^pkey;
laboratory;
of;
geomechanics;
and;
deep;
underground;
engineering,beijing;
100083,china;
school;
of;
mechanics;
&;
civil;
engineering,china;
university;
of;
mining;
&;
technology,beijing;
100083,china;
^pof;
mechanics;
&;
civil;
engineering,china;
university;
of;
mining;
&;
technology,beijing;
100083,china;