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:Where is the B-B section of the tunnel invert reinforcement
Tunnel invert refers to the bottom of the tunnel (anti arch, so called inverted arch)
Q:On the measurement of total station
Steel arch support and Lifang line checking, bottom excavation and invert excavation, lining template checking and lofting, invert pavement template checking, reinforced lofting and lining ditch school inspection, line and template checking
Q:Tunnel steel arch behind the steel mesh after a layer of fine iron wire mesh what effect is there?
Function as follows:1, the construction of the shaft excavation of the power tunnel shaft structure is a permanent structure, the construction of the shaft using shotcrete + net structure steel frame + steel mesh support + waterproof film + cast-in-place reinforced concrete lining method.
Q:What is the simple calculation method of the tunnel excavation unit price
Comprehensive unit price = labor cost + material equipment fee + mechanical + management fee + profit
Q:What are the driving jobs in the tunnel
Control wire measurement in the cave 5) elevation control survey 6) through survey (7)
Q:Would you please tell me the difference between the concrete and shotcrete in the tunnel?
Jet coagulation: the construction method of spraying fine concrete with spray gun. It is often used to fill the lining of tunnel lining, wall, ceiling and other structures.
Q:When the tunnel fight, there is no provision for the number of meters hit
Fixed strip: the use of additional reinforcement fixation; special fixture fixed; the wire and the fixed template (Figure 2).
Q:What are the safety awareness of the tunnel lining formwork trolley?
Two during the 1 excavation of earthwork calculating boundary line is important??? 2 measuring points as far as the standard
Q: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!
Q:Two lining concrete pouring should adopt the combination of steel formwork system and formwork trolley two template system.
Tunnel two lining concrete pouring mould! Template trolley!

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