Dib-u-qaabeedka loo isticmaalo aagga heerkulka sare ee tunnel-ka ah waa inuu ahaadaa mid la jaan qaada astaamaha heerkulka kildan iyo qalliinka ee '}' Cloumia-alumina 'ee 1500 c, iyo lebenkus-ka ee loo yaqaan' croundim lebrum 'ah oo ka hooseeya 1800 c {{}
Astaamaha loo yaqaan 'alumitistics of alumini sare loo adeegsaday tunnel-ka aagga heerkulka sare ee Kinn waa sida soo socota:
{{0}1.} xasillooni yar oo heerkul ah;
2.2.} resictory sare iyo heerkulka cufan;
3.} waxaa loo qaybin karaa heerka, guud, leben-qaas-qaade oo qaas ah oo qaabeeya .
Xaaladaha shaqada ee dahaarka keynn-ka ah waa hawlgal joogto ah oo muddo dheer ah {{1} si loo hubiyo heerkulka caadiga ah iyo nidaamka cadaadiska ee loogu tala galay aaladda dahaarka ah ee xarkaha aagga shaashadda ah ee tunneenka ah waa sida soo socota:
(1) iska caabbinta wanaagsan ee nabaad-guurka gaaska .
(2) Waxay leedahay xoog sare oo heerkul sare ah iyo iska caabbinta naxdinta leh ee naxdinta leh .
(3) deganaansho mugga wanaagsan ee heerkulka sare {{1} dahabka reslate of kiln waa in laga cayriyaa si ka hooseysa heerkulka shaqada ee buugga {{2} ee levern versat-ka waa in aan la soo kicin ama soo bandhigi karin qadar yar oo ballaarinta ah ka dib kuleylka .
