Using normal and shear rigid coefficients of intact rock and fracture plane
, rigidly normal, shear equivalent rigid coefficients of fissure rock mass
are conducted. On the basis of hypotheses of small displacement of rock mas
s, principle of superposition, irrelevance of strength parameters C and T a
nd Coulomb theory, formulas to calculate equivalent strength parameters C a
nd phi of equivalent continuous mass from fissured rock mass with anchor pi
les are given. The achievement is extremely valuable in integral stability
analysis of the rock mass slope and important in promoting the research of
the rock mass's constitutive relation.