Coal mining method in the deeply inclined coal seams with hydraulic powered shield supportson single leg sustai;

大倾角煤层单腿支撑式柔性掩护支架采煤法

Analysis and handle some question and hitch in the mining coal face of hydraulic powered shield supports;

掩护支架工作面问题分析和故障处理

By calculating the load-carrying ability,the angle between the canopy and the shield,and the stroke of the stubilising ram,the peper makes a detailed study of influences of the connection position dimensions on performances of two-leg shield supports using computer simulation analysis, and lays the theoretical foundation for designing the rational connection position dimensions.

探讨了平衡千斤顶定位尺寸对二柱掩护式支架承载能力，顶梁与掩护梁间夹角和平衡千斤顶行程等支架性能的影响。

Balance ram is a key component of a two-leg shield support.

平衡千斤顶是二柱掩护式支架的关键部件，在实际工作过程中时常发生损坏。

Taking a two-leg shield supportas an example,this paper presents the theory of the shield supporting ability areas.

本文以二柱掩护式支架为例。

The article elaborate on a strong point of ZY6000-25/45 hydraulic shield support,which is increasing useful time of upright post,meet the needs of traffic condition and geological condition,proving two plan of technical reform of ZY6000-25/45 hydraulic shield support.

通过论证ZY6000-25/45掩护式液压支架在技术改造中的两个方案,阐述了ZY6000-25/45掩护式液压支架改造的创新点在于能增加立柱使用寿命,满足运输条件要求,也符合工作面地质条件的要求。

In order to solve the problem of support-strata worsening induced by improper supporting in top-coal caving working face,the role of equilibrium jack in adaptability of 2-leg shield supportis studied.

针对两柱掩护式支架在放顶煤工作面出现的因位态不合理而引起支架围岩状态恶化的情况,对平衡千斤顶在放顶煤两柱掩护支架适应性的作用进行了探讨。