Kurinnoy V. Scientific bases of the rock's fracture by blasting taking into account physical processes in the explosive cavity and massif

Українська версія

Thesis for the degree of Doctor of Science (DSc)

State registration number

0511U000625

Applicant for

Specialization

  • 05.15.09 - Геотехнічна і гірнича механіка

05-07-2011

Specialized Academic Board

Д 08.080.04

National Technical University Dnipro Polytechnic

Essay

The object of research are the gas and thermodynamical processes that proceed in blasthole and physical processes that take place in rock massive. The purpose of the work is the rise of the disstrengthening action of the blast and breakage quality on the basis of the reveal the mechanism and objective laws of blasted breaking the heterogeneous structured rocks with accounting physical process that take place in blasthole and rock massive. The objective laws of the proceeding processes in blasthole and rock massive are established. The fracture mechanism is discovered and the relationship of the breaking process versus parameters of the blasthole charge is received. The methodics of the calculation blasthole charge's parameters and valuing the rational parameters of drilling and blasting with accounting the rock discontinuity and strength and also the criterion of the choice the explosive for making the optimal loading of the rock massive are developed. The adoption of the offered results of researches for secure the stability workings is carried out by using the hole charges for presplit blasting with the purpose of forming the necessary surface of workings. Economic effect from adoption of the part from working out results formed 190,2 thousand UAH on a year. Sphere of use is mining industry.

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