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- Medium and small coal mines in north of Shaanxi Province generally adopt longwall remaining coal pillars support mining. 摘要长壁留煤柱支撑法开采是陕北中小煤矿普遍采用的一种采煤方法。
- Application of Grouting Cable Anchor in Small Coal Pillar Roadways 注浆锚索在小煤柱巷道群加固工程中的应用
- Research on Stability of Gob-Side Entry with Small Coal Pillar on Insular Face 孤岛面小煤柱沿空巷道稳定性研究
- Keywords narrow and small coal pillar;support way;transport crossheading; 关键词窄小煤柱;支护方式;运输顺槽;
- The Mining Deformation of Roadways and Failure Evolvement of Small Coal Pillar under Different Widths of Chain Pillars 大小护巷煤柱巷道采动变形与小煤柱破坏演化规律
- Application of Bolt Supporting of Gob - side small Coal Pillar Entry in Sublevel Caving Workface 沿空小煤柱巷道锚杆支护在综放工作面的应用
- Analysis and Governing of the Gas in the Working Face of the Fully- Mechanized Sub- Level Caving in the Small Coal Pillars 小煤柱综放工作面瓦斯涌出分析及治理
- Brief Discussion on Application of Support Technique by Bolting and Grouting in Roadway with Small Coal Pillar Mining 浅析锚注支护技术在小煤柱开采巷道支护中的应用
- Determining rational width of small coal pillar protecting roadways driving along next gob supported by bolting 锚杆支护沿空掘巷合理位置的确定
- Application about Combrehansive Reinforce Technology of Bolt Grouting in Roadway Groups of Small Coal Pillar and Large over-the-roadway 锚注综合加固技术在小煤柱大跨度巷道群的应用
- Determination of small coal pillar width in roadways driving along next goaf supported by bolting and mesh of fully-mechanized top-coal caving face 综放锚网沿空巷道合理小煤柱尺寸的确定
- A small coal fire burned in the grate. 炉子里生着小小的煤火。
- small coal pillars 小煤柱
- roadway in small coal pillar 小煤柱巷道
- narrow and small coal pillar 窄小煤柱
- small coal pillar 小煤柱
- Dividing partition coal pillars and region coal pillars, and selecting parameter are key to prevent disaster. 区分隔离煤柱和区内煤柱,选择合理开采参数,是防止灾变的关键。
- These are mine workers of a small coal mine in north-east of Yunnan. 云南滇东北部的小煤窑的矿工们。
- On the basis of these, the coal pillars can be kept stable by adjusting and controlling the destabilization conditions. 根据这些特性，可通过调控煤柱失稳条件使之不失稳，达到控制煤柱稳定的目的。
- The mechanical model of key strata supported by coal pillar is set up according to the layout of coal pillars in the coalface of short wall mining. 根据短壁开采条件下保护煤柱的布设特点,建立由保护煤柱支承的关键层力学分析模型。
