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首页> 外文期刊>Journal of coal science & engineering (China) >Study on the fracture and weighting of main roof under complicated conditions foof under complicated conditions in longwall mining
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Study on the fracture and weighting of main roof under complicated conditions foof under complicated conditions in longwall mining

机译：复杂条件下长壁开采复杂条件下主顶板的断裂与失重研究

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摘要

To clarify and control the collapse and weighting of main roof in longwall mining is one of the important research problems in ground control. Based on the results of physical model experiment and field measurement, the behaviour of main roof above trapezoidal goat or with fault is studied in this paper. The fracture and weighting of main roof above trapezoidal goaf are different from those above rectangular goaf. It depends on the mechanical relation between main roof blocks whether the plate blocks of main roof on both sides of fault simultaneously break and collapse.
机译：阐明和控制长壁开采中主顶板的塌陷和权重是地面控制中的重要研究问题之一。基于物理模型试验和现场测量的结果，研究了梯形山羊上方或有断层的主屋顶的行为。梯形采空区上方的主顶板的断裂和重量不同于矩形采空区上方的主顶板。断层两侧主顶板块是否同时断裂和塌陷取决于主顶板块之间的力学关系。

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