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利用RMT-150C微机控制电液伺服岩石力学试验机测定了三岔河矿区顶板粉砂岩的各项物理力学指标;采用分级加卸载的方式在RYL-600岩石剪切流变试验仪上进行了一系列的岩石流变试验;分析试验数据,发现该区岩石具有弹性-粘性-粘弹性的流变特性,总结岩石流变特性,对其流变模型进行辨识,发现岩石的流变特性与伯格斯模型性质很相似;利用伯格斯模型对该区岩石的流变特性展开研究,求取了不同应力水平下伯格斯流变模型各项参数,利用伯格斯方程拟合得出岩石的流变理论曲线,理论曲线和实际试验数据吻合较好,说明伯格斯模型能较好地反映三岔河矿区顶板粉砂岩的流变特性.
The physical and mechanical indexes of roof siltstone in Sanchahe mining area were determined by using RMT-150C computer-controlled electro-hydraulic servo rock mechanics testing machine. The physical and mechanical indexes of roof siltstone in Sanchahe mining area were determined by RST- Series of rock rheological tests; analysis of experimental data and found that the rock has elastic - viscous - viscoelastic rheological properties of rock rheology, summarize the rheological properties of the model to identify and find the rheological properties of rock and Berg The Burns model is used to study the rheological properties of the rocks in this area. The parameters of Burgess rheological model under different stress levels are obtained. The Burgers’ The rheological theory curve, the theoretical curve and the actual experimental data are in good agreement, indicating that the Burgers model can well reflect the rheological characteristics of the top siltstone in Sanchahe mining area.