陕西煤炭Issue(4)：9-12,4.
特厚煤层回采巷道顶板锚杆－长锚杆协同支护研究
Study on collaborative support of bolt and long bolt in mining roadway of extra thick coal seam
摘要
Abstract
In order to solve the problems of roof large deformation and easy falling in mining roadway of extra thick coal seam, the collaborative support of bolt and long bolt was proposed, the mechanical properties of long bolt and small-hole prestressed anchor cable were test and the support effects of bolt-cable combined support and bolt-long bolt collaborative support were compared by numerical simulation.The industrial test in Nanyangpo Mine shows that the bolt-long bolt collab-orative support can adapt the roof large deformation and prevent the roof caving caused by anchor cable breaking.关键词
长锚杆/协同支护/预应力锚索/数值模拟Key words
long bolt/collaborative support/prestressed anchor cable/numerical simulation分类
矿业与冶金引用本文复制引用
..特厚煤层回采巷道顶板锚杆－长锚杆协同支护研究[J].陕西煤炭,2015,(4):9-12,4.
