JPH03137320A - Open shield construction method - Google Patents
Open shield construction methodInfo
- Publication number
- JPH03137320A JPH03137320A JP27327789A JP27327789A JPH03137320A JP H03137320 A JPH03137320 A JP H03137320A JP 27327789 A JP27327789 A JP 27327789A JP 27327789 A JP27327789 A JP 27327789A JP H03137320 A JPH03137320 A JP H03137320A
- Authority
- JP
- Japan
- Prior art keywords
- shield machine
- shield
- open
- construction method
- machine
- 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
- 238000010276 construction Methods 0.000 title claims description 20
- 239000000463 material Substances 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 6
- 238000009412 basement excavation Methods 0.000 claims description 5
- 239000002689 soil Substances 0.000 abstract description 2
- 239000004576 sand Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000010959 steel 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)
Abstract
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 [Field of Industrial Application] The present invention relates to an open shield construction method for constructing underground structures such as underground passages for water supply and sewage systems, public drains, telegraph and telephone lines, etc. in urban areas.
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冨む工法である
。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4図、第5図にその概略を示すと、図中1はオープン
シールド機で、これば左右の側壁板1a1bとその間を
連結する底板1cからなり、前後端面及び上面を開口し
たU型シールド機である。The outline is shown in Figs. 4 and 5. In the figure, 1 is an open shield machine, which consists of left and right side wall plates 1a1b and a bottom plate 1c connecting them, and a U-shaped shield with open front and rear end surfaces and top surface. It is a machine.
該オープンシールド機1は推進ジヤツキ2を後方に向は
上下に並べて配設する。図中3は、シールド機1内に設
けた隔壁を示す。The open shield machine 1 has propulsion jacks 2 arranged vertically in the rear direction. 3 in the figure indicates a partition wall provided within the shield machine 1.
発進坑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2
を伸長して発進坑内の反力壁に反力をとってシールド機
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1d内で縮めた推進ジヤツキ2の後方にセットする。This shield machine 1 is installed in the starting pit, and the shield machine 1
Excavate the earth and sand in front of the starting shaft from the front or top opening of the
And remove soil. And the propulsion jack 2 of the shield machine 1
The shield machine 1 is advanced by extending the reaction force on the reaction wall in the starting shaft, and the first underground structure 4 made of a concrete box or the like is suspended from above, and the tail part of the shield machine 1 is moved forward. Set it behind the propulsion jack 2, which has been retracted within 1d.
次いで、同様にシールド機1の前面又は上面からシャヘ
ル、オーガ、パケット等の掘削手段6で土砂を掘削しか
つ排土してシールドI11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を吊り降す
。以下、同様の掘進及び地中構造物4のセット工程を繰
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 removed from the front or upper surface of the shield machine 1 using excavating means 6 such as a shahel, auger, or packet, and the shield I 11 is advanced to move the earth and sand in front of the first underground structure 4. The second underground structure 4 is then lowered. 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 shield Once Machine 1 reaches the destination shaft, it will be removed and the construction will be completed.
ところで、昼間はハス等の車の通行に路面を解放する場
合は、シールドa1の」二面に覆工板を取り付けること
になる。By the way, if the road surface is to be opened to traffic such as lotus cars during the day, lining plates will be attached to two sides of the shield a1.
このように覆工板を設置することで、作業の休止中は路
面の交通に支障を与えないですむ。By installing the lining board in this way, there is no need to disrupt road traffic while work is suspended.
第6図はこの覆工機の設置例を示すもので、地表近くで
シールド機1の外側脇にH型鋼材などによる桁7を配設
し、この桁7で覆工板8を支承するようにしている。Figure 6 shows an installation example of this lining machine, in which a girder 7 made of H-shaped steel or the like is installed near the ground surface on the outside of the shield machine 1, and the girder 7 supports the lining plate 8. I have to.
また、シールド機1の巾が大きく、覆工板8を複数なら
べて支承する場合は、シールド機1の内部に支柱9aと
桁9bによる支保枠9を組み、この桁9bと桁7とで一
枚の覆工板8を支えるようにする。In addition, when the width of the shielding machine 1 is large and a plurality of lining plates 8 are to be supported side by side, a supporting frame 9 consisting of columns 9a and girders 9b is assembled inside the shielding machine 1, and these girders 9b and girders 7 are aligned. It is designed to support two lining boards 8.
前記第6図に示す覆工板の設置方法では、桁7は溝状に
掘削して埋設しなければならず、適正レヘルに設置する
のが面倒であり、さらにシールドja1の移動とともに
この桁7も盛替えなければならず、また覆工板が用済で
撤去したあとでは桁7があった場所の埋め戻しも必要と
なる。In the method of installing the lining plate shown in FIG. 6, the girder 7 must be dug and buried in a groove shape, and it is troublesome to install it at an appropriate level. It will also be necessary to refill the area where girder 7 was once the lining board has been used and removed.
とくに、覆工板8を複数ならべて支承する場合は支保枠
9を組む手間もある。In particular, when supporting a plurality of lining plates 8 side by side, it is necessary to assemble the supporting frame 9.
本発明の目的は前記従来例の不都合を解消し、面倒な手
間なしに簡単に覆工板の設置ができるオープンシールド
工法を提供することにある。SUMMARY OF THE INVENTION An object of the present invention is to provide an open shield construction method that eliminates the disadvantages of the conventional example and allows a lining board to be installed easily without any troublesome effort.
〔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、前後端及び上面を開
口したシールド機内に推進ジヤツキを設け、シールド機
前面又は前部上面から掘削し、後続する函体等の既設地
中構造物を反力に推進ジヤツキでシールド機を前進させ
、この前逓分にシールド機テール部上面より新たな地中
構造物を吊り降して既設地中構造物の最前列に位置させ
、以下同様な工程を繰返しでシールド機を掘進させるオ
ープンシールド工法において、シールド機は左右側壁上
部を外側に直角に張出させて水平な棚部を左右に形成し
、この棚部に長手方向に桁材をジヤツキを介在させてレ
ベル調整可能に配設し、該桁材でシールド機上面開口を
閉塞する覆工機を支承すること、及びシールド機は左右
側壁」二部を外側に直角に張出させて水平な棚部を左右
に形成し、この棚部間でシールド機の中方向に梁材を掛
渡し、梁材上に適宜間隔でジヤツキを配設し、梁材と直
交する方向の桁材をこのジヤツキでレベル調整可能に支
承し、該桁材でシールド機上面開口を閉塞する覆工板を
支承することを要旨とするものである。[Means for Solving the Problem] In order to achieve the above-mentioned object, the present invention provides a propulsion jack in a shield machine with openings at the front and rear ends and the top surface, excavates from the front surface or the top surface of the front part of the shield machine, and excavates the following case etc. The shield machine is advanced by the propulsion jack using the reaction force of the existing underground structure, and a new underground structure is lowered from the upper surface of the tail part of the shield machine in the front part, and placed in the front row of the existing underground structure. In the open shield construction method, in which the shield machine excavates by repeating the same process, the shield machine extends the upper parts of the left and right side walls at right angles to the outside to form horizontal shelves on the left and right, and the shield machine The girder material is arranged in the direction so that the level can be adjusted with a jack, and the girder material supports a lining machine that closes the top opening of the shield machine, and the shield machine has two parts of the left and right side walls at right angles to the outside. Horizontal shelves are formed on the left and right sides, and beams are hung between these shelves in the middle of the shield machine. Jacks are placed on the beams at appropriate intervals, and the jacks are placed perpendicular to the beams. The girder material in the direction is supported by this jack so that its level can be adjusted, and the girder material supports a lining plate that closes the opening on the top surface of the shield machine.
本発明によれば、覆工板はシールド機内部ですべて支承
でき、しかもシールド′機の機体を利用して支承するの
で、支保枠等の組立も不要となる。According to the present invention, the lining plate can be entirely supported inside the shielding machine, and moreover, it is supported using the body of the shielding machine, so there is no need to assemble a support frame or the like.
また、シールド−機は掘進する際に傾くことも多いが、
ジヤツキで桁材のレベルを水平に調整することで、常に
覆工板を水平に保持できる。Also, shield machines often tilt when digging,
By adjusting the level of the girders horizontally with jacks, the lining board can always be held horizontally.
(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。(Example〕 Embodiments of the present invention will be described in detail below with reference to the drawings.
先に本発明のオーブンシールド工法で使用するオーブン
シールド機1について述べると、第3図にも示すように
、左右の側壁板1a、Ibについては上部を直角に折り
曲げ、この折り曲げ部分を外側に直角に張出させて水平
な棚部10を左右に形成した。First, the oven shield machine 1 used in the oven shield construction method of the present invention will be described. As shown in FIG. Horizontal shelf portions 10 were formed on the left and right sides by overhanging them.
その他の構成は前記従来例と同一であり、左右の側壁板
1a、Ibの前部に刃口を形成し、下端は底板1cで連
結する前後端面及び上面を開口したU型シールド機であ
る。The other configuration is the same as that of the conventional example, and it is a U-shaped shield machine in which blade openings are formed in the front parts of the left and right side wall plates 1a and Ib, and the lower end is opened at the front and rear end faces and the upper face, which are connected by the bottom plate 1c.
該オーブンシールド機1ば推進ジヤツキ(図示せず)を
左右の側壁板1a、Ibの内側で後方に向は上下に並べ
て配設する。図中3は、シールド機1内に設りた隔壁で
ある。In the oven shield machine 1, propulsion jacks (not shown) are disposed rearwardly and vertically arranged inside the left and right side wall plates 1a and Ib. 3 in the figure is a partition wall installed inside the shield machine 1.
次に、前記オーブンシールド機1を用いた本発明のオー
プンシールド工法について説明する。Next, the open shield construction method of the present invention using the oven shield machine 1 will be explained.
第1図は本発明の第1実施例を示すもので、通常の作業
時では、前記第4図、第5図に示した従来例と同じであ
り、発進坑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の前方の土砂を掘削
し、かつ排上する。FIG. 1 shows a first embodiment of the present invention. During normal work, it is the same as the conventional example shown in FIGS. 4 and 5, and this shield machine 1 is installed in the starting shaft. Then, earth and sand in front of the starting shaft is excavated and discharged from the front or top opening of the shield machine 1.
そして、シールド機1の推進ジヤツキ2を伸長して発進
坑内の反力壁に反力をとってシールド機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1機1のテール部Id内で縮め
た推進ジヤツキ2の後方にセットする。Then, the propulsion jack 2 of the shield machine 1 is extended, and the reaction force is taken by the reaction wall in the launch shaft to advance the shield machine 1.
A first underground structure 4 made of a concrete box or the like is suspended from above and set behind the propulsion jack 2 which is retracted within the tail portion Id of the seal 1 machine 1.
次いで、同様にシールド機1の前面又は上面からシャヘ
ル、オーガ、バケット笠の掘削手段6で土砂を掘削しか
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を吊り障す。Next, earth and sand are similarly excavated from the front or upper surface of the shield machine 1 using the excavating means 6 such as a shahel, an auger, and a bucket shade, and the earth is discharged, and the shield machine 1 is advanced, and the first underground structure 4 is excavated. The second underground structure 4 is suspended in front.
以下、同様の掘進及び地中構造物4のセット工程を繰返
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」二に埋戻し5を施し、オープンシール1
゛機1が到達坑まで達したならばこれを撤去して工事を
完了する。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 to the rear underground structures 4'', and open the underground structures 4. Seal 1
Once Machine 1 reaches the destination shaft, it will be removed and the construction work will be completed.
なお、シールド機1が掘進する際には、棚部10がある
左右の側壁板1a、lbの張出部分だけ、掘削部分が増
すが、軟弱地盤等ではこの張出部分がシールド機1の沈
下を抑制する役割もなす。In addition, when the shield machine 1 excavates, the excavation part increases only in the overhanging parts of the left and right side wall plates 1a and lb where the shelf part 10 is located, but in soft ground etc., this overhanging part will cause the shield machine 1 to sink. It also plays a role in suppressing
シールド機1の停止中に覆工板8をセットするには、シ
ールド機1の棚部10にジヤツキ11を置き、このジヤ
ツキ11でシールド)alの長手方向に置く桁材J2を
レベル調整可能に支承する。To set the lining plate 8 while the shielding machine 1 is stopped, place a jack 11 on the shelf 10 of the shielding machine 1, and use this jack 11 to adjust the level of the girder material J2 placed in the longitudinal direction of the shield) al. Support.
そして、この棚部10の左右の桁材12に覆工板8をm
渡して、該覆工板8でシールド′機1の上面開口を閉塞
するようにする。Then, lining plates 8 are attached to the left and right girders 12 of this shelf 10.
Then, the lining plate 8 closes the upper opening of the shield machine 1.
ところでシールド機1は前進の時に曲がりを生し、前後
や左右に傾くこともある。By the way, the shield machine 1 bends when moving forward, and may tilt back and forth or left and right.
そこで、ジヤツキ11を操作して桁材12のレベル調整
してこれが水平になるようにしておけば、覆工板8も地
表に合わせて水平に敷設することができる。Therefore, by operating the jack 11 to adjust the level of the girder 12 so that it is horizontal, the lining board 8 can also be laid horizontally to match the ground surface.
第2図は本発明の第2実施例を示すもので、シールド機
1は大断面の巾が大きいものであり、この上面開口を閉
塞する覆工板8も複数枚が左右に並ぶ場合である。FIG. 2 shows a second embodiment of the present invention, in which the shielding machine 1 has a large cross-sectional width, and a plurality of lining plates 8 that close the upper opening are arranged side by side. .
このような時は、棚部10間でシールド機1の中方向に
梁材13を川渡し、該梁材13上に適宜間隔でジヤツキ
11を配設する。In such a case, a beam 13 is passed between the shelves 10 toward the inside of the shield machine 1, and jacks 11 are placed on the beam 13 at appropriate intervals.
そして、梁材13と直交する方向の桁材12をこのジヤ
ツキ11でレベル調整可能に支承し、該桁材12でシー
ルド機1の上面開口を閉塞する覆工板8を支承する。A beam member 12 in a direction perpendicular to the beam member 13 is supported by the jack 11 so that its level can be adjusted, and a lining plate 8 that closes the upper opening of the shield machine 1 is supported by the beam member 12.
このようにすれば、覆工板8の巾に合わせて桁材12を
設けることができ、並列する複数の覆工板8を梁材13
上で確実に支承することができる。In this way, the girders 12 can be provided in accordance with the width of the lining board 8, and a plurality of parallel lining boards 8 can be connected to the beam members 13.
It can be supported securely on the top.
以上述べたように、本発明のオープンシールド工法は、
覆工板はシールド機内部ですべて支承でき、しかもシー
ルド機の機体を利用して支承するので支保枠等の組立も
不要となり、面倒な手間なしに簡単に覆工板の設置がで
きるものである。As mentioned above, the open shield construction method of the present invention
The lining plate can be supported entirely inside the shield machine, and since it is supported using the body of the shield machine, there is no need to assemble a support frame, etc., and the lining plate can be easily installed without any troublesome effort. .
また、シールド機も傾きに関係なく常に覆工板を水平に
保持できるものである。In addition, the shield machine can always hold the lining plate horizontally regardless of its inclination.
第1図は本発明のオープンシールド工法の第1実施例を
示す縦断正面図、第2図は同上第2実施例を示す縦断正
面図、第3図は使用するオープンシールド機の斜視図、
第4図はオープンシールド工法の概要を示す縦断側面図
、第5図は同上横断平面図、第6図は従来例を示す縦断
正面図である。
1・・・オープンシールド機
la、Ib・・・側壁板
1d・・・テール部
3・・・隔壁
5・・・埋戻し
7・・・桁材
9・・・支保枠
9b・・・桁
11・・・ジヤツキ
13・・・梁材
1c・・・底板
2・・・推進ジヤツキ
4・・・地中構造物
6・・・掘削手段
8・・・覆工板
9a・・・支柱
10・・・棚部
12・・・桁材
第2
ド
]
第3
図
第5Fig. 1 is a longitudinal sectional front view showing the first embodiment of the open shield construction method of the present invention, Fig. 2 is a longitudinal sectional front view showing the second embodiment of the same as above, and Fig. 3 is a perspective view of the open shield machine used.
FIG. 4 is a vertical side view showing an overview of the open shield construction method, FIG. 5 is a cross-sectional plan view of the same, and FIG. 6 is a vertical front view showing a conventional example. 1... Open shield machine la, Ib... Side wall plate 1d... Tail portion 3... Bulkhead 5... Backfilling 7... Girder 9... Support frame 9b... Girder 11 ... Jacket 13 ... Beam material 1c ... Bottom plate 2 ... Propulsion jack 4 ... Underground structure 6 ... Excavation means 8 ... Lining plate 9a ... Support column 10 ...・Shelf part 12... Girder material No. 2] Fig. 3 Fig. 5
Claims (2)
ャッキを設け、シールド機前面又は前部上面から掘削し
、後続する函体等の既設地中構造物を反力に推進ジャッ
キでシールド機を前進させ、この前進分にシールド機テ
ール部上面より新たな地中構造物を吊り降して既設地中
構造物の最前列に位置させ、以下同様な工程を繰返して
シールド機を掘進させるオープンシールド工法において
、シールド機は左右側壁上部を外側に直角に張出させて
水平な棚部を左右に形成し、この棚部に長手方向に桁材
をジャッキを介在させてレベル調整可能に配設し、該桁
材でシールド機上面開口を閉塞する覆工板を支承するこ
とを特徴とするオープンシールド工法。(1) A propulsion jack is installed inside the shield machine with its front and rear ends and top open, and excavation is carried out from the front or top of the front part of the shield machine. The shield machine is moved forward, and a new underground structure is suspended from the upper surface of the tail part of the shield machine and placed in the front row of the existing underground structure, and the same process is repeated thereafter to allow the shield machine to dig.Open shield In the construction method, the shield machine has the upper parts of the left and right side walls project outward at right angles to form horizontal shelves on the left and right, and girders are placed on these shelves in the longitudinal direction with jacks interposed so that the level can be adjusted. An open shield construction method characterized in that the girder material supports a lining plate that closes an opening on the top surface of the shield machine.
ャッキを設け、シールド機前面又は前部上面から掘削し
、後続する函体等の既設地中構造物を反力に推進ジャッ
キでシールド機を前進させ、この前進分にシールド機テ
ール部上面より新たな地中構造物を吊り降して既設地中
構造物の最前列に位置させ、以下同様な工程を繰返して
シールド機を掘進させるオープンシールド工法において
、シールド機は左右側壁上部を外側に直角に張出させて
水平な棚部を左右に形成し、この棚部間でシールド機の
巾方向に梁材を掛渡し、梁材上に適宜間隔でジャッキを
配設し、梁材と直交する方向の桁材をこのジャッキでレ
ベル調整可能に支承し、該桁材でシールド機上面開口を
閉塞する覆工板を支承することを特徴とするオープンシ
ールド工法。(2) Install a propulsion jack inside the shield machine with its front and rear ends and top open, excavate from the front or top of the front part of the shield machine, and use the propulsion jack to move the shield machine using the existing underground structures such as the following box as a reaction force. The shield machine is moved forward, and a new underground structure is suspended from the upper surface of the tail part of the shield machine and placed in the front row of the existing underground structure, and the same process is repeated thereafter to allow the shield machine to dig.Open shield In the construction method, the shield machine has the upper parts of the left and right side walls protruding outward at right angles to form horizontal shelves on the left and right, and the beams are strung across the width of the shield machine between these shelves, and the beams are placed on the beams as appropriate. Jacks are arranged at intervals, girder members in a direction perpendicular to the beam members are supported by the jacks in a level-adjustable manner, and the girder members support a lining plate that closes the opening on the top surface of the shield machine. Open shield construction method.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP27327789A JPH03137320A (en) | 1989-10-19 | 1989-10-19 | Open shield construction method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP27327789A JPH03137320A (en) | 1989-10-19 | 1989-10-19 | Open shield construction method |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH03137320A true JPH03137320A (en) | 1991-06-11 |
JPH054491B2 JPH054491B2 (en) | 1993-01-20 |
Family
ID=17525603
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP27327789A Granted JPH03137320A (en) | 1989-10-19 | 1989-10-19 | Open shield construction method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH03137320A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2019112800A (en) * | 2017-12-22 | 2019-07-11 | 植村 誠 | Road surface lining method for open shield construction method |
JP2020153066A (en) * | 2019-03-18 | 2020-09-24 | 植村 誠 | Open shield machine |
JP2023093826A (en) * | 2021-12-23 | 2023-07-05 | 誠 植村 | Open shield machine and open shield construction method |
-
1989
- 1989-10-19 JP JP27327789A patent/JPH03137320A/en active Granted
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2019112800A (en) * | 2017-12-22 | 2019-07-11 | 植村 誠 | Road surface lining method for open shield construction method |
JP2020153066A (en) * | 2019-03-18 | 2020-09-24 | 植村 誠 | Open shield machine |
JP2021181746A (en) * | 2019-03-18 | 2021-11-25 | 誠 植村 | Open shield machine |
JP2023093826A (en) * | 2021-12-23 | 2023-07-05 | 誠 植村 | Open shield machine and open shield construction method |
Also Published As
Publication number | Publication date |
---|---|
JPH054491B2 (en) | 1993-01-20 |
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