适用于低甲烷矿井岩石掘进工作面。
Suitable for the rock tunneling workplace of mines with little methane inside.
以掘进工作面为例,进行矿井透水事故危险性评价。
Carry on dangerous appraisal of mine water leakage accident while regarding tunneling face as an example.
介绍了煤巷掘进工作面局部通风管理方法及管理经验。
The paper intrtroduced some partial ventilation management methods at driving face in coal tunnel.
介绍了用气动逻辑控制技术研制的煤矿掘进工作面自动喷雾装置。
The paper introduced the pneumatic logic control technology applied to auto spray device in roadway development.
适用于有低瓦斯矿井煤层采掘工作面、半煤岩掘进工作面的爆破作业。
Suitable for the coal mining blasting work of mines with little gas inside and the blasting work of half coal rock mining.
结果表明:非均匀薄壁应力现象的存在,是掘进工作面岩爆频发的重要原因;
The results show that non-uniform thin-walled stress is the main reason of the frequent rock burst in driving roadway.
本文介绍了一种煤矿掘进工作面用智能型组合开关,由主电路和控制电路组成。
This paper presents an intelligent Multi-Function Switch used in dig working face of coal mine, which be constituted by the main electric circuit and the control electric circuit.
地下水渗流导致巷道掘进工作面突水或成巷段支护失效的灾害在煤矿时有发生。
Water inrush in working face and support failure of the driven roadway caused by underground seepage occur from time to time.
矿井局部通风设备故障是导致掘进工作面较易发生瓦斯爆炸事故的主要理由之一。
Mine local ventilation facilities failure is one of the main reason which leads to the accident of gas explosions in heading face.
根据煤巷掘进工作面放炮后的瓦斯涌出规律,预测工作面的突出危险性是一种新型实用的工作方法。
It is a new practical method to predict outburst danger according to gas emission law after shotfiring at coal heading faces.
通过对掘进巷道超前支护的改进,改变了掘进头的安全状况,有效地降低了掘进工作面安全事故的发生。
By improving the fore support for heading faces, the safer condition of heading faces will become available, reduces the possibilities of accidents in heading faces.
介绍一种新型的装载机,该机能适用于巷道底板起伏变化大,工作面围岩稳定性较差的掘进工作面中使用。
The paper introduces a new style of loader which universally used for heading faces with heavy saddle back in roadway and weak stability of face surrounding rock.
本文通过基础试验和现场观测,证明了煤巷掘进工作面煤与瓦斯突出是工作面煤壁盘形拉伸破坏的连锁反应过程。
Based on laboratory experiments and in-situ observations, it has been proved that outburst of coal and gas in in-seam drivage is a chain reaction process of disc tensile fracture in a working face.
给出了回流区平均速度、最大回流速度及射流作用距离的计算模型,为掘进工作面合理有效通风提供了新的理论依据。
The calculation models are set up on average speed and Max speed in back field and jet effect distance, new theoretical reference is provided for effective ventilation in heading fa.
而在许多矿井的生产实践中,掘进工作面瓦斯涌出量却显示出与直接源涌出量不一致的特性,常常出现瓦斯涌出异常现象。
However in the productive practice of mining, the gas gush quantity in dig working face is different with the gas fountain, it often shows abnormity.
该系统以排放出的瓦斯体积分数为参量,通过PID算法来调节局部通风机转速,实现了掘进工作面瓦斯的安全排放,保障了煤矿井下的生产安全。
The system regards the gas volume fraction as the control parameters and regulates rotational speed of local fans by PID algorithm, thus making possible the safe gas drai...
在综采放顶煤工作面顺槽掘进过程中,由于顺槽煤层顶板松动破碎,并且顺槽采用矩形断面,顶板跨距较大,不利于巷道支护。
During the drivage of main-gate in long-wall face with fully mechanized caving mining, the gate is hard to support due to its loose and broken roof, large cross-section and long span.
本文介绍煤矿井下掘进巷道锚杆支护工作面用于临时超前支护的一种可调配比式轻型乳化液泵站。
The paper introduces an adjustable compounding light-duty emulsion pump station used for temporary fore support at the roof-bolt face of underground heading roadway.
介绍长沙市芙蓉路电缆隧道e标段掘进的爆破参数、工作面炮孔布置形式及起爆方式。
This paper deals with the blasting parameters, working face blast hole patterns and the initiating system in the E-Bid section of the Furong Road Cable Tunnel Construction Project in Changsha.
掘进煤巷工作面应力“三带”分布对延时突出起着关键作用。
The "three area" distribution of stress in coal driving is a key factor for delaying the outburst.
介绍了济宁二号矿复杂地质条件下综放工作面过断层技术,掘进和回采对断层的处理方法及回采工作面制定过断层方案的步骤。
The technology of crossing over fault, drifting and actual mining method and plan of crossing over fault at combined mining face under complex geology conditions in Jining no.
在对孤岛综放工作面的发火原因分析的基础上,提出了孤岛综放工作面掘进综合防灭火技术,并将综合防灭火技术成功应用于运河矿1302孤岛面掘进中。
On the basis of spontaneous combustion theoretical analysis, excavation technology of mine fire control are put forward and were applied to extinguish the fire on 1302 face of Yunhe Mine.
本文详细介绍了重叠式连续运输系统和掘锚机配套,在神东分公司进行巷道掘进的成功经验、工作面巷道布置以及掘进工艺。
The laneway dredging successful experience, collocation for working face laneway and dredging technics about the application of shendong are detailedly illustrated in this paper.
针对炮掘工作面各施工工艺瓦斯涌出的变化规律,采取了相应的应对措施进行综合治理,取得了良好的效果,为掘进面的安全掘进提供了有力支撑。
Aimed at the gas gush change law of every construction craft in the blasting driving face, the appropriate measure is adopted for gas comprehensive management.
同时,实施锚网索耦合支护的深部回采巷道能够满足巷道掘进与工作面回采期间的稳定性控制要求。
The gateway with bolt-net-anchor coupling support can meet the requirements of the stability control during gateway excavation and coal extraction.
同时,实施锚网索耦合支护的深部回采巷道能够满足巷道掘进与工作面回采期间的稳定性控制要求。
The gateway with bolt-net-anchor coupling support can meet the requirements of the stability control during gateway excavation and coal extraction.
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