Based on compress experiment of coal cleat, mathematical model between stress and cleat width was erected.

基于煤割理压缩实验，建立了应力与割理宽度之间的数学模型。

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During the research on solid fuel ramjet (SFRJ), it is an important link for the design and experiment of SFRJ that a suitable mathematical model is built to simulate its internal work process.

在对固体燃料冲压发动机(SFRJ)的研究中，建立合适的数学模型对其内部工作过程进行模拟是SFRJ设计和实验的重要环节。

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Through analyzing rock failure due to rock burst in-situ, applying the rock burst strength theory and the stability theory, and using physical modelling experiment, the mathematical model is built.

数学模型是在实地分析岩爆破坏机制基础上，经过岩爆强度理论及稳定理论分析，并经过物理模型试验验证后建立的。

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