顶板运动与顶板突水关系的研究

Study on Relationship between Movement of Roof and Roof Water Inrush

以某矿40108工作面为例,首先通过理论分析和现场实测,确定40108工作面的初次来压步距67 m左右,周期来压步距30 m左右。其次分析了现场涌水量与工作面来压情况,确定涌水量增大期间的推进距离和来压步距大致相等。因此通过理论计算来压步距,推断顶板垮落的大概位置,预知涌水量增大的位置,为工作面顶板突水预防等工作提供依据。

In 40108 working face as an example, Firstly, through theoretical analysis and field measurement, determining the first working face of 40108 weighting step distance is about 67 m,the periodic weighting step distance is 30 m. Secondly,analysis of the field water inflow and working face to pressure, determine the inflow of water suddenly advancing distance and weighting step distance of roughly equal big, therefore through the theoretical calculation of pressure to step away from the inferred roof caving about location, predict the inflow increases position, and provide the basis for the working face roof water inrush prevention work.