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It has been studied a stress-strain state (SSS) along the protecting pillar width with account of the mined-out space on the basis of a computational experiment and is presented in the form of curves of vertical and horizontal stresses distribution, as well as stresses intensity distribution. The recommended engineering decisions have been substantiated and the SSS of fastening and security structures has been analysed. A certain reserve of the fastening structure loadbearing capacity as part of the frame support and the combined roof-bolting system has been revealed. An evidence base has been created for the measures development on conducting and maintaining mine workings in the zone of the stope works influence. The recommendations have been developed on the protecting pillar formation with a width of at least 40 \u2013 45 m to exclude the stope works influence.<\/jats:p>","DOI":"10.1051\/e3sconf\/202016602009","type":"journal-article","created":{"date-parts":[[2020,4,22]],"date-time":"2020-04-22T08:31:59Z","timestamp":1587544319000},"page":"02009","source":"Crossref","is-referenced-by-count":4,"title":["Method for optimizing the protecting pillars parameters in underground coal mining"],"prefix":"10.1051","volume":"166","author":[{"given":"Volodymyr","family":"Bondarenko","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Iryna","family":"Kovalevska","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hennadii","family":"Symanovych","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Serhii","family":"Poimanov","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Viktor","family":"Pochepov","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"250","published-online":{"date-parts":[[2020,4,22]]},"reference":[{"key":"R1","unstructured":"Barabash M., Material of Sch. of Und. 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