1) overburden strata
采场上覆岩层
1.
By a study of top coal drawing method modelling with analogue material in laboratory, this paper presents the movement law of overburden strata and the ground presure mantfestation character of top coal drawing faces,at the same time,sets up the ground pressure structure model of top coal drawing faces.
通过对放顶煤开采方法的实验室相似材料模拟研究和现场矿压实测资料的分析,文章提出了放顶煤采场上覆岩层移动规律和采场矿压显现特征,同时还建立了放顶煤采场矿压结构模型。
3) overlying strata
上覆岩层
1.
Analysis on the mechanism of the face-contacted blocks structure in overlying strata above the longwall face;
采场上覆岩层面接触块体结构的力学机理分析
2.
Analysis on the damage zone of overlying strata and safety layer distance on the upward mining above the longwall goaf
长壁开采上覆岩层损伤范围及上行开采的层间距分析
3.
Based on the experiment with similar material,the laws of the extra subsidence on the surface and the stress vary inside overlying strata by newly increased load on the surface above worked-out area formed by fully mined and partial mined were researched.
通过相似材料模拟实验,研究了全部开采和部分开采条件下的采空区在地表新增荷载后,地表附加沉降和采空区上覆岩层内应力的变化规律。
4) overburden
[英][,əʊvə'bɜ:dn] [美]['ovɚ'bɝdṇ]
上覆岩层
1.
Underground coal seam mining,stope roof caving,overburden subsidence,destruction and even surface settlement is a entire process,a unified system.
通过比值法、"三带"判别法、围岩平衡法、数理统计法对七五煤矿下组煤上行开采的可行性进行了研究论证,得知上行开采是可行的;为上行开采的上覆岩层运动规律理论分析与可行性研究论证提供了重要经验和借鉴。
2.
The casing deformation caused by sand production of unconsolidated sandstones and caving of the overburden is studied .
以东濮凹陷WZ油田历年井况大调查套管损坏资料为依据,在对出砂油井套管损坏形态、层位与射孔状况、岩石性质等因素进行综合分析基础上,对疏松砂岩出砂、上覆岩层坍塌等主要方面导致的套管受力变形进行研究,为探讨及防治措施提供依据。
5) mined strata
采空区垂直上覆岩层[能]
6) overlying strata of upper coal seam
上位煤层覆岩
1.
To solve the traditional judgments difficulties of the ascending mining, the relationship between the ascending mining and the overlying strata of upper coal seam was expatiated, based on the analysis of the mechanism of ascending mining and the traditional main factors that influence it.
理论分析、数值模拟和工程实践证明,上位煤层覆岩岩性及结构对上行开采有影响。
补充资料：采场测量
采场测量
surveying in stope
ea一ehang eellang采场测且(surveying in stope)采场回采矿石阶段的测量工作。采场测量的目的是绘制采场的平面图、纵投影图和断面图，以统计矿石产量和计算矿石损失率和矿石贫化率。采场测量包括:(l)根据采准巷道和采场内的控制点标定采场位置、炮孔位置、验收和填图。(2)测量采场的轮廓并填图。 随着.矿体赋存条件和采矿方法的不同，采场测绘方法也异，分为人员能进人的采场测量、深孔刚量和采场空周测量。人员能进人的采场测量分为两种情况:(l)矿床较窄，用浅孔留矿法开采时，形成狭长采空区，在两天井间敷设经纬仪或罗盘仪导线，用支距法测量采场轮廓。并绘制采场平面图、断面图和纵投影图等(图1)。(2)采场较宽大时，采用极坐标法，用经纬仪、平板仪或罗盘仪进行测绘，通过天井把导线点引入采场，建立控制点I、I、兀、份(图2)。在l点安置经纬 纵投影图A一A断面图经 图1留矿法采场图姐分 图2宽大采场测t仪，后视l点，依次测量采场各轮廓或顶底板各特征点的坐标和高程，最后绘制采场图。
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