摘要
本文研究了花岗岩、石英砂岩和钒钛磁铁矿试样在单轴压力下电阻率变化的性质。结果表明:随着单轴压力的增加,岩矿石的轴向电阻率变化总趋势是逐渐下降。并在加载初期下降较快;卸压时,电阻率逐渐回升,但一般不回复原来的值;在压力循环过程中,相同压力下的卸载电阻率与加载电阻率的关系对不同试样是不同的。
In this paper variations are studied in axial resistivities of granite, quartz, sandstone and vandiferous ilmenite under an uniaxial pressure. The results show that the axial resistivities of rock and ore decrease with the increase in uniaxial pressure, falling rapidly during the initial loading and recovering slowly during unloading without returing to its initial values. During loading-unloading cycles the relationship between loading and unloading resistivities at the same pressure differs for different samples.
出处
《矿冶工程》
CAS
CSCD
北大核心
1992年第2期15-18,共4页
Mining and Metallurgical Engineering
关键词
岩石
物理性质
压力
电阻率
Pressure, Physical property, Electrical resistivity
