Strata pressure of combining mining in steep and close seams
Strata pressure of combining mining in steep and close seams
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发表时间：
2004
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通讯作者：
Q. Tao
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作者：
Q. Tao
乌鲁木齐煤矿南段有30多个分层急倾斜煤层，其中多组煤层，一直是放顶煤的难题。介绍了近几年来在这类煤层中发展起来的分段崩落法和综放开采技术，主要介绍了开采应力的观测成果，并用三维数值模拟方法进行了条纹分析。
There are more than 30 layers steep seams in the Urumqi coal mine, in which many groups seams in south section, such always is the difficult problem in caving. Sublevel caving with combining mining in the close seams have developed in such kind of seams these years, mostly observing harvest of mining stress are introduced and fringe analysis has done with three-dimensions numerical simulation in this paper.