Research on stress evolution law of pillar blasting of overlying goaf on fully-mechanized mining face

Research on stress evolution law of pillar blasting of overlying goaf on fully-mechanized mining face

In order to solve problems of big roof pressure and hydraulic support crushed down on working face during lower coal seam mining, taking Hanjiawan Coal Mine as engineering background, stress evolution law and roof movement law before and after blasting of residual coal pillar were studied by UDEC si...

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Bibliographic Details
Main Authors: TANG Shengli, MENG Zhuanghan, XU Shuanhai, LIU Xiaoping
Format: Article
Language:zho
Published: Editorial Department of Industry and Mine Automation 2017-03-01
Series:Gong-kuang zidonghua
Subjects:
coal mining
overlying goaf
shallow depth coal seam
room mining goaf
stress evolution
roof movement
blasting coal pillar
Online Access:http://www.gkzdh.cn/article/doi/10.13272/j.issn.1671-251x.2017.03.007

Internet

http://www.gkzdh.cn/article/doi/10.13272/j.issn.1671-251x.2017.03.007

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