JP2759416B2 - Open shield machine - Google Patents
Open shield machineInfo
- Publication number
- JP2759416B2 JP2759416B2 JP5323610A JP32361093A JP2759416B2 JP 2759416 B2 JP2759416 B2 JP 2759416B2 JP 5323610 A JP5323610 A JP 5323610A JP 32361093 A JP32361093 A JP 32361093A JP 2759416 B2 JP2759416 B2 JP 2759416B2
- Authority
- JP
- Japan
- Prior art keywords
- shield machine
- open shield
- jack
- concrete box
- propulsion
- 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.)
- Expired - Lifetime
Links
Landscapes
- Excavating Of Shafts Or Tunnels (AREA)
Description
【0001】[0001]
【産業上の利用分野】本発明は、地下道や地下水路等の
地下構造物の構築を行うオープンシールド機機に関する
ものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an open shield machine for constructing underground structures such as underground passages and underground waterways.
【0002】[0002]
【従来の技術】オープンシールド工法は、地上から掘削
する開削工法(オープン工法)とまったく地上には影響
を与えずにシールド機の先端で掘削するシールド工法の
それぞれの長所を生かした合理性に富む工法である。2. Description of the Related Art The open shield method is rich in rationality, making use of the advantages of the open-cut method (open method), which excavates from the ground, and the shield method, which excavates at the tip of a shield machine without affecting the ground at all. It is a construction method.
【0003】先にこのオープンシールド工法を説明する
と、図6、図7に示すように図中1はオープンシールド
機で、これは左右の側壁板1aを主たる構成部材として
その間を底板や梁部材で連結して前面、後面及び上面を
開口し、先端を刃口2として形成し、また側壁板1aの
中央又は後端近くに推進ジャッキ3を左右位置で後方に
向け上下に複数並べて配設する。側壁板1aの先端部に
はスライド自在な可動側板1bを設けた。The open shield method will be described first. As shown in FIGS. 6 and 7, reference numeral 1 denotes an open shield machine, which comprises left and right side wall plates 1a as main constituent members and a bottom plate and a beam member therebetween. The front surface, the rear surface, and the upper surface are connected to form an opening, the front end is formed as a blade port 2, and a plurality of propulsion jacks 3 are arranged vertically rearward at the left and right positions near the center or the rear end of the side wall plate 1a. A slidable movable side plate 1b is provided at the tip of the side wall plate 1a.
【0004】図中7は、推進ジャッキ3の後端に適宜上
方から吊り下ろして配設する受圧部材で、ボックス鋼材
又は型鋼を用いた枠体よりなる。また、図中8はオープ
ンシールド機1内に前部の掘削部と後部とを区画する隔
壁である。[0004] In the drawing, reference numeral 7 denotes a pressure-receiving member which is appropriately suspended from above at the rear end of the propulsion jack 3, and is formed of a frame made of box steel or die steel. In the figure, reference numeral 8 denotes a partition wall which partitions a front excavation portion and a rear portion in the open shield machine 1.
【0005】オープンシールド工法は発進坑と到達坑と
の間で施工される。図示は省略するが発進坑内で前記オ
ープンシールド機を組立て、発進坑の前の地盤を地上に
設置したシャベル系の掘削機6で掘削し、該オープンシ
ールド機1の推進ジャッキ3を伸長して発進坑内の反力
壁に反力をとってオープンシールド機1を前進させ、地
下構造物を形成する第1番目のコンクリート函体4を上
方から吊り降し、オープンシールド機1のテール部内で
縮めた推進ジャッキ3の後方にセットする。推進ジャッ
キ3と反力壁の間にはストラットを配設して適宜間隔調
整をする。また、発進坑はシートパイル等の土留壁で構
成し、オープンシールド機1を発進させるにはこの土留
壁を一部鏡切りするが、必要に応じて薬液注入等で発進
坑の前方部分に地盤改良を施しておくこともある。[0005] The open shield method is carried out between a starting pit and a reaching pit. Although not shown, the open shield machine is assembled in the start pit, the ground in front of the start pit is excavated by a shovel type excavator 6 installed on the ground, and the propulsion jack 3 of the open shield machine 1 is extended to start. The open shield machine 1 was advanced by applying a reaction force to the reaction wall in the mine, and the first concrete box 4 forming the underground structure was suspended from above and shrunk in the tail portion of the open shield machine 1. Set behind the propulsion jack 3. A strut is arranged between the propulsion jack 3 and the reaction wall to adjust the distance as appropriate. The starting pit is composed of a retaining wall such as a sheet pile, and the retaining wall is partially mirror-cut in order to start the open shield machine 1. Some improvements have been made.
【0006】次いで、同様に掘削機6でオープンシール
ド機1の前面又は上面から土砂を掘削しかつ排土してオ
ープンシールド機1を前進させ、前記第1番目のコンク
リート函体4の前に第2番目のコンクリート函体4をシ
ールド機1のテール部内に吊り下ろす。以下、同様の掘
進及びコンクリート函体4のセット工程を繰返して、順
次コンクリート函体4を縦列に地中に埋設し、ドーザシ
ョベル等を使用して後方のコンクリート函体4上に埋戻
し5を施し、振動ローラ等でかため、図示は省略するが
オープンシールド機1が到達坑まで達したならばこれを
分解・撤去して工事を完了する。Next, similarly, the excavator 6 excavates earth and sand from the front surface or the upper surface of the open shield machine 1 and discharges the earth to advance the open shield machine 1, and moves the open shield machine 1 forward before the first concrete box 4. The second concrete box 4 is suspended in the tail of the shield machine 1. Hereinafter, the same excavation and setting process of the concrete box 4 are repeated, and the concrete boxes 4 are sequentially buried in the ground in a column, and the backfill 5 is placed on the rear concrete box 4 using a dozer shovel or the like. Although not shown, if the open shield machine 1 reaches the destination pit, it is disassembled and removed to complete the construction.
【0007】[0007]
【発明が解決しようとする課題】カーブ施工の場合に
は、左右の推進ジャッキ3のうち曲がろうとする側のジ
ャッキをフリーとし、反対側のジャッキのみを伸長す
る。このようにすれば、カーブに沿った外側が大きく押
し出され、オープンシールド機1は大きく曲がる。In the case of curve construction, of the left and right propulsion jacks 3, the jack on the side to be bent is free, and only the jack on the opposite side is extended. By doing so, the outside along the curve is greatly pushed out, and the open shield machine 1 is largely bent.
【0008】しかし、伸長する側の推進ジャッキと反対
側の推進ジャッキもこれがフリーとなって引きずられ伸
びてしまうので、効率的な曲がり動作が得られないおそ
れがある。[0008] However, the propulsion jack on the opposite side to the propulsion jack on the extension side also becomes free and dragged and extended, so that an efficient bending operation may not be obtained.
【0009】本発明の目的は前記従来例の不都合を解消
し、確実な曲がりが得られるオープンシールド機を提供
することにある。It is an object of the present invention to provide an open shield machine which can solve the above-mentioned disadvantages of the prior art and can obtain a reliable bending.
【0010】[0010]
【課題を解決するための手段】本発明は前記目的を達成
するため、前面、後面及び上面を開口し、側壁板の内側
に推進ジャッキを後方に向けて左右位置にそれぞれ上下
に複数並べて配設したオープンシールド機において、推
進ジャッキに併設するべく、オープンシールド機のテー
ル部側と先頭のコンクリート函体側とをロッドで連結
し、このロッドをジャッキで牽引可能とする引き戻し装
置を設けたことを要旨とするものである。According to the present invention, in order to achieve the above object, the front, rear and upper surfaces are opened, and a plurality of propulsion jacks are arranged inside the side wall plate at the left and right positions in the left and right positions. In the open shield machine, the tail side of the open shield machine and the top concrete box side were connected by a rod so that it could be attached to the propulsion jack. It is assumed that.
【0011】[0011]
【作用】本発明によれば、カーブ施工の場合に伸長する
側の推進ジャッキと反対側の推進ジャッキもこれがフリ
ーとなって引きずられ伸びてしまうが、これを引き戻し
装置で強制的に縮小させることで、オープンシールド機
の確実な曲がりが得られる。また、オープンシールド機
の直線前進時でもこの引き戻し装置で左右の推進ジャッ
キで強制的に縮小させることで、より迅速な作業が可能
となる。According to the present invention, in the case of curve construction, the propulsion jack on the side extending and the propulsion jack on the opposite side also become free to be dragged and extended, but this is forcibly reduced by the retraction device. As a result, a reliable bending of the open shield machine can be obtained. In addition, even when the open shield machine is moving straight ahead, the retracting device can forcibly reduce the size by the left and right propulsion jacks, thereby enabling a quicker operation.
【0012】[0012]
【実施例】以下、図面について本発明の実施例を詳細に
説明する。図1は本発明のオープンシールド機によるオ
ープンシールド工法の1実施例を示す縦断側面図で、前
記オープンシールド工法を示す図6、図7と同一構成要
素には同一参照符号を付したものである。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a longitudinal sectional side view showing one embodiment of an open shield method using an open shield machine of the present invention. The same components as those in FIGS. 6 and 7 showing the open shield method are given the same reference numerals. .
【0013】先に、本発明のオープンシールド機1につ
いて説明すると、オープンシールド機1は従来のと同じ
く、前面、後面及び上面を開口し、側壁板1aの内側に
推進ジャッキ3を後方に向けて上下に複数並べて配設し
たものである。First, the open shield machine 1 according to the present invention will be described. The open shield machine 1 has a front surface, a rear surface, and an upper surface opened as in the prior art, and the propulsion jack 3 is directed rearward inside the side wall plate 1a. A plurality of them are arranged vertically.
【0014】図2〜図5に示すように、オープンシール
ド機1は側壁板1aの先端部にスライドジャッキ9で押
し出し・引込みを行う可動側板1bを設けている。そし
て、スライドジャッキ9の後方に推進ジャッキ3が配置
される。As shown in FIGS. 2 to 5, the open shield machine 1 is provided with a movable side plate 1b which is pushed and retracted by a slide jack 9 at the tip of a side wall plate 1a. Then, the propulsion jack 3 is arranged behind the slide jack 9.
【0015】図中10はH型鋼等鋼製枠体による受圧部材
で、これはコンクリート函体4と同じような大きさであ
り、図4に示すように先頭のコンクリート函体4の前端
面に重ね、これを貫通するネジ鋼棒等の緊張材11でコン
クリート函体4に固定したものである。図中12は緊張材
11の端部の定着を行うものとして定着板およびナットの
組合せによる定着具で、コンクリート函体4側では、先
頭のコンクリート函体4もしくはその後方のコンクリー
ト函体4に箱抜き凹部13を形成し、この凹部13に緊張材
11の挿入孔を連通させて、該凹部13内で定着具12での固
定を行う。In the figure, reference numeral 10 denotes a pressure receiving member made of a steel frame such as an H-shaped steel, which has a size similar to that of the concrete box 4, and is provided on the front end face of the leading concrete box 4 as shown in FIG. It is stacked and fixed to the concrete box 4 with a tension member 11 such as a screw steel rod penetrating therethrough. 12 in the figure is tension material
A fixing device comprising a combination of a fixing plate and a nut for fixing the end of 11. On the concrete box 4 side, a box-cut recess 13 is formed in the leading concrete box 4 or the concrete box 4 behind it. A tension material in this recess 13
The fixing holes are fixed by the fixing device 12 in the concave portions 13 by communicating the insertion holes 11.
【0016】前記受圧部材10は後方へ向けてスカート状
のカラー部14を一体に形成し、このカラー部14にコンク
リート函体4の前部を嵌込むとともに、コンクリート函
体4の前端面と受圧部材10との間にはネオプレンゴム等
による緩衝材15を介在させた。The pressure receiving member 10 is integrally formed with a skirt-shaped collar portion 14 toward the rear. The front portion of the concrete box 4 is fitted into the collar portion 14, and the pressure receiving member 10 is in contact with the front end face of the concrete box 4. A buffer 15 made of neoprene rubber or the like was interposed between the member 10.
【0017】図3に示すように、オープンシールド機1
と前記受圧部材10とをPC鋼棒によるロッド16で連結す
るが、このロッド16は牽引ジャッキ17で牽引可能とし、
これらロッド16と牽引ジャッキ17との組合せからなる引
き戻し装置18は推進ジャッキ3に併設する。As shown in FIG. 3, the open shield machine 1
And the pressure receiving member 10 are connected by a rod 16 made of a PC steel rod, and the rod 16 can be pulled by a towing jack 17,
A retraction device 18 composed of a combination of the rod 16 and the traction jack 17 is provided alongside the propulsion jack 3.
【0018】次に、このような本発明のオープンシール
ド機1を用いたオープンシールド工法について説明す
る。オープンシールド工法は、発進坑と到達坑との間で
施工される。発進坑19内で前記オープンシールド機1を
組立てる。Next, an open shield method using such an open shield machine 1 of the present invention will be described. The open shield method is constructed between the starting pit and the reaching pit. The open shield machine 1 is assembled in the starting pit 19.
【0019】このようにして、発進坑19の前の地盤をオ
ープンシールド機1内のバックホータイプのシャベル系
掘削機6で掘削し、該オープンシールド機1の推進ジャ
ッキ3を伸長して発進坑19内の反力壁20に反力をとって
オープンシールド機1を前進させ、地下構造物を形成す
る第1番目のコンクリート函体4を上方から吊り降し、
オープンシールド機1内で縮めた推進ジャッキ3の後方
にセットする。この第1番目のコンクリート函体4は前
端面に前記受圧部材10を取付けてあり、また、後方には
受圧部材7を吊り下ろして配置し、また、受圧部材7と
反力壁20の間には推進ジャッキ21を配置した。In this manner, the ground in front of the starting pit 19 is excavated by the backhoe type shovel type excavator 6 in the open shield machine 1, and the propulsion jack 3 of the open shield machine 1 is extended to start the starting pit 19 The open shield machine 1 is moved forward by applying a reaction force to the reaction wall 20 inside, and the first concrete box 4 forming the underground structure is suspended from above,
It is set behind the propelled jack 3 that has been shortened in the open shield machine 1. The first concrete box 4 has the pressure-receiving member 10 attached to the front end face, and the pressure-receiving member 7 is suspended from the rear, and is disposed between the pressure-receiving member 7 and the reaction wall 20. Arranged the propulsion jack 21.
【0020】次いで、同様にオープンシールド機1内の
バックホータイプのシャベル系掘削機6でオープンシー
ルド機1の前面から前方の土砂を掘削しかつ排土し、推
進ジャッキ3を伸ばしてオープンシールド機1を前進さ
せ、推進ジャッキ3を縮小する。Next, similarly, the backhoe-type shovel excavator 6 in the open shield machine 1 excavates and removes earth and sand from the front of the open shield machine 1 and extends the propulsion jack 3 to open the open shield machine 1. Is advanced, and the propulsion jack 3 is reduced.
【0021】この推進ジャッキ3の縮小分、推進ジャッ
キ21を伸長して受圧部材7および第1番目のコンクリー
ト函体4を押し出す。この押し出し分推進ジャッキ21を
縮め、第2目のコンクリート函体4を1番目のコンクリ
ート函体4の後に縦列になるように、発進坑19内に吊り
下ろし配置する。The pressure receiving member 7 and the first concrete box 4 are pushed out by extending the propulsion jack 21 by the reduced amount of the propulsion jack 3. The propulsion jack 21 is contracted by the amount of the extrusion, and the second concrete box 4 is suspended and arranged in the starting pit 19 so as to be in a row behind the first concrete box 4.
【0022】以下、同様にオープンシールド機1の前方
の土砂を掘削・排土する工程と、オープンシールド機1
内の推進ジャッキ3を伸長してコンクリート函体4を反
力にしてオープンシールド機1を前進させる工程と、オ
ープンシールド機1のテール部内で縮めた推進ジャッキ
3に当接するまで発進坑1側より推進ジャッキ21でコン
クリート函体4を押し進める推進工程と、発進坑19内で
のコンクリート函体4の吊り下ろし工程を適宜繰り返
す。Hereinafter, similarly, a step of excavating and discharging earth and sand in front of the open shield machine 1
A process of extending the open jack 3 by extending the inside of the propulsion jack 3 by making the concrete box 4 a reaction force, and from the starting pit 1 side until the propelled jack 3 contracts in the tail portion of the open shield machine 1. The propulsion step of pushing the concrete box 4 by the propulsion jack 21 and the step of suspending the concrete box 4 in the starting pit 19 are repeated as appropriate.
【0023】なお、カーブ施工の場合には、オープンシ
ールド機1内の左右の推進ジャッキ3のストロークに差
をつけ、曲げようとする側と反対側の推進ジャッキ3を
より伸長するが、この大きく伸長する推進ジャッキ3に
引きずられて反対側の推進ジャッキ3も伸びてしまう。In the case of curve construction, the strokes of the left and right propulsion jacks 3 in the open shield machine 1 are differentiated, and the propulsion jacks 3 on the side opposite to the side to be bent are further extended. The propulsion jack 3 on the opposite side is extended by being dragged by the propulsion jack 3 that extends.
【0024】そこで、引き戻し装置18の牽引ジャッキ17
でロッド16を牽引し、この推進ジャッキ3で強制的に縮
小させることでオープンシールド機1の確実な曲がりが
得られるようにする。Therefore, the towing jack 17 of the retraction device 18
By pulling the rod 16, the forcible jack 3 is used to forcibly reduce the rod 16 so that the open shield machine 1 can reliably bend.
【0025】また、縦列に地中に埋設するコンクリート
函体4の上方の埋戻しを行うが、コンクリート函体4の
上面に鉄板等のフリクションカット材を配置し、該埋戻
し土砂はそのままでコンクリート函体4のみを前進させ
る方法と、埋戻し土砂と地盤との間に縦板によるフリク
ションカット材を配置し、コンクリート函体4とともに
埋戻し土砂も移動させる方法のいずれを選択してもよ
い。Further, backfilling is performed above the concrete box 4 buried in the ground in a tandem manner. A friction cut material such as an iron plate is arranged on the upper surface of the concrete box 4, and the backfilled soil is kept as it is. Either a method of moving only the box 4 forward or a method of disposing a friction cut material by a vertical plate between the backfill soil and the ground and moving the backfill soil together with the concrete box 4 may be selected.
【0026】さらに、縦列に地中に埋設するコンクリー
ト函体4の押し出しに関しては、これが長くなる場合は
発進坑19での推進ジャッキ21のみならす、途中のコンク
リート函体4間に中押しジャッキを介在させて押し出し
個所を分散させることもできる。Further, with regard to the extrusion of the concrete boxes 4 buried in the ground in tandem, if the length is long, only the propulsion jacks 21 in the starting pit 19 are used. The extruded parts can be dispersed.
【0027】[0027]
【発明の効果】以上述べたように本発明のオープンシー
ルド機は、確実な曲がりが得られるものである。As described above, the open shield machine of the present invention can reliably bend.
【図1】本発明のオープンシールド機によるオープンシ
ールド工法の1例を示す縦断側面図である。FIG. 1 is a vertical sectional side view showing an example of an open shield method using an open shield machine of the present invention.
【図2】本発明のオープンシールド機の1実施例を示す
横断平面図である。FIG. 2 is a cross-sectional plan view showing one embodiment of the open shield machine of the present invention.
【図3】本発明のオープンシールド機の1実施例を示す
要部の拡大横断平面図である。FIG. 3 is an enlarged cross-sectional plan view of a main part showing one embodiment of the open shield machine of the present invention.
【図4】受圧部材の固定を示す横断平面図である。FIG. 4 is a cross-sectional plan view showing fixing of a pressure receiving member.
【図5】本発明のオープンシールド機の1実施例を示す
縦断側面図である。FIG. 5 is a vertical sectional side view showing one embodiment of the open shield machine of the present invention.
【図6】オープンシールド工法の掘進工程を示す縦断側
面図である。FIG. 6 is a vertical sectional side view showing a digging process of the open shield method.
【図7】オープンシールド工法のコンクリート函体設置
工程を示す縦断側面図である。FIG. 7 is a vertical sectional side view showing a concrete box installation step of the open shield method.
1…オープンシールド機 1a…側壁板 1b…可動側板 2…刃口 3…推進ジャッキ 4…コンクリート
函体 5…埋戻し 6…掘削機 7…受圧部材 8…隔壁 9…スライドジャッキ 10…受圧部材 11…緊張材 12…定着具 13…凹部 14…カラー部 15…緩衝材 16…ロッド 17…牽引ジャッキ 18…引き戻し装置 19…発進坑 20…反力壁 21…推進ジャッキDESCRIPTION OF SYMBOLS 1 ... Open shield machine 1a ... Side wall plate 1b ... Movable side plate 2 ... Blade hole 3 ... Propulsion jack 4 ... Concrete box 5 ... Backfilling 6 ... Excavator 7 ... Pressure receiving member 8 ... Partition wall 9 ... Slide jack 10 ... Pressure receiving member 11 ... Tensioning material 12 ... Fixing device 13 ... Recess 14 ... Collar 15 ... Cushioning material 16 ... Rod 17 ... Towing jack 18 ... Retraction device 19 ... Starting pit 20 ... Reaction wall 21 ... Propulsion jack
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 平4−62230(JP,A) 特開 平2−248521(JP,A) 特開 昭61−165493(JP,A) 特開 昭52−15115(JP,A) 特公 昭59−29756(JP,B2) (58)調査した分野(Int.Cl.6,DB名) E21D 9/06 331──────────────────────────────────────────────────続 き Continuation of front page (56) References JP-A-4-62230 (JP, A) JP-A-2-248521 (JP, A) JP-A-61-165493 (JP, A) JP-A-52-1982 15115 (JP, A) JP-B-59-29756 (JP, B2) (58) Field surveyed (Int. Cl. 6 , DB name) E21D 9/06 331
Claims (1)
内側に推進ジャッキを後方に向けて左右位置にそれぞれ
上下に複数並べて配設したオープンシールド機におい
て、推進ジャッキに併設するべく、オープンシールド機
のテール部側と先頭のコンクリート函体側とをロッドで
連結し、このロッドをジャッキで牽引可能とする引き戻
し装置を設けたことを特徴としたオープンシールド機。1. An open shield machine having a front surface, a rear surface, and an upper surface, wherein a plurality of propulsion jacks are arranged in the left and right positions on the inner side of a side wall plate in the left and right positions so as to be attached to the propulsion jacks. An open shield machine characterized by connecting the tail part side of the shield machine and the top concrete box side with a rod, and providing a pullback device that allows this rod to be pulled by a jack.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5323610A JP2759416B2 (en) | 1993-12-22 | 1993-12-22 | Open shield machine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5323610A JP2759416B2 (en) | 1993-12-22 | 1993-12-22 | Open shield machine |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP27592596A Division JP2759445B2 (en) | 1996-10-18 | 1996-10-18 | How to build underground structures |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH07180485A JPH07180485A (en) | 1995-07-18 |
JP2759416B2 true JP2759416B2 (en) | 1998-05-28 |
Family
ID=18156648
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5323610A Expired - Lifetime JP2759416B2 (en) | 1993-12-22 | 1993-12-22 | Open shield machine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2759416B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110905535A (en) * | 2019-12-10 | 2020-03-24 | 中铁十四局集团隧道工程有限公司 | Shield constructs hoist and mount place system |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108049882B (en) * | 2018-01-22 | 2023-06-27 | 中交第二航务工程局有限公司 | Shield split starting pushing construction method and pushing device for ultra-small starting well |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61165493A (en) * | 1985-12-28 | 1986-07-26 | 植村 厚一 | Method of propelling excavator |
JPH02248521A (en) * | 1989-03-22 | 1990-10-04 | Koichi Uemura | Open shield method |
JP2587312B2 (en) * | 1990-06-29 | 1997-03-05 | 厚一 植村 | Underground structure installation method |
-
1993
- 1993-12-22 JP JP5323610A patent/JP2759416B2/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110905535A (en) * | 2019-12-10 | 2020-03-24 | 中铁十四局集团隧道工程有限公司 | Shield constructs hoist and mount place system |
Also Published As
Publication number | Publication date |
---|---|
JPH07180485A (en) | 1995-07-18 |
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