【摘要】 通过中关铁矿现场取样,进行了矽卡岩力学特性试验,分析了矽卡岩单轴抗压强度、抗拉强度和三轴抗压强度实验结果,得到了该岩体的力学参数,指出矽卡岩在实际巷道工程中易出现顶板冒落或岩柱失稳现象。更多还原

【Abstract】 Through the field sampling in Zhongguan iron mine,this paper made skarn mechanical properties test,analyzed the test results of skarn single axial compression strength,tensile strength and three axis compression strength,gained the mechanical parameters of the rock,pointed out the skarn liable to occur the roof caving s and rock pillar instability phenomenon in actual tunnel engineering.更多还原