Yielding performance of compact yielding anchor cable in working state: Analytical theory and experimental evaluation of yielding resistance enhancement effect

• The yielding resistance enhancement effect (x) significantly increases yielding force and energy-release capacity compared to unconfined conditions. • In-situ tests under varying rockmass and geostress conditions show yielding forces of 183.4–327.1 kN, confirming the practical applicability. • The analytical theory predicts yielding force with deviations of –12.5% to 6.2%, validating its effectiveness. • Higher geostress and improved rock mechanical properties enhance x, with initial geostress and elastic modulus as critical parameters.