留礦柱的采礦 的英文怎麼說
中文拼音 [liúkuàngzhùdecǎikuàng]
留礦柱的采礦
英文
pillar mining-
The ground base of the newly added chute in 4 tailings reservoir at dexing copper mine is characterised by thick weathered layer, loose structure, fractured zone and landslip mass accumulation. as a result, the ground has a great subsidence and inefficient carrying capacity. in view of this, the grouting technology was adopted to reinforce the chute ground base. the on - site testing shows that the subsidence of the chute has been efficiently controlled and the carrying capacity of the ground base improved so that the stability requirement has been met
潘洛鐵礦主要使用的采礦方法是淺眼落礦的全面法和留礦全面法. 23礦體160m以上礦段上部為氧化礦和風化巖層，形成擠壓爆破和鬆散巖石覆蓋下的放礦條件.介紹了無底柱分段崩落法在該礦體開采中的應用.實際使用獲得的各項技術經濟指標還比較理想Based on the geological and mining conditions and occurrence characteristics of loose aquifer of xinglongzhuang colliery, water bursting cause of 4303 full - mechanized caving mining face under loose aquifer was analyzed, the prevention measures of the 3rd aquifer and reasonable dimension of coal pillar for sand proof were discussed in this paper
摘要根據興隆莊煤礦地質采礦條件，結合鬆散含水層賦存特徵，分析了四采區4303綜放工作面第四系鬆散含水層出水的原因，探討了防治三含水的技術途徑和留設防砂煤柱的合理尺寸。Article 14 mine pillars and rock pillars to be preserved as specified in the mining designs shall, within the prescribed period of time, be protected and may not be exploited or damaged
第十四條礦山設計規定保留的礦柱、巖柱，在規定的期限內，應當予以保護，不得開采或者毀壞。The study indicates that with the increase of the coal pillar width the peak mining stress delays its appearance and the increase of the displacement and stress are not synchronous
研究表明，綜放沿空留巷受采場礦壓影響時間和程度隨留巷煤柱寬度的增加表現出明顯帶后現象以及位移和壓力增長的不同步現象。Mine ground pressure appearance and roof control of residual pillaring in upper layer in the mining of lower layer
上層殘留煤柱在下層開采中的礦壓顯現與頂板控制分享友人