含夹矸厚煤层地面定向钻预注浆围岩改性及巷道支护技术研究#br#
李贤, 孟祥瑞, 程详, 赵光明, 顾清恒, 纪宝柱
Study on surrounding rock modification and roadway support technology of pre-grouting by ground directional drilling in thick coal seam with gangue
煤炭工程 . 2023, (11): 64 -69 .  DOI: 10.11799/ce202311011