查询词典 coal mining

Many phenomenon due to deep dip angle coal seam mining are still explained very well. There are a lot of deep dip angle coal seam mining district in China, the problem of miming subsidence is very general, so the research is of theory mining and practical value.

实践中，我国很多矿区有大量的倾斜煤层存在，倾斜煤层开采沉陷与变形预计问题普遍存在，需要我们对这类矿山的地表移动规律问题进行全面研究，因而该项研究具有重要的理论意义和生产实用价值。

It is a new topic that rule of ground movement in deep dip angle coal seam mining, the coal seam angle is one of important factor of deciding the rule of ground movement , the overlying rock of steep coal seam mining have different homogeneousness in horizontal orientation.

倾斜煤层是指煤层倾角在15°—55°之间的煤层，倾斜煤层开采地表沉陷移动规律是地表沉陷研究领域中的一个重要组成部分，煤系地层倾角是决定上覆岩层的移动和破坏形式及地表移动与变形程度的重要因素之一。

It is a new topic that rule of ground movement in steep coal seam mining, the overlying rock of steep coal seam mining have different homogeneousness in horizontal orientation. Its complexity make the research of this kind of problem process is very inadequate.

急倾斜煤层开采地表沉陷移动规律是地表沉陷研究领域中的一个新课题，急倾斜煤层由于开采上覆岩体在水平向的均质性不同，其复杂性更使这类问题的研究极不充分。

The paper discusses main environmental geology problems caused by mining of coal, such as mining slump, land subsidence. Karst slump, soil hole slump and groundwater meagerness, pollution caused by mine water and coal gangue.

概述了淮南矿区采矿引起的负环境效应，如采矿塌陷、地面沉降、矿坑排水疏于引起的岩溶土洞渴陷、地下水枯竭、矿井水和煤矸石对环境的污染等。

The elements of optical waveguide strain-stress measurement and fiber bragg grating strain-stress measurement system based on wavelength division multiplexing and spatial division multiplexing are emphatically discussed; the displacement regularity of stress field induced by roadway group excavating and short wall mining process is analyzed in detail; the concept of roadway "equivalent radius","correcting coefficient of coal and rock mass mechanical parameters",and "mining affecting coefficient" is put forward; the calculation method of "equivalent radius", the method of inversion of "correcting coefficient of coal and rock mass mechanical parameters", and the "mining affecting coefficient" determination method with the field measurement results and so on are provided.

重点研究了光波导应力应变测量原理，以及基于波分复用和空分复用技术基础上的布拉格光纤光栅应力应变测量体系；详细分析了近距离巷道群开掘工作和短壁体系回采工作诱发的应力场的重新分布规律；提出了巷道"当量半径"、"煤岩体力学参数修正系数"、"采动影响系数"等概念；给出了"当量半径"的计算方法、"煤岩体力学参数修正系数"的反分析求算方法、以及通过现

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。

The company's main products: mining accessories, coal conveyor accessories, various models clip bolt, Road plywood, screws, and the severity of Road tracks, clips Road, Road from the machine, turn machines, pressure-rail, coal drill pipe, Bits, tramcar, mining wheel, gauge drawbars, space launches, and round.

本公司的主导产品：工矿配件、煤矿输送配件、各种型号道钉、道夹板、道螺丝、轻重型道轨、道压板、起道机、弯道机、压轨器、煤钻杆、钻头、矿车、矿车轮、轨距拉杆、天轮、地轮。

By using of dynamic fuzzy group method, the top coal cavability was evaluated according to the following seven factors, such as coal seam strength, mining depth, crack developing extent's features, dirt band height, filling situation of goaf, classification of main roof and the ratio of mining and caving height etc.

运用动态模糊聚类方法，以煤层强度、赋存深度、节理裂隙发育程度、夹矸厚度、采空区充满程度、老顶级别、采放比等7个因素按模糊最大隶属度原则综合评价顶煤冒放性。建立了模糊聚分析方法的数学模型，以上述7个指标为基础，对顶煤冒放性的模糊聚类分析进行运算，给出分类的实施过程。潞安矿区顶煤冒放性分类结果表明， 5对主要生产矿井主采3号煤层，其顶煤冒放性皆为好和较好，经潞安矿区综放开采实践证实，分类合理

Rock mass deformation and failure in working face caused by underground mining lead to mining-induced fracture, which is the source of a series of mine disasters. The research on geophysical characteristics of mining-induced fracture rock mass and feasible geophysical techniques with high accuracy and resolution detection on mining-induced fracture rock mass are meaningful theoretically and practically for the safety of coal mines and the prevention of mining disasters.

地下矿床开采引起采场围岩变形破坏产生采动裂隙，采动裂隙是矿山一系列灾害的根源，研究矿山采动裂隙岩体的地球物理场特征，提出可行的地球物理方法对裂隙岩体实施高精度高分辨率探测，对于防治矿山灾害发生，保障矿山安全，具有重要的理论意义和实际应用价值。

This article is based on the strip mining of steeply dipping seam under villageof 230 mining area in Ge Ting coal mine of ZiBo mining group, in view of the steeply dippingseam mining under the mining geological condition of 230 mining area, we use the limittheory, the A.H.

本文是在淄博矿业集团葛亭煤矿230采区村庄下大倾角煤层条带开采实践基础上，针对230采区大倾角煤层开采的采矿地质条件，利用极限理论和A.H。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。