Kuboola miyala ndi njira yofunikira popititsa patsogolo bata ndi chitetezo cha zinthu zapansi panthaka, monga ma tunnel, migodi, ndi mapanga. Ubwino waukulu wa kugwetsa miyala ndi kuthekera kwake kulimbikitsa mapangidwe a miyala mwa kumangirira zigawo zosasunthika kapena zosakhazikika, kuteteza kugwa ndi kuchepetsa chiopsezo cha kugwa kwa miyala. Kuphatikiza apo, miyala yamtengo wapatali imapereka njira zotsika mtengo, zogwiritsa ntchito nthawi bwino zopezera malo okumba, kuwongolera kukhulupirika kwathunthu popanda njira zomangira zambiri kapena zowononga. Amachepetsanso ndalama zokonzetsera pakapita nthawi potalikitsa moyo wa zomangamanga zapansi panthaka, zomwe zimawapangitsa kukhala chida chofunikira m'mafakitale amigodi ndi zomangamanga.