基于弹性塑料机械学的滑动液压支系统的多条件模拟分析
Changji Wang1,2, Wanting Wang3, Yu Guo4
1School of Chemical and Blasting Engineering, Anhui University of Science and Technology, Huainan, 232000, China.
Scientific reports
|May 9, 2024
概括
一个新的自动式液压支系统有效地解决了深层煤矿屋顶支挑战. 数字模拟证实了它的稳定性,确保在破碎岩石环境中安全操作.
科学领域:
- 采矿工程 采矿工程 采矿工程
- 地质技术工程 地质技术工程
- 机械工程 机械工程
背景情况:
- 深层煤矿面临的挑战是支周围岩石的破裂和软弱.
- 在这样的环境中,持续的屋顶支是很困难的,特别是在中国的华南地区.
研究的目的:
- 设计和开发一个自动移动的液压支系统,用于在深层煤矿中增强屋顶支.
- 在各种操作条件下分析液压支系统的机械行为.
主要方法:
- 开发了一种自动移动的液压支系统.
- 利用弹性塑料力学理论建立了一个数值分析模型.
- 在踏步过程中计算了支的移位,应力和应变.
- 经过验证的数值模拟结果与实际工作现场的现场数据.
主要成果:
- 在三个操作条件下进行了数值模拟.
- 在各自条件下,最大等效应力为245.33 MPa,246.82 MPa和245.27 MPa.
- 所有计算的最大应力值都低于材料的屈服强度,表明正常运行.
结论:
- 自动式液压支系统满足稳定性和可靠性的运行要求.
- 这些发现为评估液压支系统和优化深度采矿的施工流程提供了理论框架.
- 开发的系统为在具有挑战性的采矿条件下支持破裂和脆弱的屋顶结构提供了可行的解决方案.
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