The paper described in detail the high undercover large mining coal face roof control the basic requirements of the roof control and the strengthening of specific measures.
该文详细叙述了大采高卧底煤工作面顶板控制的基本要求和加强顶板控制的具体措施。
This paper analysis a variety of ventilating systems adopted in the coal face in mining coal of our country by using the method of statistics and compares their advantages and the range available.
本文用统计分析法介绍和分析了我国煤炭开采中，采煤工作面采用的各种通风系统并对比其优点和适用范围。
This paper analyzed the influence of mining depth, coal seam dip, mining height and face length on depth of floor water-conductive fissure zone.
综合分析了开采深度、煤层倾角、煤层开采厚度、工作面斜长等地质采矿条件对底板采动导水破坏带深度的影响。
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。
On-way distribution of dust in the full face mining was researched during the process of coal mining machine cutting coal.
研究采煤机在割煤落煤过程中，粉尘在综采工作面的沿程分布情况。
The water-inrush from floor inundates Working face 51101W in Liangzhuang coal mine, Xinwen Mining Group.
新汶矿业集团良庄煤矿51101W工作面因底板突水导致工作面被淹。
The cantilever support mining was successfully applied at No. 303 face in Xixizhuang Coal Mine.
西细庄矿在303工作面首次使用悬移支架开采获得成功。
Stability control of the head faces top-coal is one of the key techniques of realizing high production and high efficiency to coal mining in fully mechanized top-coal caving face.
大倾角松软煤层综放面实现高产高效的关键之一是端面顶煤稳定性控制。
The roof of the coal mining works face is connected with safety production and economic benefits directly.
采煤工作面顶板状况直接关系煤矿的安全生产和经济效益。
The drag-link conveyer, which is important equipment in the coal production, plays an important role for the safety of the whole mining face.
刮板输送机是煤矿生产的重要运输设备，对于整个工作面的安全起着至关重要的作用。
Along with mining depth becoming deep and coal output increasing, the gas discharge increased, and gas problem of primary mining in coal face becomes important.
随着采煤深度的下延和产量的加大，瓦斯涌出量逐步增加，采煤工作面初采期间的瓦斯问题越来越引起重视。
The feed way of the shearer is the important component of coal technology, it directly affects the output and benefit of the coal mining face.
采煤机的进刀方式是采煤工艺的重要组成部分，它直接影响到工作面的产量和效益。
The protective system of traditional MTS is made up of schism organs, but framework is complex and reliability is rather bad, which badly impacts the running stability of coal mining face.
传统型移动变电站综合保护系统大都采用分立元件实现，结构复杂，可靠性差，对采区工作面的稳定运行造成了很大影响。
Analyzing the accident of the type and reason in blast mining top-coal face, and preventative measures are provided.
分析了炮采工作面顶板事故的类型及产生原因，提出了预防措施。
Nitrogen injection to the gob with buried pipes is used in 7235 full-mechanized caving mining face in Xuzhuang Colliery to prevent the left coal oxidizing and self-igniting.
介绍了徐庄煤矿7235综放面开采中，采用埋管注氮方式向采空区注氮，防止采空区遗煤氧化自燃。
This paper introduces the methods and measures of the adjustment of support tilt caused by ultrahigh mining in fully mechanized coal face.
本文介绍了综采工作面回采超高时倾斜歪倒支架调整的方法及措施。
In the research field of mining coal, it is a new research direction that three-dimensional graph technology is applied to simulate the production process of fully mechanized coal caving face.
运用三维图形技术模拟综采工作面生产过程是煤炭开采研究领域的一个新方向。
During mechanical longwall top coal mining, the gas permeability in top coal ahead of working face has bigger difference compared with slice mining due to the increase of mining height.
综放开采由于采高的加大，导致采场前方顶煤中瓦斯渗透性与分层开采有较大的差异。
In early application of fully mechanized top coal mining, Spontaneous fire took place when the backout of fully mechanized top coal caving face was stopped mining.
在应用综放开采的初期，每当综放工作面停采回撤时，就会发生自燃发火。
Technology on retaining roadway on original site in goaf after coal mining face crossing rise is put forward.
提出一种回采工作面过上山采空区原位留巷技术。
Study was conducted on the roof of No. 3604S4 coal face and the actual mining roadway with fractals, and a few kinds of functional values of subsidence velocity of this face were obtained.
用分形对3604S4工作面和回采巷道顶板进行了研究，得到了该工作面下沉速度的几种分维值。
The technics of adding face for plow face is introduced. The better solution way to reasonable mining coal resource is provided. The particularity of equipments for thin coal seam is expounded.
对刨煤机工作面加面工艺进行了系统介绍，对合理的煤炭资源开采提供了更好的解决办法，并针对薄煤层开采设备特殊性作了细致的阐述。
Through the research of high gas and multi-water-bursting hazards prevention techniques in Jiaozuo coal mine regions, the mining coal method of caving working face is found.
通过对焦作矿区高瓦斯多水害防治技术研究，找出适合该条件下的炮采放顶煤模式的采煤方法。
As the use of coal underground mining face of electrical equipment and control equipment, must be flameproof or intrinsically safe type equipment.
但是由于在煤矿井下采掘工作面使用的电气设备和控制设备，必须是隔爆型或本质安全型设备。
This paper put forward the concept of districting coal body ahead of mining face into 9 subareas which had respective different crack development characteristic on the basis of mining crack field.
提出了工作面前方煤体采动裂隙分区的概念，将工作面前方煤体分为9个不同的裂隙区，每个区裂隙发育特征不相同。
The practices showed that the complex roof of C4 seam was effectively controlled. Therefore the roof control problem of the coal mining face under the complex roof conditions was solved.
实践应用表明，C4煤层复合顶板得到了有效的控制，解决了复合顶板条件下回采工作面的顶板控制问题。
It is important to ascertain geological condition in a coal face or a mine area before mining, so as to secure a high output and high profit mine in safety production.
采前查明采区或采煤工作面的地质条件是保障高产高效矿井安全生产的重要基础。
Air leakage from coal mining face to gob has great influence on gas distribution and emission as well as spontaneous combustion in waste.
回采工作面采空区漏风对于采空区遗煤自燃发火和采空区瓦斯分布及其涌出有重要的影响。
Air leakage from coal mining face to gob has great influence on gas distribution and emission as well as spontaneous combustion in waste.
回采工作面采空区漏风对于采空区遗煤自燃发火和采空区瓦斯分布及其涌出有重要的影响。
应用推荐