Maqolada karyer borti chegarasida muayyan kon-geologik sharoitlar uchunpag’ona balandligini hisoblash melodikasi asoslangan. Jshchi pag 'onani optimal balandligini tanlash uchun kriteriy sifatida texnologik jarayomdagi, burg ’ulash, ekskaxator, Transport, portlatish ishlari va negabaritlarni takroriy yanchish ishlariga bo'lgan xarajatlarni minimallashtirish, kriteriy sifatida tanlash maqsadga muvofiq.Taqdim etilgan metodika foydali qazilmani yalpi qazib olishda ishchi pag'onani optimal balandligini loyihalashtirish bosqichida hisoblashga imkon beradi.

Tayanch ihoralar:pog'ona, bort chegarasi. kon-geologik sharoit, ekspluatatsion xarajatlar, texnologik jarayonlar, negabarit, ikkilamchi maydalash, yalpi qazib olish.

In article validated procedure o f calculation o f anting depth in a limit contour o f open pit side for specific minmg-cn idgeological conditions. As criterion for the choice o f optimum height ofa working ledge it is expedient to accept a minimum o f operational costs o f technological processes, on chilling, excavator, transport, explosive operations and works on secondary crushing o fboulder. Developed the methodology' allows to count on design stages the optiman height of working ledges at gross dredging of mineral.

Key words: ledge, contour bort, mining and geological conditions, operational costs, technological processes, boulder, secondary crushing, gross dredging.