Key technology of directional grouting in roof and floor of coal field in the north of the Yellow River

In order to effectively solve the double water hazard problem of the roof and floor aquifer in the coalfield of the north of the Yellow River, we takes the treatment of water disaster in Shandong Energy Qiuji Coal Mine as an example, which based on the analysis of mine hydrogeology and water disast...

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Autor principal:	CHEN Juntao, ZHANG Yi, WU Shanyuan, YANG Fan, YUN Ming, LIU Lei
Formato:	Artigo
Idioma:	Chinês
Publicado em:	Editorial Office of Safety in Coal Mines 2021-05-01
coleção:	Meikuang Anquan
Assuntos:	treatment of water disaster roof and floor injection simultaneously directional drilling grouting channel exploration precise grouting
Acesso em linha:	https://www.mkaqzz.com/cn/article/id/7440
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