Title: End-face Roof Falling Mechanism and Prevention Measure of Large-mining-height Full-mechanized Mining Face in Soft Coal-seam
Abstract:For end-face roof structure characteristic of mining face in soft and thick coal-seam,structure mechanical model of end-face roof was set up and roof instability was analyzed by block theory. The roof...For end-face roof structure characteristic of mining face in soft and thick coal-seam,structure mechanical model of end-face roof was set up and roof instability was analyzed by block theory. The roof falling mechanism and dynamic failure period of this type face was discovered. Main countermeasures of preventing end-face roof falling were present by analyzing end-face roof stability of 3307 mining face,Zhaozhuang Colliery of Jincheng Coal Group.Read More
Publication Year: 2014
Publication Date: 2014-01-01
Language: en
Type: article
Access and Citation
AI Researcher Chatbot
Get quick answers to your questions about the article from our AI researcher chatbot