采矿与安全工程学报Issue(4)：593-600,8.
棚索协同支护锚索间距理论研究与应用
Theoretical research and application on anchor cable space of synergetic support for U-shaped shed and anchor cable
摘要
Abstract
In order to determine rational space between U-steel support and anchor cable in synergetic support system, the mechanical models of U-steel support and synergetic support for U-steel support and anchor cable have been established respectively. Anchor cable space in synergetic support has been determined by analyzing mechanical model based on principle of force method. It is studied that the anchor cable space in synergetic support for U-steel support and anchor cable relates to lateral pressure coefficient, the section size and burial depth of roadway. The analytical expression for lateral pressure coefficient of loose coal has been established. Furthermore, the synergetic support of U-steel support and anchor cable have been simulated. The result shows that deformation and plastic zone of surround-ing rock in roadway and maximum bending moment of U-steel support are decreased notably due to reasonable spacing of anchor cable in synergetic support system of U-shaped shed and anchor cable, which achieves coupling support of U-shaped shed and surrounding rock as well as anchor cable and deep surrounding rock. The engineering practice shows that safety production in coal mine is guaranteed because of controlling the stability of surrounding rock of roadway effectively after reinforcing each key position of U-steel support by adopting anchor cable and joist steel.关键词
软岩巷道/U型棚/协同支护/锚索间距/侧压力系数/数值模拟Key words
soft roadway/U-shaped shed/synergetic support/anchor cable space/lateral pressure coefficient/numerical modeling分类
矿业与冶金引用本文复制引用
张宏学,张继华,姚卫粉,卢小雨,王运臣..棚索协同支护锚索间距理论研究与应用[J].采矿与安全工程学报,2014,(4):593-600,8.基金项目
安徽省自然科学基金项目(1308085ME74) （1308085ME74）
