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- This paper discusses the reliability of narrow coal column support from load-bearing capacity, pin timbering manner, small hole anchorage cable strengthening and top paste injection etc. 从保证窄煤柱承载能力、顶锚杆支护形式、小孔径锚索加固、顶板预注浆等方面论述了采用窄煤柱支护的可靠性。
- Keywords Lone island combined blasting face Along narrow coal column goaf tunnel Fully anchorage timbering Surface bit shift Anchorage pin load distribution; 孤岛综放工作面;窄煤柱沿空掘巷;全锚支护;表面位移;锚杆载荷分布;
- narrow coal column 窄煤柱
- At present in gasoline de-mercaptan Process active carbon is mainly in forms of coal column and fruit shell(coconut,apricot,etc). 目前应用于炼油厂汽油脱硫醇装置的活性炭有煤质柱状活性炭、果壳(椰壳、杏壳等)活性炭。
- The isolated island working face is surrounded with the goaf and its Surrounding coal column and goaf have a tendency of spontaneous combustion. 孤岛综放工作面四周均与采空区相连,其四周煤柱和工作面采空区易于出现自燃发火。
- Based on remains supposes coal column mining determined,and further to the plan optimization design, remains supposes coal column mining had determined reasonable the width. 在确定了留设煤柱开采的基础上,进一步对方案优化设计,确定了合理的留设煤柱的宽度。
- It has outlined the law of geometry formula computation as well as the formula derivation of the coal amount among the range of protecting coal column,has pointed out the superiority of this law comparing with the traditional method. 概述了保护煤柱留设的几何公式计算法以及保护煤柱压煤量公式的推导,与传统方法作了类比,指出此法的优越性。
- The optimized Width of Narrow Coal Pillar 窄煤柱最佳宽度
- Uses in the coal column filling to filter the decolorization,may reduce the powdered carbon amount used, improves the monosodiumglutamate quality, department head the coal column service life. 用于炭柱装填过滤脱色,可降低粉炭用量,提高味精质量,延长炭柱使用寿命。
- Through surmounting solves the technology knotty problem of retrieving coal column of mining area with the system mechanization mining technique.By application in mining process the effect is better. 通过攻关,解决了综采工艺回收盘区煤柱的技术难题,经过在开采过程中的应用,效果良好。
- The road is too narrow to allow the passage of gondola. 这条街太窄,大型货车不能通过。
- Analysis on Influence Factors of Rock Burst in Narrow Coal Pillar 狭窄煤柱岩爆的影响因素分析
- The mountain path is narrow and rugged. 狭隘的山路崎岖不平。
- The travelers edged warily along the narrow road. 旅游者沿着狭窄的小路小心前行。
- The column stands on a narrow base. 柱子竖立在狭窄的地基上。
- A chill struck into the narrow of his bones. 他感到一股寒意,透入骨髓。
- The tide flushed through this narrow inlet. 潮水涌过了狭窄的小湾。
- A gem cut in the form of a narrow rectangle. 狭长形宝石被切成细条形的宝石
- She turned the car into the narrow street. 她驱车拐进狭窄的街道。
- The company offers two weeks narrow boat holidays. 公司推出了为期两周的运河船度假项目。