煤矿

It includes: the application background,the determination of support parameters,the synopsis of substep drivage method,the construction craft and experimental method,the adopting measures to the project quality after using the substep drivage method,the frond and back application of the supstep drivage method,the useful effect etc.

介绍了祁东煤矿在煤层厚度变化大等复杂条件下的掘进工作面应用分台阶掘进法施工及支护情况，包括应用背景、支护参数确定、分台阶掘进法简介、施工工艺及实验手段、分台阶掘进法使用后对工程质量采取的措施、分台阶掘进法使用前后比较、应用比较，应用效果等。

According to study on fully-mechanized coal winning machine research, application and type selection,fully-mechanized drivage technology transformation in complicated geological conditions, fully-mechanized coal winning machine matching systems transformation, and high-stress roadway fast support technology, additional benefits due to normal production replacement are ensured.

通过综掘机的研究应用及选型、复杂地质条件下综合机械化掘进技术改造、综掘机配套系统的改造及高应力巷道快速支护技术等研究，保证了正常生产接续所带来附加效益；单进水平逐年提升，在华丰煤矿21603下平巷，煤层倾角25°～26°条件下，创造出薄煤层半煤岩巷月进尺631 m，日最高进尺28.8 m的纪录；随着综掘机的不断引进以及快速掘进成套技术的大范围推广应用，综掘总进尺占煤巷总进尺的比例由2004年的21.45％上升至现今的 62.34％。

Industry technological levels are low, with only 12% of mines capable of mechanized mining, and 40% of mines still using backwards, dynamiting methods.

煤炭重特大安全事故频发，中小煤矿占了不小比重。

So, EME can be applied to forecast the rock burst in coal mine. Studies show that EME usually becomes stronger with the increase of load and the rate of deformation.

由于煤岩冲击破裂过程中，裂缝的形成和颗粒的摩擦会产生电磁辐射，因此，可采用电磁辐射技术来预测煤矿的冲击矿压危险。

In order to improve accuracy and reliability of risk evaluation of gas outburst fatalness, The grey relation analysis method was used to discuss the theory, process, computation of risk evaluation.

为了提高煤矿瓦斯突出危险性风险评价的准确度和可靠性，采用灰色关联分析方法，研究了瓦斯突出危险性风险评价的理论、过程与计算步骤。

Gas forepassed data collected from coal mine monitoring system were analyzed for their character.

对煤矿监测监控系统采集到的瓦斯历史数据进行特征分析，通过小数据量法判定瓦斯时间序列为混沌时间序列。

In this gaslit gut of a place, which was as narrow and circumscribed as a gallery in a mine, one was well-nigh suffocated.

这条走廊既矮又窄，颇像煤矿里的坑道，只有几盏煤气灯照明，人待在里面感到窒息。

The Da＇anshan coal mine already entered the deep mining stage, Geologic structure is complex by the fold geologic structure primarily in the Minefield, the mining coal working surface and the tunnel impact geostatic pressure occurs frequently, but so far has not conducted the system research.

大安山煤矿现已进入深部开采阶段，井田内以褶曲为主的地质构造复杂，采煤工作面和巷道冲击地压发生频繁，但到目前为止还没有进行过系统研究。

Non-fire retardant rubber conveyer belts traditionally used in mines and recommended fire retardant PVC, PVG conveyer belts are tested over a range of external heat fluxes 20～50kW2 with a cone calorimeter. Ignitability, heat release, smoke toxicity, specific extinction area of these belts are systemic ally studied in this paper.

利用锥形量热计对我国煤矿传统使用的非阻燃橡胶输送带和目前推广应用的PVC和PVG阻燃输送带在20～50kWm-2辐射能量条件下的点燃性能、热释放性能、烟气毒性及烟气的减光性进行了系统的实验研究，结果表明，非阻燃CR输送带的火灾危险性远大于阻燃输送带PVC与PVG，但阻燃输送带PVC与PVG的CO生成率较高。

The colliery endangers the trade, because the particularity of the production environment , condition are changeable and incomprehensiveness high as one, happen probability of the accident relatively high , the safety work has always become the topic that the whole society has paid close attention to.

煤矿作为一个高危行业，由于生产环境的特殊性，条件多变性和不可知性，发生事故的机率较高，安全工作历来成为全社会关注的话题。

And discuss some key point of integrated management system design, include hazard identification and risk assessment and risk control in the occupational health and safety management, the measure of satisfaction target of customer, the flawlessness of law system, the integration of the integrated management system and enterprise standardization system, unify lead institution and work orgnization, integreted internal audit and integrated management review.

同时，论述了一体化管理体系构建中的几个主要问题，包括职业健康安全管理中的危险源辨识、风险评价和风险控制、顾客满意度的科学监测、法律、法规体系的完善、一体化管理体系与企业标准化体系的有机结合、统一的领导机构和工作机构、一体化的内部审核和管理评审。

Deepwater Taranaki is investigated for its petroleum potential, using all available seismic data tied to shallow-water wells.

运用与浅水井相关的现有全部震波探测数据考察了深海区塔拉纳基盆地的油藏前景。