Study on Risk Analysis and Structural Safety Performance of Material Ropeway Construction of Transmission Line

Material ropeway transport runs through the whole construction process of transmission line. It is operated frequently with long working period and its structural components are easy to produce fatigue, wear, deformation and other defects. The result is to form safety risks and cause personal and property losses, which is the focus of construction safety. This paper first summarizes the common construction safety risk factors of material ropeway and analyzes the causes of the risk points. Then, safety assessment method of material ropeway of transmission line is proposed. The method considers with the coupling dynamic factor of working ropes and running car and the states of carrying rope, pulling rope, trestle, saddle, anchor underground, etc. is analysed in whole process of transportation. The safety evaluation method is suitable for different topographic conditions and structural types of material ropeway, which provides technical means for the construction check and evaluation of material ropeway.