Boyko V. Working out of a way of forecasting of seismic effect of a millisecond-delay blasting, taking into account superposition of waves in hills

Українська версія

Thesis for the degree of Candidate of Sciences (CSc)

State registration number

0410U002279

Applicant for

Specialization

  • 05.15.09 - Геотехнічна і гірнича механіка

14-05-2010

Specialized Academic Board

Д 26.002.22

Publishing and Printing Institute of Igor Sikorsky Kyiv Polytechnic Institute

Essay

The dissertation is devoted analysis of elastic wave processes and their interactions during explosions of blasthole charges of explosive substance for improvement of a technique of an estimation of seismic safety at carrying out millisecond-delay blasting on opencasts taking into account total mass of charges and time for which it initiates. The offered estimation of seismic effect of millisecond-delay blasting of system of blasthole charges allows to prove a decrease in 1,3-1,8 times seismic loadings on hills at reduction of quantity ВР that is undermined for one millisecond and increase in duration of explosion. It consists in the account of pauses of slowing-down of each charge of explosive, the general duration of explosion and quantity of degrees of slowing-down, Thus, seismic effect are estimated by an indicator of seismic intensity.

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