强烈震动对山区岩石属性参数变化的影响分析

采用静力分析法分析强烈震动对山区岩石属性参数变化的影响时,忽略了岩石碎裂底部和顶部之间的相互作用,存在对岩石密度以及其他参数属性分析结果不准确的问题。因此提出强烈震动对山区岩石属性参数变化的影响分析方法。该方法通过高程控制效应能有效显示强烈震动后岩石的碎裂程度,再将碎石间存在的卸荷和碾压力融入室内、外对原岩和碎裂岩石密度的测量结果,最后采用蜡封法得到强烈震动后碎裂岩石的各种参数变化结果,实现对岩石的密度、孔隙率、天然吸水率、渗透系数以及软化系数等属性参数的有效分析。实验结果说明,所提方法对强烈震动下山区岩石属性参数变化分析结果具有较高的准确性。

Influence of Strong Motion on the Attribute ParametersVariation of Rocks in Mountainous Areas

When using the traditional static analysis method to analyze the influence of strong motion on the variation of the attribute parameters of rocks in mountainous areas, the interaction between the bottom and top of the rock fragment is neglected, which leads to inaccurate analysis results of rock density and other attribute parameters. Therefore, in this study, an influence analysis method is proposed to analyze the influence of strong motion on the attribute parameters variation of rocks in mountainous areas. With the proposed method, the degree to which the rock was subjected to strong motion can be effectively shown through the elevation control effect. Indoor and outdoor measurements of the original and fragmented rock densities are carried out, and the unloading and pressure between gravels are added to the measurement results. Then the variation in the results of various parameters such as density, porosity, natural water absorption rate, permeability coefficient, and softening coefficient of rock are obtained with the wax-coated method, and then, they can be effectively analyzed. The experimental results that show the proposed method is highly accurate for analyzing the attribute parameters variation of rocks in mountainous areas subjected to strong motion.