Ukuvikela amadwala kuyisinyathelo esidingekayo ukuze usithathe ezindaweni ezinengozi enkulu yamadwala, ukudilika kwenhlabathi, nama-avalanche.I-Rockfall inetha iwuhlobo olulodwa lokuvikela amatshe olungasetshenziswa ukubamba izingcezu ezinkulu zamatshe ekuweni emthambekeni futhi zilimaze izisebenzi noma abantu abaseduze.Futhi eqinisweni, kuwuhlobo lwe-wire mesh ene-hexagonal.