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- longwall shortwall coalcutter 万能截煤机
- This technology, being an important supplement for longwall mining technology, is called modern shortwall mechanical looping mining technology. 这种技术被视为现代短壁机械化采煤技术，是长壁采煤技术的重要补充。
- These seals are primarily used for Longwall Roof Supports. 生产的密封主要用于长壁工作面液压支架上。
- The reasonable layout of tunnel below longwall face is described. 论述了受采动影响的底板岩巷的合理布置问题。
- 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。
- The paper can be the technical support for the application of the domestic mechanized shortwall mining technology. 为国产短壁机械化开采成套技术推广应用提供技术支撑。
- The shortwall ladder prop mining method namely strip extraction has been more extensively applied currently in small coal mine of Shaanxi province. 短壁刀柱采煤法即条带开采,目前在陕西省小煤矿开采中较广泛应用。
- With the support system, Cuijiazai Mine was successfully in a longwall coal mining. 应用此方法,崔家寨煤矿成功实现了长壁连续开采。
- According to the conditions of seam No.5 in Shifengshan Coal Mine,longwall face roof coal drawing method is chosen. 通过对峙峰山煤矿5号煤采煤方法的设计,提出了采用综采放顶煤法回采5号煤。
- 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、俯斜开采的老顶岩层视为倾斜弹性板。当板的长短跨度之比＞2时，板的荷载主要由短跨边来承担。
- Its successful selection and application are the prerequisite for successful longwall mining . 正确、合理地选择液压支架架型是长壁工作面采煤成功的前提和关键。
- ABSTRACT ：Modern longwall mining employs hydraulic powered supports at the face area. 摘要：液压支架广泛应用于现代长壁采煤工作面上。
- The strata behavior rule of Longwall face with individual props in shallowly buried coal seam covered with thick soil was summarized. 实验和观测表明，尽管其上覆岩层的力学强度比较小，煤层埋深浅，但工作面初次来压步距大，矿山压力显现剧烈，周期来压台阶下沉量大。
- 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 structural characteristics of floor in the longwall face, the structural model of the key stratum (KS) in floor is established. 根据采场底板岩体结构特征,建立了底板岩体的关键层(KS)结构模型。
- The expert system of weighting on the basis of these knowledge can satisfy the demand of roof weighting forecasting in longwall face. 架起了“自动预报”和“预报机理”之间的桥梁，经实例验证，该专家系统能满足长壁工作面来压预报的要求。
- Medium and small coal mines in north of Shaanxi Province generally adopt longwall remaining coal pillars support mining. 摘要长壁留煤柱支撑法开采是陕北中小煤矿普遍采用的一种采煤方法。
- New Mining techniques and equipments are utilized to raise the production and efficiency with longwall mining in thick seam. 为了提高中厚煤层长壁综采的高产高效,采用了新的开采技术工艺和设备,达到了预想的目的。
- Based on similarity theory, immediate roof with many cracks caving in longwall face are studied and controlled by modelling experiment. 本文根据相似理论,对多裂隙直接顶的破坏问题进行了模拟实验及控制研究。
- The case of inclined longwall and overhead mining at 31005 face in Zaozhuang Coal Mine and technical manage measures are introduced. 介绍了查庄煤矿在31005工作面使用倾斜长壁仰斜开采的情况及技术管理措施，对相似条件下此类采煤法的使用提供了可借鉴的经验。
