Design of rock bolted crane beam

Combining with the rock bolted crane beam in Guangzhou Pumped Storage Underground Plant, the following questions will be discussed in this articles 1. What geologic conditions are demanded when you adopt a rock bolted crane beam and how to deal with the distribution and structural arrangement of rock bolted crane beam, access tunnel and busbar gallery. 2. How to determine the calculation loads of rock bolted crane beat. Suggesting to analyse and calculate crane beam as a system of grid beats or a beam on elastic foundation. 3. How to choose the cross section of rock bolted crane beat and the distribution of anchor rods, including dip angle of rock wall and the main sizes of the beam. 4. Putting forward quanlity standards about construction of rock bolted crane beam.