Imyitozo ya mudasobwa yuzuye yamaboko atatu yakozwe nisosiyete yacu ifite ibyiza byo kugabanya ubukana bwabakozi bwabakozi, kuzamura aho bakorera, kunoza imikorere yubwubatsi, no kugabanya ubumenyi bushingiye kubakoresha. Nintambwe murwego rwo kubaka imashini ya tunnel. Irakwiriye gucukurwa no kubaka tunel na tunel kumihanda minini, gari ya moshi, kubungabunga amazi n’ahantu hubakwa amashanyarazi. Irashobora guhita yuzuza imyanya, gucukura, gutanga ibitekerezo, no guhindura imikorere yo guturika, umwobo wa bolt, hamwe no gutobora. Irashobora kandi gukoreshwa mugushiraho no kwishyiriraho ibikorwa byo murwego rwo hejuru nko gukanda, gutontoma, no gushiraho imiyoboro yumuyaga.
