JPS59154299A - Method of shielding construction - Google Patents
Method of shielding constructionInfo
- Publication number
- JPS59154299A JPS59154299A JP58028947A JP2894783A JPS59154299A JP S59154299 A JPS59154299 A JP S59154299A JP 58028947 A JP58028947 A JP 58028947A JP 2894783 A JP2894783 A JP 2894783A JP S59154299 A JPS59154299 A JP S59154299A
- Authority
- JP
- Japan
- Prior art keywords
- shield
- construction
- ground
- excavator
- shield excavator
- 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
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】 本発明は７−ルドエ法の改良に関する。[Detailed description of the invention] The present invention relates to an improvement of the 7-Rudoue method.
従来のシールド工法はシールド掘削機による掘進とその
掘進後のセグメントの組立による覆工とによｐ行うこと
を一般としているが、多数のセグメント全トンネル工事
内に）旅人することとこれらセグメントの組立施工に多
大の労力を必要とする欠点があった。Conventional shield construction methods generally involve excavation using a shield excavator and lining by assembling the segments after excavation, but it is difficult to construct a tunnel by constructing a large number of segments (into the entire tunnel construction) and assembling these segments. The drawback was that construction required a great deal of labor.
本発明はセグメン）−全不必要にして」二記欠点全排除
したンールドエ法？提供することを目的とするものであ
り、その特徴とするところはシールド掘削機によシ掘削
した後のシールド掘削機周辺の地山を凍結硬化させ、こ
の凍結硬化した地山を利用してコンクリートによシ覆工
したことにある。The present invention is a segment method that completely eliminates the two drawbacks by making it unnecessary. The purpose of this system is to freeze and harden the ground around the shield excavator after excavating with the shield excavator, and use this freeze-hardened ground to form concrete. This is due to the construction of the lining.
以下本発明のシールド工法の１実施例を図面に従って説
明する。An embodiment of the shield construction method of the present invention will be described below with reference to the drawings.
（１）はシールド掘削機を示し、該シールド掘削機（１
）はそのスキンプレー） （ｌａ）の後方部の内周面に
凍結用のパイプ（２）を配設し９該パイプ（２）にパイ
プ（３ａ）より液体窒素等全供給し、パイプ（３ｂ）よ
り吸熱気化した気体窒素が排出するようにした。(1) indicates a shield excavator, and the shield excavator (1)
) is the skin play) A freezing pipe (2) is arranged on the inner peripheral surface of the rear part of (la), and all liquid nitrogen etc. are supplied to the pipe (2) from the pipe (3a), ) so that the gaseous nitrogen that was vaporized more endothermically was discharged.
かくてシールドジヤツキ（４）を作動させ９反力受スペ
ーサ（５）により調整し乍らシールド掘削機（１）を掘
進する。そしてとの掘進に伴い該掘削機（１）の後方部
の凍結用のパイプ（２）の個所において地山（Ａ）を凍
結硬化する。この凍結硬化により地山（、Ａ）が強固で
遮水性のある耐力壁となる。然る後シールドジヤツキ（
４）と共に反力受スペーサ（５）をシールド掘削機（１
）内に後退させる。これによシ−ルドジャツギ（４）の
後端と反力受体（６）の先端との間に空間が得られ、該
空間全利用して凍結硬化した地山（蜀の面上に断冷防水
材（・７）を敷設すると共にｒ（ビーム（８）ヲセット
する。然る後セントル（９）と反力受体（６）をその先
端がシールドジヤツキ（４）の後端に当る位置まで前進
させてセットしてからセントル（９）と断冷材（７）と
の間にコンクリートを打設し、養生して覆工コンクリー
ト（１０）が形収される。そして次にセントルＸ９）
ｆ覆工コンクリートリ０）にボルト等の手段により固定
し。Thus, the shield jack (4) is operated and the shield excavator (1) excavates while adjusting with the nine reaction force receiving spacers (5). As the excavator excavates, the ground (A) is frozen and hardened at the freezing pipe (2) at the rear of the excavator (1). This freeze-hardening causes the ground (A) to become a strong, water-impermeable, load-bearing wall. After that, Shield Jatsuki (
4) together with the reaction force receiving spacer (5) and the shield excavator (1).
) to retreat within. As a result, a space is obtained between the rear end of the shield jatsugi (4) and the tip of the reaction force receiver (6), and the space is fully utilized to place the freeze-hardened ground (on the surface of Shu) in an insulated manner. Lay the waterproofing material (7) and set the beam (8). Then, move the center (9) and reaction force receiver (6) to a position where their tips hit the rear end of the shield jack (4). After advancing and setting the center (X9), concrete is poured between the center (9) and the cold insulation material (7), and the lining concrete (10) is placed after curing.Then, the center (X9)
F.Fix to the concrete lining using bolts or other means.
該覆工コンクリ−） （ｌｏ）及びセントル（９）９反
力受体（６）に反力を取り乍らシールドジャツギ（４）
全作動させ反力受スベーザ（５）により調整し乍らシー
ルド機（１）全史に掘進する。以後これらの作業を順次
繰シ返してトンネル工事を進行する。The lining concrete) (lo) and the center (9) 9 while taking the reaction force to the reaction force receiver (6), the shield jack (4)
Fully operate the shield machine (1) while adjusting it with the reaction force receiving subzer (5). Thereafter, these operations will be repeated one after another to proceed with the tunnel construction.
このように本発明によるとシールド掘削機によｐ掘削後
の地山？凍結硬化させて強固で遮水性のある耐力盤全形
成してからコンクリートにより覆工するようにしたので
、セグメントが不必要となり、従って従来の工法におい
て必要とし７たセグメントの搬入と組立の労力が全く不
必要となり、工期の短縮全図ることができる等の効果を
有する。In this way, according to the present invention, the ground excavation after excavation by the shield excavator? Since we freeze-hardened the solid, water-impermeable load-bearing board and then lined it with concrete, segments were no longer required, and the labor required to transport and assemble the segments, which was required in conventional construction methods, was reduced. It is completely unnecessary and has the effect of completely shortening the construction period.
図面は本発明工法の１実施例の断面図である。
（１）・・・シールド掘削機、（２）・・・凍結用パイ
プ。
（１０）・・・覆工コンクリート、（Ａ）・・・地上特
許出願人 三井建設株式会社The drawing is a sectional view of one embodiment of the construction method of the present invention. (1)...Shield excavator, (2)...Freezing pipe. (10)... Lining concrete, (A)... Ground patent applicant Mitsui Construction Co., Ltd.
Claims (1)
地山全凍結硬化させ、この凍結硬化した地山を耐力壁と
してその内側にコンクリートによシ覆工したことを特徴
とするシールド工法。A shield construction method characterized by completely freezing and hardening the ground around the shield excavator after excavating with a shield excavator, and using the freeze-hardened ground as a load-bearing wall and lining the inside with concrete.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58028947A JPS59154299A (en) | 1983-02-23 | 1983-02-23 | Method of shielding construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58028947A JPS59154299A (en) | 1983-02-23 | 1983-02-23 | Method of shielding construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59154299A true JPS59154299A (en) | 1984-09-03 |
Family
ID=12262596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58028947A Pending JPS59154299A (en) | 1983-02-23 | 1983-02-23 | Method of shielding construction |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59154299A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6332096A (en) * | 1986-07-25 | 1988-02-10 | 鉄建建設株式会社 | Coating construction method of shield tunnel |
-
1983
- 1983-02-23 JP JP58028947A patent/JPS59154299A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6332096A (en) * | 1986-07-25 | 1988-02-10 | 鉄建建設株式会社 | Coating construction method of shield tunnel |
| JPH0511199B2 (en) * | 1986-07-25 | 1993-02-12 | Tekken Constr Co |
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