JPH0235196A - Concrete segment - Google Patents
Concrete segmentInfo
- Publication number
- JPH0235196A JPH0235196A JP63184835A JP18483588A JPH0235196A JP H0235196 A JPH0235196 A JP H0235196A JP 63184835 A JP63184835 A JP 63184835A JP 18483588 A JP18483588 A JP 18483588A JP H0235196 A JPH0235196 A JP H0235196A
- Authority
- JP
- Japan
- Prior art keywords
- concrete
- end plate
- joint
- body part
- segment
- 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
- 239000004567 concrete Substances 0.000 title claims abstract description 36
- 238000005192 partition Methods 0.000 claims abstract description 14
- 238000003780 insertion Methods 0.000 claims description 12
- 230000037431 insertion Effects 0.000 claims description 12
- 230000002093 peripheral effect Effects 0.000 abstract description 7
- 239000002184 metal Substances 0.000 abstract description 3
- 229910052751 metal Inorganic materials 0.000 abstract description 3
- 230000006835 compression Effects 0.000 abstract 1
- 238000007906 compression Methods 0.000 abstract 1
- 238000010276 construction Methods 0.000 description 6
- 239000007769 metal material Substances 0.000 description 4
- 238000005452 bending Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011440 grout Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- E21D11/04—Lining with building materials
- E21D11/08—Lining with building materials with preformed concrete slabs
- E21D11/083—Methods or devices for joining adjacent concrete segments
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Civil 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、コンクリート製セグメントに係り、トンネル
等のシールド工法に利用される。DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a concrete segment and is used in shield construction methods for tunnels and the like.
（従来の技術）
トンネル用のセグメントにおいては、各セグメントはト
ンネル周方向及び軸方向に隣り合うセグメントを互いに
接合されて、トンネルをシールドする。(Prior Art) In a segment for a tunnel, adjacent segments in the tunnel circumferential direction and axial direction are joined to each other to shield the tunnel.
このセグメントにおいて、躯体部をコンクリート製とし
た場合、コンクリートは引張強度に弱いため、躯体部の
接合端側に、ボルト挿通孔を有す継手金物が埋設されて
いる。In this segment, when the body part is made of concrete, since concrete has low tensile strength, joint hardware having bolt insertion holes is buried at the joint end side of the body part.
このようなコンクリート製セグメントとして、実公昭６
０−１６７１９号公報の技術がある。As a concrete segment like this,
There is a technique disclosed in Japanese Patent No. 0-16719.
（発明が解決しようとする課題）
ところで、叙述の公報記載の技術はそれなりに有用性は
あるものの、継手金物の外周面側（トンネル内周面側）
に、コンクリート被覆層を有することから、この被覆層
の角部が、運搬・組み立て時等において欠けるという問
題が残存していた。(Problem to be solved by the invention) By the way, although the technique described in the above-mentioned publication is useful to some extent,
Moreover, since it has a concrete covering layer, there remains the problem that the corners of this covering layer are chipped during transportation, assembly, etc.
また、躯体部の接合端側は継手金物にて構成されている
故に、引張強度の面では有利であるものの、継手金物だ
けであることから、圧縮強度の面でやや問題があった。Further, since the joint end side of the body part is made of joint hardware, it is advantageous in terms of tensile strength, but since it is only joint hardware, there is a slight problem in terms of compressive strength.
すなわち、躯体部の接合端側において、引張及び圧縮の
両者の強度を満足することが困難であった。That is, it has been difficult to satisfy both tensile and compressive strengths on the joint end side of the frame.
本発明は、接合端側の外縁欠けを完べきになくし、しか
も、接合端側の引張、圧縮双方の強度を保証したコンク
リート製セグメントを提供することが目的である。The object of the present invention is to provide a concrete segment that completely eliminates outer edge chipping on the joint end side and guarantees both tensile and compressive strength on the joint end side.
（課題を達成するための手段）
本発明は、躯体部２がコンクリートよりなり、該躯体部
２の接合端側に、ボルト挿通孔１４を有する継手金物３
が埋設されているコンクリート製セグメント１において
、叙述の目的を達成するために次の技術的手段を講じて
いる。(Means for Achieving the Object) The present invention provides a joint metal fitting 3 in which a body part 2 is made of concrete and has a bolt insertion hole 14 on the joint end side of the body part 2.
The following technical measures have been taken to achieve the stated purpose in the concrete segment 1 in which the concrete is buried.
すなわち、本発明は、継手金物３は、躯体部２の接合端
の全面を被覆する端板４を備え、該端板４に左右側板５
を連設して躯体部２の側壁を被覆しており、端板４の背
後に、所定の間隔を有し、左右側板５に連結し、かつ、
締結用開口部１２を形成するための区画壁７を有してお
り、該区画壁７と端板４間に、コンクリート層１３を有
して接合端側がサンドイッチ構造とされ、端板４および
コンクリート層１３を貫通して締結用開口部１２に到る
ボルト挿通孔１４を有することを特徴とするものである
。That is, in the present invention, the joint hardware 3 includes an end plate 4 that covers the entire surface of the joint end of the body part 2, and the left and right side plates 5 are attached to the end plate 4.
are connected to the left and right side plates 5 at a predetermined interval behind the end plate 4, and are connected to the left and right side plates 5, and
It has a partition wall 7 for forming a fastening opening 12, and a concrete layer 13 is provided between the partition wall 7 and the end plate 4 so that the joint end side has a sandwich structure, and the end plate 4 and the concrete It is characterized by having a bolt insertion hole 14 that penetrates the layer 13 and reaches the fastening opening 12.
（作 用）
継手金物３はその端板４が躯体部２の接合端の全体（全
面）を被覆し、側板５が躯体部２の側壁を被覆している
ことから、接合端例の外周縁が金属材料で被覆されてエ
ツジ欠けは完べきに防止される。(Function) Since the end plate 4 of the joint hardware 3 covers the entire (entire surface) of the joint end of the body part 2, and the side plate 5 covers the side wall of the body part 2, the outer peripheral edge of the joint end example is coated with a metal material to completely prevent edge chipping.
更に、端板４の背後に、ボルト挿通孔１４を有する金属
材料とコンクリート層１３よりなるサンドイッチ構造部
を有することから、引張、圧縮の双方の剛性（強度）が
増大する。Further, since a sandwich structure made of a metal material having bolt insertion holes 14 and a concrete layer 13 is provided behind the end plate 4, both tensile and compressive rigidity (strength) is increased.
（実施例） 以下、図面を参照して本発明の実施例を詳述する。(Example) Embodiments of the present invention will be described in detail below with reference to the drawings.
図において、１はコンクリート製セグメントであり、躯
体部２とこの躯体部２の接合端側に埋設された鋳鉄その
他の金属材料よりなる継手金物３よりなる。In the figure, reference numeral 1 denotes a concrete segment, which consists of a body part 2 and a joint hardware 3 made of cast iron or other metal material buried at the joint end of the body part 2.
躯体部２は鉄筋コンクリートからなり、その長手方向（
トンネル周方向）には内外周面が弯曲され、幅方向（ト
ンネル軸方向）は非弯曲とされている。The body part 2 is made of reinforced concrete, and its longitudinal direction (
The inner and outer peripheral surfaces are curved in the tunnel circumferential direction), and are not curved in the width direction (tunnel axial direction).
継手金物３は、躯体部２の接合端の全面（全体）を被覆
する端板４を備え、該端板４には左右一対の側板５が連
設されて、躯体部２の左右側壁、すなわち、トンネル軸
方向の接合端面６の接合端側を被覆している。The joint hardware 3 includes an end plate 4 that covers the entire surface (whole) of the joint end of the body part 2, and a pair of left and right side plates 5 are connected to the end plate 4 to cover the left and right side walls of the body part 2, i.e. , covering the joint end side of the joint end surface 6 in the tunnel axis direction.
更に、端板４の背後に、区画壁７が一体に連設されてお
り、該区画壁７は背壁８と中間壁９とをリブ壁１０で仕
切って、躯体部２の内周面側が開口された有底の締結用
開口部１２が形成されており、該開口部１２は躯体部２
の厚さ方向に開口高さが向いており、第４図および第５
図で示す如く、断面台形とされている。Further, a partition wall 7 is integrally provided behind the end plate 4, and the partition wall 7 partitions a back wall 8 and an intermediate wall 9 with a rib wall 10, so that the inner circumferential surface side of the frame portion 2 is A bottomed fastening opening 12 is formed, and the opening 12 is connected to the body part 2.
The opening height is oriented in the thickness direction of the
As shown in the figure, it has a trapezoidal cross section.
ここに、継手金物３は、躯体部２の内周面から見て、第
２図で示す如く、ポンクス形状とされており、中間壁９
と端板４との間の空間部には、躯体部２と一体のコンク
リート層１３が形成され、ここに、躯体部２の接合端側
は、継手金物３とコンクリート層１３よりなるサンドイ
ッチ構造とされている。Here, the joint hardware 3 is shaped like a poncus, as shown in FIG.
A concrete layer 13 integral with the body part 2 is formed in the space between the body part 2 and the end plate 4, and the joint end side of the body part 2 has a sandwich structure consisting of the joint hardware 3 and the concrete layer 13. has been done.
更に、各締結用開口部１２と対応して、端板４からコン
クリート層１３を貫通して、開口部１２に至るボルト挿
通孔１４が本例では上下２段として形成しである。Further, in this example, bolt insertion holes 14 extending from the end plate 4 through the concrete layer 13 and reaching the openings 12 are formed in two stages, upper and lower, corresponding to each fastening opening 12.
その他、図において、１５は接合孔であり、トンネル軸
方向にセグメントを互いに接合するための孔であり、１
６は接合用の操作開口部である。In addition, in the figure, 15 is a joining hole, which is a hole for joining the segments to each other in the tunnel axis direction;
6 is an operation opening for joining.
１７はグラウト用孔、１８はアンカー鉄筋用ネジポス、
１９は主筋用鋳抜き孔であり、ナツトで締め上げられて
おり、２０はボルト格納用孔であり、ボルト挿通孔１４
の軸心延長線上において、躯体部２に開口部１２の背壁
８を貫通して形成してあり、２１は締結ボルトで両端に
ネジ方向が互いに反対のネジ部２２を有し、２３はその
ナツト、２４は座金である。17 is a hole for grout, 18 is a screw post for anchor reinforcing bar,
19 is a cast-out hole for the main reinforcement, which is tightened with a nut; 20 is a hole for storing a bolt; the bolt insertion hole 14
It is formed to pass through the back wall 8 of the opening 12 in the body part 2 on the axial extension line of Nut 24 is a washer.
２５はシール部材で、端板４とコンクリート層１３との
境界部に設けである。２６はシール用段部を示している
。A seal member 25 is provided at the boundary between the end plate 4 and the concrete layer 13. 26 indicates a seal step.
以上の実施例において、各セ（グメントｌを接合締結す
るには、次のようにして行なわれる。In the above embodiment, each segment 1 is joined and fastened as follows.
相対するセグメントｌの一方側のボルト挿通孔■４およ
びボルト収納孔２０に、第５図の鎖線で示す如くボルト
２１を収めておき、この状態で、相対するボルト挿通孔
１４の孔心を合致させた状態で継手金物３における端板
４を重ね合わせる。The bolt 21 is stored in the bolt insertion hole 4 and the bolt storage hole 20 on one side of the opposing segment l as shown by the chain line in FIG. 5, and in this state, the center of the opposing bolt insertion hole 14 is aligned. In this state, the end plates 4 of the joint hardware 3 are overlapped.
次に、ボルト挿通孔１４および収納孔２０に収められて
いたボルト２１を、第５図の矢示Ｂで示す如く、締結用
開口部１３を介して軸方向に移動させ、相対するボルト
挿通孔１４．１４に貫通させ、ボルト２１のネジ部２２
を開口部１３に突出させる。Next, the bolt 21 housed in the bolt insertion hole 14 and the storage hole 20 is moved in the axial direction through the fastening opening 13 as shown by arrow B in FIG. 14.14, and threaded part 22 of bolt 21
is made to protrude into the opening 13.
而して、座金２４、ナツト２３をネジ部２２に装着させ
、開口部１３内でナツト２３をねじ込むことにより、各
セグメント１が接合締結され、ごこに、トンネル周方向
が各セグメント１でシールドされる。By attaching the washer 24 and nut 23 to the threaded part 22 and screwing the nut 23 into the opening 13, each segment 1 is joined and fastened, and the tunnel circumferential direction is shielded by each segment 1. be done.
また、相対する接合孔１５を介して図外のボルト、ナツ
ト等で締結することにより、トンネル軸方向が各セグメ
ント１でシールドされ、所定のシールドがなされると、
必要に応じて注入孔１７より、グラウト剤等を注入充填
して、トンネル内周面とセグメント１の外周面との漏水
防止等を行なう。In addition, by fastening bolts, nuts, etc. (not shown) through the opposing joining holes 15, the tunnel axis direction is shielded by each segment 1, and when a predetermined shielding is achieved,
If necessary, a grouting agent or the like is injected and filled through the injection hole 17 to prevent water leakage between the inner peripheral surface of the tunnel and the outer peripheral surface of the segment 1.
而して、施工前にあっては、セグメント１の運搬、格納
中においての取扱いにおいて、特に、接合端例の外周面
エツジが欠けるおそれがあるものの、本発明実施例では
、接合物の全面を端板４で閉塞するとともに、側板５で
側壁を被覆していることから、取扱い中の衝撃等によっ
て、外周エツジの欠けが防止される。Before construction, there is a risk that the outer circumferential edge of the joint end may be chipped during handling during transportation and storage of the segment 1, but in the embodiment of the present invention, the entire surface of the joint is Since it is closed by the end plate 4 and the side wall is covered by the side plate 5, the outer peripheral edge is prevented from chipping due to impact etc. during handling.
また、施工中においても叙述と同じように、外周エツジ
欠けが防止される。Furthermore, chipping of the outer circumferential edge is also prevented during construction, as described above.
施工後にあっては、セグメント１の接合部において、継
手金物３による端板４、区画壁７による剛性と、区画壁
７と端板４間に充填固化されているコンクリート層１３
とによるサントイ・ンチ構造により、曲げ剛性は継手金
物３で、圧縮剛性はコンクリート層１３でそれぞれ確保
され、ここに、セグメント接合端の剛性は強大となる。After construction, at the joint of the segment 1, the end plate 4 provided by the joint hardware 3, the rigidity provided by the partition wall 7, and the concrete layer 13 filled and solidified between the partition wall 7 and the end plate 4.
Due to the Santoy-inch structure, the bending rigidity is ensured by the joint hardware 3 and the compressive rigidity is ensured by the concrete layer 13, so that the rigidity of the segment joint ends is great.
（発明の効果） 本発明は以上の通りであり、次の利点がある。(Effect of the invention) The present invention is as described above, and has the following advantages.
コンクリート製り１体部の接合端側に埋設される継手金
物は、躯体部の接合端の全面を被覆する端板と躯体部の
側壁を被覆する左右側板を存しているので、セグメント
接合部における外周エツジの欠けを完べきに防止するこ
とができる。The joint hardware to be buried on the joint end side of a single concrete body consists of an end plate that covers the entire surface of the joint end of the body part, and left and right side plates that cover the side walls of the body part. It is possible to completely prevent chipping of the outer peripheral edge.
また、継手金物は左右側板を連結する区画壁を有し、こ
の区画壁と端板との間にコンクリート層を有することか
ら、セグメント接合端の剛性は、金属材料をコンクリー
ト層とのサンドイッチ構造によって、曲げ剛性、圧縮剛
性の双方においても、充分に確保され、施工後の耐久性
を大幅に向上できる。In addition, the joint hardware has a partition wall that connects the left and right side plates, and a concrete layer between this partition wall and the end plate, so the rigidity of the segment joint end is determined by the sandwich structure between the metal material and the concrete layer. , both bending rigidity and compressive rigidity are sufficiently ensured, and durability after construction can be greatly improved.
本発明は以上の利点を有し、トンふルシールド用セグメ
ントを初め、各種シールド工法に用いられるコンクリー
トセグメントとして実甚大である。The present invention has the above-mentioned advantages and is extremely useful as a concrete segment used in various shield construction methods, including segments for tonful shields.
図面は本発明の実施例を示し、第１図は正面図、第２図
は底面図、第３図は側面図、第４図は第３図Ａ−Ａ線断
面図、第５図は接合部の拡大断面図である。
■・・・セグメント、２・・・躯体部、３・・・継手金
物、４・・・端板、５・・・側板、７・・・区画壁、１
２・・・開口部、１３；・・コンクリート層、１４・・
・ボルト挿通孔。The drawings show an embodiment of the present invention, in which Fig. 1 is a front view, Fig. 2 is a bottom view, Fig. 3 is a side view, Fig. 4 is a sectional view taken along line A-A in Fig. 3, and Fig. 5 is a joint. FIG. ■... Segment, 2... Body part, 3... Joint hardware, 4... End plate, 5... Side plate, 7... Partition wall, 1
2...Opening, 13;...Concrete layer, 14...
・Bolt insertion hole.
Claims (1)
接合端側に、ボルト挿通孔１４を有する継手金物３が埋
設されているコンクリート製セグメント１において、 継手金物３は、躯体部２の接合端の全面を被覆する端板
４を備え、該端板４に左右側板５を連設して躯体部２の
側壁を被覆しており、端板４の背後に所定の間隔を有し
、左右側板５に連結し、かつ、締結用開口部１２を形成
するための区画壁７を有しており、該区画壁７と端板４
間に、コンクリート層１３を有して接合端側がサンドイ
ッチ構造とされ、端板４およびコンクリート層１３を貫
通して締結用開口部１２に至るボルト挿通孔１４を有す
ることを特徴とするコンクリート製セグメント。(1) In a concrete segment 1 in which the body part 2 is made of concrete and a joint hardware 3 having a bolt insertion hole 14 is embedded in the joint end side of the body part 2, the joint hardware 3 is made of concrete. It is provided with an end plate 4 that covers the entire surface of the joint end, and left and right side plates 5 are connected to the end plate 4 to cover the side walls of the frame part 2, and are spaced at a predetermined interval behind the end plate 4, It has a partition wall 7 connected to the left and right side plates 5 and for forming a fastening opening 12, and the partition wall 7 and the end plate 4 are connected to each other.
A concrete segment having a sandwich structure on the joint end side with a concrete layer 13 in between, and having a bolt insertion hole 14 that penetrates the end plate 4 and the concrete layer 13 and reaches the fastening opening 12. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63184835A JP2685519B2 (en) | 1988-07-25 | 1988-07-25 | Concrete segment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63184835A JP2685519B2 (en) | 1988-07-25 | 1988-07-25 | Concrete segment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0235196A true JPH0235196A (en) | 1990-02-05 |
| JP2685519B2 JP2685519B2 (en) | 1997-12-03 |
Family
ID=16160141
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63184835A Expired - Lifetime JP2685519B2 (en) | 1988-07-25 | 1988-07-25 | Concrete segment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2685519B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999018331A1 (en) * | 1997-10-07 | 1999-04-15 | Tarmac Heavy Building Materials Uk Limited | Method of manufacturing a tunnel or shaft lining or pipeline |
| CN106285719A (en) * | 2016-10-13 | 2017-01-04 | 常州中铁城建构件有限公司 | A kind of Novel segment skeleton mounting process |
| CN110805450A (en) * | 2019-10-29 | 2020-02-18 | 华中科技大学 | Segment structure with combined mortise-tenon joint and female-head locking joint connecting assembly |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106761816B (en) * | 2016-11-24 | 2018-08-28 | 同济大学 | A kind of screwed joint connection structure between extra-large shield-driven tunnel section of jurisdiction |
-
1988
- 1988-07-25 JP JP63184835A patent/JP2685519B2/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999018331A1 (en) * | 1997-10-07 | 1999-04-15 | Tarmac Heavy Building Materials Uk Limited | Method of manufacturing a tunnel or shaft lining or pipeline |
| US6328501B1 (en) | 1997-10-07 | 2001-12-11 | Tarmac Heavy Building Materials Uk Limited | Method of manufacturing a tunnel or shaft lining or pipeline |
| CN106285719A (en) * | 2016-10-13 | 2017-01-04 | 常州中铁城建构件有限公司 | A kind of Novel segment skeleton mounting process |
| CN110805450A (en) * | 2019-10-29 | 2020-02-18 | 华中科技大学 | Segment structure with combined mortise-tenon joint and female-head locking joint connecting assembly |
| CN110805450B (en) * | 2019-10-29 | 2021-02-26 | 华中科技大学 | Segment structure with combined mortise-tenon joint and female-head locking joint connecting assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2685519B2 (en) | 1997-12-03 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |