Liu Xing-yua
Abstract
The author points out the current situation of the Hequ country coal mine roadway excavation,analyzes the factors of having influences on roadway speed excavation,and discusses future development trend of the coal mine roadway excavation,so as to improve roadway construction technology,speed up excavation speed.
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The author points out the current situation of the Hequ country coal mine roadway excavation,analyzes the factors of having influences on roadway speed excavation,and discusses future development trend of the coal mine roadway excavation,so as to improve roadway construction technology,speed up excavation speed.
Key concepts: Excavation, Mining engineering, Coal mining, Engineering, Coal, Current (fluid), Geotechnical engineering, Civil engineering