【摘要】 引入19世纪末近代物理理论发展的"两朵乌云"之说,在认真总结我国煤巷锚杆支护技术所取得的一系列成功做法后,指出我国煤巷锚杆支护技术所存在的"两朵乌云"———实体煤巷厚层复合淋水软顶和综放沿空掘巷,分析了这两项支护技术的研究现状及存在的问题,同时提出了驱散"两朵乌云"的新思路和新途径。更多还原

【Abstract】 This paper summarized a series of successful bolt-supporting techniques for coal roadway in China and also points out two big problems of the roadway bolt-supporting at present - thick & combined soft roof with leak water in entire coal seam and roadway along next gob for fully-mechanized top-coal caving face. The present situation and the existing problems were systematically analyzed and corresponding new thoughts and solutions to the "Two Big Problems" have been put forward within the paper.更多还原