Distribution of stress along bonded length of pressure type recoverable anchor
Based on elastic mechanics and soil mechanics theory and radial deformation coordination conditions between the anchor body outer and the surrounding rock,the distribution formulas of stress along the bonded length of pressure type recoverable anchor were derived.Compared with existing theoretical results,the formulas were proved to be more practical.The peak value and range of shear stress were analyzed with various of the ratio of the anchor body's elastic modulus to the rock-soil body's E1/E2 and the poisson's ratio of rock-soil bodyμ and anchor body's outer radius R,Results show that E1 /E2 and R are opposite to the value of peak shear stress but positive to shear stress range while μ is on the contrary.
pressure type recoverable anchorbonded lengthradial deformation
NETL
NSTL
万方数据
维普
