Cultivation Base of Mine Disaster Prevention and Control Province and Ministry Joint Key Lab, Shandong University
of Science and Technology

为科学认识和理解见方来压现象,能够有效防治顶板动力灾害,在分析坚硬岩层破断结构形成力学机理的基础上,讨论了顶板破断形式的主要影响因素、不同顶板初次破断形式及其转化规律,给出了顶板见方来压的实现条件。通过对全国部分煤矿坚硬岩层破断形式进行统计分析结果表明:顶板见方来压实现条件较为苛刻,其破断形式在统计结果中所占比例仅为4.54%左右。因此,在动力灾害防治工程中,不应不分条件过分强调见方来压现象,而是应该对不同类型顶板来压进行有效监测,并探索科学的顶板破断与来压预报方法。

A scientific cognation and understanding of the pressure weighing in a square meter phenomenon could effectively prevent and contral the roof dynamic disaster. Based on the solutions to the mechanics mechanism formed by the breaking structure of the hard rock strata, the paper discussed the main influence factors 0 f the roof breaking form, different roof initial breaking form and the conversion law and provided the realization condition of the roof square weighing. With the statistical analysis on the breaking form of the hard rock strata in the national partial coal mines, the results showed that the condition to realize the roof square weighing was har sh and the breaking form in the statistic results was in the percentage of 4. 54%. Therefore, in the dynamic disaster prevention and control engineering, a square weighi ng phenomenon should not over stressed not based on the condition, the different type roof weighing should be effectively monitored and measured and the roof breaki ng and weighing prediction method should be scientifically discovered.

“十二五”国家科技支撑计划资助项目(2012BAK04B06)；国家自然科学基金资助项目(51274133,51474137,51374140)；山东省自然科学基金重点资助项目(ZR2012EEZ002)；高等学校博士学科点专项科研基金资助项目(20123718110013)；