JPH09158692A - Lining of shielding tunnel and steel segment for secondary lining - Google Patents

Lining of shielding tunnel and steel segment for secondary lining

Info

Publication number
JPH09158692A
JPH09158692A JP7324255A JP32425595A JPH09158692A JP H09158692 A JPH09158692 A JP H09158692A JP 7324255 A JP7324255 A JP 7324255A JP 32425595 A JP32425595 A JP 32425595A JP H09158692 A JPH09158692 A JP H09158692A
Authority
JP
Japan
Prior art keywords
lining
tunnel
steel
secondary lining
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.)
Pending
Application number
JP7324255A
Other languages
Japanese (ja)
Inventor
Masayoshi Iwahashi
正佳 岩橋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Steel Corp
Original Assignee
Sumitomo Metal Industries Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sumitomo Metal Industries Ltd filed Critical Sumitomo Metal Industries Ltd
Priority to JP7324255A priority Critical patent/JPH09158692A/en
Publication of JPH09158692A publication Critical patent/JPH09158692A/en
Pending legal-status Critical Current

Links

Classifications

    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/20Hydro energy

Landscapes

  • Lining And Supports For Tunnels (AREA)

Abstract

PROBLEM TO BE SOLVED: To attain economical design by improving dynamic strength and water stop property to internal water pressure or the like, assembling property and workability. SOLUTION: Plural steel segments A for secondary lining are assembled in a ring shape on the internal space side of primary lining of a shielding tunnel by butting welding or the like. In the steel segments A for secondary lining, CT shape steel 2 on which bending is performed is similarly welded and joined in the tunnel circumferential direction to the bedrock side of a steel plate 1 on which bending is performed in a finish radius of a tunnel, and a stiffening material 3 is also welded and joined in the tunnel axial direction. Plural holes 5 are arranged in the stiffening material 3 to reduce weight. A rubber material 4 is arranged in a part contacting with primary lining on a flange outside surface of the CT shape steel 2, and a damage preventive effect and a cushion effect of primary lining are imparted. A synthetic resin foaming body is filled between a segment for primary lining and the steel segments A for secondary lining.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【発明の属する技術分野】本願発明は、シールド工法に
よるシールドトンネルの覆工、特にトンネル内空側に構
築される二次覆工の構造、および二次覆工に用いられる
二次覆工用鋼製セグメントに関するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lining of a shield tunnel by a shield construction method, particularly a structure of a secondary lining constructed on the inner side of the tunnel, and a steel for secondary lining used for the secondary lining. It relates to the manufacturing segment.

【0002】[0002]

【従来の技術】下水道、共同溝、鉄道、道路、地下河川
等のトンネルをシールド工法によって構築する場合、円
弧状の一次覆工材(セグメント)をリング状に組み立
て、このリングをトンネル軸方向に連結して行く方法が
採られている。
2. Description of the Related Art When constructing a tunnel for sewers, common ditches, railways, roads, underground rivers, etc. by the shield construction method, an arc-shaped primary lining material (segment) is assembled in a ring shape and this ring is arranged in the tunnel axial direction. The method of connecting is adopted.

【0003】特に、地下河川等として使用するシールド
トンネルの一次覆工の内空側には、セグメントの継手か
らの漏水防止、さらにトンネル仕上がり面の平滑化等の
目的で二次覆工が構築される場合が多い。
In particular, on the inner side of the primary lining of a shield tunnel used as an underground river, a secondary lining is constructed to prevent water leakage from the joints of the segments and to smooth the finished surface of the tunnel. Often.

【0004】[0004]

【発明が解決しようとする課題】通常、二次覆工には、
無筋コンクリートまたは鉄筋コンクリートを使用する
が、無筋コンクリートの場合、クラックが発生しやすく
漏水が問題となる。また、鉄筋コンクリートの場合は、
そのトンネルが大口径であればあるほど、トンネル内に
おいて鉄筋の組立作業に多大な時間と労力が必要とな
り、覆工厚も大きくなる。その結果、掘削断面が大きく
なり、工事費が高騰する原因になる。
Normally, the secondary lining is
Although unreinforced concrete or reinforced concrete is used, in the case of unreinforced concrete, cracks easily occur and water leakage becomes a problem. In the case of reinforced concrete,
The larger the diameter of the tunnel, the more time and labor it takes to assemble the reinforcing bars inside the tunnel, and the thicker the lining is. As a result, the excavated cross section becomes large, which causes a rise in construction costs.

【0005】近年、特に地下河川のニーズが高まる傾向
にあり、各関係機関において、トンネル覆工材の設計手
法の検討が進められているが、その内容は土圧、地下水
圧等の外力と内水圧の両者を一次覆工材であるセグメン
トだけに負担させ、二次覆工は力学上考慮しない設計手
法が主である。
In recent years, the need for underground rivers has been particularly increasing, and various related organizations are studying the design method of tunnel lining materials. The contents of these are internal forces such as earth pressure and groundwater pressure. The main design method is that both the hydraulic pressure is applied only to the segment that is the primary lining material, and the secondary lining is not considered mechanically.

【0006】また、地下河川の場合、トンネル内に雨水
による土砂や、最近では酸性雨が流れる可能性があるこ
とから、セグメントの内空側に鋼殻がむき出しの構造と
なっている合成セグメント等を使用した場合は、腐食防
止の面からも二次覆工を構築する必要性があるものと考
えられている。
[0006] In the case of underground rivers, since there is a possibility that sediment due to rainwater, or recently acid rain may flow into the tunnel, a composite segment in which the steel shell is exposed on the inner side of the segment, etc. It is considered that it is necessary to construct a secondary lining from the viewpoint of corrosion prevention when using.

【0007】ところが、土圧、地下水圧の外力および内
水圧を一次覆工であるセグメントに負担させる設計手法
は、セグメント厚を増大させる原因となり、また、地下
河川の下流域では内水圧が増大し、セグメント継手が過
大な設計となるものと考えられる。
However, the design method in which the external force such as earth pressure, groundwater pressure and internal water pressure are borne by the segment, which is the primary lining, causes the segment thickness to increase, and the internal water pressure increases in the downstream region of the underground river. It is thought that the segment joint will be oversized.

【0008】一方では、鉄筋コンクリートにより構築さ
れた二次覆工を、内水圧により作用するトンネル円周方
向の引張力および曲げモーメントに対処する構造として
考慮する設計法も検討されているが、内水圧が作用し二
次覆工に引張力が作用した場合、従来の二次覆工構造で
は、コンクリートのひび割れやそれに伴う漏水が懸念さ
れ、その耐久性、止水性を立証するのが困難なため、こ
のような設計法による実際の施工は未だないのが実状で
ある。
On the other hand, a design method is also considered in which the secondary lining constructed by reinforced concrete is considered as a structure for dealing with the tensile force and bending moment in the circumferential direction of the tunnel acting by the internal water pressure. When a tensile force acts on the secondary lining due to the action of, the conventional secondary lining structure is concerned about cracking of concrete and water leakage accompanying it, and it is difficult to prove its durability and waterproofness. The actual situation is that actual construction using such a design method has not yet occurred.

【0009】本願発明は、従来技術における上述のよう
な課題の解決を図ったものであり、内水圧等に対する力
学的強度および止水性、組立性、施工性に優れ、経済的
な設計が可能なシールドトンネルの覆工およびその覆工
に用いる二次覆工用鋼製セグメントを提供することを目
的としたものである。
The present invention is intended to solve the above-mentioned problems in the prior art, is excellent in mechanical strength against internal water pressure and the like, waterproofness, assemblability, and workability, and enables economical design. It is intended to provide a lining of a shield tunnel and a steel segment for secondary lining used for the lining.

【0010】[0010]

【課題を解決するための手段】本願発明のシールドトン
ネルの覆工(請求項1)は、シールドトンネルの一次覆
工の内空側に、二次覆工としてトンネル仕上がり面を構
成する鋼板を有する複数の二次覆工用セグメントをリン
グ状に接合してなるものである。
The lining of a shield tunnel according to the present invention (claim 1) has a steel plate forming a finished surface of the tunnel as a secondary lining on the inner side of the primary lining of the shield tunnel. It is formed by joining a plurality of secondary lining segments in a ring shape.

【0011】すなわち、通常の一次覆工のセグメント同
様、トンネル円周方向および軸方向に分割された鋼製の
二次覆工用セグメントを用いて二次覆工リングを形成す
ることで、従来の鉄筋コンクリートによる二次覆工で懸
念されたトンネル内での鉄筋組立作業による工期の長期
化や工事費の高騰の問題が解決され、さらに設計法につ
いても、一次覆工を土圧、水圧等の外力に対処する部材
として、二次覆工を内水圧に対処する部材としての設計
が可能となる。
That is, as in the case of the normal primary lining segment, the secondary lining ring is formed by using the steel secondary lining segment divided in the tunnel circumferential direction and the axial direction, so that the conventional The problem of lengthening the construction period and rising construction costs due to the reinforcing bar assembly work inside the tunnel, which was a concern for the secondary lining with reinforced concrete, was solved.Furthermore, regarding the design method, the primary lining was applied to external pressure such as earth pressure and water pressure. It is possible to design the secondary lining as a member for coping with internal water pressure.

【0012】なお、一次覆工の構成については特に限定
する必要はなく、従来の鋼製セグメント、コンクリート
セグメント、合成セグメント等を用いた通常の一次覆工
でよい。
The structure of the primary lining is not particularly limited, and a conventional primary lining using a conventional steel segment, concrete segment, synthetic segment or the like may be used.

【0013】請求項2は、二次覆工用セグメントの鋼板
の地山側に、トンネル円周方向に延びる複数の形鋼と、
トンネル軸方向に延びる複数の補剛材が一体化されてい
る場合を限定したものである。
According to a second aspect of the invention, a plurality of shaped steels extending in the tunnel circumferential direction are provided on the ground side of the steel sheet of the secondary lining segment,
The case where a plurality of stiffening members extending in the tunnel axis direction are integrated is limited.

【0014】トンネル円周方向に延びる形鋼としては、
例えばCT形鋼、山形鋼、チャンネル形鋼等が考えら
れ、二次覆工の曲率に対応する曲率に加工され、内水圧
等に対する対曲げ部材として機能する。また、製作時、
運搬時、組立時の変形を防止する目的でトンネル軸方向
に補剛材を設けている。
As a shaped steel extending in the circumferential direction of the tunnel,
For example, CT section steel, angle section steel, channel section steel, etc. are conceivable, which are processed into a curvature corresponding to the curvature of the secondary lining and function as a bending member against internal water pressure. Also, at the time of production,
A stiffening material is provided in the axial direction of the tunnel to prevent deformation during transportation and assembly.

【0015】請求項3は、一次覆工と二次覆工を構成す
る鋼板との間に、合成樹脂発泡体を充填した場合を限定
したもので、内水圧が作用して二次覆工のリングが拡大
したときのクッション効果が期待できる。
The third aspect limits the case where the synthetic resin foam is filled between the steel plates forming the primary lining and the secondary lining, and the internal water pressure acts to cause the secondary lining to operate. You can expect a cushioning effect when the ring expands.

【0016】請求項4は、二次覆工用セグメントの鋼板
の内空側に、重防食加工等の防食加工を施した場合を限
定したもので、腐食に対する条件の厳しい地下河川トン
ネル等においても、十分な耐腐食性を有する構造とする
ことができる。
[0016] Claim 4 limits the case where anticorrosion processing such as heavy anticorrosion processing is applied to the inner air side of the steel sheet of the secondary lining segment, even in underground river tunnels and the like under severe conditions against corrosion. A structure having sufficient corrosion resistance can be obtained.

【0017】この防食加工は、二次覆工用セグメント単
体に施す場合と、二次覆工体がリング状に組み立てられ
た状態でトンネル内から実施する場合とが考えられる。
This anticorrosion treatment is considered to be applied to the secondary lining segment alone or to be performed from inside the tunnel with the secondary lining body assembled in a ring shape.

【0018】本願発明の二次覆工用鋼製セグメント(請
求項5)は、上記のシールドトンネルの覆工に用いるた
めのものであり、シールドトンネルの一次覆工の内空側
において二次覆工としてトンネル仕上がり面を構成する
鋼板と、この鋼板の地山側に一体化されたトンネル円周
方向に延び二次覆工の曲率に対応する曲率を有する複数
の形鋼およびトンネル軸方向に延びる複数の補剛材とか
らなる。
The steel segment for secondary lining of the present invention (claim 5) is used for lining the above-mentioned shield tunnel, and the secondary lining is provided on the inner side of the primary lining of the shield tunnel. Steel plate that constitutes the finished surface of the tunnel as a work, a plurality of shaped steels integrated in the ground side of the steel plate, extending in the circumferential direction of the tunnel and having a curvature corresponding to the curvature of the secondary lining, and a plurality of extending in the axial direction of the tunnel. It consists of a stiffener.

【0019】[0019]

【発明の実施の形態】図1および図2は、本願発明にお
ける二次覆工用鋼製セグメントAの一実施形態を示した
もので、トンネルの仕上がり半径に曲げ加工した鋼板1
に、この鋼板1同様に曲げ加工したCT形鋼2のウェブ
をトンネル円周方向に溶接接合し、補剛材3を鋼板1の
トンネル軸方向に溶接接合してある。また、補剛材3に
は二次覆工用セグメントAの重量軽減化のため、複数の
孔5を設けている。
1 and 2 show an embodiment of a steel segment A for secondary lining in the present invention, which is a steel plate 1 bent to a finished radius of a tunnel.
Further, the web of the CT-shaped steel 2 bent similarly to the steel plate 1 is welded and bonded in the tunnel circumferential direction, and the stiffening material 3 is welded and bonded in the tunnel axial direction of the steel plate 1. Further, the stiffener 3 is provided with a plurality of holes 5 in order to reduce the weight of the secondary lining segment A.

【0020】本実施形態において、CT形鋼2のフラン
ジ外面の一次覆工と接する部分には、ゴム材4を設置し
てある。このゴム材4は、一次覆工の損傷防止と、内水
圧が作用して二次覆工のリングが拡大したときのクッシ
ョン効果を期待したものである。
In the present embodiment, a rubber material 4 is installed on the portion of the CT section steel 2 which is in contact with the primary lining of the flange outer surface. This rubber material 4 is expected to prevent damage to the primary lining and to have a cushioning effect when the inner water pressure acts to expand the ring of the secondary lining.

【0021】さらに、この二次覆工用鋼製セグメントA
がリング形状に組み立てられた後、隣接する二次覆工用
鋼製セグメントAの鋼板1どうしを突合せ溶接により一
体化させるため、鋼板1の端部には受け板6を設置して
ある。
Furthermore, this steel segment A for secondary lining
After being assembled into a ring shape, a receiving plate 6 is installed at the end of the steel plate 1 in order to integrate the steel plates 1 of the adjacent secondary lining steel segments A by butt welding.

【0022】なお、その際の突合せ溶接は、自動溶接ロ
ボット等を用いて行うことができ、分割されている二次
覆工用鋼製セグメントAを接続し、一体化することによ
って内水圧に耐え得る構造としている。
The butt welding at that time can be performed by using an automatic welding robot or the like, and the divided secondary lining steel segments A are connected and integrated to withstand internal water pressure. It has a structure to gain.

【0023】図3は、図1および図2に示した二次覆工
用鋼製セグメントAをリング状に組み立てた状態のトン
ネル軸方向の断面図(トンネル下部側)を示したもので
ある。
FIG. 3 is a sectional view (at the lower side of the tunnel) of the secondary lining steel segment A shown in FIGS. 1 and 2 assembled in a ring shape in the tunnel axial direction.

【0024】この例では、一次覆工のセグメント8と二
次覆工用鋼製セグメントAとの間に形成される空間部に
対し、二次覆工用鋼製セグメントAに設けた注入孔7か
ら合成樹脂発泡体13を充填し、クッション効果を与え
ている。
In this example, the injection hole 7 provided in the secondary lining steel segment A is provided in the space formed between the primary lining segment 8 and the secondary lining steel segment A. Is filled with the synthetic resin foam 13 to give a cushioning effect.

【0025】図4は、このリング状に組み立てた二次覆
工をトンネル内空側から見た平面図である。図中、実線
は二次覆工用鋼製セグメントAどうしの接合部であり、
一点鎖線は一次覆工のセグメント8の接合部である。
FIG. 4 is a plan view of the secondary lining assembled in the ring shape as seen from the inside of the tunnel. In the figure, the solid line is the joint between the steel segments A for secondary lining,
The alternate long and short dash line is the joining portion of the segment 8 of the primary lining.

【0026】通常、一次覆工のセグメント8は千鳥組に
組み立てられているが、本実施形態において二次覆工用
鋼製セグメントAはイモ継ぎに組み立てる構造とするこ
とで、水平な溶接部分がトンネル軸方向に沿って一直線
上にくるようにし、溶接作業の効率化を図っている。
Normally, the segments 8 of the primary lining are assembled in a zigzag set, but in the present embodiment, the steel segment A for secondary lining is constructed in a potato joint structure so that the horizontal welded portion is The welding work is made more efficient by aligning it in a straight line along the tunnel axis.

【0027】なお、二次覆工用鋼製セグメントAの鋼板
1の内空側には重防食被覆等による防食加工を行うこと
で、腐食に対する条件の厳しい地下河川トンネルにおい
ても十分な耐腐食性を有する構造とすることができる。
Incidentally, the inner air side of the steel sheet 1 of the secondary lining steel segment A is subjected to anticorrosion treatment by a heavy anticorrosion coating or the like, so that sufficient corrosion resistance can be obtained even in an underground river tunnel under severe corrosion conditions. Can be provided.

【0028】図5は、二次覆工用鋼製セグメントAの他
の実施形態を示したもので、鋼板1の地山側に設置する
形鋼として山形鋼10を用いている。図1の実施形態の
場合より、内水圧による曲げモーメントが小さい場合等
に有効である。
FIG. 5 shows another embodiment of the steel segment A for secondary lining, in which the angle steel 10 is used as the shape steel to be installed on the ground side of the steel plate 1. This is effective when the bending moment due to the internal water pressure is smaller than that in the embodiment of FIG.

【0029】図6は、二次覆工用鋼製セグメントAのさ
らに他の実施形態を示したもので、鋼板1の地山側に設
置する形鋼としてチャンネル形鋼11を用いている。
FIG. 6 shows still another embodiment of the secondary lining steel segment A, in which a channel section steel 11 is used as a section steel installed on the ground side of the steel sheet 1.

【0030】[0030]

【発明の効果】 鋼製の二次覆工用セグメントを用いて二次覆工リン
グを形成することで、従来の鉄筋コンクリートによる二
次覆工で懸念されたトンネル内での鉄筋組立作業による
工期の長期化や工事費の高騰の問題が解決される。
EFFECTS OF THE INVENTION By forming the secondary lining ring by using the steel secondary lining segment, it is possible to reduce the construction period of the reinforcing bar assembly work in the tunnel, which was a concern in the secondary lining of conventional reinforced concrete. The problems of long term and high construction cost will be solved.

【0031】 地下河川トンネル等において、高い内
水圧が作用し、トンネル周方向に引張力が作用した場合
においても、二次覆工のスキンプレートとしての鋼板を
対引張部材として機能させることができ、一次覆工を土
圧、水圧等の外力に対処する部材として、二次覆工を内
水圧に対処する部材としての設計が可能となる。
In a subterranean river tunnel or the like, even when a high internal water pressure acts and a tensile force acts in the circumferential direction of the tunnel, the steel plate as the skin plate of the secondary lining can function as a tension member. The primary lining can be designed as a member for coping with external force such as earth pressure and water pressure, and the secondary lining as a member for coping with internal water pressure.

【0032】 また、従来の二次覆工のように腐食防
止およびトンネル内面の平滑化の目的だけなく、施工時
間の短縮が図れる他、二次覆工の力学部材としての使用
が可能となることから一次覆工厚の薄肉化が図れる。
In addition to the purpose of preventing corrosion and smoothing the inner surface of the tunnel as in the conventional secondary lining, the construction time can be shortened and the secondary lining can be used as a mechanical member. Therefore, the thickness of the primary lining can be reduced.

【0033】 請求項2の構造においては、トンネル
円周方向の形鋼を、内水圧等に対する対曲げ部材として
機能させることができ、またトンネル軸方向の補剛材に
より製作時、運搬時、組立時の変形を防止することがで
きる。
In the structure of claim 2, the shaped steel in the tunnel circumferential direction can be made to function as a bending member against internal water pressure and the like, and the stiffening material in the axial direction of the tunnel can be used for fabrication, transportation, and assembly. It is possible to prevent time deformation.

【0034】 請求項3の構造においては、内水圧に
より二次覆工のリングが拡大したとき等に、一次覆工と
二次覆工との間に充填した合成樹脂発泡体のクッション
効果および止水性向上の効果が得られる。
According to the structure of claim 3, when the ring of the secondary lining expands due to internal water pressure, the cushioning effect and the stopping effect of the synthetic resin foam filled between the primary lining and the secondary lining are achieved. The effect of improving the water content is obtained.

【0035】 請求項4の構造においては、二次覆工
用セグメントの鋼板の内空側に施した重防食加工等の防
食加工により、地下河川トンネル等においても、十分な
耐腐食性が得られる。
In the structure of claim 4, sufficient corrosion resistance is obtained even in an underground river tunnel or the like by anticorrosion processing such as heavy anticorrosion processing performed on the inner air side of the steel sheet of the secondary lining segment. .

【図面の簡単な説明】[Brief description of the drawings]

【図1】本願発明における二次覆工用鋼製セグメントの
一実施形態を示す斜視図である。
FIG. 1 is a perspective view showing an embodiment of a steel segment for secondary lining in the present invention.

【図2】図1に対応する断面図である。FIG. 2 is a sectional view corresponding to FIG.

【図3】一次覆工の内空側に図1の二次覆工用鋼製セグ
メントをリング状に組み立てた状態を示すトンネル軸方
向の断面図(トンネル下部)である。
FIG. 3 is a sectional view in the axial direction of the tunnel (lower part of the tunnel) showing a state in which the steel segment for secondary lining of FIG. 1 is assembled in a ring shape on the inner space side of the primary lining.

【図4】図3に対応するトンネル内空側からみた平面図
である。
FIG. 4 is a plan view corresponding to FIG. 3 seen from the inside of the tunnel.

【図5】二次覆工用鋼製セグメントの他の実施形態を示
す断面図である。
FIG. 5 is a cross-sectional view showing another embodiment of the secondary lining steel segment.

【図6】二次覆工用鋼製セグメントのさらに他の実施形
態を示す断面図である。
FIG. 6 is a sectional view showing still another embodiment of the steel segment for secondary lining.

【符号の説明】[Explanation of symbols]

A…二次覆工用鋼製セグメント、1…鋼板、2…CT形
鋼、3…補剛材、4…ゴム材、5…孔、6…受け板、7
…注入孔、8…セグメント(一次覆工)、9…突合せ溶
接による接合部、10…山形鋼、11…チャンネル形
鋼、12…一次覆工のセグメント接合部、13…合成樹
脂発泡体
A ... Steel segment for secondary lining, 1 ... Steel plate, 2 ... CT steel, 3 ... Stiffening material, 4 ... Rubber material, 5 ... Hole, 6 ... Receiving plate, 7
... injection hole, 8 ... segment (primary lining), 9 ... butt-welding joint, 10 ... chevron steel, 11 ... channel steel, 12 ... primary lining segment joint, 13 ... synthetic resin foam

Claims (5)

【特許請求の範囲】[Claims] 【請求項1】 シールドトンネルの一次覆工の内空側
に、二次覆工としてトンネル仕上がり面を構成する鋼板
を有する複数の二次覆工用セグメントをリング状に接合
してなることを特徴とするシールドトンネルの覆工。
1. A plurality of secondary lining segments having a steel plate forming a tunnel finish surface as secondary linings are joined in a ring shape on the inner side of the primary lining of the shield tunnel. The lining of the shield tunnel.
【請求項2】 前記鋼板の地山側には、トンネル円周方
向に延び二次覆工の曲率に対応する曲率を有する複数の
形鋼と、トンネル軸方向に延びる複数の補剛材が一体化
されている請求項1記載のシールドトンネルの覆工。
2. A plurality of shaped steels extending in the tunnel circumferential direction and having a curvature corresponding to the curvature of the secondary lining and a plurality of stiffening members extending in the tunnel axial direction are integrated on the ground side of the steel plate. The lining of the shield tunnel according to claim 1.
【請求項3】 前記一次覆工と前記二次覆工を構成する
鋼板との間には合成樹脂発泡体が充填されている請求項
1または2記載のシールドトンネルの覆工。
3. The shield tunnel lining according to claim 1, wherein a synthetic resin foam is filled between the steel plates forming the primary lining and the secondary lining.
【請求項4】 前記鋼板の内空側には防食加工が施され
ている請求項1、2または3記載のシールドトンネルの
覆工。
4. The shield tunnel lining according to claim 1, 2 or 3, wherein an anti-corrosion treatment is applied to an inner air side of the steel plate.
【請求項5】 シールドトンネルの一次覆工の内空側に
設置される二次覆工用セグメントであって、二次覆工と
してトンネル仕上がり面を構成する鋼板と、前記鋼板の
地山側に一体化されたトンネル円周方向に延び二次覆工
の曲率に対応する曲率を有する複数の形鋼およびトンネ
ル軸方向に延びる複数の補剛材とからなることを特徴と
する二次覆工用鋼製セグメント。
5. A secondary lining segment installed on the inner air side of the primary lining of the shield tunnel, which is a steel plate forming a tunnel finishing surface as the secondary lining and is integrally formed on the ground side of the steel plate. Steel for secondary lining, characterized in that it comprises a plurality of shaped steels extending in the circumferential direction of the generalized tunnel and having a curvature corresponding to the curvature of the secondary lining and a plurality of stiffening materials extending in the axial direction of the tunnel. Made segment.
JP7324255A 1995-12-13 1995-12-13 Lining of shielding tunnel and steel segment for secondary lining Pending JPH09158692A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7324255A JPH09158692A (en) 1995-12-13 1995-12-13 Lining of shielding tunnel and steel segment for secondary lining

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7324255A JPH09158692A (en) 1995-12-13 1995-12-13 Lining of shielding tunnel and steel segment for secondary lining

Publications (1)

Publication Number Publication Date
JPH09158692A true JPH09158692A (en) 1997-06-17

Family

ID=18163768

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7324255A Pending JPH09158692A (en) 1995-12-13 1995-12-13 Lining of shielding tunnel and steel segment for secondary lining

Country Status (1)

Country Link
JP (1) JPH09158692A (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003013695A (en) * 2001-07-03 2003-01-15 Konoike Constr Ltd Pipeline for underground burial
JP2007321458A (en) * 2006-06-01 2007-12-13 Nippon Steel Corp Segment
JP2008075393A (en) * 2006-09-22 2008-04-03 Jfe Engineering Kk Steel panel, assembly thereof, and tunnel reinforcing structure and reinforcing method using the same
WO2013154498A1 (en) * 2012-04-12 2013-10-17 Mine To Mill Equipment Pte Ltd A method for installing a liner plate and the liner plate
CN104989432A (en) * 2015-05-29 2015-10-21 上海隧道工程有限公司 Construction method for opening section steel grouting to reinforce tunnel
CN109741675A (en) * 2018-09-29 2019-05-10 国家电网有限公司 Shield tunnel liner ring model producing device, production method and lining cutting ring model
CN110206564A (en) * 2019-05-28 2019-09-06 同济大学 A kind of shield tunnel ruggedized construction and construction method based on U-shaped steel plate
CN110645013A (en) * 2019-11-12 2020-01-03 哈尔滨工业大学 Tunnel shock-absorbing structure capable of being quickly repaired after earthquake
CN112127942A (en) * 2020-08-24 2020-12-25 中铁第四勘察设计院集团有限公司 Connection structure of evacuation platform in shield zone at interconnection channel
CN115492605A (en) * 2022-10-27 2022-12-20 中铁二十局集团南方工程有限公司 Segment lining structure and construction method

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003013695A (en) * 2001-07-03 2003-01-15 Konoike Constr Ltd Pipeline for underground burial
JP2007321458A (en) * 2006-06-01 2007-12-13 Nippon Steel Corp Segment
JP2008075393A (en) * 2006-09-22 2008-04-03 Jfe Engineering Kk Steel panel, assembly thereof, and tunnel reinforcing structure and reinforcing method using the same
US9610991B2 (en) 2012-04-12 2017-04-04 Makuri Technology Pte Ltd. Method for installing a liner plate and the liner plate
WO2013154498A1 (en) * 2012-04-12 2013-10-17 Mine To Mill Equipment Pte Ltd A method for installing a liner plate and the liner plate
CN104989432B (en) * 2015-05-29 2018-02-23 上海隧道工程有限公司 The construction method in opening shaped steel consolidation by grouting tunnel
CN104989432A (en) * 2015-05-29 2015-10-21 上海隧道工程有限公司 Construction method for opening section steel grouting to reinforce tunnel
CN109741675A (en) * 2018-09-29 2019-05-10 国家电网有限公司 Shield tunnel liner ring model producing device, production method and lining cutting ring model
CN110206564A (en) * 2019-05-28 2019-09-06 同济大学 A kind of shield tunnel ruggedized construction and construction method based on U-shaped steel plate
CN110206564B (en) * 2019-05-28 2023-11-03 同济大学 Shield tunnel reinforcing structure based on U-shaped steel plate and construction method
CN110645013A (en) * 2019-11-12 2020-01-03 哈尔滨工业大学 Tunnel shock-absorbing structure capable of being quickly repaired after earthquake
CN112127942A (en) * 2020-08-24 2020-12-25 中铁第四勘察设计院集团有限公司 Connection structure of evacuation platform in shield zone at interconnection channel
CN115492605A (en) * 2022-10-27 2022-12-20 中铁二十局集团南方工程有限公司 Segment lining structure and construction method

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