利用承压砌块模型分析了周期来压过程，并给出了初次来压和周期来压机理。
Periodic weighting was analysed by the bearing wedge model, simultaneity, the mechanics of first weighting and periodic weighting were expounded.
根据岩梁周期裂断步距与周期来压步距的力学结构，建立了各自的力学模型，推导其运动方程。
According to structural mechanics of cyclic fracturing length and the cyclic weighting interval for the rock beam fracture, Mechanical models and the motion equation are established.
现场矿山压力观测表明，无论是工作面顶板正常工作期间还是周期来压期间，工作面设备均表现出了良好的稳定性。
The site mine pressure observation showed that during the face roof normal period or the roof periodical pressurized period, the face equipment all presented a good stability.
现场矿山压力观测表明，无论是工作面顶板正常工作期间还是周期来压期间，工作面设备均表现出了良好的稳定性。
The site mine pressure observation showed that during the face roof normal period or the roof periodical pressurized period, the face equipment all presented a good stability.
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