235000012489 doughnuts Nutrition 0.000 description 2
- 229910001208 Crucible steel Inorganic materials 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/14—Lining predominantly with metal
- E21D11/15—Plate linings; Laggings, i.e. linings designed for holding back formation material or for transmitting the load to main supporting members
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明はシールド工法においてトンネルライニングの組
立に用いられるダクタイル鋳鉄、鉄鋼層等の鉄製セグメ
ント（以下、これを略してセグメントと称する。）に関
する。DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to iron segments (hereinafter simply referred to as segments) such as ductile cast iron and steel layers used for assembling tunnel linings in shield construction methods.
（従来の技術）
従来、セグメントを環状に組立ててなるセグメントリン
グ同志を締結してトンネルライニングを構成するのに、
２０〜４０ｍｍ外径の高張力ボルトを用いている。(Prior Art) Conventionally, when constructing a tunnel lining by connecting segment rings formed by assembling segments into an annular shape,
High-tensile bolts with an outer diameter of 20 to 40 mm are used.
締結ボルトの太さは継手の強度、剛性及び組立時の作業
性を考慮して決定されるが、特にリング間ボルトの太さ
は剪断力の大きさにより決定される。The thickness of the fastening bolt is determined by considering the strength and rigidity of the joint and the workability during assembly, and in particular the thickness of the inter-ring bolt is determined by the magnitude of shearing force.
（発明が解決しようとする課題）
上述した従来のリング継手のボルト締結構造においては
、地盤沈下や地震等によりリング間に強大な剪断力が働
けば、リング間ボルトの太さを大きくしたり、本数を増
やしたりする必要があるが、それらは組立作業に支障を
きたすことから自ずから限度があってボルトだけでは対
応できない場合がある。(Problems to be Solved by the Invention) In the conventional bolt fastening structure of the ring joint described above, if a strong shearing force acts between the rings due to ground subsidence or an earthquake, it is necessary to increase the thickness of the bolt between the rings, Although it is necessary to increase the number of bolts, there is a limit to how many bolts can be used because they interfere with assembly work, and there are cases where bolts alone cannot be used.
したがって、本発明の目的とするところは、セグメント
リングの組立作業を損なわず、しかも強大な剪断力に耐
えうるセグメントを提供するにある。SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a segment that does not impair the assembly operation of the segment ring and can withstand strong shearing forces.
（課題を解決するための手段）
本発明に係るセグメントの特徴は円周方向継手の両側継
手面に凹部を設け、その片側凹部に剪断金具を固定して
継手面にホゾを形成したところにある。(Means for Solving the Problems) The feature of the segment according to the present invention is that a recess is provided on both side joint surfaces of a circumferential joint, and a shearing fitting is fixed in the recess on one side to form a tenon on the joint surface. .
（作 用）
本発明によれば、地盤沈下や地震等によりリング間に強
大な剪断力が働いた場合、ボルトに比べ剪断力に対し蟲
かに強い円弧状剪断金具又は輪環状剪断金具からなるホ
ゾが剪断部材として働き、ボルト及びセグメントリング
の継手板に過大な応力が生じないようにする。(Function) According to the present invention, when a strong shearing force acts between the rings due to ground subsidence or an earthquake, the ring-shaped shearing fitting is made of an arcuate shearing fitting or an annular shearing fitting that is extremely strong against shearing force compared to a bolt. The tenon acts as a shearing member and prevents excessive stress from occurring on the bolt and segment ring joint plates.
（実施例）
本発明の実施例につき、以下、図面を参照して説明する
。(Example) Examples of the present invention will be described below with reference to the drawings.
先づ、第１実施例につき第１図乃至第３図を参照して説
明すると、上はトンネルライニングを構成するセグメン
トで、ダクタイル鋳鉄でつくられている。２，２は円周
方向継手の継手板で、その両袖手板の表面にはボルトピ
ッチサークルＰ上に溝加工を施して円弧状の角形溝３．
３を形成する。First, the first embodiment will be described with reference to FIGS. 1 to 3. The upper segment is a segment constituting the tunnel lining, and is made of ductile cast iron. 2, 2 is a joint plate of a circumferential joint, and the surfaces of both arm plates are grooved on the bolt pitch circle P to form an arcuate rectangular groove 3.
form 3.
そして該溝３の一方には、溝幅とほぼ等しい円弧状剪断
金具４が嵌め込まれ、ビス５により取りつけられている
。なお、前記剪断金具４の継手板２への取付けは接着等
の適当な固着手段によっても、また両者の併用によって
も行うことができる。An arc-shaped shearing fitting 4 having a width substantially equal to the width of the groove is fitted into one of the grooves 3, and is attached with screws 5. Incidentally, the shearing fitting 4 can be attached to the joint plate 2 by an appropriate fixing means such as adhesive, or by a combination of both.
そして前記剪断金具４にはセグメント継手板２に明けら
れたリング締結用ボルト孔６と一致するボルト孔６”が
明けられている。The shearing fitting 4 is provided with a bolt hole 6'' that coincides with the ring fastening bolt hole 6 formed in the segment joint plate 2.
したがって、トンネルライニングを構成するには、第７
図に示すリングを形成している左方のセグメント上の継
手板２に設けた円弧状剪断金具４を右方のセグメント上
の継手板２の角形ｔｉ３に順次嵌合させ、第８図及び第
９図に示すようにボルドーナツトＬにより締結していけ
ばよい。Therefore, to configure the tunnel lining, the seventh
The arc-shaped shearing fittings 4 provided on the joint plate 2 on the left segment forming the ring shown in the figure are successively fitted into the rectangular shape ti3 of the joint plate 2 on the right segment. As shown in FIG. 9, it may be fastened using a bolt donut L.
次に、第４図乃至第６図を参照して本発明の第２実施例
につき説明すると、両袖手板２，２の表面には、ボルト
ピッチサークルＰ上のポルト孔６周囲に座ぐり加工によ
り丸孔８．８を形成し、−方の継手板２の丸孔８に輪環
状剪断金具９を嵌合接着してホゾを形成している。そし
て輪環状剪断金具９の中央にはボルト孔６゛が開口して
いる。Next, a second embodiment of the present invention will be described with reference to FIGS. 4 to 6. The surfaces of both sleeve hand plates 2, 2 are counterbored around the port hole 6 on the bolt pitch circle P. A round hole 8.8 is formed, and an annular shearing fitting 9 is fitted and bonded into the round hole 8 of the - side joint plate 2 to form a tenon. A bolt hole 6' is opened in the center of the annular shearing fitting 9.
したがって、トンネルライニングを構成するには、第１
実施例と共通する第７図乃至第９図に示すように１．左
方のセグメント上の継手板２に設けた輪環状剪断金具８
を右方のセグメント上の継手板２の円孔９に順次嵌合さ
せ第８図及び第９図に示すようにボルドーナツト工によ
り締結していけばよい。Therefore, to configure the tunnel lining, the first
As shown in FIGS. 7 to 9, which are common to the embodiments, 1. Annular shear fitting 8 provided on the joint plate 2 on the left segment
are sequentially fitted into the circular holes 9 of the joint plate 2 on the right segment and fastened using bolt donuts as shown in FIGS. 8 and 9.
（発明の効果）
以上の説明から理解されるように、本発明によれば、円
弧状剪断金具または輪環状剪断金具により強剪断継手が
形成され、その形状の大きさを変化させることにより地
盤沈下や地震等で生起される各種の剪断に対処可能であ
る。さらに、組立時の作業性が良好のためボルトは適切
な太さのものが選定でき、組立は従来のセグメントに劣
らず、容易にできる利点を有する。(Effects of the Invention) As understood from the above description, according to the present invention, a strong shear joint is formed by an arc-shaped shear fitting or an annular shear fitting, and by changing the size of the shape, ground subsidence can be prevented. It is possible to cope with various types of shearing caused by earthquakes, earthquakes, etc. Furthermore, since workability during assembly is good, bolts of appropriate thickness can be selected, and assembly is as easy as conventional segments.
第１図乃至第３図は本発明の第１実施例を示すもので、
第１図はダクタイルセグメントの斜視図、第２図は第１
図のＡ−Ａ断面図、第３図は第２図におけるＢ部分の拡
大図である。また第４図乃至第６図は本発明の第２実施
例を示すもので、第４図はダクタイルセグメントの斜視
図、第５図は第４図のＣ−Ｃ断面図、第６図は第５図に
おけるＤ部分の拡大図である。そして第７図乃至第９図
は第１実施例及び第２実施例に共通する断面図であって
、第７図は隣接して接合される両リングの半径方向断面
図、第８図は締結された両リングの半径方向断面図、第
９図は第８図におけるＥ部分の拡大図である。
１−−−−−−−−−−ダクタイルセグメント、２−・
・−・・・・−円周方向継手、３−−−−−・−−一−
−凹部、４・−・−・・−−一−−剪断金具。1 to 3 show a first embodiment of the present invention,
Figure 1 is a perspective view of the ductile segment, Figure 2 is a perspective view of the ductile segment.
FIG. 3 is an enlarged view of portion B in FIG. 2. 4 to 6 show a second embodiment of the present invention, in which FIG. 4 is a perspective view of a ductile segment, FIG. 5 is a sectional view taken along line C-C in FIG. 4, and FIG. 5 is an enlarged view of portion D in FIG. 5. FIG. FIGS. 7 to 9 are cross-sectional views common to the first and second embodiments, in which FIG. 7 is a radial cross-sectional view of both rings joined adjacently, and FIG. 8 is a sectional view of the two rings joined together. FIG. 9 is an enlarged view of portion E in FIG. 8. 1---------Ductile segment, 2--
・−・・−Circumferential joint, 3−−−−−・−1−
- Recessed portion, 4.---.--1-- Shearing fitting.
Claims (3)
側凹部に剪断金具を固定して継手面にホゾを形成したこ
とを特徴とする鉄製セグメント(1) An iron segment characterized in that a recess is provided on both side joint surfaces of a circumferential joint, a shearing fitting is fixed in the recess on one side, and a tenon is formed on the joint surface.
とした第１項記載のセグメント(2) The segment according to item 1, wherein the recess is an arcuate square groove and the tenon is an arcuate shearing fitting.
丸孔とし、ホゾをその中心にボルト孔を有する輪環状金
具とした第１項記載のセグメント。(3) The segment according to item 1, wherein the recess is a round hole formed around the bolt hole by counterboring, and the tenon is an annular metal fitting having a bolt hole at its center.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63084085A JP2660845B2 (en) | 1988-04-07 | 1988-04-07 | Iron segment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63084085A JP2660845B2 (en) | 1988-04-07 | 1988-04-07 | Iron segment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01256698A true JPH01256698A (en) | 1989-10-13 |
| JP2660845B2 JP2660845B2 (en) | 1997-10-08 |
Family
ID=13820659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63084085A Expired - Lifetime JP2660845B2 (en) | 1988-04-07 | 1988-04-07 | Iron segment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2660845B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014227756A (en) * | 2013-05-24 | 2014-12-08 | 株式会社フジタ | Connection structure of segment |
| JP2019143461A (en) * | 2018-02-23 | 2019-08-29 | Ｎｅｘｔ Ｉｎｎｏｖａｔｉｏｎ合同会社 | Joint member |
-
1988
- 1988-04-07 JP JP63084085A patent/JP2660845B2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014227756A (en) * | 2013-05-24 | 2014-12-08 | 株式会社フジタ | Connection structure of segment |
| JP2019143461A (en) * | 2018-02-23 | 2019-08-29 | Ｎｅｘｔ Ｉｎｎｏｖａｔｉｏｎ合同会社 | Joint member |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2660845B2 (en) | 1997-10-08 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |