Hydraulic coal mining offers the merits of being simple in process, high in adaptability, less in labor intensity and easy in management.
水力采煤具有工序简单、适应性强、劳动强度小、便于管理等优点。
The paper researchs the principle of protective seam mining, hydraulic slotting method and executing-digging technology to avoid risk of coal-gas outburst, and its practices in coal mine.
通过分析近距离保护层开采、水力掏槽法及边抽边掘技术防治煤与瓦斯突出原理及实践应用，从而有利于煤与瓦斯突出矿井选择合理有效的防突技术。
By analyzing the geological situation of Jixian Coal Mine, the inverted-led withdrawing way of fully mechanized mining hydraulic supports is applied.
通过对集贤煤矿地质概况进行分析，决定采用倒牵式回撤综采液压支架。
Coal mining-induced cliff rock cracking and collapse enhanced hydraulic connection between the landslide and the cliff, indirectly increased the precipitation area of the landslide.
采煤活动诱发的危岩体开裂和崩塌，加强了滑坡体与危岩体的水力联系，间接扩大了滑坡体的受雨面积。
The high mining height hydraulic support is designed for the special geologic condition of Shangwan Coal Mine, such as shallow buried depth, thin bed rock and thick aeolian sand.
大采高液压支架是针对上湾矿煤层浅埋深、薄基岩、厚风积沙等特定地质条件而研制的一种高性能综采液压支架。
The paper gives an introduction about the hydraulic element's testing system of coal mining machinery, and analyzes experimental method and results.
介绍了采煤机主要液压元件的测试系统，并对测试方法、测试结果进行分析。
Based on the data of actual observations, the paper discussed the changes of hydraulic characteristics in the Red beds and the effect of mining disturbance on water inflow in coal mines.
根据实际观测资料，论述采动作用下红层水力特征变化及对矿井充水的影响。
Hydraulic support is the key equipment of the synthetically mechanized coal mining, the dynamic performance impacts on the reliability and safety of the whole mechanized working face.
液压支架作为综合机械化采煤关键设备，其动态性能的好坏直接影响着整个综采工作面的可靠性及安全性。
For all sorts of different coal mining conditions, we should choose to suitable hydraulic support type adapting to the new environment.
对于各种不同的煤矿开采条件，应当选择与之适应的液压支架架型。
Hydraulic support is the key equipment of mechanized coal mining. The double-telescopic prop is the key component of hydraulic support.
液压支架是煤矿综合机械化采煤的关键设备，双伸缩立柱是液压支架的关键零部件。
Hydraulic support is the key equipment of mechanized coal mining. The double-telescopic prop is the key component of hydraulic support.
液压支架是煤矿综合机械化采煤的关键设备，双伸缩立柱是液压支架的关键零部件。
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