JPH0574677B2 - - Google Patents
Info
- Publication number
- JPH0574677B2 JPH0574677B2 JP1070148A JP7014889A JPH0574677B2 JP H0574677 B2 JPH0574677 B2 JP H0574677B2 JP 1070148 A JP1070148 A JP 1070148A JP 7014889 A JP7014889 A JP 7014889A JP H0574677 B2 JPH0574677 B2 JP H0574677B2
- Authority
- JP
- Japan
- Prior art keywords
- shield machine
- open shield
- open
- backfill
- bottom plate
- 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
- 238000010276 construction Methods 0.000 claims description 21
- 238000000034 method Methods 0.000 claims description 12
- 229910000831 Steel Inorganic materials 0.000 claims description 8
- 239000010959 steel Substances 0.000 claims description 8
- 239000004576 sand Substances 0.000 claims description 6
- 230000000694 effects Effects 0.000 description 2
- 101150054854 POU1F1 gene Proteins 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、市街地に上下水道、共同溝、電信、
電話等の布設地下道等の地下構造物を施工するオ
ープンシールド工法に関する。[Detailed Description of the Invention] [Industrial Field of Application] The present invention is applicable to urban areas for water supply and sewage, public drainage, telegraph,
Concerning the open shield construction method for constructing underground structures such as underground passages for laying telephones, etc.
オープンシールド工法は、開削工法(オープン
工法)とシールド工法の長所を生かした合理性に
富む工法である。
The open shield construction method is a highly rational construction method that takes advantage of the advantages of the cut-and-cover construction method (open construction method) and the shield construction method.
第6図にその概略を示すと、図中1はオープン
シールド機で、これは左右の側壁板1aとその間
を連結する底板1bとからなる前面、後面及び上
面を開口したU型シールド機である。該オープン
シールド機1は前記側壁1aと底板1bの先端を
断面三角匣状の刃口として形成し、また側壁板1
aの中央又は後端近くに推進ジヤツキ3を後方に
向け上下に並べて配設する。 The outline is shown in Fig. 6. In the figure, 1 is an open shield machine, which is a U-shaped shield machine with openings on the front, rear, and top surfaces, consisting of left and right side wall plates 1a and a bottom plate 1b connecting them. . The open shield machine 1 has the tips of the side wall 1a and the bottom plate 1b formed as a cutting edge having a triangular box shape in cross section, and the side wall plate 1.
Propulsion jacks 3 are arranged vertically and facing rearward at the center or near the rear end of a.
図中7は、推進ジヤツキ3の後端に設けた受圧
部材で、ボツクス鋼材又は型鋼を用いた。 7 in the figure is a pressure receiving member provided at the rear end of the propulsion jack 3, which is made of box steel or shaped steel.
発進坑6内にこのシールド機1を設置して、シ
ールド機1の前面又は上面開口より発進坑6の前
方の土砂を掘削し、かつ排土する。そして、シー
ルド機1の推進ジヤツキ3を伸長して発進坑6内
の反力壁に反力をとつてシールド機1を前進さ
せ、コンクリート函体等による第1番目の地中構
造物4を上方から吊り降し、シールド機1のテー
ル部1c内で縮めた推進ジヤツキ3の後方にセツ
トする。 This shield machine 1 is installed in the starting shaft 6, and earth and sand in front of the starting shaft 6 is excavated and discharged from the front or top opening of the shield machine 1. Then, the propulsion jack 3 of the shield machine 1 is extended to apply a reaction force to the reaction wall in the launch shaft 6 to move the shield machine 1 forward, moving the first underground structure 4 made of a concrete box or the like upward. It is suspended from the shield machine 1 and set behind the propulsion jack 3 which is retracted within the tail portion 1c of the shield machine 1.
次いで、同様にシールド機1の前面又は上面か
ら土砂を掘削しかつ排土してシールド機1を前進
させ、前記第1番目の地中構造物4の前に第2番
目の地中構造物4をシールド機1のテール部1c
内に吊り降す。以下、同様の掘進及び地中構造物
4のセツト工程を繰返して、順次地中構造物4を
縦列に地中に埋設し、後方の地中構造物4上に埋
戻し5を施し、オープンシールド機1が到達坑1
1まで達したならばこれを撤去して工事を完了す
る。 Next, earth and sand are similarly excavated and discharged from the front or upper surface of the shield machine 1, and the shield machine 1 is moved forward, and a second underground structure 4 is placed in front of the first underground structure 4. The tail part 1c of the shield machine 1
hang it inside. Thereafter, the same excavation and setting process of the underground structures 4 is repeated to sequentially bury the underground structures 4 in the ground in columns, backfill 5 is applied on the rear underground structures 4, and open shielding is performed. Machine 1 reached Pit 1
Once it reaches 1, remove it and complete the construction.
前記のごとき従来のオープンシールド工法で
は、到達坑11をシールド機1の回収のために必
要とした。
In the conventional open shield construction method as described above, the reaching hole 11 is required for recovering the shield machine 1.
しかし、縦坑による到達坑11はこれを施工す
るのに、土留め用の杭を打設するなどわりと大掛
かりな工事となる。また、地盤が軟弱な場合など
で、杭が打てないこともあり、その場合はさらに
地盤改良などの付帯工事も必要となり、一層面倒
なものとなる。 However, constructing the reaching shaft 11 using a vertical shaft requires relatively large-scale construction work, such as driving piles for retaining the earth. In addition, in some cases, such as when the ground is soft, it may not be possible to drive piles, in which case additional work such as ground improvement will be required, making it even more troublesome.
本発明の目的は前記従来例の不都合を解消し、
到達坑なしにオープンシールド機を地上に回収で
き、工程や工費の削減及び工期の短縮を図ること
ができるオープンシールド工法を提供することに
ある。 The purpose of the present invention is to eliminate the disadvantages of the conventional example,
An object of the present invention is to provide an open shield construction method that allows an open shield machine to be recovered to the ground without a reaching hole, and that can reduce the process and construction costs and shorten the construction period.
本発明は前記目的を達成するため、左右の側壁
板とその間を連結する梁部材及び底板とからなる
前面、後面及び上面を開口したU型シールド機で
あるオープンシールド機を設置して、オープンシ
ールド機の前面又は上面から土砂を掘削しかつ排
土してシールド機を前進させ、既設の地中構造物
の前に新たな地中構造物をシールド機のテール部
内に吊り降し、以下、同様の掘進及び地中構造物
のセツト工程を繰返して、順次地中構造物を縦列
に地中に埋設し、後方の地中構造物上に埋戻しを
施し、オープンシールド機が目的地まで達したな
らばこれを撤去して工事を完了するオープンシー
ルド工法において、オープンシールド機が目的到
達地まで達したならば、該シールド機から底板や
推進ジヤツキ及びボツクス鋼材又は型鋼を用いる
支柱状の受圧部材等を撤去して左右側壁板を梁部
材等で連結しただけの底板なしの下面開口のもの
とし、このオープンシールド機の中を順次段階的
に埋め戻しながら、埋め戻し上面とオープンシー
ルド機との間に昇降ジヤツキを介在させ、埋め戻
しの上昇とともにオープンシールド機を昇降ジヤ
ツキで地上に出るまで押し上げることを要旨とす
るものである。
In order to achieve the above object, the present invention installs an open shield machine, which is a U-shaped shield machine, which is a U-shaped shield machine with openings on the front, rear, and top surfaces, which is made up of left and right side wall plates, a beam member connecting them, and a bottom plate. Excavate and discharge earth and sand from the front or top of the machine, move the shield machine forward, and lower the new underground structure into the tail of the shield machine in front of the existing underground structure. By repeating the process of digging and setting up the underground structures, the underground structures were buried in columns in sequence, and backfilling was performed on the underground structures in the rear, until the open shield machine reached its destination. Therefore, in the open shield construction method where this is removed and the construction is completed, once the open shield machine has reached the destination, the bottom plate, propulsion jack, and column-shaped pressure receiving member using box steel or shaped steel are removed from the shield machine. was removed and the left and right side wall plates were connected with beam members etc. to create an opening at the bottom without a bottom plate, and while backfilling the inside of this open shield machine in stages, the space between the top surface of the backfill and the open shield machine was created. The main idea is to use a lifting jack to interpose a lifting jack, and as the backfill rises, the open shield aircraft is pushed up until it reaches the ground level.
本発明によれば、オープンシールド機は目的到
達地では、昇降ジヤツキを介在させてこれを地上
まで押し上げることにより、到達坑なしに回収で
きる。
According to the present invention, at the destination, the open shield aircraft can be recovered without a landing shaft by pushing it up to the ground using a lifting jack.
以下、図面について本発明の実施例を詳細に説
明する。
Embodiments of the present invention will be described in detail below with reference to the drawings.
第1図〜第4図は本発明のオープンシールド工
法の1実施例を示すオープンシールド機回収時の
各工程の正面図である。 FIGS. 1 to 4 are front views of each process during recovery of an open shield machine, showing one embodiment of the open shield construction method of the present invention.
このような目的到達地までの工程については、
第5図に示すように、前記第6図で説明した従来
例とほぼ同じである。 Regarding the process to reach this destination,
As shown in FIG. 5, it is almost the same as the conventional example explained in FIG. 6 above.
すなわち、発進坑6内に、左右の側壁板1aと
その間を連結する梁部材8及び底板1bとからな
る前面、後面及び上面を開口したU型シールド機
であるオープンシールド機1を設置して、シール
ド機1の前面又は上面開口より発進坑6の前方の
土砂を掘削し、かつ排土する。そして、シールド
機1の推進ジヤツキ3を伸長して発進坑6内の反
力壁に反力をとつてシールド機1を前進させ、コ
ンクリート函体等による第1番目の地中構造物4
を上方から吊り降し、シールド機1のテール部1
c内で縮めた推進ジヤツキ3の後方にセツトす
る。 That is, an open shield machine 1, which is a U-shaped shield machine with open front, rear, and top surfaces, is installed in the starting shaft 6, and consists of left and right side wall plates 1a, a beam member 8 connecting them, and a bottom plate 1b. Earth and sand in front of the starting shaft 6 is excavated and discharged from the front or top opening of the shield machine 1. Then, the propulsion jack 3 of the shield machine 1 is extended to apply a reaction force to the reaction wall in the launch shaft 6 to move the shield machine 1 forward, and the first underground structure 4 made of a concrete box or the like is moved forward.
is suspended from above and attached to the tail part 1 of the shield machine 1.
Set it behind the propulsion jack 3 that has been retracted within c.
次いで、同様にシールド機1の前面又は上面か
ら土砂を掘削しかつ排土してシールド機1を前進
させ、前記第1番目の地中構造物4の前に第2番
目の地中構造物4をシールド機1のテール部1c
内に吊り降す。以下、同様の掘進及び地中構造物
4のセツト工程を繰返して、順次地中構造物4を
縦列に地中に埋設し、後方の地中構造物4上に埋
戻し5を施していく。 Next, earth and sand are similarly excavated and discharged from the front or upper surface of the shield machine 1, and the shield machine 1 is moved forward, and a second underground structure 4 is placed in front of the first underground structure 4. The tail part 1c of the shield machine 1
hang it inside. Thereafter, similar steps of digging and setting the underground structures 4 are repeated to sequentially bury the underground structures 4 in columns in the ground, and backfill 5 on the underground structures 4 at the rear.
このようにして、オープンシールド機1が目的
到達地まで達したならば、該シールド機1から底
板1bや推進ジヤツキ3及びボツクス鋼材又は型
鋼を用いる支柱状の受圧部材7等を撤去し、左右
の側壁板1a,1aを梁部材8で相互に連結した
だけの、底板なしの底面開口のものとする。 In this way, when the open shield machine 1 reaches its destination, remove the bottom plate 1b, propulsion jack 3, column-shaped pressure receiving member 7 made of box steel or shaped steel, etc. from the shield machine 1, and It is assumed that the side wall plates 1a, 1a are simply connected to each other by a beam member 8, and the bottom is open without a bottom plate.
第1図に示すように、オープンシールド機1の
左右の側壁板1a,1aの内側下部にジヤツキ受
け部9を取付け、このジヤツキ受け部9とシール
ド機1の底面の地盤上との間に昇降ジヤツキ10
を介在させ、これを伸長すれば第2図に示すよう
にそのストローク分だけオープンシールド機1は
押し上げられる。 As shown in FIG. 1, a jack receiving part 9 is attached to the lower inner side of the left and right side wall plates 1a, 1a of the open shield machine 1, and a jack receiving part 9 is installed between the jack receiving part 9 and the ground on the bottom of the shield machine 1. Jyatsuki 10
If this is extended, the open shield machine 1 will be pushed up by the stroke as shown in FIG.
次いで、昇降ジヤツキ10を縮め、このオープ
ンシールド機1を押し上げた分だけ機内を埋め戻
す。 Next, the lifting jack 10 is retracted, and the inside of the open shield machine 1 is backfilled by the amount that has been pushed up.
そして、埋め戻し12の上面とジヤツキ受け部
9との間の昇降ジヤツキ10を再度伸長し、この
ようにして順次オープンシールド機1を押し上
げ、全体を地上に出す。(第3図、第4図参照)
〔発明の効果〕
以上述べたような本発明のオープンシールド工
法は、目標到達地点で、オープンシールド機を地
中から回収するのに、到達坑を形成することなし
に安全かつ安価に行うことができ、工程や工費の
削減及び工期の短縮を図ることができるものであ
る。 Then, the elevating jack 10 between the upper surface of the backfill 12 and the jack receiving part 9 is extended again, and in this way, the open shield machine 1 is successively pushed up and the whole is brought out onto the ground. (See Figures 3 and 4) [Effects of the Invention] The open shield construction method of the present invention as described above requires the formation of a reaching hole to retrieve the open shield machine from underground at the target destination point. It can be carried out safely and inexpensively without any problems, and it is possible to reduce the process and construction costs and shorten the construction period.
第1図〜第4図は本発明のオープンシールド工
法の1実施例を示すもので、各工程の正面図、第
5図は第1図の工程の前の工程の縦断側面図、第
6図は従来例を示す縦断側面図である。
1……オープンシールド機、1a……側壁板、
1b……底板、1c……テール部、3……推進ジ
ヤツキ、4……地中構造物、5……埋戻し、6…
…発進坑、7……受圧部材、8……梁部材、9…
…ジヤツキ受け部、10……昇降ジヤツキ、11
……到達坑、12……埋め戻し。
Figures 1 to 4 show one embodiment of the open shield construction method of the present invention. Figure 5 is a front view of each process, Figure 5 is a vertical side view of the process before the process in Figure 1, and Figure 6 is a side view of the process before the process in Figure 1. FIG. 2 is a vertical side view showing a conventional example. 1...Open shield machine, 1a...Side wall plate,
1b...bottom plate, 1c...tail part, 3...propulsion jack, 4...underground structure, 5...backfilling, 6...
...Starting shaft, 7...Pressure receiving member, 8...Beam member, 9...
... Jacket receiving part, 10 ... Lifting jack, 11
...Achievement pit, 12... Backfill.
Claims (1)
底板とからなる前面、後面及び上面を開口したU
型シールド機であるオープンシールド機を設置し
て、オープンシールド機の前面又は上面から土砂
を掘削しかつ排土してシールド機を前進させ、既
設の地中構造物の前に新たな地中構造物をシール
ド機のテール部内に吊り降し、以下、同様の掘進
及び地中構造物のセツト工程を繰返して、順次地
中構造物を縦列に地中に埋設し、後方の地中構造
物上に埋戻しを施し、オープンシールド機が目的
地まで達したならばこれを撤去して工事を完了す
るオープンシールド工法において、オープンシー
ルド機が目的到達地まで達したならば、該シール
ド機から底板や推進ジヤツキ及びボツクス鋼材又
は型鋼を用いる支柱状の受圧部材を撤去して左右
側壁板を梁部材で連結しただけの底板なしの下面
開口のものとし、このオープンシールド機の中を
順次段階的に埋め戻しながら、埋め戻し上面とオ
ープンシールド機との間に昇降ジヤツキを介在さ
せ、埋め戻しの上昇とともにオープンシールド機
を昇降ジヤツキで地上に出るまで押し上げること
を特徴とするオープンシールド工法。1 A U with open front, rear and top surfaces consisting of left and right side wall plates, a beam member connecting them, and a bottom plate.
An open shield machine, which is a type shield machine, is installed, excavates and removes earth and sand from the front or top of the open shield machine, moves the shield machine forward, and constructs a new underground structure in front of the existing underground structure. The object is suspended into the tail of the shield machine, and the same process of digging and setting up the underground structures is repeated to sequentially bury the underground structures vertically into the ground, In the open shield construction method, the work is completed by backfilling and removing the backfill when the open shield machine reaches the destination.When the open shield machine reaches the destination, the bottom plate and The propulsion jack and the pillar-like pressure receiving member made of box steel or shaped steel were removed, and the left and right side wall plates were simply connected by beam members, with an opening at the bottom without a bottom plate, and the inside of this open shield machine was gradually filled in. The open shield construction method is characterized by interposing a lifting jack between the top surface of the backfill and the open shield machine while returning the backfill, and as the backfill rises, the open shield machine is pushed up until it reaches the ground level by the lifting jack.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1070148A JPH02248522A (en) | 1989-03-22 | 1989-03-22 | Open shield method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1070148A JPH02248522A (en) | 1989-03-22 | 1989-03-22 | Open shield method |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH02248522A JPH02248522A (en) | 1990-10-04 |
JPH0574677B2 true JPH0574677B2 (en) | 1993-10-18 |
Family
ID=13423198
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1070148A Granted JPH02248522A (en) | 1989-03-22 | 1989-03-22 | Open shield method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH02248522A (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103981898B (en) * | 2014-05-12 | 2016-03-16 | 铁道第三勘察设计院集团有限公司 | A kind of inverse underground engineering construction method done of overall open cut node |
JP5960786B2 (en) * | 2014-12-18 | 2016-08-02 | 植村 誠 | Shield machine collection method in open shield method |
JP5960787B2 (en) * | 2014-12-19 | 2016-08-02 | 植村 誠 | Shield machine removal method in open shield method |
JP6448425B2 (en) * | 2015-03-18 | 2019-01-09 | アイサワ工業株式会社 | Wall body manufacturing method |
CN106013240A (en) * | 2016-07-12 | 2016-10-12 | 中国电建集团昆明勘测设计研究院有限公司 | Assembled utility tunnel |
JP6276440B1 (en) * | 2017-03-03 | 2018-02-07 | 植村技研工業株式会社 | Method and apparatus for hanging concrete box in open shield method |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62133294A (en) * | 1985-12-05 | 1987-06-16 | アイサワ工業株式会社 | Method and device for lowering open shielding machine by itself |
JPS63122891A (en) * | 1986-11-07 | 1988-05-26 | 株式会社 新井組 | Open-blade excavator |
-
1989
- 1989-03-22 JP JP1070148A patent/JPH02248522A/en active Granted
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62133294A (en) * | 1985-12-05 | 1987-06-16 | アイサワ工業株式会社 | Method and device for lowering open shielding machine by itself |
JPS63122891A (en) * | 1986-11-07 | 1988-05-26 | 株式会社 新井組 | Open-blade excavator |
Also Published As
Publication number | Publication date |
---|---|
JPH02248522A (en) | 1990-10-04 |
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