巷道礦柱 的英文怎麼說
中文拼音 [xiàngdàokuàngzhù]
巷道礦柱
英文
heading chain 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。No safety pillars shall be mined without authorization and no dangerous methods, such as water bursting, blasting and breaking through roadways, which may threaten the production safety of adjacent coal mines shall be adopted
采礦作業不得擅自開采保安煤柱，不得採用可能危及相鄰煤礦生產安全的決水、爆破、貫通巷道等危險方法。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Abstract : this paper discussed the roadways pressure characteristics of south sublevel caving region in fengshan copper mine. by means of engineering practice and the measure results in site test, to counter the feature of roadways pressure, the supporting / reforcing technology of roadways and the controlling treatments for ground pressure is proposed in varying geological conditions
文摘:對豐山銅礦南緣無底柱崩落法采區的巷道地壓特徵進行了探討，針對其地壓顯現特點，結合工程實踐和現場實驗測量的結果，提出了不同地質條件下巷道的支護加固方案和地壓控制措施。分享友人