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- goaf degasification 采空区脱气
- The coal spontaneous combustion in the goaf is one of the main coal disasters. 采空区煤炭自燃火灾一直是我国煤矿的主要灾害之一。
- The paper presents a new way of grouting in discrete zone and stowing in goaf. 充填开采增加矿井设备和生产成本,且充填材料来源在某些矿区比较缺乏。
- This method has the advantage in the modeling of complex models such as goaf. 在建立如采矿区这样的复杂模型时,这种方法显得很有优势。
- Groundwater, surface water, goaf and settlement of loess are induction factors. 地下水、地表水、采空和黄土湿陷性只是诱导因素。
- Slope hazards risk evaluation on Spontaneous ignition of goaf was conducted. 摘要针对采空区自然发火进行了危险性评价。
- The paper analysed contact fatigue performances of vacuum degasification steel and common electric steel. 试验并分析了真空脱气钢和普通电炉钢的接触疲劳性能。
- The equation has been set up to describe the relation between oil production and degasification radius. 随着流压的降低,井底脱气严重,原油流动阻力增大。
- VD electric furnace is a king of degasification equipment from molten steel during steel making process. VD炉是冶金行业冶炼过程中的一种钢液脱气设备。
- At the same time, the crack tendency is not obviously.In addition, degasification effect is obviously under the condition of filtration treatment. 同时,过滤处理下的试样,裂纹倾向不明显,而且过滤处理还有明显的除气效果。
- Basedon the application of the theory and the cite test, the laws of methane movement in sublevl cav-ing face and goaf are studied. 应用该理论结合现场试验,研究综放开采顶煤瓦斯和采空区瓦斯运移规律及工作面瓦斯涌出规律。
- Gas overflowed in wood road413 of this mine is through the link- roadway caused by goaf gas discrarging. 该矿413机巷后路瓦斯超限是采空区瓦斯通过联络巷泄漏所致。
- The determinant criteria of the stability of roadbed is mainly ground surface deformation caused by mine goaf collapse. 采煤空区坍塌引起的地表移动与变形是确定路基稳定性的主要依据.
- The degasification mechanism of a vacuum drilling fluid degasser, the matching of the vacuum pump with sewage pump and the selection of various parameters are discussed. 论述了真空式除气器的除气机理及设计真空式除气器时真空泵、污水泵的匹配和各种参数的选择。
- Furthermore, th e cycle of water pouring into the goaf is especially investigated. 此外,还对往采空区注水的周期进行了专门的研究。
- A 2-point mooring system is used in design and a simplified form of degasification and no dehydration is adopted in process.Some safe measures are taken in design. 在设计中采用了两点系泊系统的新技术,工艺流程采用了仅脱气不脱水的简化方式,在安全方面从设计的角度上采取了一些措施。
- The law of goaf gas outburst is summed up.The directed measures are adopted.The obvious effect is obtained. 鄂庄煤矿通过分析总结采空区瓦斯涌出的规律,采取了针对性防治措施,并取得了明显的效果。
- The influence imposed by drainage lane to goaf gas distribution is much larger in goaf's top layer than in underlayer. 泄排巷对采空区瓦斯分布的影响上层比下层更大。
- The exploration result basically accords with the geologic profile of coal field bores and bore validating of goaf. 探测结果与煤田钻孔地质剖面图、采空区钻孔验证基本吻合。
- The gradual settlement above old goaf threatens the safety of surface buildings. 采空区造成地层缓慢沉陷,严重地威胁着地表建筑物的安全。