傾斜礦柱 的英文怎麼說
中文拼音 [qīngxiékuàngzhù]
傾斜礦柱
英文
slope pillar-
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。On the cover caving in the sublevel caving of slightly dipped thick orebody
緩傾斜厚礦體無底柱分段崩落法放頂方式探討On the illustration of mining in deeply inclined coal seam under buildings in muchengjian colliery in beijing, the confirmation method of coal pillar dimension and the united layout of pseudo - dip strip pillar and boundary pillar were put forward to provide theory foundation for the control of surface movement and subsidence in the mining of deeply inclined coal seam
摘要以北京木城澗煤礦大臺井建築物下壓煤開采為例，提出了急傾斜煤層開采條件下條帶煤柱尺寸的確定方法和傾斜條帶煤柱與邊界煤柱相結合的條帶布置方案，為急傾斜煤層開采地表沉陷控制提供了理論依據。Xinji no. 3 coal mine is a steep mine. it has reached pre - results by isolating the pillar with loosen blast technology in recovery area. the recovery rate is lifted and coal loss is reduced. it is an example for the same mine
新集三礦屬急傾斜礦井，在回收區段隔離煤柱中應用松動爆破技術，達到了預期效果，提高了采區回採率，減少了煤炭損失，並為同類型礦井提供了經驗。Discussion on mechanism of surface collapse pit and dimensions of obstructive ridge for steep inclined coal seam mining
急傾斜煤層開采地表塌陷坑形成機理與安全礦柱尺寸研究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