1) coal wall
煤壁
1.
Research on gas emission law of coal wall in blasting driving gateway of Baigong Mine;
百功煤矿炮掘巷道煤壁瓦斯涌出规律研究
2.
Study on methane emission law from the coal wall of driving gateway in Adaohai coal mine
阿刀亥煤矿掘进巷道煤壁瓦斯涌出规律的研究
3.
Introduced the coal wall shallow bore high pressure to note water method to return to adopt experimenting of work noodles and appliy in the coal min of luling,analyzed coal seam to note water to the function which declines dust and safety back to adopt.
介绍了煤壁浅孔高压注水方法在芦岭煤矿回采工作面的试验及应用;分析了煤层注水对降尘及安全回采的作用;详细地陈述了浅孔高压注水方法及注水效果。
3) coal wall spalling
煤壁片帮
1.
With the chemical grouting and reinforced technology for the coal and rock masses,the stability of the coal and rock mass was improved and the roof accidents due to the coal wall spalling was eliminated,which had ensured the successful mining operation of t.
梧桐庄矿311综采工作面煤层顶板破碎、开采煤层倾角达到20~30,°工作面煤壁片帮严重、冒顶事故频繁。
2.
In order to control the coal wall spalling in the fully mechanized high cutting longwall coal mining face,with the theoretic anal- ysis,numerical simulation,site measurement and other research methods,the paper studied the coal wall spalling mechanism of the fully mechanized longwall coal mining face.
为控制大采高综采工作面煤壁片帮,通过理论分析、数值模拟、现场实测等研究方法。
4) rib spalling
煤壁片帮
1.
Mechanism of the rib spalling and the controlling in the very soft coal seam;
极软厚煤层煤壁片帮与防治机理
2.
Prevention rib spalling mechanics of stepped cutting technology was analyzed by numerical simulation.
研究表明:台阶式割煤工艺改善了煤壁区域的应力状态,减少了工作面煤壁片帮和端面冒顶的发生不同台阶高度比割煤所引起的围岩破坏程度不同,上下台阶高度比为1∶2时煤壁塑性破坏区最小;极软厚煤层大采高开采煤壁片帮主要以剪切滑移引起的三角斜面片帮为主,超高开采是端面顶板冒落的主因。
3.
The rib spalling is one of the main factors restricting the safe and high efficient mining of fully-mechanized caving with great minng height.
片帮问题是制约大采高综采面安全高效开采的主要因素之一,为了弄清大采高工作面煤壁片帮特征,采用压杆理论分析完整性较好的煤壁的挠度特征,得到了煤壁容易发生片帮的位置在煤壁的中上部,并与现场实测结果对比分析,得到了大采高综采面两种典型的片帮形式:半煤壁片帮和整个煤壁片帮。
5) failure of rib
煤壁破坏
6) short-wall coal mining
短壁采煤
补充资料：标准煤(见煤当量)
标准煤(见煤当量)
standard coal
、~‘~1人、4《1工兀飞coal)见煤当等
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条