The Charging Principle and Economic Analysis of Spiral Anchor Foundation of Transmission Line

With the popularization of mechanized construction of transmission line engineering and the improvement of environmental and water conservancy requirements, some new types of foundations begun to be popularized and applied, and have great advantages. The spiral anchor foundation has the advantages of short construction period, fast mechanized construction speed, and can zero concrete and zero earthwork construction. According to the construction process and test requirements of the spiral anchor, the principle of cost estimation for the main body construction and test the spiral anchor foundation is proposed. Take the application of spiral anchor foundation in Inner Mongolia as an example, the economic critical point of spiral anchor foundation is obtained through cost comparison with the traditional foundation type.