TITLE:
Influence of Stope Design on Stability of Hanging Wall Decline in Cibaliung Underground Gold Mine
AUTHORS:
Purwanto, Hideki Shimada, Takashi Sasaoka, Ridho K. Wattimena, Kikuo Matsui
KEYWORDS:
Stope; Hanging Wall; Decline; Cut and Fill; Cibaliung
JOURNAL NAME:
International Journal of Geosciences,
Vol.4 No.10A,
December
30,
2013
ABSTRACT: Cibaliung Underground Gold Mine applies cut and fill mining method to optimize ore production and maintain underground stability. Existing 5 m × 5 m height and width of stope geometry has a potential new design to increase production of gold due to variety of thick ore, however serious shotcrete failures often occur in hanging wall decline. This paper aims to find out the relationship between stope design and stability of hanging wall decline. The analysis conducted in this study is based on underground characteristics and geological condition of Cibaliung area. The impact of stope design on decline stability was analyzed by using numerical methods. The impact factors such as different rock mass, size of stope, and distance between stope and hanging wall decline were used in the analysis of underground stability especially stability on hanging wall decline.