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- three soft coal roadway 三软煤巷
- Keywords three soft” coal eams;bolting support;construction management;result analysis; “三软”煤层;锚杆支护;施工管理;效果分析;
- Keywords three soft coal seam;concentrated force;creeping way;infusing water to prevent outburst; 关键词三软煤层;集中应力;蠕变状态;注水防突;
- soft coal roadway 松软煤层巷道
- three soft coal layers 三软煤层
- Soft coal burns with more flames than hard coal. 烟煤燃烧时火焰较无烟煤多。
- But the pubic only has soft coal, no any char. 可公家只有烟煤，没有干炭。”
- three soft coal seams “三软”煤层
- three soft coal seam 三软煤层
- Avoiding spontaneous ignition using plug-pipe grouting filling with loess in extra-high soft coal roadways 黄土充填插管灌浆防治特厚松软煤巷自然发火
- We also supply blind coal and soft coal from China and Indonesia. 煤炭产品主要是无烟煤与有烟煤等。
- Existing Problems of Coal Roadway Bolting Technology in Datong Coalmines Group Co. 煤巷锚杆支护技术在同煤集团应用中存在的问题。
- The technology of super long coal face in three soft layers can be realized to excavate safely and effectively by the measurement in site. 通过现场实测表明三软煤层中布置超长工作面能够实现安全高效生产。
- The results show the combined roof trusses has a practical support effect in coal roadway. 研究表明组合桁架锚杆对煤巷具有良好的支护效果。
- Poor machining quality of drillpipe of coal roadway drilling machine and the cause of rupture on case are analysed. 分析了煤矿用坑道钻机钻杆的加工质量问题和现场使用时产生断裂的原因。
- The combined support with cable bolt wire mesh and shotcreting is applied in coal roadway in Xingan Coal Mine of Hegang Mining Industry Group. 鹤岗矿业集团兴安煤矿在煤巷中应用锚索锚杆挂网喷喧支护,取得了较好的技术经济效果。
- In 1997, the Xingtai Mine succeeded in using bolting &boltmesh supporting tech. in coal roadway(supporting the top coal along the bottom). 1997年，邢台矿在全煤（沿底托顶煤）巷道采用锚杆加锚索的支护技术获得成功。
- According to the experiences with rapid drilling in mechanized caving coal roadway, the author analyzes and proposes the measures to improve drilling - speed. 根据多年机掘煤巷快速掘进施工经验进行因素分析并提出了进一步提高快速掘进的措施。
- One in every two colas and one in every three soft drinks is a Coca-Cola product (Facts, Figures, and Features 16). 每两个可乐，一个在每三个软饮料是可口可乐公司的产品（事实，数字，和特点16 ） 。
- Owing to the the fact that the difficult-to-work seams account for over 90% of these worked by hydromines,tbe coal roadway bolting technique has made slow progress. 由于煤层地质构造复杂，煤厚变化大等难采煤层条件在水采矿区占90%25以上，故水采矿井煤巷钻杆支护技术发展缓慢。
