Trenching

Na trenching ewu, a pụrụ iji nkume nkwọ maka grooving. Karịsịa maka igwu ala trenchi n'okporo ụzọ ciment, ị nwere ike ịhọrọ igwe nkume okpukpu abụọ, setịpụ oghere oghere kwesịrị ekwesị, wụnye ya na olulu ahụ, chọpụta nsọtụ trenchi site na ịkpụ, wee gwupụta, nke nwere ike nweta okpukpu abụọ. pụta na ọkara mgbalị.

Yichen na-ebute ihe ọhụrụ teknụzụ na mmepe ngwaahịa mbụ, na-elekwasị anya ka esi ebuli ngwaahịa na ọnọdụ ngwa dị iche iche iji nweta nsonaazụ nrụpụta ka mma. Ụlọ ọrụ ahụ na-ebuli ma kwalite ngwaahịa dị ka ndị na-egbutu drum, augers, na nkume nkume, ma tinye akwụkwọ maka ọtụtụ patent nke mba.