Based onmaterial mechanics,the paper presents a formula calculating the maximum span of headboard,proposes a newmethod of orepillar design,and calculate the parameters of belting.

• 文中应用材料力学,推导了计算顶板最大允许跨度的公式,提出了矿柱设计新方法,同时对锚杆支护参数进行了计算。