文章基本信息

标题：Formulation of the Problem for Calculating the Stress State of a Pillar for a Longwall Recovery Room
本地全文：下载
作者：Vyacheslav Gogolin ; Inna Ermakova ; Vyacheslav Fedusov 等
期刊名称：E3S Web of Conferences
印刷版ISSN：2267-1242
电子版ISSN：2267-1242
出版年度：2021
卷号：315
页码：1-7
DOI：10.1051/e3sconf/202131501019
语种：English
出版社：EDP Sciences
摘要：Two statements of the problem of calculating the stress state of pillars for a longwall recovery room are proposed. In the first statement, this pillar is located in the coal seam and is not affected by the adjacent extracted panel. The second statement takes into account the geomechanical effect of the adjacent extracted panel. The calculation area consists of the following blocks: the coal seam, the goaf, and the inter-panel pillar. All blocks are affected by their own weight. The problems are solved using the finite element method with pre-determined limiting conditions of the stress state within the solid strata.