煤层关键层理论的程序实现

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钱鸣高院士提出了采场覆岩关键层理论,解决了对煤层覆岩破断起控制作用岩层的判别。但由于其力学模型理论较为复杂,计算量大,实践中判别出覆岩中关键层较繁琐。本文以关键层理论为基础,利用Visual Basic语言开发关键层判别程序,为解决上述问题提供参考。通过输入岩层的力学参数,计算得出硬岩位置及覆岩的破断距,进而判别出覆岩中关键层位置。本文以某煤矿浅埋煤层为对象,运用关键层判别程序,判别覆岩中关键层和亚关键层的位置,并推断出煤层覆岩破断和垮塌方式。通过与某煤矿覆岩实际垮落方式对比,本文利用Visual Basic语言开发的关键层判别程序具有一定可行性。
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