摘要
三山岛金矿矿体属于破碎带蚀变花岗岩型大型金矿床,且目前已进入深井采矿时期。受深井高地应力及围岩自身破碎特性影响,其主要巷道永久支护成为深部开采的主要难题。针对其围岩特性进行三维建模及稳定性分析,对胃炎进行岩体质量分级。有针对性的对不同质量等级的围岩采用不同支护方式,已形成有效支护方案。
The ore body of the shshan Dao gold deposit belongs to the altered granite type large gold deposit in the fractured zone and has entered the deep well mining stage.Due to the influence of deep well stress and surrounding rock fragmentation,permanent support of main roadway has become the main problem of deep mining.Three dimensional modeling and stability analysis were carried out to classify the rock mass of gastritis.Effective support schemes have been formed for different quality levels of surrounding rock with different support methods.
作者
张恒超
ZHANG Heng-chao(Shandong gold mining(Laizhou)Co.,Ltd.,San Shan gold mine,Laizhou 261441,China)
出处
《世界有色金属》
2018年第11期57-58,共2页
World Nonferrous Metals
关键词
深井支护
高地应力
破碎岩体
岩体质量分级
联合支护
deep well support
high ground stress
fractured rock mass
rock mass quality classification
combined support
