综掘巷道超前支护装备双组支撑支护特性实验研究

发布时间：2018-08-03 20:49

【摘要】：为提高综掘巷道的掘进效率、改善支护工艺,设计一种用于综掘巷道迎头顶板支护的迈步式超前支护装备。通过对装备工作原理的分析,建立其三维模型。为检验装备的支护效果,设计了支护特性实验方案,构建实验平台,基于实验平台进行了双组支撑状态下的支护实验。实验结果表明:顶板上离固支边越远处动态位移变形量越大,接触力波动也越大;在双组支撑状态下,顶板变形量最大达到9 mm,接触力最大幅值达到5.84 k N,位置均为顶板纵向中线位置处,在被支护后,该位置最迟趋于稳定;在双组支撑状态下,顶板变形及接触力经历2~3 s波动后都将趋于平稳;超前支护装备对顶板的稳定性能起到良好的控制作用,能提高顶板的安全性,为后续产品研发及工业实验提供依据。
[Abstract]:In order to improve the driving efficiency and improve the supporting technology of fully mechanized roadway, a step forward support equipment used in fully mechanized roadway roof support is designed. Through the analysis of the working principle of the equipment, the three-dimensional model is established. In order to test the support effect of the equipment, the experimental scheme of supporting characteristics is designed, the experimental platform is built, and the experimental platform is based on the experimental platform. The experimental results show that the greater the displacement and deformation of the roof, the greater the contact force fluctuates, the maximum deformation of the roof reaches 9 mm, the maximum amplitude of the contact force reaches 5.84 K N, and the position is at the position of the middle line of the top plate, after the support is supported. The position of the top plate deformation and contact force will tend to be stable after the 2~3 s fluctuation in the condition of two groups of support, and the advance support equipment plays a good control effect on the stability of the roof, can improve the safety of the roof, and provide the basis for the research and development of the follow-up products and the industrial testing.
【作者单位】：宿州学院机械与电子工程学院;辽宁工程技术大学机械工程学院;
【基金】：国家自然科学基金项目(51304107) 辽宁省教育厅创新团队项目(LT2013009);辽宁省教育厅项目(L2012118) 宿州学院专业带头人(2014XJZY31)
【分类号】：TD353

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