Physical simulation test of damage character of surrounding rock under different levels of the horizontal stress
GOU Pan-feng
ZHANG Zhen-pu
WEI Si-jiang
Abstract：Using the YDM-E-type mining engineering physics model test system, which was self-developed, the deformation and failure character of the surrounding rock under different horizontal stress for using bolt support and non-support were researched by the similarity-simulation study. The experimental results show that the roadway shows a wedge-shaped roof caving for using non-support with the increased horizontal stress; while the roof of the roadway is strata falling for using bolt support, but the anchorage body would all fall if the horizontal stress increases to a certain extent and the anchorage area also shows wedge falling finally; the shear slip failure is occurred in the floor of the roadway, and the damage outer contour is anti-arched; the destruction extent of the two sides of the roadway is less than the level of the roof and floor. Therefore, it is a key to control the roof and floor of the roadway under the high level of stress.
Keywords：horizontal stresssurrounding rockdamage character
Publication Date：2009-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 1328-1332 )