Maqolada ochiq коп ishlarida buzilgan коп jinsining fizik xususiyatlarini aniqlashda uning mustahkamlik xususiyatlario'rganilgan. Tadqiqotlar asosan kon jinsi massivlarini ovoz to’lqinlarini o'tkazish orqali bo'ylama va kundalangto'lqin tezliklarining o'zgarishi orqali aniqlangan. Bo'ylama va kundalang to'lqin tezliklarining o'zgarishi orqali burgilashva potlatish ishlarining asosiy parametrlari aniqlangan.

Tayanch iboralar: kon jinsi, fizik xususiyatlar, buzilgan va buzilmagan kon jinsi, buy lama va kundalang to'lqin, burgilashportlatish parametrlari, portlatish energiyasi, portlatish orqali kon jinsini maydalash mexanizmi, tovush usuli,kon-geologik va kon-texnologik xususiyati, skvajinali zaryad, portlatish moddasi, maydalash, texnik-iqtisodiy ko'rsatkichlar,granulametrik tarkib, pog'ona.

The physical properties o f disturbed rocks are given in the article, by determining their strength properties in open pitmining. As the main research methodology, a method was adopted fo r sounding rock massifs by measuring the velocity o flongitudinal and transverse elastic waves in an array. In addition to the propagation velocity o f longitudinal and transversewaves, the parameters o f drilling and blasting operations were also recorded in the course o f investigations.

Key words: rock, physical aspects, disturbed and undisturbed rock, longitudinal and transverse waves, parameters o fdrilling and blasting operations, explosion energy, rock burst mechanism, transmission method, mining-geological andmining-technological properties, blast hole charge, explosives, crushing, technical and economic performance, coarsenesso f grading, highwall.