CAJ | 학술논문

应用曲永新提出的"不规则岩块干燥饱和吸水率判别法"和成岩胶结系数指标法,对山西某一煤矿巷道中泥质岩的膨胀性进行综合判定,其属于非膨胀性泥质岩.并对巷道中岩样的矿物组成成分进行分析,岩石中石英和铁矿的含量较多,且分布极不均匀,所含粘土矿物主要为高岭石.最后,从岩石的矿物组成、结构构造、节理面及微节理面的特征以及岩石在受压力时裂隙的扩张情况等角度,综合分析得出泥质岩以脆性破坏为主.
응용곡영신제출적"불규칙암괴간조포화흡수솔판별법"화성암효결계수지표법,대산서모일매광항도중니질암적팽창성진행종합판정,기속우비팽창성니질암.병대항도중암양적광물조성성분진행분석,암석중석영화철광적함량교다,차분포겁불균균,소함점토광물주요위고령석.최후,종암석적광물조성、결구구조、절리면급미절리면적특정이급암석재수압력시렬극적확장정황등각도,종합분석득출니질암이취성파배위주.
This paper adopts the two methods: water absorption of irregular rock in both dry and saturated conditions and cemented coefficient of rock, proposed by Qu Yongxin, to study the swelling potential of mud rock. The mud rock is in some tunnel coal mine in Shanxi. The results show that the mud rock does not swell. On the other hand, the paper examines the mineral composition of the mud rock. It is found that the mud rock has much, non-uniform distributed quartz and iron, as well as kaolinite. The kaolinite is the main clay mineral. The mud rock shows brittle failure when it is compressed under uniaxial and triaxial tests with low confining pressure. Finally,the paper introduces several factors influencing the failure of rock. The factors include mineral composition, configuration and conformation, characteristic of joint or tiny joint surface and extension cranny in rock.