JPH01207600A - Lining in shield driving method - Google Patents
Lining in shield driving methodInfo
- Publication number
- JPH01207600A JPH01207600A JP63031274A JP3127488A JPH01207600A JP H01207600 A JPH01207600 A JP H01207600A JP 63031274 A JP63031274 A JP 63031274A JP 3127488 A JP3127488 A JP 3127488A JP H01207600 A JPH01207600 A JP H01207600A
- Authority
- JP
- Japan
- Prior art keywords
- tightening
- lining
- segments
- tightening member
- water
- 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
- 238000000034 method Methods 0.000 title claims description 9
- 238000010276 construction Methods 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 13
- 239000004744 fabric Substances 0.000 abstract description 2
- 238000007789 sealing Methods 0.000 abstract 4
- 230000002093 peripheral effect Effects 0.000 abstract 1
- 239000000463 material Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 230000036772 blood pressure Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003466 welding Methods 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] 本発明はシールド工法における覆工方法に関する。[Detailed description of the invention] [Industrial application field] The present invention relates to a lining method in a shield construction method.
[従来の技術]
従来、シールド工法によって掘削したトンネルの一次覆
工は、シールド本体を推進用ジヤツキにより地山中に押
込んだ後、シールドテール部の内側でコンクリート製ま
たは金属製の複数の幅大の覆工用セグメントをパツキン
を介装しながら取付金具を介しボルト止めすることによ
って組み立てている。[Conventional technology] Conventionally, the primary lining of tunnels excavated using the shield construction method involves pushing the shield body into the ground using propulsion jacks, and then constructing multiple wide concrete or metal linings inside the shield tail. The lining segments are assembled by bolting them together using mounting brackets while interposing the packing.
[発明が解決しようとする課題]
上記従来技術においては、覆工用セグメントが大形で高
価であり、かつ小口径トンネルには適用できないととも
にIJi 、Aが大であるため組み立て機械を使用して
組み立てる必要があった。また各セグメントはパツキン
を介装しながらボルトとナツトで連結するものであるた
め組み立て作業が面倒であった。[Problems to be Solved by the Invention] In the above-mentioned conventional technology, the lining segment is large and expensive, and it cannot be applied to small diameter tunnels, and IJi and A are large, so it is difficult to use an assembly machine. It needed to be assembled. In addition, each segment was connected with bolts and nuts while intervening gaskets, making the assembly process troublesome.
そこで本発明は覆工部セグメントを容易に組み立てるこ
とができかつ小口径トンネルにも適用可能なシールド工
法における覆工方法を提供することを目的とする。SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a lining method in the shield construction method, which allows lining segments to be easily assembled and is also applicable to small diameter tunnels.
[課題を解決するための手段]
本発明のシールド工法における覆工方法は、シールド本
体のテール部の内側に環状の止水部材を配設し、この止
水部材の内側に伸縮可能な環状の締付部材を配設し、こ
の締付部材の内側に多数のセグメントを前記締付部材の
締付力に抗して組み立てることにより覆工部を形成する
ようにしたものである。[Means for Solving the Problems] The lining method in the shield construction method of the present invention includes disposing an annular water-stopping member inside the tail portion of the shield body, and installing an expandable annular water-stopping member inside the water-stopping member. The lining portion is formed by disposing a tightening member and assembling a large number of segments inside the tightening member against the tightening force of the tightening member.
[作 用]
上記方法によって、止水部材により止水された状態で締
付部材の締付力により多数のセグメントが一体的に固定
された覆工部が形成される。このためセグメントの組み
立てを手作業で行うことができるとともにセグメントの
止水パツキンの介装およびボルト止め作業を解消できる
。また小口径のトンネルにも適用できる。[Function] By the above method, a lining portion is formed in which a large number of segments are integrally fixed by the tightening force of the tightening member while water is cut off by the water cutoff member. Therefore, the segments can be assembled manually, and the work of interposing water-stop gaskets and bolting the segments can be eliminated. It can also be applied to small diameter tunnels.
[実施例]
以下、本発明の一実施例を添付図面を参照して説明する
。[Example] Hereinafter, an example of the present invention will be described with reference to the accompanying drawings.
第1図乃至第7図に示すように、シールド本体1はその
内部でテール部たるテールスキン2に取付けられた複数
の推進用のジヤツキ3を有し、各ジヤツキ3のロッド4
の後端ブツシュリング5が設けられている。この推進用
ジヤツキ3は第5図においてシールド本体lの段階的な
前進を完了し、次いでロッド4を収縮させた状態にある
。この状態において、シールド本体1のテールスキン2
の内側に適宜形状の環状例えば円形の筒状をなす1ヒ水
部材6を配置する。この止水部材6は耐漏水性の布また
は樹脂または鋼材等から形成されている6次に止水部材
6の内側に環状の締付部材7を配設する。この締付部材
7は伸縮可能でかつ締付付勢可能な構造を有しており、
例えば彎曲状の4本の締付杆7Aをスプリング7Bによ
り環状に連結して構成される。この締付部材7は環状の
スプリングに芯線を挿通したものあるいはゴム材により
構成したもの等でもよい、その後第3図のようにトンネ
ル孔の周方向の幅tが小さく形成された小形のセグメン
ト8を多数前記環状の締付部材7の内側に順次組み立て
、最後に模となるテーパ面8Aを有する天井セグメン)
8Bを孔内側から押し上げて前記締付部材7の締付力に
抗して圧入し、これによって締付部材7の締付力により
多数のセグメント8.8Bが血圧状態で一体的に固定さ
れた覆工部9が形成される。この場合セグメント8を保
持し天井セグメン)8Bを挿入する間1組立架台lOを
用いる。As shown in FIGS. 1 to 7, the shield body 1 has a plurality of propulsion jacks 3 attached to a tail skin 2 serving as a tail portion inside the shield body 1, and a rod 4 of each jack 3.
A rear end bushing ring 5 is provided. In FIG. 5, the propulsion jack 3 is in a state in which the stepwise advancement of the shield body 1 is completed and then the rod 4 is retracted. In this state, the tail skin 2 of the shield body 1
A hydrant member 6 having a suitably shaped annular shape, for example, a circular cylindrical shape, is arranged inside the. This water stop member 6 is made of water-leakproof cloth, resin, steel, or the like, and an annular tightening member 7 is disposed inside the water stop member 6. This tightening member 7 has a structure that can be expanded and contracted and can be tightened and biased,
For example, it is constructed by connecting four curved tightening rods 7A in a ring shape with a spring 7B. This tightening member 7 may be a ring-shaped spring with a core wire inserted through it, or may be made of a rubber material, etc. Then, as shown in FIG. are sequentially assembled inside the annular tightening member 7, and finally a ceiling segment having a tapered surface 8A serving as a model)
8B was pushed up from the inside of the hole and press-fitted against the clamping force of the clamping member 7, whereby a large number of segments 8.8B were integrally fixed in a blood pressure state by the clamping force of the clamping member 7. A lining portion 9 is formed. In this case, one assembly stand 1O is used while holding the segment 8 and inserting the ceiling segment 8B.
次に前記覆工部9に反力を担わせて前記推進用ジヤツキ
3を作動させてシールド本体1を前進させ、ロッド4を
収縮させる。この工程を反復して覆工を行うものであり
、次の覆工を行う場合には覆工部9の止水部材6と次に
配設する止水部材6回士をパツキン11等を介し止水構
造により連接する。この接続手段は図示しない接着テー
プ、ファスナ、圧着材や溶接材等を用いればよい。Next, the lining section 9 is made to bear a reaction force and the propulsion jack 3 is actuated to advance the shield body 1 and contract the rod 4. This process is repeated to perform the lining, and when performing the next lining, the water stop member 6 of the lining section 9 and the next water stop member to be installed are connected through the packing 11 etc. Connected by water-stop structure. For this connection means, an adhesive tape, a fastener, a pressure bonding material, a welding material, etc. (not shown) may be used.
このように上記実施例においては、シールド本体lのテ
ールスキン2の内側に止水部材6および締付部材7を配
設し、この締付部材7内に多数の小形セグメン)8.8
Bを組み付けることにより、止水部材6によって止水効
果が得られ、かつ締付部材7の締付力によって多数のセ
グメン)8.8Bが一体的に固定された覆工部9が形成
される。このため、セグメン)8.8Bは小形で安価で
あり、かつ手作業による組み付けが可能であるとともに
小口径トンネルにも適用できる。また各セグメン)8.
8Bはパツキンを介装せずに組付けることができボルト
止めが不要であるため作業が簡単であり、工費も削減で
きる。また覆工後に加わる土圧や水圧等の外力に充分耐
抗することができる。In this way, in the above embodiment, the water stop member 6 and the tightening member 7 are arranged inside the tail skin 2 of the shield body l, and the tightening member 7 includes a large number of small segments (8.8).
By assembling B, a water-stopping effect is obtained by the water-stopping member 6, and a lining part 9 is formed in which a large number of segments) 8.8B are integrally fixed by the tightening force of the tightening member 7. . Therefore, Segment) 8.8B is small and inexpensive, and can be assembled by hand, and can be applied to small-diameter tunnels. Also, each segment)8.
8B can be assembled without intervening gaskets and does not require bolting, making the work easy and reducing construction costs. It can also withstand external forces such as earth pressure and water pressure that are applied after lining.
なお本発明は上記実施例に限定されるものではなく、本
発明の要旨の範囲内において種々の変形実施が可能であ
る0例えば止水部材および締付部材の形状、構造、材質
等は適宜選定すればよく、またセグメントの寸法。Note that the present invention is not limited to the above embodiments, and various modifications can be made within the scope of the gist of the present invention.For example, the shape, structure, material, etc. of the water stop member and the tightening member may be selected as appropriate. Also the dimensions of the segment.
数、材質等は適宜選定すればよい。また天井セグメント
は第8図に示すようにトンネル孔の軸線に沿う水平方向
に圧入してもよい。The number, material, etc. may be selected as appropriate. Alternatively, the ceiling segment may be press-fitted horizontally along the axis of the tunnel hole, as shown in FIG.
[発明の効果]
本発明は、シールド本体のテール部の内側に筒状の止水
部材を配設し、この止水部材の内側に伸縮可能な環状の
締付部材を配設し、この締付部材の内側に多数のセグメ
ントを前記締付部材の締付力に抗して組み立てることに
より覆工部を形成するようにしたことにより、セグメン
トを容易に組み立てることができかつ小口径トンネルに
も適用可使なシールド工法における覆工方法を提供でき
る。[Effects of the Invention] The present invention provides a cylindrical water-stop member inside the tail portion of the shield body, an expandable annular tightening member inside the water-stop member, and By forming a lining part by assembling a large number of segments inside the attachment member against the tightening force of the tightening member, the segments can be easily assembled and can be used even in small diameter tunnels. It is possible to provide a lining method in the applicable shield construction method.
第1図乃至第7図は本発明の一実施例を示し、第1図は
覆工部の斜視図、第2図は覆工状態を示す概略説明図、
第3図は覆工部の縦断面図、第4図は第3図のA−AV
j拡大断面図、第5図乃至第7図は覆工順序を示す要部
の断面図、第8図は他の実施例を示す平面図である。
1・・シールド本体
2・・テールスキン(テール部)
6φ・止水部材
7・・締付部材
8.8B・・セグメント
9・・覆工部
特 許 出 願 株式会社 加賀田組代理人弁
理士 牛 木 護
を口
第3図 −
第2図
第51冴
第6図1 to 7 show an embodiment of the present invention, FIG. 1 is a perspective view of the lining part, FIG. 2 is a schematic explanatory diagram showing the lining state,
Figure 3 is a longitudinal cross-sectional view of the lining, and Figure 4 is A-AV of Figure 3.
j An enlarged sectional view, FIGS. 5 to 7 are sectional views of main parts showing the lining order, and FIG. 8 is a plan view showing another embodiment. 1.Shield body 2..Tail skin (tail part) 6φ.Water stop member 7..Tightening member 8.8B..Segment 9..Lining section Patent application Kagata Gumi Co., Ltd. Representative Patent Attorney Ushi Tree Mamoruoguchi Figure 3 - Figure 2 Figure 51 Sae Figure 6
Claims (1)
設し、この止水部材の内側に伸縮可能な環状の締付部材
を配設し、この締付部材の内側に多数のセグメントを前
記締付部材の締付力に抗して組み立て、前記締付部材の
締付力により多数のセグメントが一体的に固定された覆
工部を形成することを特徴とするシールド工法における
覆工方法。A cylindrical water-stopping member is arranged inside the tail portion of the shield body, an extensible annular tightening member is arranged inside this water-stopping member, and a large number of segments are arranged inside this tightening member. A lining method in the shield construction method, characterized in that the lining is assembled against the tightening force of the tightening member to form a lining portion in which a large number of segments are integrally fixed by the tightening force of the tightening member. .
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP63031274A JP2550637B2 (en) | 1988-02-12 | 1988-02-12 | Lining method in shield method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP63031274A JP2550637B2 (en) | 1988-02-12 | 1988-02-12 | Lining method in shield method |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH01207600A true JPH01207600A (en) | 1989-08-21 |
JP2550637B2 JP2550637B2 (en) | 1996-11-06 |
Family
ID=12326752
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP63031274A Expired - Lifetime JP2550637B2 (en) | 1988-02-12 | 1988-02-12 | Lining method in shield method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2550637B2 (en) |
-
1988
- 1988-02-12 JP JP63031274A patent/JP2550637B2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JP2550637B2 (en) | 1996-11-06 |
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