本文推导了不同掩埋深度的掩埋巷道顶板压力计算公式。
In this paper, formula for calculating cover pressures of buried tunnel at different depth is deduced.
本文利用现有多种顶板压力计算模型，充分发挥每种模型的优势。
The paper studies how to utilize calculating models of various roof pressure and develops advantages of every kind of model.
研究表明，灰色模型能很好地模拟或反映顶板压力参数的变化过程与内在规律。
Studies shod that the grey models can simulate or reflect roof pressure parameters changing and its inner rules.
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