以徐庄煤矿7199工作面为例,研究了工作面来压与顶板突水的关系。首先运用理论分析和现场实测的方法,确定7199工作面的初次来压步距为63.5 m,周期来压步距为30.5 m。其次分析了现场涌水量与工作面的来压情况。最后,运用相似模拟技术分析了采煤工作面来压前期、初次来压和周期来压阶段顶板裂隙、离层的发育规律,解释了来压期间顶板突水机理。 Taking the coal face 7199 in Xuzhuang Coal Mine as an example, the relationship between pressure on the working face and water inrush from roof is studied. First of all, using the theoretical analysis and field measurement methods, it is confirmed that the initial pressure step of 7199 working face is 63.5 m, and the periodic pressure step is 30.5 m. Secondly, analyzed the inflow of water and the pressure of working face. Finally, the similar simulation technique was used to analyze the law of the development of roof fissures and delamination during the period of pre-pressure, initial pressure and periodic pressure in coal mining face, and the roof water inrush mechanism was explained.