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杆柱是国外维护巷道和控制回采工作面顶板的一种新方法,自1956年起,我国京西、淮南、开灤和淄博等煤矿,在科学研究单位的配合下,都先后进行了杆柱的工业性试验,这些试验已经获得良好的效果,目前正在进一步研究和广泛地应用这种支架。
Pillars and columns are the new ways to maintain the roadway and control the roof of mining face in foreign countries. Since 1956, coal mines in West Beijing, Huainan, Kailuan and Zibo in our country have successively carried out the pillar These trials have yielded good results and are currently under further study and widespread use of such stents.