温度影响下花岗岩宏、细观力学性质演化规律

杜广盛,陈世江,武海龙

Evolution of Macro and Meso Mechanical Properties of Granite Under the Influence of Temperature

Guangsheng DU,Shijiang CHEN,Hailong WU

表4 试件力学参数和细观孔隙参数

Table 4 Mechanical parameters and pore parameters of test piece

温度工况 单轴抗压强度/MPa 应变/% Td/（n/a） Tn/ms 200-2 104.82 0.477 77.504 22.241 200-4 109.52 0.537 109.698 30.041 200-6 109.16 0.536 144.811 31.371 200-8 115.06 0.560 126.038 25.261 200-10 105.49 0.516 144.811 35.983 300-2 98.90 0.478 191.164 29.931 300-4 111.62 0.569 191.164 36.240 300-6 88.34 0.488 191.164 33.045 300-8 86.54 0.541 204.907 33.829 300-10 86.93 0.543 270.496 34.615 400-2 85.96 0.604 289.942 39.848 400-4 94.02 0.704 310.786 54.052 400-6 86.79 0.806 382.749 55.569 400-8 88.18 0.864 410.265 57.884 400-10 74.49 0.791 439.760 55.722 500-2 72.69 0.908 439.760 62.122 500-4 72.75 0.954 410.265 73.637 500-6 65.25 1.095 580.522 112.459 500-8 56.47 1.114 580.522 135.556 500-10 48.77 1.224 622.257 155.082 600-2 60.61 1.637 580.522 162.011 600-4 31.71 1.455 666.992 188.872 600-6 35.71 1.766 580.522 192.529 600-8 8.92 2.202 880.488 516.347 600-10 9.58 2.328 666.992 479.786