Picture of ore raking machine in Henan diversion tunnel

1. Excavation of 4 M 8 by 4 m diversion tunnel: 56 yuan per meter, including materials

2. The 7x7 diversion tunnel needs small excavators
small: under 15t is small, and 5 ~ 8t is the main type. Operation for municipal, trenching, construction in the plant, garden and other projects need small operation.

3. The hole is small, the structure is simple, the cycle period is short, the included angle is too small, the resection is not easy to use, the others are the same.

4. You can't answer this question. The conditions are too rough. Let me give you an estimate. The labor cost of reinforced concrete in village 2 of the small diversion tunnel is between 600 yuan and 5000 yuan

5. Things are preferences, that is, do what you want, and don't eat. It's very good.

6. The tunnel in which the water flow fills the whole section is called pressure tunnel. When the water flow in the tunnel has a free surface, it is called a non pressure tunnel. There are great differences between pressure tunnel and non pressure tunnel in engineering layout, hydraulic calculation, stress and operation conditions. For reservoirs with large drawdown depth, pressure tunnel is generally used. In the face of Low Head Intake Dam or reservoir with small drawdown depth, non pressure tunnel is generally used for water diversion. Sometimes, it can be designed with or without pressure, which needs to be determined after technical and economic comparison.

7. You said this situation in the instrial and commercial law, as long as injured at work, then he belongs to instrial injury, according to you said this situation is definitely belong to instrial injury behavior.

8. You can't answer this question. The conditions are too rough. I'll give you an estimate for reference.
the labor cost of reinforced concrete in village 2 of small diversion tunnel ranges from 600 yuan to 5000 yuan

9. The function of the diversion tunnel is actually to guide the water flow, so that the water in the upstream reservoir area reaches the penstock through the diversion tunnel, and through the turbine, the kinetic energy of the water is converted into rotational kinetic energy to drive the turbine. Then the driven water is discharged downstream through the draft tube.

10. Constructor of water conservancy and Hydropower Engineering