採掘煤層 的英文怎麼說
中文拼音 [cǎijuéméicéng]
採掘煤層
英文
tap a seam-
Because the kinds, structure, storage and stratification of coal are different, it is difficult to analyze the effect factor on coal cutting power. based on a lot tests, the change rule of cutting parameter with cutting power is discussed, it is an important basis for designing, researching and selecting mining equipment, prcessing and technical reform
由於煤炭的種類、結構、賦存和層理的不同，給分析影響煤炭切削力因素帶來了困難，在大量實驗的基礎上，討論了切削力隨切削參數的變化規律，為設計、研究、選擇採掘設備、開采工藝、技術改造提供了重要依據。Abstract : because the kinds, structure, storage and stratification of coal are different, it is difficult to analyze the effect factor on coal cutting power. based on a lot tests, the change rule of cutting parameter with cutting power is discussed, it is an important basis for designing, researching and selecting mining equipment, prcessing and technical reform
文摘:由於煤炭的種類、結構、賦存和層理的不同，給分析影響煤炭切削力因素帶來了困難，在大量實驗的基礎上，討論了切削力隨切削參數的變化規律，為設計、研究、選擇採掘設備、開采工藝、技術改造提供了重要依據。The construction methods and caving protection measures for punching high thick and loosen soft coal seam in luling coal mine no. 2 dark tilt well in huaibei coal mine area are introducded. they include small section enlarged after the heading caving, high negative pressure and multi - raw drilling holes and strenous drawing - off, concentrated cross drill holes, cutting while drawing - off and putting the metal frame away
介紹了淮北礦區蘆嶺煤礦2主暗斜井採用小斷面導硐后刷大、高負壓多排鉆強抽，密集交叉鉆孔邊掘邊抽及設置金屬骨架施工方法和防突措施揭穿高突特厚松軟煤層。Here the wealth of the land lies below the surface in rich coal seams, and the mining villages have grown into busy towns around iron and steel foundries, chemical works and oil refineries
這里礦藏豐富，地表下有厚厚的煤層，因發展採掘業而形成的村落現已成為繁華的城鎮，周圍有鋼鐵鑄造廠、化工廠及煉油廠。Based on the rock pressure ' s characteristics of the pre - driven roadway, the rational support plan and parameters about roof bolting with bar and wire mesh are determined, and the manner of driven waste in place of coal was adopted
基於斷層中預掘巷的礦壓特點，確定出其合理的錨梁網支護方案與支護參數，並採用了掘出的矸石與煤的合理「置換」方式。Based on rheologic and mutative mechanism of coal and gas outburst, this article discusses the forecast of outburst danger of in 7 ( superscript # ) coal heading face of jinjia mine by adopting coal and gas outburst volume dynamic index after blowing out. it determines the index critical value, and also presents the tentative testing result
摘要基於煤與瓦斯突出流變突變機理，探討了金佳礦7 （上標# ）煤層掘進工作面採用放炮后落煤瓦斯湧出量動態指標預測突出危險性，確定了指標臨界值，並介紹了初步試驗效果。Trial of bolting with wiremesh along double gob - side entry in three soft seam
三軟煤層雙沿空掘巷採用錨帶網支護的嘗試Fast driving technology of bolt mesh supporting mining roadway in big angle coal seam
大傾角煤層回採巷道錨網支護快速掘進技術分析Characteristics of faults in main seams of laoyingshan mine and their influence upon arrangement of development and working faces
老鷹山礦主採煤層內斷層的特徵及其對採掘工作面布置的影響分享友人