Don Blankenship, CEO, Massey energy: "Most coal mined by surface mining cannot be deep mined... energy resources would be lost if not surface mined... our company is an energy company," he added.
MasseyEnergy的首席执行官Don Blankenship表示：“采用地表采矿，大多数煤炭不能深采…不采用地表采矿，会造成能源损失…我们公司是能源公司。”
Mobility between surface mining, underground mining, coal or metal mining sectors may be limited by differences in production technologies and licensing requirements.
表面开采，地下开采，煤或金属采矿行业之间的流动性可能会因生产技术和许可要求的差异而受限制。
Surface subsidence and the discharge of refuse, wastewater and waste gas constitute the main impact of coal mining on the environment.
煤炭开采过程中对环境的主要影响有地表塌陷破坏和废石、废水、废气的排放。
Moreover, there are some other influencing factors such as: thick loose bed, surface mining degree, impel speed of working face, coal mining and roof manage methods, mining procedure and time.
此外，厚松散层、地表采动程度、工作面推进速度、采煤方法与顶板管理方法、开采程序及时间因素等对采场覆岩空间结构均有一定影响。
According to the conditions of the surface coal mine in Heidaigou, the semi-continuous mining system for loess stripping was put forward, and the feasibility of this system was studied.
根据黑岱沟露天煤矿的条件，研究了黄土剥离采用半连续工艺的可行性及方式。
Mining in deep mine generally refers to the mining technology apoted for mining the specific depth coal that is apart from surface.
深矿井开采一般是指为开采距地表特定深度的煤炭而采取的开采技术。
The observation station of surface movement is the important basis of acquiring the parameters of coal mining subsidences.
地表移动观测站是获得煤矿开采沉陷参数的重要依据。
On the basis of probability integration method for flat coal seam, the paper discusses surface subsidence random medium model for mining inclined seams with an Angle of a.
在水平煤层概率积分法的基础上，讨论了开采倾角为口的倾斜煤层的地表下沉随机介质模型。
This article gives a detailed analysis of the characteristics of conventional surface mining equipment and techniques as well as problems arising from mining in coal seams with difficult conditions.
针对露天煤矿复杂煤层的地质条件，全面分析了传统的露天采矿设备、工艺形式的特点和在复杂煤层开采中存在的问题。
The maximum subsidence induced by mining bedding ore(such as coal seam) is an important parameter for estimating the degree of surface movement and deformation.
最大下沉值是度量层状矿体（如煤层）开采引起的地表移动变形程度的重要参量。
The surface subsidence basin is the result of underground coal mining.
地下采煤会导致地表下沉盆地的形成。
The surface subsidence of coal cities is created by the coal mining underground, it is necessary to make the territorial planning of coal cities, which based on the geological conditions.
煤层的地下开采造成煤矿城市的地面沉陷，应搞好以地质状况为基础的煤矿城市的国土规划。
In China, with coal resource mining in deep-lying being developed, therefore, the main technology problems about prediction and control of surface subsidence are brought out.
随着我国煤炭资源的开采向深部延伸，带来了地表沉陷预测与控制等主要技术难题。
Modelling tests are made to study problems of supporting state of coal pillar together with characteristics of overlying strata and surface movement in partial mining in this paper.
本文通过相似材料模型试验探讨了条带法开采中条带煤柱的支撑状态及覆岩和地表移动问题。
Coal mining in remote mountainous district mainly on drift of coalpit, and its influence on surface deformation has already been attention.
偏远山区矿山开采多以小窑掘进为主，其对地表变形的影响已引起人们的重视。
The technique has been successfully used in Xingdong coal Mine and the good results of disposing waste in underground and mining coal resource under the surface building have been realized.
此项技术在邢东矿井得到成功应用，实现了矸石井下处理与建筑物下煤炭资源的开采利用。
It is the most common way to remain coal safety pillar for protecting surface buildings from mining damage.
留设保护煤柱是防止建筑物受采动损坏的最常用方法。
Test results of surface gas extraction technology from boreholes in the goaf in Zhangbei Coal Mine, Huainan Mining Group are introduced in the paper.
本文介绍了淮南矿区张北矿地面钻孔抽采采空区瓦斯技术的试验成果。
Take the Shuangyashan mining bureau east nine to picking zone the working surface as the object of study the third coal mine of Dongrong, carries on the tunnel picking zone monitor design.
以双鸭山矿务局东荣三矿东九采区综采工作面为研究对象，进行采区巷道监测设计。
Taking the dump of No. 2 surface coal mine in Shenglidong mining area in Inner Mongolia as a case. The research method is the combination of on-site investigation and data analysis.
以内蒙古胜利东二号露天矿排土场为例，通过实地调研与资料分析，对矿区采取的复垦技术进行了分析和总结。
Underground mining in coal mine must cause land surface transformation so that a series of geo-hazards will be occurred such as land destroy, waterlogging, landslide and house collapse.
矿山地下煤层开采引发地表沉陷变形，可造成土地破坏、房屋倒塌等一系列灾难性后果。
The deformation characters of the broken rocks are the important factors that affect the roof caving and surface subsidence above goaf in coal mining.
破碎岩石的变形性质是影响采空区覆岩垮落与地表沉陷的重要因素。
The surface deformation operates within the allowable deformation of building. The research results have been successfully applied to coal mining.
设计矸石置换开采充填工艺，该研究成果已成功应用于工程实践。
The surface deformation operates within the allowable deformation of building. The research results have been successfully applied to coal mining.
设计矸石置换开采充填工艺，该研究成果已成功应用于工程实践。
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