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- Keywords open-pit coal mine;coal wall coal extraction;wriggling landslide;cross exploitation and inner dumping; 露天煤矿;煤壁回采;流变蠕滑;横采内排;
- coal wall coal extraction 煤壁回采
- The purpose of inviting you to come here is to discuss the purchase of some long wall coal cutters. 这次请您来想谈谈长臂采煤机的进口问题。
- For coal bin, a coal arch breaker can be installed at its outlet or hyperbola wall coal bin be used. 对于煤仓,可在其出口处设置破拱装置或采用双曲线壁煤仓。
- The results show that there is bigger influence of coal extraction on caking property. 结果表明,煤的抽提率对粘结性有较大的影响。
- The paper carefully analyzes bolt supporting system, and measures the parameters of coal wall rock in Fuxin diggings. 本文对锚杆支护理论进行了系统分析,并对阜新矿区煤巷围岩的参数进行了实验测定。
- Our factory is located in E'nan is Chongyang joint-stock joint venture, professional to stone coal extraction of vanadium pentoxide. 我厂地处鄂南,是崇阳联合股份共同投资,专业以石煤提炼五氧化二钒。
- CIR testing system is established,and the model shearer and model coal wall are designed and manufactured.The control system is manufactured. 建立了采煤机煤岩界面识别物理模拟系统,包括介质模拟和采煤机牵引-截割机构的模拟,研制了试验控制系统。
- Methane buoying up close to coal wall is obtained in experiment in the paper.The boundary layer equation of buoyant movement of methane is set up by means of theorectie analysis. 在实验中观测了瓦斯自然上浮运动现象,通过理论分析,得出煤壁瓦斯自然上浮的边界层方程。
- Methane buoying up close to coal wall is obtained in experiment in the paper.The boundary layer equation of buoyant movement of methane is set up by means of theorectic analysis. 在实验中观测了瓦斯自然上浮运动现象,通过理论分析,得出煤壁瓦斯自然上浮的边界层方程。
- In the meantime, the data of geodetic measurement, geological investigation and test are also analyzed, and the analytic results show that the local motion of Fushun segment on Hunhe fault is caused by coal extraction. 同时,对大地测量结果、地质勘察及试验结果进行了讨论,结果表明:煤田开采诱发了浑河断裂抚顺段的局部活动。
- During mine development and coal extraction, it is unavoidable to approach and disclose or touch the aquifers (water body).Mine water flood has been one of the biggest hidden troubles of accidents. 摘要在井巷开拓和煤层的回采过程中,不可避免地要接近、揭露或波及破坏某些含水层(体),矿井水害是威胁矿井安全生产最大的事故隐患之一。
- According to the complex condition of deep excavation in Xinji Mine, FLAC program was carried out for strata movement and surface displacement due to coal extraction by different mining layouts. 摘要针对新集三矿急倾斜煤层开采复杂的采矿地质条件,运用求解非线性大变形问题有限差分法(FLAC),对不同开采方案所引起的岩体移动和地表沉陷进行了研究;
- Abstract: Methane buoying up close to coal wall is obtained in experiment in the paper.The boundary layer equation of buoyant movement of methane is set up by means of theorectie analysis. 摘 要: 在实验中观测了瓦斯自然上浮运动现象,通过理论分析,得出煤壁瓦斯自然上浮的边界层方程。
- Special when coal extracts, many dissociate often is contained in ledge 2 oxidation silicon, can be as high as 40 % sometimes. 特别在煤炭开采时,矿层中往往含有大量的游离二氧化硅,有时可高达40%25。
- Deep coal extraction by cast blast and bulldozer 抛掷爆破加推土机回采深层煤
- type of coal wall being pushing out overall 整体推出型
- the working face of coal extraction 回采工作面
- coal mining; coal extraction; coal cutting 采煤
- subsidence lands of coal extraction 采煤塌陷区