Hydraulic and Hydroelectric Tunnel

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Hydraulic and hydroelectric tunnel mainly consists of inlet, holey and export section. Free-flow tunnel multi-purpose rounded. Import and export of line selection and layout, hole hole shape and size of the body section, topography, geology, ground stress, general layout, using requirements and restricted by factors such as construction condition, it needed to determined after technical and economic comparison .


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Q: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 time
Q:What is the specific structure of the tunnel model
In the use of the whole tunnel mode is not as flexible as semi tunnel mode, the lifting equipment requirements are higher, it is gradually being semi tunnelMode substitution.
Q:What is the vault vault seal and seal
The hole in the template above people standing on the head of I welded pipe, connected with concrete pump.
Q:How to remove the template of the two lining trolley moving outside the tunnel
The template is removed, the car generally has a fixed track, easy to move. What do not understand, you can secretly I hope to help you!
Q:What is the role of the grid steel frame and steel mesh in the power tunnel
Advanced small pipe grouting small catheter with a diameter of 32-50mm steel pipe, the pipe tip 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.
Q:What are the safety awareness of the tunnel lining formwork trolley?
Second, check the obstacles before starting, the process of attention to observe at any timeWire, wind
Q:Where is the B-B section of the tunnel invert reinforcement
Tunnel arch wall refers to both sides of the tunnel wall and the top of the arch, the tunnel arch wall is generally the use of a template trolley.
Q:The arch and the arch of the tunnel
Tunnel arch wall refers to both sides of the tunnel wall and the top of the arch, the tunnel arch wall is generally the use of a template trolley.
Q:On the interpretation of the specialized words in tunnel
Bias: refers to the formation of the tunnel, resulting in uneven pressure. To provide you with a few books you go to see the explanation. The site is easy to understand.
Q:How many meters can be poured in the first floor of the 2 level of the surrounding rock of the railway tunnel?
This time you need to see the construction unit of customized templates or make a template for a few meters, such as the 6 template pouring 6 meters, 12 meters is 12 meters, but not more than 12 meters or less than 6 meters, the pouring of inverted arch lining 2, or a concrete filling or the floor, according to your concrete filling or bottom layer below is conducted when a one-time pouring process is only a few meters a few meters. You can take a look at TZ204-2008 "railway tunnel construction technical guide" fifth "construction method" learning

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