Study of Loading and Running Characteristic of Hydraulic Support in Underhand Mining Face

According to complex geological conditions of working face E1108 in Xin-ji mine #2, loading and running characteristic of hydraulic support, influence of depression angle on mining pressure behaviors, as well as relation between advancing speed and the support loading were measured and analyzed. The...

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Bibliographic Details
Published in:Archives of mining sciences = Archiwum górnictwa 2017-03, Vol.62 (1), p.215-224
Main Authors: Cheng, Jing-Yi, Zhang, Yi-Dong, Cheng, Liang, Ji, Ming, Gu, Wei, Gao, Lin-Sheng
Format: Article
Language:English
Subjects:
Control stability
diclinic working face
Geologic depressions
Hydraulics
large depression angle
Mining
running characteristic of support
stability of support
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Summary:According to complex geological conditions of working face E1108 in Xin-ji mine #2, loading and running characteristic of hydraulic support, influence of depression angle on mining pressure behaviors, as well as relation between advancing speed and the support loading were measured and analyzed. The results indicate that depression angle is inversely proportional to support resistance, in other words, larger depression angle area coincides with lower support resistance area. Moreover, support resistance is generally high when working face advancing speed is slow. Technologies for controlling hydraulic support stability such as improving advancing speed properly, controlling mining height and increasing support resistance are put forward based on research.
ISSN:1689-0469
0860-7001
1689-0469
DOI:10.1515/amsc-2017-0016