Open AccessGEOTECHNOLOGY IMPACT ON SEISMIC ACTIVITY OF THE AREA DURING MINING PROTECTIVE PILLAR IN CONDITIONS OF SHEREGESH DEPOSIT
Author(s) -
V. N. Filippov,
А. А. Еременко,
Igor Mokrousov
Publication year - 2019
Publication title -
interèkspo geo-sibirʹ
Language(s) - English
Resource type - Journals
ISSN - 2618-981X
DOI - 10.33764/2618-981x-2019-2-5-75-80
Subject(s) - explosive material , pillar , rock blasting , mining engineering , geology , rock mass classification , seismology , geotechnical engineering , engineering , structural engineering , geography , archaeology
Analysis of blasting works during reserves mining of protective pillar of level-and-room mining and sublevel mining with application of mobile machinery is carried out. It is established that high power explosions, carried out within border of protective pillar, longtime impact on rock solid (up to 2 days and more). Each explosion forms seismic active zone in which shocks occur on the distance up to 400v and more. Converse to technology of sublevel caving with application of mobile machinery has excepted carrying out explosions with large mass of explosive materials (10t and more). Through a month, 20-30 explosions are carried out with mass of explosive material from 800-900kg up to 3000-3500 kg. Increasing of explosion number causes to the explosions produce seismic active zone and Impact to solid condition and near workings. But reduction of mass of explosive materials has caused to low frequent event. Mainly seismic events of 1 and 2 class happen.