JPS63112599U

JPS63112599U -

Info

Publication number: JPS63112599U
Application number: JP184887U
Authority: JP
Priority date: 1987-01-09
Filing date: 1987-01-09
Publication date: 1988-07-20

Description

[Brief explanation of the drawing]

第１図は本考案の天端壁形成用型枠の一実施例
を示す概略説明図、第２図は同型枠の使用状態を
示すものであり、同図イは第５図のＡ方向からの
矢視図、同図ロは第５図のＢ方向からの矢視図、
第３図は従来の天端壁形成用型枠の一例を示す説
明図、第４図は側面コンクリート壁の形成説明図
、第５図は第３図の天端壁形成用型枠の使用説明
図、第６図は同型枠の使用状態を示すものであり
、同図イは第５図の矢視Ａ図、同図ロは第５図の
矢視Ｂ図である。１はトンネル、２は天端部、３は型枠本体、４
は移動溝、５はベルト、６は充填口、１１は地山
面。 Fig. 1 is a schematic explanatory diagram showing one embodiment of the formwork for forming the top wall of the present invention, and Fig. 2 shows the state in which the formwork is used. , B is a view from direction B in Figure 5,
Figure 3 is an explanatory diagram showing an example of a conventional formwork for forming a top wall, Figure 4 is an explanatory diagram for forming a side concrete wall, and Figure 5 is an explanation of how to use the formwork for forming a crown wall in Figure 3. Figures 6 and 6 show the state of use of the same formwork, where A is a view taken in the direction of arrow A in Fig. 5, and b is a view taken in the direction of arrow B in Fig. 5. 1 is the tunnel, 2 is the top end, 3 is the formwork body, 4
1 is a moving groove, 5 is a belt, 6 is a filling port, and 11 is a ground surface.

Claims

[Scope of utility model registration request]

A moving groove 4 is formed in the concrete pouring direction of the formwork body 3 installed under the top end 2 of the tunnel 1,
A mold for forming the top end wall of a tunnel, characterized in that a belt 5 is provided below the moving groove 4 so as to be able to run, and the moving groove 4 is covered, and a concrete filling port 6 is provided projecting above the belt 5. frame.