基于临时支护新装置的工序优化与支护性能分析
Process optimization and support performance analysis based on a new temporary support device
王云柱 1成云海 1王贯东 2苏畅 3李峰辉 4许文涛 1马梦想1
作者信息
- 1. 安徽理工大学 矿业工程学院,安徽 淮南 232001
- 2. 山东东安云矿业科技有限公司,山东 济南 271100
- 3. 安徽理工大学 机械工程学院,安徽 淮南 232001
- 4. 淮南师范学院 机械与电气工程学院,安徽 淮南 232038
- 折叠
摘要
针对掘进工作面存在的掘支平行作业难、用时比重失调问题,为实现平行作业、快速支护,设计了新的临时支护装置,具有尺寸可调、快速响应、及时支护的特点.采用理论分析加数值模拟的方法进行研究;介绍了装置的结构设计;以新巨龙煤矿综掘施工技术为例进行工艺优化,从理论上提出一种分区平行作业的施工技术;通过顶板两端简支岩梁力学模型,展开装置临时支护作用机理分析;并对装置的支护性能进行结构静力学分析.结果表明:在巷道顶板松动范围 0～3.30 m时,装置支护所需承受的载荷为 158.40 kN;仿真得到最大等效应力为 57.37 MPa,在装置顶梁下端与耳座位置交接处,最大位移量出现在中间梁上端中部,为 0.30 mm,装置的结构设计能满足支护要求.此研究可为实现快速掘进的平行作业,高效支护和安全生产,提供有益参考.
Abstract
Aiming at the problems of difficult parallel operation of excavation and support and imbalance of time proportion in heading face,in order to realize parallel operation and rapid support,a new temporary support device is designed,which has the characteristics of adjustable size,rapid response and timely support.The structure design of the device is introduced.Theoretical analysis and numerical simulation are carried out.Taking the fully mechanized excavation construction of a mine as an example,the process is optimized,and a construction technology of partition parallel operation is proposed theoretically.Through the mechanical model of simply supported rock beam at both ends of the roof,the mechanism of temporary support of the device is analyzed.The supporting performance of the device is analyzed by structural statics.The results show that when the roof looseness range of the roadway is 0～3.30 m,the load required for the device support is 158.40 kN;the maximum equivalent stress obtained by simulation is 57.37 MPa.At the junction of the lower end of the top beam of the device and the position of the ear seat,the maximum displacement appears in the middle of the upper end of the middle beam,which is 0.30 mm.The structural design of the device can meet the support requirements.
关键词
掘进工作面/临时支护装置/分区平行作业/工序优化/支护性能Key words
excavation face/temporary support device/partition parallel operation/process optimization/supporting performance引用本文复制引用
出版年
2024
NETL
NSTL
万方数据