英语释义

1. a method of coal mining in which the working face extends entirely across the seam, the work proceeds either away from or toward the main shaft, and the roof is allowed to cave in behind the workers

片语

underhand longwall下向梯段式长壁回采

retreating longwall后退式长壁开采

longwall stoping长壁法

longwall undercutter长壁工作面用截煤机

longwall mining长壁开采

advancing longwall前进式长壁开采

longwall face长壁工作面

gateway longwall连续长壁开采法

英汉例句

• The paper emphatically analyses the interaction between the wall stress characteristic and coal getting by impact on the longwall face, proposes the work pattern of coal breaking by impact.

  看重分析了长壁采煤工作面煤壁应力特点和沖击劈裂式采煤的相互作用关系，提出了沖击破煤的作业方式。

• Their reliable, compact design make them the outstanding choice for powering hydraulic longwall equipment.

  他们以其简洁，可靠的设计跻身于液压长臂开采行业的领先地位。

• A new type self-walking advance timbering support set is adopted in longwall coal mining face of Halagou coal Mine, Shendong coal District by Shenhua Group co.

  神华集团神东矿区哈拉沟煤矿在长壁工作面回风巷中采用了一种新型自移式超前支护支架组。

• The paper introduces the background, the technical difficult, the general design and the operation of technical transformation in Xiagou coal mine with longwall top-coal caving mining.

  介绍了下沟煤矿综放技改合作项目的缘由、技术难点与总体技术设计以及项目运作与体会。

• The research result shows that longwall mining method with hydraulic pressure frame supporting capping rock is the optimal mining proposal for the gently inclined and extremely thin iron mine.

  研究证明，液压护顶长壁法是开采缓倾斜极薄类铁矿床最优的采矿方法。

• This paper presents the development, design and performances of a specialized wrench for retrieving bolts which are used to support the longwall headings.

  介绍一种用于回收井下巷道支护锚桿的专用扳手的开发，设计和在井下现场的使用效果。

• A major requirement of any longwall mine layout is that it provides the best possible financial performance, given the existing circumstances and limitations.

  所有长壁矿井布置的主要要求是在现有环境和限制下提供最佳的可能财务业绩。

• The paper introduced the size, equipment, gateway arrangement and production of the fully mechanized longwall coal mining faces at home and abroad.

  介绍了国内外长壁综采工作面的尺寸、设备、回采巷道布置及工作面单产的现状及发展趋势。

• Using hydraulic supports in heavy grade longwall face with sublevel caving, anti-topple and antiskid are the key factors.

  在大倾角倾斜煤层进行综放开采，支架的防倒、防滑成为决定放顶煤开采成功与否的关键。

• Based on the local, migratory and subsection characteristics of main roof fall of longwall face, the main roof was divided into some plate group, and plate group mechanical model was established.

  针对长壁工作面顶板垮落具有局部、分段、迁移的时空特征，将长壁工作面采场顶板划分成若干个相互铰接的薄板，建立了薄板组力学模型。

• The paper introduces type choose and working resistance determining of powered support and its application in longwall with top-coal caving face of xiagou mine.

  介绍了下沟煤矿综放开采支架选型与工作阻力的确定以及支架的适应性。

• Based on the structural characteristics of floor in the longwall face, the structural model of the key stratum (KS) in floor is established.

  根据采场底板巖体结构特征，建立了底板巖体的关键层(KS)结构模型。

• The new technique increases the efficiency of longwall panel mining.

  这种新技术提高了长壁盘区采矿的效率。

• Based on the model of mechanics, some functional formulae of strata and surface movement above longwall mining goaf are derived by using the displacement method of theory of elasticity.

  本文在力学模型的基础上，利用弹性理论的位移函数法导出了长壁采煤法采空区上方巖层及地表移动的函数表达式，同时给出了巖层及地表最大移动值的计算公式。

• Continuous miner is the modern mining equipment with good economic and social returns both in the room and pillar mining and the roadway excavation in longwall face.

  连续采煤机是现代化的采掘设备，不论是在房柱式采煤还是在长壁工作面煤巷掘进中，都具有很好的经济效益和社会效益。

• The paper gives a brief account of the use and developing tendency of the inclined longwall coal-mining at home and abroad.

  本文主要介绍国内外倾斜长壁采煤法的使用概况及发展趋势。

• The longwall may relax some safety problems, but the other safety problems such as hard roof rock, the colliding and friction of the caved rock each other may be induced or intensified.

  但是也可能诱发一些安全问题，如坚硬顶板对支架的沖击、采空区垮落巖石的撞击与摩擦诱发瓦斯事故等。

• Serving as the key equipment for fully mechanized longwall face, hydraulic support plays a major role to the whole face 「safe production.

  液压支架是综采工作面的重要设备，对整个工作面的安全生产起着至关重要的作用。

• Based on the successful application of gob-side entry retaining at longwall top coal caving face, a new way for realizing intensive and high efficiency is put forward in thick seams.

  综放沿空留巷技术研究成果的成功应用为综放工作面实现集约化高效生产开拓了新路。

• This all happened inside a facility that does what」s called longwall mining.

  事故发生在进行长壁开采的设施内。

• The key technology of longwall remaining coal pillars support mining is to distinguish two kinds of coal pillars of different character between regional coal pillar and isolated coal pillar.

  长壁留煤柱支撑法开采的关键技术是区分两类不同性质的煤柱，即区内煤柱和区域间的隔离煤柱。

• The roof slice longwall method increases the work of laying false roof for next slice.

  长壁采煤法的采煤工艺具有多重特点：顶分层采煤增加了要为下分层填设假顶的工作。

• By field observation and simulating test of shallow seam longwall mining, the phenomenon of main roof asymmetry breaking is discovered during the first weighting.

  依据典型浅埋煤层工作面的实测和模拟，发现了采场老顶初次破断的非对称现象。

• During mechanical longwall top coal mining, the gas permeability in top coal ahead of working face has bigger difference compared with slice mining due to the increase of mining height.

  综放开采由于采高的加大，导致采场前方顶煤中瓦斯渗透性与分层开采有较大的差异。

• The paper regards the main roof strata in uphill and downhill mining of an inclined longwall as a elastic plate.

  本文将倾斜长壁仰斜、俯斜开采的老顶巖层视为倾斜弹性板。