Broken Surrounding Rock

core recovery from loose rock

loose circle theory of surrounding rock

loose range of surrounding rock

loose ring of surrounding rock

Loose Rock and Soil

loose rock dam

loose rock formation

Loose rock zone around roadway

Broken rock element

Broken rock mass

Broken Surrounding Rocks

bulking deformation of rock broken

confined broken rock

mining gateway with dynamic broken surrounding rocks

rock broken mechanism

size characteristic of broken rock

soft and broken surrounding rocks

the supporting theory of broken rock zone