In order to quantitatively study layerslip-dipslip, nappe-glide structure systems in the Hunan-Jiangxiareas, samples with divided layers of these classical cross sections in the studied area were selected, and various...In order to quantitatively study layerslip-dipslip, nappe-glide structure systems in the Hunan-Jiangxiareas, samples with divided layers of these classical cross sections in the studied area were selected, and various physicomechanical parameters were systematically determined. Furthermore, five regional layer-slip systems of the basement and the cover strata were scientifically divided in the Middle Yangzi area, and they have been synthetically compared with the determined parameters in the Lower Yangzi area. Overall, the parameter value of a sliplayer presenting relative plasticity, ductility and viscosity is higher than a non-slip layer presenting relative elasticity, brittleness and rigidity, except the value of the Poission's ratio of the rock and the determined temperature of the inclusion, other parameters (such as the uniaxial pressure strength of the rock, the elastic module, the density and the elastic wave velocity) are all lower. On the basis of the study, the authors still further explain a pneumatic cushion effect of the slip-layer and the research significance.展开更多
基金Project supported by the National Natural Science Foundation of China.
文摘In order to quantitatively study layerslip-dipslip, nappe-glide structure systems in the Hunan-Jiangxiareas, samples with divided layers of these classical cross sections in the studied area were selected, and various physicomechanical parameters were systematically determined. Furthermore, five regional layer-slip systems of the basement and the cover strata were scientifically divided in the Middle Yangzi area, and they have been synthetically compared with the determined parameters in the Lower Yangzi area. Overall, the parameter value of a sliplayer presenting relative plasticity, ductility and viscosity is higher than a non-slip layer presenting relative elasticity, brittleness and rigidity, except the value of the Poission's ratio of the rock and the determined temperature of the inclusion, other parameters (such as the uniaxial pressure strength of the rock, the elastic module, the density and the elastic wave velocity) are all lower. On the basis of the study, the authors still further explain a pneumatic cushion effect of the slip-layer and the research significance.
