In the light of the characteristics of the cable construction model under complicated working conditions

it is found that there is no engineering experience to calculate the traction force of the stay tube section and the archigh drop section. This paper establishes the corresponding engineering mechanics models according to the construc-tion site environment

which determines the engineering calculation formulas by theoretical deduction and the on-site industrial test verification

thus realizing the safe

economical and efficient laying of high-voltage cables undercomplex working conditions. Finally

the 220kV East Traction Station project is taken as an example to verify theproposed construction scheme. The results show that the laying and bending tasks can be successfully completed and all the indicators are in perfect conformity with the technical specifications.