In addition, the validity of applying classical beam theory to calculate supporting parameter was discussed by means of comparing DDM calculating result with that of by the beam theory.

• 通过DDM计算结果与传统梁理论所得结果的比较及顶板围岩应力分布特徵的分析，指出了利用梁理论进行锚杆支护设计的不合理性。