The invention discloses a
rockfall prevention driven flexible protective net
system designing method based on the
energy matching principle. The
rockfall prevention driven flexible protective net
system designing method comprises the steps that 1, the
energy consumption rate matching principle of components of a driven flexible protective net structure is established; 2, preliminary
model selection and arrangement are performed on the components of the driven flexible protective net structure; 3, an explicit dynamics computation model capable of considering features such as the initial perpendicularity, large sliding of a supporting
rope, large rotation of a supporting column and
large deformation of an interception net is built through a finite element computing method; 4,
impact loading is performed on the computation model, and dynamics response of the structure under the
impact effect is analyzed; 5, structural design of the driven flexible protective net is performed. According to the method, the design principle of
energy matching is adopted, both the
force balance and the
energy balance are considered, and the design is more scientific and reasonable; the component strength, stability, deformation and the like are used as design
verification control indexes, and both the component design
bearing capacity safety storage and the applicability of the protective net structural overall interception effect are considered.