2) coal seam thinning zone
煤层变薄带
1.
Based on the principle that thin coal-seam thickness is basically in linear relationship with its amplitude,this paper,by using 3D seismic data interpretation system,extracted coal seam reflection wave amplitude slice to analyse the colour diagram of planar amplitude generated and delimit the coal seam thinning zone.
本方法根据薄煤层厚度与其振幅基本呈线性关系的原理,利用三维地震资料解释系统提取煤层反射波振幅参数,对生成的彩色平面振幅图进行分析,进而圈定出煤层变薄带的范围。
3) thin coal seam
薄煤层
1.
Experiment on underground coal gasification of the thin coal seam in Ezhuang;
鄂庄薄煤层富氧地下气化模型试验
2.
Application of air bag support in thin coal seam recovery;
气垛支架在薄煤层回采中的应用
3.
Research on ways of high production and high efficiency of thin coal seam;
薄煤层高产高效途径探讨
4) thin seam
薄煤层
1.
Research of hydraulic support design and thin seam mining technology;
薄煤层开采技术及液压支架设计研究
2.
Rapid water injection for dust control technology with short boreholes for drilling and blasting coal mining face in thin seam;
薄煤层炮采工作面短孔快速注水防尘技术
3.
Thin Seam Comprehensive Mechanization Mining Technology and Research Equipment
薄煤层综合机械化开采工艺及配套设备的研究
5) extremely thin coal bed
极薄煤层
1.
Regarding the extremely thin coal bed coal and the gas prominentpossibility analysis,in formerly practiced was a blank,therefore inthe production process knew and took the degree to be insufficient.
对于极薄煤层煤与瓦斯的突出可能性分析,在以往实践中是个空白,所以在生产过程中认识和重视程度不够。
6) thin coal bed
薄煤层
1.
Through technical analysis on demolition mining engineering for hard thin coal beds in Fujian Province,this paper proposes that if the coal bed coefficient of hardness is different,the researched emphasis is accordingly different.
通过对福建省坚硬薄煤层爆破开采技术研究分析,提出了煤层硬度系数不同,其研究侧重点不同。
2.
Mainly introduced the application of Solidworks software to hydraulic pressure support design in thin coal bed,the hydraulic pressure support which designed using Solidworks software in thin coal bed,had achieved the design goal and the request.
主要介绍了Solidworks软件在薄煤层液压支架设计中的应用,利用Solidworks软件设计的薄煤层液压支架,达到了设计目的和要求,证明在液压支架设计中应用Solidworks软件是可行的。
3.
This paper analyses and experiment on the problem whether the near distance thin coal bed can be exploited by means of uphill low support synthesis mechanization extraction.
针对近距离薄煤层能否进行上行综机开采进行了论证分析及试验,通过现场试验,取得成功,文章对近距离薄煤层上行开采进行了总结。
补充资料:变分原理(复变函数论中的)
变分原理(复变函数论中的)
omplex function theory) variational principles (in
f日In}F(O(只,t),0)l}乙+:d乙=】nll,—}——,厂:’、一几t)〔.匕,日亡卜OC一“C’日当r,0时下*(:、,t)/:在B*的紧子集上一致地趋于0(k一1,2).该结果已被推广到二连通区域(13」).若加以进一步的限制,就能得到映射函数在B、(t)内关于表征所考虑区域边界形变的参数的展开式余项的估计式(在闭区域内一致)(【4」).份卜注】存在大量的变分原理,见【A3}第10章.亦可见变分参数法(variation一parametrie nlethod);肠”ner方法(幼wner Tnetl〕ed);内变分方法(internalvariations,服t】1‘对of). 还可见边界变分方法(boundary variations,me-tll‘xlof).M.schiffer对单叶函数的变分方法做出了重要的贡献,见〔A3」第10章.变分原理(复变函数论中的)Ivaria石0“目州址妙es(加e网Plex五叮‘6佣山印ry);。即“a双“OHH从e nP一”u“nHI 显示在平面区域的某些形变过程中那些支配映射函数变分的法则的断语. 主要的定性变分原理是ljxlelbf原理(Linde场fpnnciPle),可描述如下.设B*是z*平面上边界点多于一点的单连通区域,06B*,k=1,2;设二(;,B*)是对于B*的Green函数的阶层曲线,即圆盘王心川C!<1}到B*而使原点保持不变的单叶共形映上映射下圆周C(r)二{乙:{心}二;}的象,o<;<1.进而设函数f(:,)实现B,到B:的共形单射,f(0)‘O,在这些假定下有:l)对于L(:,B,)上任一点:?,存在位于阶层曲线L(:,BZ)上(这仅当f(B,)二BZ才有可能)或其内部的一点与之对应;及2){f’(0)1蕊}夕‘(0)},其中g(:,)满足g(0)二o是Bl到 BZ的单叶共形映射(等号仅当f(B1)=B:时成立).Lindebf原理系从Rien坦nn映射定理(见Rle-n.lln定理(Rierl飞幻In theorem))与Sdlwarz引理(Schwarz lemrr必)推出.相当精细的构造使之能够求出由被映射区域的给定形变所引起的映射函数的逐点偏差. 定量的基本变分原理系由M.A.几aBpeHTbeB(〔1」)获得(亦可见【2]),可叙述如下,设B:是具有解析边界的单连通区域,0任B!.假定存在给定区域族B,(r),0‘Bl(r),0(t蕊T,T>O,B;(0)二B,,具有JOrdan边界rl(t)={:一z,=0(之,t)},0(又续2兀,0(0,t)二Q(2二,r),其中Q(又,r)关于t在t二O可微且对又是一致的;设F(::,t),F(0,t)=0,F:.(0,t)>O,是把B,(t)单叶共形映射为BZ二{22:I:21
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条