the mechanical model of key strata supported by coal pillar is set up according to the layout of coal pillars in the coalface of short wall mining.
根据短壁开采条件下保护煤柱的布设特点,建立由保护煤柱支承的关键层力学分析模型。
these conclusions are confirmed by 1203 coalface in which water bursting occur but sand bursting not when mining.
顶板基巖很薄的1203工作面开采出现突水而未溃沙证实了这些结论。
and intriguingly, it is the bpm vendors themselves who are pushing spreadsheets back up to the coalface of finance.
而且特别有趣的是,是这些bpm软件商们曾在推广电子软件重回财务。
gas explosion accidents on the coalface of mines are studied, using minimal cut set, minimal radius set and structural importance.
应用事故树分析中的最小割集、最小径集和结构重要度,对矿井采煤工作面瓦斯爆炸事故进行了研究。
according to propagation and acting principle of blasting stress wave, fragmentation mechanism of roof(or top coal) on a slicing coalface by blasting was analysed;
根据爆破应力的传播和作用原理,分析了分层炮采面顶板(顶煤)破碎机理;
in order to determine the dynamic load on key roof of coalface in simulating model test, the intelligent dynamic load data real time acquisition system is developed.
为了实现对模拟实验中动态载荷的测定,开发了动态载荷智能实时采集系统。
more commonly, however, they reflect the desires of user 「representatives」 who are too far removed from the coalface to know the details of the real work.
但是,更常见的情况是,专案的需求只反映出使用者「表示出想要」并且不明白实际涉及执行工作的那一部份。
it has been proved by the field experiment that the method of rotary radial jet discharging gas accumulating in upper corner of coalface is really safety, dependable, economical and validly.
试验表明,旋转径向射流可安全、可靠、经济、有效的排放上隅角积聚瓦斯。
firstly, the simulation of craftwork process of fully mechanized coalface is studied in the thesis and then analyses craftwork process of fully mechanized coalface by using the object-oriented method.
coalface of daizhuang coalmine, the authors believe that the roof in lower seam will form the「block-bulk-beam」structure easy to fall after the mining of top ultra-close seam.