Chitsulo chokwanira chodzibowolera mwala bolt / nangula bar / ndodo za nangula.

Dongosolo la Self Drilling Anchor limapangidwa ndi nangula wa ulusi wopanda dzenje wokhala ndi kabowo kakang'ono kamene kamabowola, kuzika ndi kukumba pa ntchito imodzi.Dongosolo lodzibowola lodzibowoleza limagwiritsidwa ntchito makamaka pakukhazikika kotsetsereka, kuwongolera chisanadze, maziko okhala ndi milu yaying'ono etc.

Ubwino ndi Makhalidwe monga pansipa:

1. Palibe mabokosi ofunikira, chifukwa timipiringidzo ta nangula titha kubowoleredwa mu dothi lotayirira popanda kufunikira maenje othandizira pobowola.

2. Kubowola mwachangu ndi kukhazikitsa, chifukwa kubowola, kukhazikitsa ndi grouting ndi ntchito imodzi.

3. Ulusi wa zingwe zonse ndi ulusi wa trapezoid ndi wolimba komanso wabwino pobowola rotary-percussive ndikuonetsetsa kuti pali mgwirizano wapamwamba ndi gout borehole.

4. Pakatikati pa dzenje simangogwira ntchito pobowola pobowola, komanso pobowola pambuyo pobowola.

5. Ulusi wopitilira umatsimikizira kuti mipiringidzo imatha kudulidwa ndikuphatikizidwa nthawi iliyonse, kapena kukulitsidwa.

6. Mitundu yosiyanasiyana ya nangula ilipo pazikhalidwe zosiyanasiyana zapansi.

R ulusi nangula kapamwamba kapena wotchedwa thanthwe bawuti, nthaka msomali, amene ndi mtundu wa ulusi dzenje kapamwamba, bala pamwamba ndi chingwe ulusi malinga ISO 10208 & 1720. Iwo poyamba anatulukira ndi MAI pa 1960S kuthetsa otsika liwiro yomanga pa zovuta ntchito zapansi panthaka, masiku ano;ndi yotchuka kwambiri padziko lonse lapansi.