1) 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。
2) 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。
3) 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。
4) overburden pressure
上覆岩层压力
1.
This paper introduces the method of determining overburden pressure by using density logging data.
介绍了利用密度测井资料求取上覆岩层压力梯度的方法和步骤,并提出了一种更合理的拟合方程对上覆岩层压力梯度曲线进行拟合,以期获得更加合理的外推数据。
2.
There are certain relations among overburden pressure,underlying fluid pressure and matrix stress,and different understandings of how to describe or depict them in the end.
上覆岩层压力与下伏岩层中的流体压力以及岩石骨架应力之间,存在着一定的关系。
5) pseudo overburden pressure
视上覆岩层压力
1.
This paper aims at the question that the carbonate fonnation pressure is relatively difficult to predict, proposes estimating formation fracture pressure new method in carbonate profile by using pseudo overburden pressure method, discusses how to establish pseudo overburden pressure model in carbonate profile, and determine the parameter of model .
本文针对碳酸盐岩地层破裂压力预测相对较难这一问题,提出了一种利用视上覆岩层压力来估算地层自然破裂压力的新方法,重点讨论了在碳酸盐岩剖面中如何构建视上覆岩层压力模型,以及利用漏失测试资料和密度测井曲线确定模型参数的问題。
6) 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。
补充资料：有机覆层:有机覆层
在基体材料表面覆以有机材料的材料保护层。在机械製造中﹐有机覆层的绝大部分是涂装层﹐或称油漆层。此外﹐也有用橡胶或塑料作为覆层的。需要抗酸﹑硷和抗腐蚀性气体和液体的钢铁件﹐常用厚约 3毫米的橡胶(如氯丁橡胶)或塑料(如氯化亚乙烯共聚物)黏在表面﹐可长期保护基体不受腐蚀。这种覆层主要用在大型抗蚀容器或排气系统中。埋在土壤中的金属构件﹐常以聚乙烯带包裹保护。在喷鉬或喷不锈钢的表面上涂覆聚四氟乙烯﹐在150℃温度下摩擦係数很低﹐磨损轻微﹐适於製造低载荷和要求高度清洁的滑动轴承﹐或用在食品﹑精细包装和纺织机械上。各国的Du﹑Dx轴承都是以塑料与金属复合製成的。通过静电喷涂将环氧树脂﹑氯化聚醚﹑聚四氟乙烯以及聚氯乙烯等塑料粉末涂覆在金属表面﹐可获多种抗化学腐蚀性极好的覆层﹐可用於输水﹑污水处理和海洋平台的设备上。有机覆层在辉光放电情况下﹐有机单体可以聚合成无针孔的有机膜﹐用作电容器的介质层。
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