Tunnel Formwork System
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How to arch the arch concrete pouring
- The excavation of the tunnel face, slag, to the primary support system, first hit the bolt, then use steel or steel made of steel, installation support in tunnel contour, and then sprayed concrete (poor surrounding rock hanging steel mesh, then sprayed fiber concrete).s
Tunnel steel arch behind the steel mesh after a layer of fine iron wire mesh what effect is there?
- 3, advance small catheter grouting small catheter with diameter of phi 32-50mm steel pipe, the tip of the tube and tube holes for special processing. The first row with drill drilling pipe. Row spacing is 30cm, fan shape, elevation of 5 degrees to about 8 degrees. The length is 2.25m, a single fluid grouting (cement) or double grout (cement water glass slurry). Adjust the grouting pressure according to the soil.s
How to put the concrete on the tunnel
- Pouring should be set up before the template, the concrete template will be about 50mm*50mm of the pouring bin.After the excavation of the shield, the top arch and the top arch of the casting template are separated, so you can see the situation similar to the arc.s
What are the driving jobs in the tunnel
- Outside control traverse 2) elevation control survey 3) in construction traverses
When the two lining of the tunnel is used as the lining concrete of the two, how to lay out the trolley
- The next two large positioning along the side mode, re positioning of two small side mode along the point, then turn to check the center point and elevation, if not the positioning deviation is complete, then re adjust the positioning deviation! If you have time to measure the location of the site can be set up, then you do not nail this method, the five points directly to the elevation and mileage can be controlled for a long times
I would like to ask the tunnel hydraulic trolley steel template design is the use of what software
- According to the design requirements, draw the spare parts drawings, and then workers in accordance with the production drawings!s
On the interpretation of the specialized words in tunnel
- You haven't even touched the tunnel. Simply to say that the lining is the use of concrete or reinforced concrete tunnel inside the template pouring. The author is to stabilize the stability of the rock itself, followed by the tunnel in order to facilitate the application of.s
What is the width of a ring in a tunnel
- Generally used in the tunnel as a two car lining templates
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