JPH09296681A - Shield tunneling method - Google Patents
Shield tunneling methodInfo
- Publication number
- JPH09296681A JPH09296681A JP13595796A JP13595796A JPH09296681A JP H09296681 A JPH09296681 A JP H09296681A JP 13595796 A JP13595796 A JP 13595796A JP 13595796 A JP13595796 A JP 13595796A JP H09296681 A JPH09296681 A JP H09296681A
- Authority
- JP
- Japan
- Prior art keywords
- shield
- valley
- tunnel
- shield machine
- steel wire
- 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
Landscapes
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、山部と山部との間
の谷部にシ−ルドトンネルを構築する方法に関するもの
である。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for constructing a shield tunnel in a valley between peaks.
【０００２】[0002]
【従来の技術】山有り谷有りの地形において、鉄道とか
水道を敷設する場合、山の部分はトンネルで、谷の部分
は鉄道橋や水道橋で連絡する方法がとられている。ま
た、山部も谷部トンネルで施工する場合は、図５に示す
ように山部ａ１、ａ２の間の谷部ｂを土ｃで埋めた後、
シ−ルドマシンｄを掘進させてセグメントｅを組み立て
る方法がとられている。2. Description of the Related Art In a terrain with mountains and valleys, when laying a railway or water supply, a method is used in which a mountain portion is connected by a tunnel and a valley portion is connected by a railway bridge or a water bridge. Further, when the mountain portion is also constructed by the valley tunnel, after filling the valley portion b between the mountain portions a1 and a2 with the soil c as shown in FIG.
A method of assembling the segment e by excavating the shield machine d is adopted.
【０００３】[0003]
【発明が解決しようとする課題】図５に示す谷部ｂを埋
める方法は、膨大な量の土を必要とするため、工費が高
くなると共に、自然体系を破壊することがある。The method of filling the valley portion b shown in FIG. 5 requires an enormous amount of soil, which increases the construction cost and may destroy the natural system.
【０００４】山部間を鉄道橋や水道橋で連絡する方法
は、図６に示すように、山部ａ１から山部ａ２までシ−
ルドマシンｄを搬送する段取りが非常に大変である。特
に、クレ−ン等が入れない地形では大型の索道が必要と
なる。また、山部ａ２側からの発進に際して、反力構造
ｆを有するステ−ジｇを構築する必要もある。従って、
連続して施工ができないため、工期が長くなると共に、
工費も高くなってしまう。As shown in FIG. 6, the method of connecting the mountain portions by a railroad bridge or a water bridge is such that a mountain portion a1 to a mountain portion a2 is connected.
It is very difficult to set up to transport the rudder machine d. In particular, a large cableway is required in terrain where cranes and the like cannot enter. Further, when starting from the mountain portion a2 side, it is necessary to construct a stage g having a reaction force structure f. Therefore,
Since construction cannot be continued, the construction period becomes longer and
The construction cost will also increase.
【０００５】[0005]
【発明の目的】本発明は、上記のような問題点を解決す
るためになされたもので、山部と山部の間の谷部に鉄道
や水道を敷設する場合において、工費の低減及び工期の
短縮化を図ることができるシ−ルド工法を提供すること
を目的とする。SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and in the case of laying a railroad or a water supply in a valley portion between mountain portions, the construction cost can be reduced and the construction period can be reduced. It is an object of the present invention to provide a shield construction method capable of shortening the length.
【００６】[0086]
【課題を解決するための手段】上記課題を解決するため
の手段として、請求項１は、山部と山部との間の谷部に
シ−ルドトンネルを構築する方法において、シ−ルドマ
シンにより山部内にシ−ルドトンネルを構築した後、前
記シ−ルドトンネル内に設置したアンカ−体とシ−ルド
マシンとの間に配した引張り鋼線を緊張すると共に、シ
−ルドマシンを山部に設けたアンカ−構造物から吊り鋼
線で吊った状態で、シ−ルドマシン後方の谷部の空中に
セグメントを組み立てながら、シ−ルドジャッキにより
シ−ルドマシンを前方山部まで推進させ、谷部の空中に
シ−ルドトンネルを構築することを特徴とした、シ−ル
ド工法を提供する。[Means for Solving the Problems] As a means for solving the above-mentioned problems, a first aspect of the present invention is a method for constructing a shield tunnel in a valley portion between a mountain portion and a shield machine. After constructing the shield tunnel in the mountain part, tension the tension steel wire arranged between the anchor body installed in the shield tunnel and the shield machine, and install the shield machine in the mountain part. While assembling the segment in the air in the valley behind the shield machine with the suspension steel wire suspended from the anchor structure, the shield jack propels the shield machine up to the front ridge and in the air in the valley. A shield construction method is provided, which is characterized by constructing a shield tunnel.
【０００７】また、請求項２は、上記請求項１に記載の
シ−ルド工法において、前記谷部の空中に構築したシ−
ルドトンネルは、シ−ルドマシンの推進に伴って順次、
前記アンカ−構造物から吊り鋼線で吊ることを特徴とし
た、シ−ルド工法である。According to a second aspect of the present invention, in the shield construction method according to the first aspect, a shield constructed in the air in the valley portion is used.
The rud tunnel, in sequence with the promotion of the shield machine,
The shield construction method is characterized in that the steel structure is hung from the anchor structure with a hanging steel wire.
【０００８】さらに、請求項３は、上記請求項１又は２
に記載のシ−ルド工法において、前記谷部の空中に構築
したシ−ルドトンネルは、セグメント躯体内に軸方向に
配した定着鋼線を所定リングごとに緊張、定着して一体
化することを特徴とした、シ−ルド工法である。Further, claim 3 is the above claim 1 or 2.
In the shield construction method described in (1), the shield tunnel constructed in the air of the valley portion is constructed by tensioning and fixing anchoring steel wires axially arranged in the segment body for each predetermined ring. It is a characteristic shield method.
【０００９】[0009]
【発明の実施の形態】以下、図面を参照しながら、本発
明の一実施の形態について説明する。 ＜イ＞山部の掘進 図１に示すように、本実施の形態では、山部１ａとそれ
に対向する山部１ｂ間の谷部１ｃにシ−ルドトンネルを
構築する場合について説明する。先ず、シ−ルドマシン
２により山部１ａ内にシ−ルドトンネル３を構築し、シ
−ルドマシン２のカッタ面が谷部１ｃに露出するか、又
はその手前で掘進を停止する。Embodiments of the present invention will be described below with reference to the drawings. <A> Excavation of mountain portion As shown in FIG. 1, in the present embodiment, a case will be described in which a shield tunnel is constructed in a valley portion 1c between a mountain portion 1a and a mountain portion 1b facing it. First, the shield machine 3 constructs the shield tunnel 3 in the mountain portion 1a, and the cutter surface of the shield machine 2 is exposed in the valley portion 1c, or the excavation is stopped before this.
【００１０】＜ロ＞谷部の推進準備 シ−ルドマシン２のカッタ面が谷部１ｃに露出したら、
スキンプレ−ト外面の頂部等に係留突起２１を取り付け
る。山部１ａの頂上等には、アンカリッジ等の吊り用ア
ンカ−構造物４を建設する。そして、係留突起２１と吊
り用アンカ−構造物４間に吊り鋼線４１を張設し、シ−
ルドマシン２が垂れ下がらないように吊る。吊り鋼線４
１は、吊り用アンカ−構造物４に設置されたジャッキに
より、引張り、送り出しが可能となっている。<B> Preparation for Promotion of Valley Part When the cutter surface of the shield machine 2 is exposed in the valley part 1c,
The mooring projection 21 is attached to the top of the outer surface of the skin plate. An anchor structure 4 for suspension such as anchor ridges is constructed on the top of the mountain portion 1a. Then, a suspension steel wire 41 is stretched between the mooring protrusion 21 and the suspension anchor structure 4, and
Hang so that Rud Machine 2 does not hang down. Hanging steel wire 4
A jack 1 installed on the hanging anchor structure 4 enables pulling and feeding.
【００１１】また、図２に示すように、既設のシ−ルド
トンネル３内に引張り用アンカ−体５を固定し、それに
は引張り用ジャッキ５１ａを所定数取り付ける。一方、
シ−ルドマシン２側にも引張り用ジャッキ５１ｂを対応
する数だけ取り付け、両ジャッキ５１ａ、５１ｂ間に引
張り鋼線５１を配する。なお、引張り用ジャッキはアン
カ−体側かシ−ルドマシン側のどちらか一方でも良い。Further, as shown in FIG. 2, a tension anchor body 5 is fixed in an existing shield tunnel 3 and a predetermined number of tension jacks 51a are attached thereto. on the other hand,
A corresponding number of pulling jacks 51b are attached to the shield machine 2 side, and a pulling steel wire 51 is arranged between the jacks 51a and 51b. The pulling jack may be on either the anchor body side or the shield machine side.
【００１２】＜ハ＞谷部の推進 吊り鋼線４１及び引張り鋼線５２に所定の緊張力を付与
した状態で、シ−ルドマシン２の後方の谷部１ｃの空中
に、セグメント６をボルト締結等で組み立てながら、シ
−ルドジャッキ５３によりセグメント６に反力を取っ
て、シ−ルドマシン２を前方山部１ｂまで推進させる。
このとき、吊り鋼線４１は所定の緊張力を維持しなが
ら、シ−ルドマシン２の推進に追従して徐々に送り出
し、また、引張り鋼線５２も所定の緊張力を維持しなが
ら徐々に送り出すようにする。<C> Propulsion of valley portion With the predetermined tension applied to the suspension steel wire 41 and the tension steel wire 52, the segment 6 is bolted in the air in the valley portion 1c behind the shield machine 2. While assembling at 1, the reaction force is applied to the segment 6 by the shield jack 53 to propel the shield machine 2 to the front mountain portion 1b.
At this time, the suspended steel wire 41 is gradually fed while following the propulsion of the shield machine 2 while maintaining a predetermined tension force, and the tensile steel wire 52 is also gradually fed while maintaining a predetermined tension force. To
【００１３】上記のように谷部１ｃの空中に構築したシ
−ルドトンネル３１は、図２に示すように、セグメント
６の躯体内に軸方向に配した複数の定着鋼線７を、シ−
ルドマシン２に設置した定着用ジャッキ５４で緊張し
て、所定リングごとに定着具７１により定着することに
よって一体化を図る。定着鋼線７は、図３に示すよう
に、セグメント６の躯体に軸方向に開設した引張り鋼線
挿通孔６１内に配置されており、所定リングごとのセグ
メント６の端面には、定着具７１を収納する定着具取付
穴６２が開設されている。なお、定着具７１の取り付け
位置はずらすようにする。As shown in FIG. 2, the shield tunnel 31 constructed in the air in the valley portion 1c as described above has a plurality of anchoring steel wires 7 axially arranged in the body of the segment 6 as shown in FIG.
The fixing jacks 54 installed in the rud machine 2 are tensioned, and fixing is performed by the fixing tool 71 for each predetermined ring to achieve integration. As shown in FIG. 3, the fixing steel wire 7 is arranged in a pulling steel wire insertion hole 61 opened in the frame of the segment 6 in the axial direction. A fixing tool mounting hole 62 for accommodating is installed. In addition, the attachment position of the fixing tool 71 is displaced.
【００１４】また、谷部１ｃの空中に構築したシ−ルド
トンネル３１は、図１に示すように、シ−ルドマシン２
の推進に伴って順次、吊り用アンカ−構造物４から吊り
鋼線４１で吊るようにする。このためには、図４に示す
ように、セグメントリング頂部に位置するセグメント６
に、吊り鋼線４１の張設角度に応じた吊り鋼線挿通孔６
３を開設しておく。また、そのセグメント６の内周面側
には定着用突起６４を設け、その定着面６５は吊り鋼線
挿通孔６３と直角になるよう形成する。Further, the shield tunnel 31 constructed in the air in the valley 1c is, as shown in FIG.
The suspension steel structure 41 suspends the suspension anchor structure 4 from the suspension anchor structure 4 sequentially. For this purpose, as shown in FIG. 4, the segment 6 located at the top of the segment ring is
The hanging steel wire insertion hole 6 according to the tension angle of the hanging steel wire 41
Open 3. Further, a fixing projection 64 is provided on the inner peripheral surface side of the segment 6, and the fixing surface 65 is formed so as to be perpendicular to the hanging steel wire insertion hole 63.
【００１５】以上のようにして、対向する山部１ｂまで
空中にシ−ルドトンネル３１を構築したら、シ−ルドマ
シン２の係留突起２１を取り外し、後方のセグメント６
に反力を取って通常の掘進を行う。シ−ルドマシン２が
ある程度まで山部１ｂ内に推進したら、引張り鋼線５
２、引張り用ジャッキ５１ａ、５１ｂ、引張り用アンカ
−体５、定着用ジャッキ５４を撤去する。After the shield tunnel 31 is constructed in the air up to the facing mountain portion 1b as described above, the mooring protrusion 21 of the shield machine 2 is removed, and the rear segment 6 is formed.
Take a reaction force and perform a normal dig. Once the shield machine 2 has been pushed into the ridge 1b to some extent, the tensile steel wire 5
2. Pulling jacks 51a and 51b, pulling anchor body 5, and fixing jack 54 are removed.
【００１６】[0016]
【発明の効果】以上のように本発明は、シ−ルドマシン
を用いて、山部から連続して谷部の空中にシ−ルドトン
ネルを構築することができる。従って、従来のように谷
部を埋めたり、シ−ルドマシンを運搬する必要がないた
め、工期の短縮及び工費の低減を図ることができる。As described above, according to the present invention, a shield machine can be used to construct a shield tunnel in the air in the valley portion continuously from the mountain portion. Therefore, it is not necessary to fill the troughs or carry the shield machine as in the conventional case, so that the construction period and the construction cost can be shortened.
【図１】 本発明の施工方法の説明図FIG. 1 is an illustration of a construction method of the present invention.
【図２】 シ−ルドマシン及びシ−ルドトンネルの構造
の説明図FIG. 2 is an explanatory view of a structure of a shield machine and a shield tunnel.
【図３】 セグメントの説明図[Figure 3] Explanatory diagram of segment
【図４】 セグメントの説明図FIG. 4 Explanatory diagram of segment
【図５】 従来技術の説明図FIG. 5 is an explanatory view of a conventional technique.
【図６】 従来技術の説明図FIG. 6 is an explanatory diagram of a conventional technique.
Claims (3)
ネルを構築する方法において、 シ−ルドマシンにより山部内にシ−ルドトンネルを構築
した後、 前記シ−ルドトンネル内に設置したアンカ−体とシ−ル
ドマシンとの間に配した引張り鋼線を緊張すると共に、
シ−ルドマシンを山部に設けたアンカ−構造物から吊り
鋼線で吊った状態で、 シ−ルドマシン後方の谷部の空中にセグメントを組み立
てながら、シ−ルドジャッキによりシ−ルドマシンを前
方山部まで推進させ、 谷部の空中にシ−ルドトンネルを構築することを特徴と
した、 シ−ルド工法。1. A method of constructing a shield tunnel in a valley between a mountain portion and a mountain portion, wherein a shield tunnel is constructed in the mountain portion by a shield machine and then in the shield tunnel. While tensioning the tensile steel wire placed between the installed anchor body and the shield machine,
While assembling the segment in the air in the valley behind the shield machine while suspending the shield machine from the anchor structure provided in the slope, the shield jack is used to move the shield machine to the front slope. A shield construction method characterized by propelling a shield tunnel in the air in the valley.
て、前記谷部の空中に構築したシ−ルドトンネルは、シ
−ルドマシンの推進に伴って順次、前記アンカ−構造物
から吊り鋼線で吊ることを特徴とした、シ−ルド工法。2. The shield construction method according to claim 1, wherein the shield tunnel constructed in the air in the valley portion is sequentially hung from the anchor structure with the steel wire suspended from the anchor structure. The shield construction method, which is characterized by being hung in.
おいて、前記谷部の空中に構築したシ−ルドトンネル
は、セグメント躯体内に軸方向に配した定着鋼線を所定
リングごとに緊張、定着して一体化することを特徴とし
た、シ−ルド工法。3. The shield tunnel construction method according to claim 1 or 2, wherein the shield tunnel constructed in the air of the valley portion has anchoring steel wires axially arranged in the segment body for each predetermined ring. A shield construction method that is characterized by tension, fixation and integration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13595796A JPH09296681A (en) | 1996-05-02 | 1996-05-02 | Shield tunneling method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13595796A JPH09296681A (en) | 1996-05-02 | 1996-05-02 | Shield tunneling method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH09296681A true JPH09296681A (en) | 1997-11-18 |
Family
ID=15163803
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13595796A Pending JPH09296681A (en) | 1996-05-02 | 1996-05-02 | Shield tunneling method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH09296681A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104790964A (en) * | 2015-04-29 | 2015-07-22 | 中铁十八局集团轨道交通工程有限公司 | Construction method for shield tunneling machine moving-out on condition of tunnel portal deviation |
| CN105736880A (en) * | 2016-04-29 | 2016-07-06 | 中铁工程装备集团有限公司 | Novel multi-channel central rotary connector of shield tunneling machine |
-
1996
- 1996-05-02 JP JP13595796A patent/JPH09296681A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104790964A (en) * | 2015-04-29 | 2015-07-22 | 中铁十八局集团轨道交通工程有限公司 | Construction method for shield tunneling machine moving-out on condition of tunnel portal deviation |
| CN105736880A (en) * | 2016-04-29 | 2016-07-06 | 中铁工程装备集团有限公司 | Novel multi-channel central rotary connector of shield tunneling machine |
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