【摘要】 为了研究节理条数和倾角对节理岩体的力学特性的影响,对人工制作的含多组节理裂隙岩体进行了单轴压缩试验和数值模拟,研究了节理面的倾角β、节理面的条数N对单轴抗压强度的影响。研究结果表明:(1)当节理面条数相同时,随着β由0°增加到90°时,试件的单轴抗压强度呈先减小后增加的趋势;当节理面的倾角β相同时,随着节理面条数N的增加,试件的单轴抗压强度呈逐渐减小的趋势。(2)当节理面条数相同时,数值模拟值随β的变化规律与试验值的变化规律总体相同。更多还原

【Abstract】 In order to study the influence of the number and the dip angle of joint plane on the mechanical properties of jointed rock mass, the uniaxial compression test and numerical simulation of rock mass with artificially multi-group joint plane were carried out, and the effects of the dip angle and the number N of joint plane on the uniaxial compressive strength were studied. The results show that:(1) When the number of joint plane is the same, as β increases from 0° to 90°, the uniaxial compressive strength of the specimen decreases first and then increases. When the dip angle β of the joint plane is the same, the uniaxial compressive strength of the specimen gradually decreases as the number N of joint plane increases.(2) When the number N of joint plane is the same, the variation law of the numerical simulation value with β is the same as the variation law of the experimental value.更多还原