Key;
Laboratory;
of;
Geomechanics;
and;
Geotechnical;
Engineering,;
Institute;
of;
Rock;
and;
Soil;
Mechanics,;
Chinese;
Academy;
of;
Sciences,;
Wuhan;
430071,;
China;
of;
Civil;
Engineering,;
Southwest;
Jiaotong;
University,;
Chengdu;
610031,;
China;