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首页> 外文会议>International symposium on mine planning and equipment selection >Strata control at the face with fully mechanized sub-level caving
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Strata control at the face with fully mechanized sub-level caving

机译：综放工作面控制地层

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The movement rules and structure characteristic of overlying rock and behavior in a sub-level face are studied by using in-situ measurements, equivalent material simulating test, FEM and mechanical analytical calculation in the paper. It is considered that the movement of overlying strata is a separation movement, and the height of the immediate roof caved has doubled. This paper presents a structural model of voussoir beam combined with semi-arch as the basic strata structure over the face, and analyses stability of the structure and interaction of two structures. According to analysis of relationship of "supporting-surrounding rock", the paper indicates the principle of selecting support types and feature of strata control in sub-level caving face. The research results in the paper have been applied in selecting and designing supports and strata control, and an obvious effect has been got in practice.
机译：通过实地测量，等效材料模拟试验，有限元法和力学分析计算，研究了下层工作面上覆岩的运动规律和结构特征以及行为。可以认为，上覆地层的运动是分离运动，并且直接顶下陷的屋顶的高度增加了一倍。本文提出了一种以半拱形为基础的地层结构的拱形梁的结构模型，并分析了结构的稳定性和两种结构的相互作用。通过对“支护-围岩”关系的分析，指出了分段放水面选择支护类型和地层控制特征的原则。本文的研究成果已应用于支护和地层控制的选择与设计中，并在实践中取得了明显的效果。

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