礦柱回採法 的英文怎麼說
中文拼音 [kuàngzhùhuícǎifǎ]
礦柱回採法
英文
pillar mining-
Application of caving mining technology with bottom under condition of flat dipping mid - thick body and unstable rock caused the most of trench and bottom drift, located in abutment, to be destroyed and low recovery in south area, xishimen iron mine
摘要在緩傾斜中厚礦體底板巖性不穩固的條件下，採用有底柱崩落法，由於電耙道大多處于空區邊部應力集中的部位，致使塹溝及底部結構巷道破壞嚴重而使回收率極低，採用無底柱崩落卸壓則可有效解決上述難題。Mining horizontal pillars with hydraulic roof propping in longwall caving method
在長壁式崩落法中用液壓支柱護頂回採水平礦柱Pillar drawing in room - and - pillar mining at jinshan gold mine
金山金礦房柱法開採的礦柱回採Study on high sublevel stoping of shallow - hole shrinkage system with sill pillar in thin - small ore body
薄小礦體有底柱淺孔留礦法高分段回採的研究The practice of stoping complex orebody on low - angle dip of deep well in hydraulic set mining method
水壓支柱全面法回採深井緩傾斜復雜礦體的實踐分享友人