研究文章

试验研究渗流六角形柱状节理岩体的各向异性

表1

非线性Forchheimer方程的拟合结果和计算的值kβ

样本数量 最大主应力σ1(MPa) 拟合系数一个(Pa·s·m−4×1014) 拟合系数b(Pa·s2·米−7×1022) 确定系数R2 内在的渗透率k(m2) 非线性系数β(m−1)

SS0° 1 8.078E−1 −1.361E−02 0.9993 1.579E−15 −6.765E+ 12
2 8.821E−1 −1.270E−02 0.9985 1.446E−15 −6.312E+ 12
3 9.157E−1 −1.049E−02 0.9991 1.393E−15 −5.214E+ 12
4 9.852E−1 −1.543E−02 0.9991 1.294E−15 −7.669E+ 12
5 9.792E−1 −2.216E−02 0.9989 1.302E−15 −1.101E+ 13
6 8.043E−1 −1.372E−02 0.9976 1.585E−15 −6.819E+ 12

魔法石° 1 7.929E−1 −1.533E−02 0.9883 1.608E−15 −7.619E+ 12
2 9.268E−1 −2.202E−02 0.9877 1.376E−15 −1.094E+ 13
3 8.912E−1 −2.152E−02 0.9933 1.431E−15 −1.070E+ 13
4 8.455E−1 −1.856E−02 0.9940 1.508E−15 −9.225E+ 12
5 7.246E−1 −1.476E−02 0.9946 1.760E−15 −7.336E+ 12
6 4.928E−1 −6.380E−03 0.9935 2.588E−15 −3.171E+ 12

SS30° 1 8.718E−1 −1.875E−02 0.9982 1.463E−15 −9.319E+ 12
2 1.024E+ 00 −2.772E−02 0.9990 1.246E−15 −1.378E+ 13
3 1.113E+ 00 −3.456E−02 0.9960 1.146E−15 −1.718E+ 13
4 1.027E+ 00 −3.233E−02 0.9963 1.242E−15 −1.607E+ 13
5 8.599E−1 −2.280E−02 0.9984 1.483E−15 −1.133E+ 13
6 6.127E−1 −1.117E−02 0.9987 2.081E−15 −5.552E+ 12

SS45° 1 9.247E−1 −2.320E−02 0.9933 1.379E−15 −1.153E+ 13
2 9.551E−1 −2.243E−02 0.9952 1.335E−15 −1.115E+ 13
3 8.284E−1 −1.956E−02 0.9973 1.539E−15 −9.722E+ 12
4 5.011E−1 −5.140E−03 0.9990 2.545E−15 −2.555E+ 12
5 4.406E−1 −3.710E−03 0.9996 2.894E−15 −1.844E+ 12
6 3.786E−1 −2.860E−03 0.9983 3.368E−15 −1.421E+ 12

SS60° 1 8.4222E−1 −1.8600E−02 0.9965 1.514E−15 −9.245E+ 12
2 1.0840E+ 00 −2.3160E−02 0.9979 1.176E−15 −1.151E+ 13
3 1.1346E+ 00 −1.9720E−02 0.9961 1.124E−15 −9.801E+ 12
4 1.0895E+ 00 −2.1190E−02 0.9963 1.170E−15 −1.053E+ 13
5 9.9456E−1 −2.4650E−02 0.9991 1.282E−15 −1.225E+ 13
6 7.7904E−1 −1.3570E−02 0.9992 1.637E−15 −6.745E+ 12

SS75° 1 5.3832E−1 1.9100E−03 0.9867 2.369E−15 9.493E+ 11
2 6.5698E−1 2.1100E−03 0.9946 1.941E−15 1.049E+ 12
3 7.7073E−1 −1.0400E−03 0.9950 1.655E−15 −5.169E+ 11
4 8.9612E−1 −6.2300E−03 0.9916 1.423E−15 −3.096E+ 12
5 1.0872E+ 00 −9.0500E−03 0.9963 1.173E−15 −4.498E+ 12
6 1.4753E+ 00 −2.6690E−02 0.9935 8.643E−16 −1.327E+ 13

SS90° 1 5.4456E−1 1.6000E−03 0.9907 2.342E−15 7.952E+ 11
2 7.4407E−1 −6.7000E−03 0.9962 1.714E−15 −3.330E+ 12
3 8.9512E−1 −8.2300E−03 0.9975 1.425E−15 −4.091E+ 12
4 9.2963E−1 −1.6400E−03 0.9975 1.372E−15 −8.151E+ 11
5 1.1876E+ 00 −2.8810E−02 0.9779 1.074E−15 −1.432E+ 13
6 1.3268E+ 00 −3.7120E−02 0.9802 9.611E−16 −1.845E+ 13