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为促进矿山安全生产及为密闭墙设计提供科学依据,以神华集团的抗冲击密闭墙为对象,通过ANSYS Workbench软件建立了密闭墙计算模型,并设置4条不同的加载曲线对墙体进行冲击,利用瞬态分析得出了墙体在4种不同持续性的爆炸载荷作用下的受力状态。通过分析墙体的受力分布,得出其在一定强度的冲击下的安全性。结果显示在给定的载荷下,该密闭墙的安全防护性能较好,密闭墙容易出现损伤的危险区域主要为内墙背部和掏槽处,可在内墙加入钢筋减少损伤。
In order to promote the safe production of mines and provide a scientific basis for the design of confined walls, the calculation model of confined walls was set up with ANSYS Workbench software for the anti-impact confinement wall of Shenhua Group. Four different loading curves were set up to impact the walls, Using transient analysis, the stress state of the wall under four different sustained explosive loads was obtained. By analyzing the stress distribution of the wall, we can draw the conclusion that under the impact of a certain strength, the safety of the wall is obtained. The results show that under a given load, the safety performance of the closed wall is better. The danger areas of the closed wall are mainly the back of the inner wall and the undercut. Reinforcing bars can be added to the inner wall to reduce the damage.