Title: Study on the Stability of Long-wall Mining-field Roof Structure under the Ultra Close Distance Coal Seam Tool Pillars
Abstract: Through the finite element numerical analysis on destroying characteristics and stability of tool pillar of the upper coal seam and the research on the stability of the roof of the lower coal face, this paper draws the stability characteristics of the roof structure of lower coal stoping face.
Publication Year: 2007
Publication Date: 2007-01-01
Language: en
Type: article
Access and Citation
AI Researcher Chatbot
Get quick answers to your questions about the article from our AI researcher chatbot