This work was financially supported by the National Key Research and Development Program of China(No.2022YFC2903804);the National Natural Science Foundation of China(Nos.52004054,52274115,51874068 and 52074062).
This paper aims to determine the load bearing capacity of pre-stressed expandable props with different geometries and load eccentricities for flexible support in underground mining or excavation.It is deduced that the...