CAJ | 학술논문

为了确定 U 型钢支架和锚索协同支护系统中锚索的合理间距，分别建立了 U 型钢支架以及U型钢支架和锚索协同支护的力学模型，采用力法原理对力学模型进行分析，确定了棚索协同支护系统中锚索的间距。计算结果表明：棚索协同支护锚索的间距与侧压力系数、巷道的断面尺寸和埋深有关。建立了松散煤体侧压力系数的解析表达式，对U型钢支架和锚索协同支护进行数值模拟。模拟结果表明：棚索协同支护系统中锚索的合理间距显著地减小了巷道围岩的变形量、塑性区的面积以及 U 型钢支架的最大弯矩，实现了 U 型棚与围岩之间以及锚索与深部围岩之间的耦合支护。实践表明：采用锚索和工字钢对U型钢支架的各关键部位进行加固，能够有效地控制巷道围岩的稳定性，保证煤矿的安全生产。
위료학정 U 형강지가화묘색협동지호계통중묘색적합리간거，분별건립료 U 형강지가이급U형강지가화묘색협동지호적역학모형，채용역법원리대역학모형진행분석，학정료붕색협동지호계통중묘색적간거。계산결과표명：붕색협동지호묘색적간거여측압력계수、항도적단면척촌화매심유관。건립료송산매체측압력계수적해석표체식，대U형강지가화묘색협동지호진행수치모의。모의결과표명：붕색협동지호계통중묘색적합리간거현저지감소료항도위암적변형량、소성구적면적이급 U 형강지가적최대만구，실현료 U 형붕여위암지간이급묘색여심부위암지간적우합지호。실천표명：채용묘색화공자강대U형강지가적각관건부위진행가고，능구유효지공제항도위암적은정성，보증매광적안전생산。
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.