Kudula Mwala wa Tunnel ndi Rock Saw

Kumanga ngalande nthawi zonse kwakhala pachimake pa ntchito yomanga, ndipo kumanga kumakhala kovuta. Kuphatikiza pa kuphulika, kumanga ngalande zamakono kwatsegula njira yatsopano yofukula. Mothandizidwa ndi zida zatsopano, ndi macheka a miyala.

Panthawi ya tunneling, nkhope zolimba kwambiri nthawi zina zimakumana. Chifukwa cha kuuma kwakukulu, kugwiritsa ntchito makina ophera sikungathenso kukwaniritsa zofunikira zogwirira ntchito, choncho macheka a miyala amasankhidwa kuti azidula. Tunnel Rock Cutting by Rock Saw ndi njira yothanirana ndi malo olimba a kanjedza. Macheka a thanthwe amapangidwa ndi miyala ya diamondi, yomwe imakhala yabwino kwambiri pamwala wolimba. Njira ndi kuya kwa macheka ziyenera kufufuzidwa molingana ndi mikhalidwe yeniyeni ya thanthwe kuti mudziwe ndondomeko yomanga.

Njira yeniyeni yomangira ndiyo kugwiritsa ntchito macheka a miyala kuti adule ma slits awiri pamtunda wa 5 cm pa nkhope ya nkhope, kuya kwake ndi pafupifupi 50-100 cm, ndipo pakati ndi wosweka. Mizere iwiri ya mabowo anabowoledwa kuti aphwanye ma hydraulic. Mwa njira iyi, imapitirirabe, kudula ndi kuphwanya mosalekeza, ndipo imatha kufika kuya kwa mamita 4-5 patsiku. Zotsatira zake ndi zodabwitsa, zomwe zimathandizira kwambiri pakufukula kwa ngalandeyo.