采矿与安全工程学报2016，Vol.33Issue(4)：643-648,6.DOI:10.13545/j.cnki.jmse.2016.04.012
巷道底角锚杆控制底鼓机理及选型试验
Research on mechanism for floor heave control in the roadway by base-angel-bolt and its type selection test
摘要
Abstract
The geological and mechanical conditions of roadways become more complicated compared with those in the shallow part with the mining depth increasing. Consequently, the nonlinear mechanical phenomena especially the problem of floor heave in the roadway occur frequently. In order to explore the most effective type of cable fixed in floor, at first, the mechanism of floor heave controlled by the base-angle-bolt has been analyzed in two ways including cutting off plastic slip line effectively and de-composing pressure according to the mechanical analytical model of the bolt controlling roadway floor heave. Then six types of base-angel-bolt with different materials and specifications have been designed to carry out bending test. According to the optimized analysis of the results, the most appropriate type of I-3 has been determined and successfully applied in the engineering practice of Kongzhuang -785 mine in Datun. And the displacement monitoring curve has indicated that an obvious effectiveness has been obtained by applying the type of I-3 base-angle-bolt.关键词
深部工程/底鼓/底角锚杆/弯曲试验Key words
deep engineering/floor heave/base-angel-bolt/bending test分类
矿业与冶金引用本文复制引用
杨军,石海洋,齐干..巷道底角锚杆控制底鼓机理及选型试验[J].采矿与安全工程学报,2016,33(4):643-648,6.基金项目
国家自然科学基金项目(51304210)；教育部高等学校博士学科点专项科研基金项目(20120023120014) （51304210）
