礦柱回採 的英文怎麼說
中文拼音 [kuàngzhùhuícǎi]
礦柱回採
英文
pillar extraction-
The application of heterogenous interface control - blasting techniques in the mining of high - level pillars at anqing copper mine
異質界面控制爆破技術在安慶銅礦高階段礦柱回採中的應用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。Optimization of drift stoping technology and parameters of crown pillar
中段礦柱進路回採工藝及參數優化Drawing back of pillars
後退式回採礦柱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By measuring goaf gas concentration distribution in 3205 working face of taopinggou coal mine, we initially identified gas concentration distribution rules in coaf of room and pillar working face, therefore provided scientific basis to prevent and cure gas accidents of goaf in such working face
摘要通過對桃坪溝煤礦3205回採工作面采空區瓦斯濃度分佈的實際測定，初步查明了房柱式回採工作面采空區瓦斯濃度的分佈規律，為今後此類工作面采空區瓦斯防治、防止采空區瓦斯事故的發生提供了科學依據。Research on cms - aided blast design for ore pillar extraction
輔助礦柱回採爆破設計研究Study of the best pillar stoping of tongguanshan copper mine
銅官山銅礦礦柱優化回採研究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Practice and monitoring technology of pillar recovery at very large mined out areas in shizishan copper mine
獅子山銅礦特大空區中礦柱回採的監測技術與實踐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。The practice of bolt support technology by remaining narrow and small coal column for extraction roadway in longgu coal mine
龍固煤礦留窄小煤柱回採巷道錨桿支護技術的實踐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Using the basic theories of hydrogeology, according to the analyses about the cause of the water bursting during the first drilling of 1211 ( 3 ) working - face in pansan mine being dug and the geological and hydrogeological condition on this working - face, the feasibility of reducing waterproof pillaring is analyzed and a project of overall arrangement and recovery on this working face is proposed
摘要運用水文地質學的有關原理，通過對潘三礦1221 （ 3 ）工作面第一個切眼掘進中突水原因和1211 （ 3 ）工作面地質、水文地質條件的分析，分析了1211 （ 3 ）工作面縮小防水煤柱開採的可行性，提出了工作面總體布局和回採方案。分享友人