Ｓｅｇ－Ｃ型固态乳化复合粒状炸药研制成功金川有色金属公司地下矿采用下向分层胶结充填法浅孔爆破采矿，炮孔深度３～４ｍ，孔径４０ｍｍ，炮孔装药为人工装卷药。由于矿体节理裂隙发育，孔壁稳定性差，塌孔、堵孔现象较为严重，往往很难将药卷装至孔底，严重影响炮孔有... Seg-C solid emulsion composite granular explosives successfully Jinchuan non-ferrous metal company underground mining using the next hierarchical cementing shallow hole blasting mining blast hole depth of 3 ~ 4m, aperture 40mm, the gun hole for the artificial loading volume medicine. Due to the development of ore-body joints and fissures, the pore-wall stability is poor, collapse holes and plugging holes are more serious, and it is often difficult to mount the coil to the hole bottom, which seriously affects the hole ...