Chen Hongkai's invention patent

F emergency anchor bolt for dangerous rock and its manufacturing and installation method (ZL291191599.), ranking first.

F emergency passage carrying umbrella and its installation method (ZL291191326.6) in debris flow silted road section, ranking first.

F a minimally invasive landslide healing treatment method (ZL291191271.9), ranked first.

F-side landslide failure surface lock solid and its installation method (ZL29113618.X), ranked first.

the treatment method of expansive support in the local safety hidden danger area of f slope (ZL29113195.1) ranks first.

F combat readiness pontoon bridge and its erection method (ZL29113181.X) in debris flow silt buried section, ranking first.

F borehole stress sensor and its borehole stress monitoring method (ZL2911338.), ranked first.

early warning method of debris flow disaster on highway F (ZL281232972.8), ranked first.

F the early warning instrument and its early warning method (ZL28169475.) for the collapse disaster of dangerous rock mass, ranking first.

F treatment method of combined support with anchor for dangerous rock (ZL26154335.7), ranked first.

F debris flow wing pier confluence structure (ZL25157376.7), ranked first.