JPS61200300A - Construction of tunnel - Google Patents
Construction of tunnelInfo
- Publication number
- JPS61200300A JPS61200300A JP60041293A JP4129385A JPS61200300A JP S61200300 A JPS61200300 A JP S61200300A JP 60041293 A JP60041293 A JP 60041293A JP 4129385 A JP4129385 A JP 4129385A JP S61200300 A JPS61200300 A JP S61200300A
- Authority
- JP
- Japan
- Prior art keywords
- tunnel
- construction
- lining
- concrete
- primary
- 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
- 238000010276 construction Methods 0.000 title claims description 7
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 12
- 239000004917 carbon fiber Substances 0.000 claims description 12
- 230000005611 electricity Effects 0.000 claims 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 6
- 230000008014 freezing Effects 0.000 description 3
- 238000007710 freezing Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 206010040844 Skin exfoliation Diseases 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Lining And Supports For Tunnels (AREA)
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】
(産業上の利用分野)
この発明はトンネルの構築法に関し、より詳しくは炭素
繊維を用いて、トンネルのコンクリート部分の補強を行
なうとともに、2次覆工のコンクリート部分にクラック
が発生し、この部分に雨水等が浸入して凍結、つららが
生じそうな場合は、凍結する期間だけ通電会発熱させて
、凍結によるクラックの増大やつららの発生を防止する
h法に関するものである。[Detailed Description of the Invention] (Industrial Application Field) This invention relates to a method for constructing a tunnel, and more specifically, it uses carbon fiber to reinforce the concrete part of the tunnel, and also to strengthen the concrete part of the secondary lining. If a crack occurs and rainwater, etc. infiltrates into this area and is likely to cause freezing and icicles, the electric current will be heated only during the freezing period to prevent cracks from increasing and icicles to occur due to freezing. It is.
(従来の技術と問題点) トンネルの構築法について而単に説明する。(Conventional technology and problems) We will briefly explain how to construct a tunnel.
トンネルをm築する場合の施工順序は、大別して他山の
掘削、1次覆工および2次覆工の3作業からなっている
。The construction order when building a tunnel can be roughly divided into three steps: excavation of another mountain, primary lining, and secondary lining.
一般に、2次覆工の現場打ちコンクリートは、無筋コン
クリートで施工する場合が多い。その為、施工後の年月
の経過と共に2次覆工面にクラックが発生したり、剥落
の危険のある箇所が生じてくる。Generally, cast-in-place concrete for secondary lining is often constructed using unreinforced concrete. As a result, as years pass after construction, cracks occur on the secondary lining surface, and areas where there is a risk of peeling appear.
2次覆工面にクラックが生じると、トンネルとしての安
定性が損なわれるとともに、コノクリートの?り落の危
険性の他にも、水みちができこのクラック面より漏水し
、冬季で特に寒冷地では、詐クラックに雨水等の浸入で
凍結してクラックを増大させたり、つららとなり交通に
支片をきたす等の問題があった。If cracks occur on the secondary lining surface, the stability of the tunnel will be impaired, and the conocrete will become unstable. In addition to the risk of falling, water leaks from the crack surface, and in winter, especially in cold regions, rainwater can enter the crack and freeze, increasing the crack or forming icicles that impede traffic. There were problems such as breakage.
(発明の目的)
この発明は、上述した従来の問題点に鑑みてなされたも
ので、トンネルのコンクリート部分の補強を行なうとと
もに、トンネルの維持管理を簡単に行なえる方法を提供
するものである。(Object of the Invention) The present invention has been made in view of the above-mentioned conventional problems, and provides a method for reinforcing the concrete portion of a tunnel and easily maintaining and managing the tunnel.
(発明の構成)
上記の目的を達成するために、この発明は「トノネル工
事で1次I工完了後、該1次覆工面に接するかまたは一
定間隔を置いて、通電可能にしたメツシュ状等の炭素繊
維を取付け、該炭素a維を覆うように2次覆工を行なう
こと」を特徴色するイ)のである。この発明で使用する
炭素繊維とは、炭素繊維自体をポリエステル等で被覆し
たもの、または何も破口しない炭素繊維をいう。(Structure of the Invention) In order to achieve the above object, the present invention is based on the following technology: ``After the completion of the primary I work in tunnel construction, a mesh-shaped etc. A) is characterized by the step of attaching carbon fibers and applying a secondary lining to cover the carbon fibers. The carbon fiber used in this invention refers to carbon fiber itself coated with polyester or the like, or carbon fiber without any holes.
(実施例) この発明の好適な実施例の施工を図面に従い説明する。(Example) Construction of a preferred embodiment of this invention will be explained with reference to the drawings.
。
トンネル101次覆工2のコンクリートが硬化する前に
、炭素繊維3を固定する留め金具を埋込んでおく(図示
せず)。1次覆工のコンクリートが硬化してから、メツ
シュ状等の炭素繊維3を直接1次覆工2面に接するか、
1次覆工2面に凹凸がある場合はそれを加味して間隔を
とりながら、略楕円形状態になるように前記金具を用い
て取付番ノ、該炭素繊維3を覆うように2次覆工4のコ
ンクリートの吹付けを行い作業は完了する。炭素繊維3
には導電性があるため、トンネル内の照明配線等を11
1用して必要に応じ通電・発熱ができるようになる。. Before the concrete of the primary lining 2 of the tunnel 10 hardens, fasteners for fixing the carbon fibers 3 are embedded (not shown). After the concrete of the primary lining hardens, carbon fibers 3 such as a mesh are directly contacted with the 2 sides of the primary lining, or
If there are irregularities on the two surfaces of the primary lining, take this into consideration and take the spacing into account, and use the metal fittings mentioned above to form a substantially elliptical shape. The work was completed by spraying the concrete of Step 4. carbon fiber 3
Because it is conductive, the lighting wiring inside the tunnel should be
1 can be used to energize and generate heat as needed.
(発明の効果)
この発明は、以上実施例で説明したように、1次M工と
2次覆工が炭素繊維で補強されるとともに、万−幼木が
生じた場合でも、つららの発生防止、クラックの増大防
止ができる等の利点を任するものである。(Effects of the Invention) As explained in the embodiments above, this invention has the primary M-work and the secondary lining reinforced with carbon fiber, and also prevents the generation of icicles even when young trees occur. , it offers advantages such as being able to prevent the increase of cracks.
第1図はこの発明によるトンネルの断面図である。 FIG. 1 is a sectional view of a tunnel according to the invention.
Claims (1)
かまたは一定間隔を置いて、通電可能にしたメッシュ状
等の炭素繊維を取付け、該炭素繊維を覆うように2次覆
工を行なうことを特徴とするトンネルの構築法。After the primary lining is completed in tunnel construction, mesh-shaped carbon fibers that can conduct electricity are installed in contact with the primary lining surface or at regular intervals, and a secondary lining is applied to cover the carbon fibers. A tunnel construction method characterized by:
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP60041293A JPS61200300A (en) | 1985-03-04 | 1985-03-04 | Construction of tunnel |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP60041293A JPS61200300A (en) | 1985-03-04 | 1985-03-04 | Construction of tunnel |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS61200300A true JPS61200300A (en) | 1986-09-04 |
Family
ID=12604402
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP60041293A Pending JPS61200300A (en) | 1985-03-04 | 1985-03-04 | Construction of tunnel |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS61200300A (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5941279U (en) * | 1982-09-07 | 1984-03-16 | 高橋 清 | Scaffolding equipment in mobile tank storage |
JPS60144497A (en) * | 1983-12-29 | 1985-07-30 | 末松 大吉 | Reinforcement construction method of mortar layer of tunnel inner wall |
-
1985
- 1985-03-04 JP JP60041293A patent/JPS61200300A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5941279U (en) * | 1982-09-07 | 1984-03-16 | 高橋 清 | Scaffolding equipment in mobile tank storage |
JPS60144497A (en) * | 1983-12-29 | 1985-07-30 | 末松 大吉 | Reinforcement construction method of mortar layer of tunnel inner wall |
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