Maqolada grafoanalitik usul orqali kar’yer bortining sirpanish qiyalik burchagi, tirkash koeffitsienti, solishtirma vazni va kon jinslarning ichki ishqalanish burchagi, hamda kar’yerning aniqlangan qiyalik burchagiga asosan, zamonaviy kompyuter texnologiyalardan foydalanilgan holda ularning bortdagi kon massivining optimal parametrlarini aniqlash programmasi ishlab chiqilgan.

Tayanch iborlar: grafoanalitik usul, sirpanish chizig׳ining radiusi, tirkash koeffitsienti, ichki ishqalanish burchagi, qiyalik burchagi, kar’yer borti, kompyuter programmasi, o׳yiq balandligi, matematik modellashtirish, parametrlarni hisoblash.

In article by graphoanalytical method was established the slide line radius changes of the bench faces, depending on adhesion coefficient, gravity, angle of internal friction of rock massif, as well as open pit slope angle based on received dependence was worked out determination program of the stability optimal parameters of the on-board massif using upto-date computer programs.

Key words: graphoanalytical method, slide line radius, adhesion coefficient, angle of internal friction, slope angle, open pit slope, computer program, cutting depth, mathematic simulation, parameters calculation.