... soft budget constraints软预算约束 soft coal软煤（沥青煤、烟煤） soft credit非正式，不稳定的信用 ...
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文章通过对永华煤矿“三软煤层”煤巷矿压规律进行分析，提出了支护方案。
This paper puts forward support plan through analyzing strata behavior regularity of coal roadway in seam with soft roof, soft coal and soft floor.
利用该技术获取了研究区的构造软煤资料，对研究区的煤与瓦斯突出危险性区域进行了预测。
As well as the related information of deformed soft coal in study area was got by this technology; dangerous districts of coal and gas outburst were forecasted in study area.
研究表明：放顶煤开采、提高支架工作阻力可以减缓煤壁压力，煤体合理注水可以提高煤体黏聚力与抗剪强度，它们是防治极软煤层煤壁片帮的有效措施。
The following research results are obtained: the top coal caving technique and increasing the resistance of the support can reduce the pressure on the coal wall.
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