Abstract：The characteristic and mechanical properties of pretensioned cable with small borehole anchored by resin and grout are summarized. The measurement results of strength，structures of surrounding rocks，and in-situ stresses， the design scheme of cable，underground construction technology and monitoring are introduced， based on a haulageway with large section，soft surrounding rocks，effected by geologic structures and mining in Changcun Coal Mine，Lu’an，Shanxi. The strengthening effect of the cable is appraised，and the techno- economic benefits are analyzed by means of monitoring data.
