JPS63236896A - Box-body joining method of sunk and buried tunnel - Google Patents
Box-body joining method of sunk and buried tunnelInfo
- Publication number
- JPS63236896A JPS63236896A JP62072130A JP7213087A JPS63236896A JP S63236896 A JPS63236896 A JP S63236896A JP 62072130 A JP62072130 A JP 62072130A JP 7213087 A JP7213087 A JP 7213087A JP S63236896 A JPS63236896 A JP S63236896A
- Authority
- JP
- Japan
- Prior art keywords
- box
- fitting
- tension
- tensioning
- sunk
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 description 19
- 239000010959 steel Substances 0.000 description 19
- 238000003780 insertion Methods 0.000 description 7
- 230000037431 insertion Effects 0.000 description 7
- 230000000694 effects Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000002788 crimping Methods 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 229920006231 aramid fiber Polymers 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000001577 neostriatum Anatomy 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、沈埋トンネルの施工に際してその函体同士
を接合する沈埋トンネルの函体接合方法に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method for joining boxes for an immersed tunnel, which joins the boxes to each other during construction of an immersed tunnel.
沈埋トンネルは、筒状に形成した鉄筋コンクリート製の
函体を水底に順次沈設し、その端部同士な液密状態に接
合して一連のトンネルに構成するもので、函体の端部同
士を接合する代表的な方法としてＰＣ鋼より線を用いる
例が知られている。An immersed tunnel consists of a series of cylindrical reinforced concrete boxes that are sequentially sunk to the bottom of the water and their ends are joined in a liquid-tight manner to form a series of tunnels. A typical example of this method is to use stranded PC steel wires.
この接合方法について述べると、第５図に示すように、
水底に沈設した一方の函体１ａの端部に他方の函体１ｂ
の端部を止水用のガスケット２を挟んで突き合せ、函体
１ａ、Ｉｂ内の排水を行なう。Describing this joining method, as shown in Figure 5,
The other box 1b is attached to the end of one box 1a sunk to the bottom of the water.
The ends of the boxes 1a and 1b are butted together with a water stop gasket 2 in between to drain the inside of the boxes 1a and Ib.
函体１ａ、ｌｂにはその端部側にその長手方向に沿って
挿通孔３ａ、３ｂが形成されているから、一方の挿通孔
３ａから他方の挿通孔３ｂに亙ってＰＣ鋼より線４を挿
通する。そしてこのＰＣ鋼より１４の一方の端末をボッ
クス５ａのＭ１面に定着くさび６ａを介して定着させ、
この状態でＰＣＩより１４の他方の端末をジヤツキ（図
示せず）を用いて引張り、ＰＣ鋼より線４に一定の緊張
力を与え、この状態でｐｃａより纏４の他方の端末をボ
ックス５ｂの壁面に定着くさび６ｂを介して定着させる
。このような措置を函体１ａ、１ｂの端部の開口周縁に
沿って多数均等的に施して函体１ａ、１ｂを接合する。Since the boxes 1a and lb have insertion holes 3a and 3b formed along the longitudinal direction on their end sides, the PC steel strands 4 extend from one insertion hole 3a to the other insertion hole 3b. Insert. Then, from this PC steel, one end of 14 is fixed to the M1 surface of the box 5a via the fixing wedge 6a,
In this state, pull the other end of the wire 14 from the PCI using a jack (not shown) to apply a certain tension to the PC steel wire 4, and in this state, pull the other end of the wire 4 from the pca to the box 5b. It is fixed to the wall surface via the fixing wedge 6b. A large number of such measures are uniformly applied along the edges of the openings at the ends of the boxes 1a and 1b to join the boxes 1a and 1b.
このように可撓性のＰＣ鋼よりｆａ４を継手とする接合
方法によると、接合部に曲げモーメトや剪断力などの局
部的な力が作用してもそれに充分に耐え、接合部の破壊
が防止され、また函体１ａ。According to the joining method using FA4 as a joint rather than flexible PC steel, even if local forces such as bending moment and shear force are applied to the joint, it can sufficiently withstand it and prevent the joint from breaking. Also, box 1a.
１ｂの不等沈下などによる変位も吸収することができる
利点がある。It has the advantage of being able to absorb displacement due to uneven settlement of 1b.
ところが上述のような従来の接合方法においては、ＰＣ
鋼より線に緊張力を与えるために狭い空間内でジヤツキ
を取扱わなければならず、このため作業が面倒で施工能
率が低下する難点があった。However, in the conventional bonding method as described above, the PC
In order to apply tension to the steel strands, the jacks had to be handled in a narrow space, making the work cumbersome and reducing construction efficiency.
この発明はこのような問題点の解決を目的としたもので
ある。This invention aims to solve these problems.
この考案はこのような問題点を解決するために、水底に
順次沈設した函体の端部同士を止水用のガスケ゛ットを
挟んで接合する当り、筒状の連結金具の内周に緊張金具
を螺合し、前記連結金具および緊張金具にそれぞれ緊張
用の線条体を連結し、その一方の線状体の端末を前記一
方の函体に、同じく他方の線状体の端末を他方の函体に
それぞれ定着させ、この状態で前記緊張金具を連結金具
に対して螺進させて前記線条体を緊張させ、この緊張り
で函体の端部同士を接合するようにしたものである。In order to solve these problems, this idea was developed by adding tension fittings to the inner periphery of the cylindrical connecting fittings when joining the ends of the boxes that were successively sunk to the bottom of the water with a water-stopping gasket in between. are screwed together, and a tensioning filament is connected to the connecting fitting and the tensioning fitting, respectively, and the terminal of one of the linear bodies is connected to the one box, and the terminal of the other linear body is connected to the other. Each is fixed to the box, and in this state, the tension fitting is screwed onto the connecting fitting to tension the filament, and this tension joins the ends of the box. .
緊張金具を連結金具に対して螺進させるだけで緊張用の
線条体に所定の緊張力を与えることができ、したがって
容易に能率よく函体の端部同士を所定の状態に接合させ
ることができる。A predetermined tension force can be applied to the tensioning filament simply by threading the tensioning fitting onto the connecting fitting, and therefore the ends of the box can be easily and efficiently joined to each other in a predetermined state. can.
以下、この発明の一実施例について第１図ないし第３図
を参照して説明する。An embodiment of the present invention will be described below with reference to FIGS. 1 to 3.
函体１ａ、１ｂの端部同士が止水用のガスケット２を挟
んで突き合わされている。そして各函体Ｉａ、Ｉｂの端
部の開口内周縁にそれぞれ切欠部１０ａ、１０ｂが、ま
た端部の奥方側の内周面にボックス５ａ、５ｂがそれぞ
れ形成され、さらにこれら切欠部１０ａ、１０ｂからボ
ックス５ａ。The ends of the boxes 1a and 1b are butted against each other with a water-stop gasket 2 in between. Notches 10a and 10b are formed on the inner periphery of the opening at the end of each box Ia and Ib, and boxes 5a and 5b are formed on the inner periphery of the end, respectively, and these notches 10a and 10b From box 5a.
５ｂに１って挿通孔３ａ 、３ｂが形成されている。Insertion holes 3a and 3b are formed in 5b.
１２は筒状に形成された連結金具で、この連結金具１２
の一端側の内周にねじ１３が刻設され、またこの連結金
具１２の他端部にテーバ状の連結孔１４が形成されてい
る。１５は筒状の緊張金具で、この緊張金具１５の外周
にねじ１６が刻設され、またこの緊張金具１５の内周が
連結孔１７としてテーバ状に形成されている。さらにこ
の緊張金具１５の一端側の局面に、その周方向に沿って
複数の操作孔１５ａ・・・が形成されている。４ａ。Reference numeral 12 denotes a connecting fitting formed in a cylindrical shape, and this connecting fitting 12
A screw 13 is formed on the inner periphery of one end of the connecting fitting 12, and a tapered connecting hole 14 is formed at the other end of the connecting fitting 12. Reference numeral 15 denotes a cylindrical tensioning fitting. A screw 16 is carved on the outer periphery of this tensioning fitting 15, and the inner periphery of this tensioning fitting 15 is formed in a tapered shape as a connecting hole 17. Furthermore, a plurality of operating holes 15a are formed along the circumferential direction on the surface of one end of the tension fitting 15. 4a.
４ａは緊張用の線条体としてのＰＣ鋼より線で、これら
ＰＣｍより線４ａ、４ｂの両端末にはそれぞれ圧着スリ
ーブ１８．１８が取付けられ、これら圧着スリーブ１８
．１８の外周にそれぞれねじ１９．１９が刻設されてい
る。4a is a PC steel stranded wire as a tensioning filament, and crimping sleeves 18 and 18 are attached to both ends of these PCm stranded wires 4a and 4b, respectively, and these crimping sleeves 18
．． A screw 19, 19 is cut on the outer periphery of each of the screws 18, respectively.
しかして、連結金具１２の連結孔１４に一方のＰＣ鋼よ
り線４ａの端末を挿入し、この端末の圧着スリーブ１８
の外周に座金２０を装着し、かつナツト２１を螺合して
この端末を連結金Ｒ１２に連結する。また、他方のＰＣ
鋼より線４ｂの端末を緊張金具１５の連結孔１７に挿入
し、この端末の圧着スリーブ１日の外周に球面座金２２
を装着し、かつナツト２３を螺合してこの端末を緊張金
具１５に連結する。そしてこの緊張金具１５の外周のね
じ１６を前記連結金具１２の内周のねじ１３に螺合して
緊張金具１５を連結金具１２に取付ける。Then, the end of one of the PC steel stranded wires 4a is inserted into the connection hole 14 of the connection fitting 12, and the crimp sleeve 18 of this end is inserted.
A washer 20 is attached to the outer periphery of the terminal, and a nut 21 is screwed to connect this terminal to the connecting metal R12. Also, the other PC
Insert the end of the steel stranded wire 4b into the connecting hole 17 of the tension fitting 15, and attach the spherical washer 22 to the outer periphery of the crimp sleeve at this end.
is attached, and the nut 23 is screwed to connect this terminal to the tension fitting 15. Then, the tension fitting 15 is attached to the connection fitting 12 by screwing the screw 16 on the outer circumference of the tension fitting 15 to the screw 13 on the inner circumference of the connection fitting 12.
こののち、前記一方のｐｃｍより１１４ａの自由端側の
端末を前記一方の函体１ａの切欠部１０ａから挿通孔３
ａに挿通してボックス５ａ内に突出させ、その突出させ
た端末の圧着スリーブ１８の外周に座金２６を装着し、
かつナツト２７を螺合してこの端末をボックス５ａの壁
面に定着させる。After that, the terminal on the free end side of the one pcm 114a is inserted into the insertion hole 3 through the notch 10a of the one box 1a.
a and protrude into the box 5a, and a washer 26 is attached to the outer periphery of the crimp sleeve 18 at the protruding end.
The terminal is then fixed to the wall of the box 5a by screwing together the nut 27.
また、同様に前記他方のＰＣ鋼より線４ｂの自由端側の
端末を他方の函体１ｂの挿通孔３ｂに挿通して座金２８
およびナツト２９を介してボックス５ｂの壁面に定着さ
せる。Similarly, the free end of the other PC steel wire 4b is inserted into the insertion hole 3b of the other box 1b, and the washer 28 is inserted.
And it is fixed to the wall surface of the box 5b via a nut 29.
そしてこのような状態のもとで、緊張金具１５の操作孔
１５ａにバール３０などを挿入して緊張金具１５を連結
金具１２に対して回転し、緊張金具１５を矢印方向に螺
進させる。これによりＰＣ鋼より線４ａ、４ｂに緊張力
が加わり、この緊張力で函体１ａ、１ｂの端部同士が所
定の状態に接合される。この際、ＰＣ鋼より線４ｂの端
末を球面座金２２を介して緊ず金具１５に連結しである
から、ＰＣ鋼より線４ａ、４ｂの軸心に位置ずれが生じ
ているような場合であっても、これらＰＣ鋼より線４ａ
、４ｂに適正に緊張力を加えることが可能である。Under such a state, the crowbar 30 or the like is inserted into the operation hole 15a of the tensioning fitting 15, and the tensioning fitting 15 is rotated relative to the connecting fitting 12, so that the tensioning fitting 15 is screwed in the direction of the arrow. This applies tension to the wires 4a, 4b from the PC steel, and this tension joins the ends of the boxes 1a, 1b in a predetermined state. At this time, since the end of the PC steel stranded wire 4b is connected to the fastener fitting 15 via the spherical washer 22, there is no possibility that the axes of the PC steel stranded wires 4a and 4b may be misaligned. However, these PC steel stranded wires 4a
, 4b can be appropriately applied with tension.
なお、連結金具１２に対するＰＣ鋼より線４ａの連結構
造としては、第４図（ａ）に示すように、ＰＣ鋼より線
４ａの端末の圧着スリーブ１８を連結金具１２の端面に
螺合したり、或いは同図（ｂ）に示すように、連結金具
１２の端面にスリーブ１２ａを一体に形成し、このスリ
ーブ１２ａにＰＣ！ｌより纏４ａの端末を挿入圧着して
連結するようにしてもよい。また；緊張用の線条体とし
ては、ＰＣ鋼より線に限らず、沈埋トンネルの規模など
に応じてＰＣ単線、或いは炭素繊維、アラミド繊維など
の高強度低伸度繊維を組合わせてなる複合線条体などを
使用することも可能である。The connection structure of the PC steel stranded wire 4a to the connecting fitting 12 is as shown in FIG. Alternatively, as shown in FIG. 2(b), a sleeve 12a is integrally formed on the end surface of the connecting fitting 12, and a PC! is attached to this sleeve 12a. Alternatively, the ends of the threads 4a may be inserted and crimped to connect. In addition, the tensioning filament is not limited to PC steel stranded wire, but depending on the scale of the immersed tunnel, it can also be a single PC wire, or a composite made of a combination of high-strength, low-elongation fibers such as carbon fiber or aramid fiber. It is also possible to use the striatum and the like.
（発明の効果）
以上説明したようにこの発明によれば、連結金具に対し
て緊張金具を螺進させるだけでＰＣ線条に所定の緊張力
を与えることができ、函体の端部同士の接合を容易に能
率よく行なうことができるという効果を奏する。(Effects of the Invention) As explained above, according to the present invention, a predetermined tension force can be applied to the PC wire simply by screwing the tensioning metal fitting into the connecting metal fitting, and the end portions of the box can be connected to each other. This has the effect that joining can be performed easily and efficiently.
第１図はこの発明の一実施例を示す断面図、第２図は同
実施例における連結金具および緊張金具の断面図、第３
図はＰＣ鋼より線の側面図、第４図は連結金具に対する
ＰＣ鋼より纏の連結構造の変形例を示す断面図、第５図
は従来の技術を示す、断面図である。
１ａ、１ｂ・・・函体、２・・・ガスケット、３ａ。
３ｂ・・・挿通孔、４ａ、４ｂ・・・ＰＣ鋼より纏（線
条体）、１２・・・連結金具、１５・・・緊張金具。FIG. 1 is a cross-sectional view showing one embodiment of the present invention, FIG. 2 is a cross-sectional view of a connecting fitting and tension fitting in the same embodiment, and FIG.
The figure is a side view of a PC steel strand, FIG. 4 is a sectional view showing a modification of the connection structure of the PC steel strand to the connecting fitting, and FIG. 5 is a sectional view showing a conventional technique. 1a, 1b...Box, 2...Gasket, 3a. 3b...Insertion hole, 4a, 4b...PC steel wire (striated body), 12...Connection fitting, 15...Tension fitting.
Claims (1)
トを挟んで接合する当り、筒状の連結金具の内周に緊張
金具を螺合し、前記連結金具および緊張金具にそれぞれ
緊張用の線条体を連結し、その一方の線状体の端末を前
記一方の函体に、同じく他方の線状体の端末を他方の函
体にそれぞれ定着させ、この状態で前記緊張金具を連結
金具に対して螺進させて前記線条体を緊張させ、この緊
張力で函体の端部同士を接合することを特徴とした沈埋
トンネルの函体接合方法。When joining the ends of the boxes, which are sequentially sunk to the bottom of the water, with a water-stop gasket in between, tension fittings are screwed onto the inner periphery of the cylindrical connecting fittings, and each of the connecting fittings and the tensioning fittings is used for tensioning. Connecting the linear bodies, fixing the terminal of one of the linear bodies to the one box, and fixing the terminal of the other linear body to the other box, and in this state, connect the tension fittings. A method for joining a box for an immersed tunnel, characterized in that the filament is tensioned by threading it against a metal fitting, and the ends of the box are joined by this tension.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62072130A JPS63236896A (en) | 1987-03-26 | 1987-03-26 | Box-body joining method of sunk and buried tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62072130A JPS63236896A (en) | 1987-03-26 | 1987-03-26 | Box-body joining method of sunk and buried tunnel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63236896A true JPS63236896A (en) | 1988-10-03 |
Family
ID=13480411
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62072130A Pending JPS63236896A (en) | 1987-03-26 | 1987-03-26 | Box-body joining method of sunk and buried tunnel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63236896A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100718448B1 (en) * | 1999-12-14 | 2007-05-14 | 다이킨 고교 가부시키가이샤 | Temperature control device of liquid cooling device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55554A (en) * | 1979-02-26 | 1980-01-05 | Ricoh Co Ltd | Cleaning device in copying machine and others |
-
1987
- 1987-03-26 JP JP62072130A patent/JPS63236896A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55554A (en) * | 1979-02-26 | 1980-01-05 | Ricoh Co Ltd | Cleaning device in copying machine and others |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100718448B1 (en) * | 1999-12-14 | 2007-05-14 | 다이킨 고교 가부시키가이샤 | Temperature control device of liquid cooling device |
| KR100718447B1 (en) * | 1999-12-14 | 2007-05-14 | 다이킨 고교 가부시키가이샤 | Temperature control device of liquid cooling device |
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